Tcl package Thread source code

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2000-01-19
22:57
This thread workspace is a loadable extension based on the original testthread command. check-in: 6808f73eac user: welch tags: trunk
22:57
This thread workspace is a loadable extension based on the original testthread command. Closed-Leaf check-in: b740a4c20b user: welch tags: thread-vendor-branch, thread-1-0
22:57
initial empty check-in check-in: 151087f438 user: root tags: trunk

Added doc/thread.html. 









































































































































































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<HTML><HEAD><TITLE>Tcl Commands - thread manual page</TITLE></HEAD><BODY>
<H3><A NAME="M2">NAME</A></H3>
thread - Create and manipulate threads with Tcl interpreters in them.
<H3><A NAME="M3">SYNOPSIS</A></H3>
<B>thread create</B><I>?script?</I><BR>
<B>thread id</B><BR>
<B>thread errorproc</B> <I>procname</I><BR>
<B>thread exit</B><BR>
<B>thread names</B><BR>
<B>thread send</B> <I>id </I><B>?-async?</B><I> script</I><BR>
<B>thread wait</B><BR>

<H3><A NAME="M4">DESCRIPTION</A></H3>
The
<b>thread</b>
command creates threads that contain Tcl interpreters, and it lets you
send scripts to those threads.
<p>
<b>thread create</b> creates a thread that contains a Tcl interpreter.
The Tcl interpreter either evaluates the <i>script</i>, if specified,
or it waits in the event loop for scripts that arrive via the
<b>thread send</b> command.
The result of <b>thread create</b> is the ID of the thread.
The result, if any, of <i>script</i> is ignored.
<p>
<b>thread id</b> returns the ID of the current thread.
<p>
<b>thread errorproc</b> sets a handler for errors that occur in other
threads.  By default, an uncaught error in a thread terminates that thread
and causes an error message to be sent to the standard error channel.
You can change the default reporting scheme by registering a procedure
that is called to report the error.
The <i>proc</i> is called in the interpreter that invoked the
<b>thread errorproc</b> command.  The original thread that has the
uncaught error is terminated in any case.
The <i>proc</i> is called like this:
<ul>
<pre>
myerroproc thread_id errorInfo
</pre>
</ul>
<p>
<b>thread exit</b> terminates the current thread.
There is no way to force another thread to exit - you can only
ask it to terminate by sending it a command.
<p>
<b>thread names</b> returns a list of thread IDs.
These are only for threads that have been created via <b>thread create</b>.
If your application creates other threads at the C level, they
are not reported by <b>thread names</b>.
<p>
<b>thread send</b> passes a <i>script</i> to another thread and,
optionally, waits for the result.  If the <b>-async</b> flag is specified
then the caller does not wait for the result.  The target thread must
enter its event loop in order to receive script messages.  This is done
by default for threads created without a startup script.  Threads can
enter the event loop explicitly by calling 
<b>thread wait</b> or <b>vwait</b>.
<p>
<b>thread wait</b> enters the event loop so a thread can receive
messages from <b>thread send</b>.  This is equivalent to
<b>vwait</b> <i>unusedvariable</i>.

<H3><A NAME="M4">DISCUSSION</A></H3>

The fundamental threading model in Tcl
is that there can be one or more Tcl interpreters per thread, but
each Tcl interpreter should only be used by a single thread.
A "shared memory" abstraction is awkward to provide in Tcl because
Tcl makes assumptions about variable and data ownership.
Therefore this extension supports a simple form of threading where
the main thread can manage several background, or "worker" threads.
For example, an event-driven server can pass requests to worker threads,
and then await responses from worker threads or new client requests.
Everything goes through the common Tcl event loop, so message
passing between threads works naturally with event-driven I/O,
<b>vwait</b> on variables, and so forth.

<h3>SEE ALSO</h3>
<a href=http://www.scriptics.com/support/howto/thread_model.html>
A Guide to the Tcl Threading Model</a>.

</BODY></HTML>

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/* 
 * threadCmd.c --
 *
 *	This file implements the thread command.
 *
 *	Some of this code is based on work done by Richard Hipp on behalf of
 *	Conservation Through Innovation, Limited, with their permission.
 *
 * Copyright (c) 1998 by Sun Microsystems, Inc.
 * Copyright (c) 1999,2000 by Scriptics Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: threadCmd.c,v 1.1.1.1 2000/01/19 22:57:23 welch Exp $
 */

#include "tcl.h"

/*
 * Each thread has an single instance of the following structure.  There
 * is one instance of this structure per thread even if that thread contains
 * multiple interpreters.  The interpreter identified by this structure is
 * the main interpreter for the thread.  
 *
 * The main interpreter is the one that will process any messages 
 * received by a thread.  Any thread can send messages but only the
 * main interpreter can receive them.
 */

typedef struct ThreadSpecificData {
    Tcl_ThreadId  threadId;          /* Tcl ID for this thread */
    Tcl_Interp *interp;              /* Main interpreter for this thread */
    int flags;                       /* See the TP_ defines below... */
    struct ThreadSpecificData *nextPtr;	/* List for "thread names" */
    struct ThreadSpecificData *prevPtr;	/* List for "thread names" */
} ThreadSpecificData;
static Tcl_ThreadDataKey dataKey;

/*
 * This is a convenience macro used to initialize a thread local storage ptr.
 */
#ifndef TCL_TSD_INIT
#define TCL_TSD_INIT(keyPtr)	(ThreadSpecificData *)Tcl_GetThreadData((keyPtr), sizeof(ThreadSpecificData))
#endif

/*
 * This list is used to list all threads that have interpreters.
 * This is protected by threadMutex.
 */

static struct ThreadSpecificData *threadList;

/*
 * The following bit-values are legal for the "flags" field of the
 * ThreadSpecificData structure.
 */
#define TP_Dying               0x001 /* This thread is being cancelled */

/*
 * An instance of the following structure contains all information that is
 * passed into a new thread when the thread is created using either the
 * "thread create" Tcl command or the ThreadCreate() C function.
 */

typedef struct ThreadCtrl {
    char *script;    /* The TCL command this thread should execute */
    int flags;        /* Initial value of the "flags" field in the 
                       * ThreadSpecificData structure for the new thread.
                       * Might contain TP_Detached or TP_TclThread. */
    Tcl_Condition condWait;
    /* This condition variable is used to synchronize
     * the parent and child threads.  The child won't run
     * until it acquires threadMutex, and the parent function
     * won't complete until signaled on this condition
     * variable. */
} ThreadCtrl;

/*
 * This is the event used to send scripts to other threads.
 */

typedef struct ThreadEvent {
    Tcl_Event event;		/* Must be first */
    char *script;		/* The script to execute. */
    struct ThreadEventResult *resultPtr;
				/* To communicate the result.  This is
				 * NULL if we don't care about it. */
} ThreadEvent;

typedef struct ThreadEventResult {
    Tcl_Condition done;		/* Signaled when the script completes */
    int code;			/* Return value of Tcl_Eval */
    char *result;		/* Result from the script */
    char *errorInfo;		/* Copy of errorInfo variable */
    char *errorCode;		/* Copy of errorCode variable */
    Tcl_ThreadId srcThreadId;	/* Id of sending thread, in case it dies */
    Tcl_ThreadId dstThreadId;	/* Id of target thread, in case it dies */
    struct ThreadEvent *eventPtr;	/* Back pointer */
    struct ThreadEventResult *nextPtr;	/* List for cleanup */
    struct ThreadEventResult *prevPtr;

} ThreadEventResult;

static ThreadEventResult *resultList;

/*
 * This is for simple error handling when a thread script exits badly.
 */

static Tcl_ThreadId errorThreadId;
static char *errorProcString;

/* 
 * Access to the list of threads and to the thread send results is
 * guarded by this mutex. 
 */

TCL_DECLARE_MUTEX(threadMutex)

#undef TCL_STORAGE_CLASS
#define TCL_STORAGE_CLASS DLLEXPORT

EXTERN int	Thread_Init _ANSI_ARGS_((Tcl_Interp *interp));
EXTERN int	ThreadObjCmd _ANSI_ARGS_((ClientData clientData,
	Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
EXTERN int	Thread_Create _ANSI_ARGS_((Tcl_Interp *interp,
	CONST char *script));
EXTERN int	Thread_List _ANSI_ARGS_((Tcl_Interp *interp));
EXTERN int	Thread_Send _ANSI_ARGS_((Tcl_Interp *interp, Tcl_ThreadId id,
	char *script, int wait));

#undef TCL_STORAGE_CLASS
#define TCL_STORAGE_CLASS DLLIMPORT

#ifdef MAC_TCL
static pascal void *NewThread _ANSI_ARGS_((ClientData clientData));
#else
static void     NewThread _ANSI_ARGS_((ClientData clientData));
#endif
static void	ListRemove _ANSI_ARGS_((ThreadSpecificData *tsdPtr));
static void	ListUpdateInner _ANSI_ARGS_((ThreadSpecificData *tsdPtr));
static int	ThreadEventProc _ANSI_ARGS_((Tcl_Event *evPtr, int mask));
static void	ThreadErrorProc _ANSI_ARGS_((Tcl_Interp *interp));
static void	ThreadFreeProc _ANSI_ARGS_((ClientData clientData));
static int	ThreadDeleteEvent _ANSI_ARGS_((Tcl_Event *eventPtr,
	ClientData clientData));
static void	ThreadExitProc _ANSI_ARGS_((ClientData clientData));


/*
 *----------------------------------------------------------------------
 *
 * Thread_Init --
 *
 *	Initialize the thread command.
 *
 * Results:
 *      TCL_OK if the package was properly initialized.
 *
 * Side effects:
 *	Add the "thread" command to the interp.
 *
 *----------------------------------------------------------------------
 */

int
Thread_Init(interp)
    Tcl_Interp *interp; /* The current Tcl interpreter */
{
    if (Tcl_InitStubs(interp, "8.1", 0) == NULL) {
	return TCL_ERROR;
    }
    Tcl_CreateObjCommand(interp,"thread", ThreadObjCmd, 
	    (ClientData)NULL ,NULL);
    if (Tcl_PkgProvide(interp, "Thread", "2.0" ) != TCL_OK) {
	return TCL_ERROR;
    }
    return TCL_OK;
}


/*
 *----------------------------------------------------------------------
 *
 * ThreadObjCmd --
 *
 *	This procedure is invoked to process the "thread" Tcl command.
 *	See the user documentation for details on what it does.
 *
 *	thread create
 *	thread send id ?-async? script
 *	thread exit
 *	thread info id
 *	thread names
 *	thread wait
 *	thread errorproc proc
 *
 * Results:
 *	A standard Tcl result.
 *
 * Side effects:
 *	See the user documentation.
 *
 *----------------------------------------------------------------------
 */

	/* ARGSUSED */
int
ThreadObjCmd(dummy, interp, objc, objv)
    ClientData dummy;			/* Not used. */
    Tcl_Interp *interp;			/* Current interpreter. */
    int objc;				/* Number of arguments. */
    Tcl_Obj *CONST objv[];		/* Argument objects. */
{
    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
    int option;
    static char *threadOptions[] = {"create", "exit", "id", "names",
				    "send", "wait", "errorproc", (char *) NULL};
    enum options {THREAD_CREATE, THREAD_EXIT, THREAD_ID, THREAD_NAMES,
		  THREAD_SEND, THREAD_WAIT, THREAD_ERRORPROC};

    if (objc < 2) {
	Tcl_WrongNumArgs(interp, 1, objv, "option ?args?");
	return TCL_ERROR;
    }
    if (Tcl_GetIndexFromObj(interp, objv[1], threadOptions,
	    "option", 0, &option) != TCL_OK) {
	return TCL_ERROR;
    }

    /* 
     * Make sure the initial thread is on the list before doing anything.
     */

    if (tsdPtr->interp == NULL) {
	Tcl_MutexLock(&threadMutex);
	tsdPtr->interp = interp;
	ListUpdateInner(tsdPtr);
	Tcl_CreateThreadExitHandler(ThreadExitProc, NULL);
	Tcl_MutexUnlock(&threadMutex);
    }

    switch ((enum options)option) {
	case THREAD_CREATE: {
	    char *script;
	    if (objc == 2) {
		script = "thread wait";	/* Just enter the event loop */
	    } else if (objc == 3) {
		script = Tcl_GetString(objv[2]);
	    } else {
		Tcl_WrongNumArgs(interp, 2, objv, "?script?");
		return TCL_ERROR;
	    }
	    return ThreadCreate(interp, script);
	}
	case THREAD_EXIT: {
	    if (objc > 2) {
		Tcl_WrongNumArgs(interp, 1, objv, NULL);
		return TCL_ERROR;
	    }
	    ListRemove(NULL);
	    Tcl_ExitThread(0);
	    return TCL_OK;
	}
	case THREAD_ID:
	    if (objc == 2) {
		Tcl_Obj *idObj = Tcl_NewLongObj((long)Tcl_GetCurrentThread());
		Tcl_SetObjResult(interp, idObj);
		return TCL_OK;
	    } else {
		Tcl_WrongNumArgs(interp, 2, objv, NULL);
		return TCL_ERROR;
	    }
	case THREAD_NAMES: {
	    if (objc > 2) {
		Tcl_WrongNumArgs(interp, 2, objv, NULL);
		return TCL_ERROR;
	    }
	    return Thread_List(interp);
	}
	case THREAD_SEND: {
	    long id;
	    char *script;
	    int wait, arg;

	    if ((objc != 4) && (objc != 5)) {
		Tcl_WrongNumArgs(interp, 1, objv, "send ?-async? id script");
		return TCL_ERROR;
	    }
	    if (objc == 5) {
		if (strcmp("-async", Tcl_GetString(objv[2])) != 0) {
		    Tcl_WrongNumArgs(interp, 1, objv, "send ?-async? id script");
		    return TCL_ERROR;
		}
		wait = 0;
		arg = 3;
	    } else {
		wait = 1;
		arg = 2;
	    }
	    if (Tcl_GetLongFromObj(interp, objv[arg], &id) != TCL_OK) {
		return TCL_ERROR;
	    }
	    arg++;
	    script = Tcl_GetString(objv[arg]);
	    return Thread_Send(interp, (Tcl_ThreadId) id, script, wait);
	}
	case THREAD_WAIT: {
	    while (1) {
		(void) Tcl_DoOneEvent(TCL_ALL_EVENTS);
	    }
	}
	case THREAD_ERRORPROC: {
	    /*
	     * Arrange for this proc to handle thread death errors.
	     */

	    char *proc;
	    if (objc != 3) {
		Tcl_WrongNumArgs(interp, 1, objv, "errorproc proc");
		return TCL_ERROR;
	    }
	    Tcl_MutexLock(&threadMutex);
	    errorThreadId = Tcl_GetCurrentThread();
	    if (errorProcString) {
		ckfree(errorProcString);
	    }
	    proc = Tcl_GetString(objv[2]);
	    errorProcString = ckalloc(strlen(proc)+1);
	    strcpy(errorProcString, proc);
	    Tcl_MutexUnlock(&threadMutex);
	    return TCL_OK;
	}
    }
    return TCL_OK;
}


/*
 *----------------------------------------------------------------------
 *
 * Thread_Create --
 *
 *	This procedure is invoked to create a thread containing an interp to
 *	run a script.  This returns after the thread has started executing.
 *
 * Results:
 *	A standard Tcl result, which is the thread ID.
 *
 * Side effects:
 *	Create a thread.
 *
 *----------------------------------------------------------------------
 */

	/* ARGSUSED */
int
ThreadCreate(interp, script, stacksize)
    Tcl_Interp *interp;			/* Current interpreter. */
    CONST char *script;			/* Script to execute */
    int stacksize;			/* zero for default size */
{
    ThreadCtrl ctrl;
    Tcl_ThreadId id;

    ctrl.script = (char *) script;
    ctrl.condWait = NULL;
    ctrl.flags = 0;

    Tcl_MutexLock(&threadMutex);
    if (TclpThreadCreate(&id, NewThread, (ClientData) &ctrl) != TCL_OK) {
	Tcl_MutexUnlock(&threadMutex);
        Tcl_AppendResult(interp,"can't create a new thread",0);
	ckfree((void*)ctrl.script);
	return TCL_ERROR;
    }

    /*
     * Wait for the thread to start because it is using something on our stack!
     */

    Tcl_ConditionWait(&ctrl.condWait, &threadMutex, NULL);
    Tcl_MutexUnlock(&threadMutex);
    TclFinalizeCondition(&ctrl.condWait);
    Tcl_SetObjResult(interp, Tcl_NewLongObj((long)id));
    return TCL_OK;
}

/*
 *------------------------------------------------------------------------
 *
 * NewThread --
 *
 *    This routine is the "main()" for a new thread whose task is to
 *    execute a single TCL script.  The argument to this function is
 *    a pointer to a structure that contains the text of the TCL script
 *    to be executed.
 *
 *    Space to hold the script field of the ThreadControl structure passed 
 *    in as the only argument was obtained from malloc() and must be freed 
 *    by this function before it exits.  Space to hold the ThreadControl
 *    structure itself is released by the calling function, and the
 *    two condition variables in the ThreadControl structure are destroyed
 *    by the calling function.  The calling function will destroy the
 *    ThreadControl structure and the condition variable as soon as
 *    ctrlPtr->condWait is signaled, so this routine must make copies of
 *    any data it might need after that point.
 *
 * Results:
 *    none
 *
 * Side effects:
 *    A TCL script is executed in a new thread.
 *
 *------------------------------------------------------------------------
 */
#ifdef MAC_TCL
static pascal void *
#else
static void
#endif
NewThread(clientData)
    ClientData clientData;
{
    ThreadCtrl *ctrlPtr = (ThreadCtrl*)clientData;
    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
    int result;
    char *threadEvalScript;

    /*
     * Initialize the interpreter.  This should be more general.
     */

    tsdPtr->interp = Tcl_CreateInterp();
    result = Tcl_Init(tsdPtr->interp);
    result = Thread_Init(tsdPtr->interp);

    /*
     * Update the list of threads.
     */

    Tcl_MutexLock(&threadMutex);
    ListUpdateInner(tsdPtr);
    /*
     * We need to keep a pointer to the alloc'ed mem of the script
     * we are eval'ing, for the case that we exit during evaluation
     */
    threadEvalScript = (char *) ckalloc(strlen(ctrlPtr->script)+1);
    strcpy(threadEvalScript, ctrlPtr->script);

    Tcl_CreateThreadExitHandler(ThreadExitProc, (ClientData) threadEvalScript);

    /*
     * Notify the parent we are alive.
     */

    Tcl_ConditionNotify(&ctrlPtr->condWait);
    Tcl_MutexUnlock(&threadMutex);

    /*
     * Run the script.
     */

    Tcl_Preserve((ClientData) tsdPtr->interp);
    result = Tcl_Eval(tsdPtr->interp, threadEvalScript);
    if (result != TCL_OK) {
	ThreadErrorProc(tsdPtr->interp);
    }

    /*
     * Clean up.
     */

    ListRemove(tsdPtr);
    Tcl_Release((ClientData) tsdPtr->interp);
    Tcl_DeleteInterp(tsdPtr->interp);
    Tcl_ExitThread(result);
#ifdef MAC_TCL
    return NULL;
#endif
}

/*
 *------------------------------------------------------------------------
 *
 * ThreadErrorProc --
 *
 *    Send a message to the thread willing to hear about errors.
 *
 * Results:
 *    none
 *
 * Side effects:
 *    Send an event.
 *
 *------------------------------------------------------------------------
 */
static void
ThreadErrorProc(interp)
    Tcl_Interp *interp;		/* Interp that failed */
{
    Tcl_Channel errChannel;
    char *errorInfo, *script;
    char *argv[3];
    char buf[10];
    sprintf(buf, "%ld", (long) Tcl_GetCurrentThread());

    errorInfo = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY);
    if (errorProcString == NULL) {
	errChannel = Tcl_GetStdChannel(TCL_STDERR);
	Tcl_WriteChars(errChannel, "Error from thread ", -1);
	Tcl_WriteChars(errChannel, buf, -1);
	Tcl_WriteChars(errChannel, "\n", 1);
	Tcl_WriteChars(errChannel, errorInfo, -1);
	Tcl_WriteChars(errChannel, "\n", 1);
    } else {
	argv[0] = errorProcString;
	argv[1] = buf;
	argv[2] = errorInfo;
	script = Tcl_Merge(3, argv);
	Thread_Send(interp, errorThreadId, script, 0);
	ckfree(script);
    }
}


/*
 *------------------------------------------------------------------------
 *
 * ListUpdateInner --
 *
 *    Add the thread local storage to the list.  This assumes
 *	the caller has obtained the mutex.
 *
 * Results:
 *    none
 *
 * Side effects:
 *    Add the thread local storage to its list.
 *
 *------------------------------------------------------------------------
 */
static void
ListUpdateInner(tsdPtr)
    ThreadSpecificData *tsdPtr;
{
    if (tsdPtr == NULL) {
	tsdPtr = TCL_TSD_INIT(&dataKey);
    }
    tsdPtr->threadId = Tcl_GetCurrentThread();
    tsdPtr->nextPtr = threadList;
    if (threadList) {
	threadList->prevPtr = tsdPtr;
    }
    tsdPtr->prevPtr = NULL;
    threadList = tsdPtr;
}

/*
 *------------------------------------------------------------------------
 *
 * ListRemove --
 *
 *    Remove the thread local storage from its list.  This grabs the
 *	mutex to protect the list.
 *
 * Results:
 *    none
 *
 * Side effects:
 *    Remove the thread local storage from its list.
 *
 *------------------------------------------------------------------------
 */
static void
ListRemove(tsdPtr)
    ThreadSpecificData *tsdPtr;
{
    if (tsdPtr == NULL) {
	tsdPtr = TCL_TSD_INIT(&dataKey);
    }
    Tcl_MutexLock(&threadMutex);
    if (tsdPtr->prevPtr) {
	tsdPtr->prevPtr->nextPtr = tsdPtr->nextPtr;
    } else {
	threadList = tsdPtr->nextPtr;
    }
    if (tsdPtr->nextPtr) {
	tsdPtr->nextPtr->prevPtr = tsdPtr->prevPtr;
    }
    tsdPtr->nextPtr = tsdPtr->prevPtr = 0;
    Tcl_MutexUnlock(&threadMutex);
}


/*
 *------------------------------------------------------------------------
 *
 * Thread_List --
 *
 *    Return a list of threads running Tcl interpreters.
 *
 * Results:
 *    A standard Tcl result.
 *
 * Side effects:
 *    None.
 *
 *------------------------------------------------------------------------
 */
int
Thread_List(interp)
    Tcl_Interp *interp;
{
    ThreadSpecificData *tsdPtr;
    Tcl_Obj *listPtr;

    listPtr = Tcl_NewListObj(0, NULL);
    Tcl_MutexLock(&threadMutex);
    for (tsdPtr = threadList ; tsdPtr ; tsdPtr = tsdPtr->nextPtr) {
	Tcl_ListObjAppendElement(interp, listPtr,
		Tcl_NewLongObj((long)tsdPtr->threadId));
    }
    Tcl_MutexUnlock(&threadMutex);
    Tcl_SetObjResult(interp, listPtr);
    return TCL_OK;
}


/*
 *------------------------------------------------------------------------
 *
 * Thread_Send --
 *
 *    Send a script to another thread.
 *
 * Results:
 *    A standard Tcl result.
 *
 * Side effects:
 *    None.
 *
 *------------------------------------------------------------------------
 */
int
Thread_Send(interp, id, script, wait)
    Tcl_Interp *interp;		/* The current interpreter. */
    Tcl_ThreadId id;		/* Thread Id of other interpreter. */
    char *script;		/* The script to evaluate. */
    int wait;			/* If 1, we block for the result. */
{
    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
    ThreadEvent *threadEventPtr;
    ThreadEventResult *resultPtr;
    int found, code;
    Tcl_ThreadId threadId = (Tcl_ThreadId) id;

    /* 
     * Verify the thread exists.
     */

    Tcl_MutexLock(&threadMutex);
    found = 0;
    for (tsdPtr = threadList ; tsdPtr ; tsdPtr = tsdPtr->nextPtr) {
	if (tsdPtr->threadId == threadId) {
	    found = 1;
	    break;
	}
    }
    if (!found) {
	Tcl_MutexUnlock(&threadMutex);
	Tcl_AppendResult(interp, "invalid thread id", NULL);
	return TCL_ERROR;
    }

    /*
     * Short circut sends to ourself.  Ought to do something with -async,
     * like run in an idle handler.
     */

    if (threadId == Tcl_GetCurrentThread()) {
        Tcl_MutexUnlock(&threadMutex);
	return Tcl_GlobalEval(interp, script);
    }

    /* 
     * Create the event for its event queue.
     */

    threadEventPtr = (ThreadEvent *) ckalloc(sizeof(ThreadEvent));
    threadEventPtr->script = ckalloc(strlen(script) + 1);
    strcpy(threadEventPtr->script, script);
    if (!wait) {
	resultPtr = threadEventPtr->resultPtr = NULL;
    } else {
	resultPtr = (ThreadEventResult *) ckalloc(sizeof(ThreadEventResult));
	threadEventPtr->resultPtr = resultPtr;

	/*
	 * Initialize the result fields.
	 */

	resultPtr->done = NULL;
	resultPtr->code = 0;
	resultPtr->result = NULL;
	resultPtr->errorInfo = NULL;
	resultPtr->errorCode = NULL;

	/* 
	 * Maintain the cleanup list.
	 */

	resultPtr->srcThreadId = Tcl_GetCurrentThread();
	resultPtr->dstThreadId = threadId;
	resultPtr->eventPtr = threadEventPtr;
	resultPtr->nextPtr = resultList;
	if (resultList) {
	    resultList->prevPtr = resultPtr;
	}
	resultPtr->prevPtr = NULL;
	resultList = resultPtr;
    }

    /*
     * Queue the event and poke the other thread's notifier.
     */

    threadEventPtr->event.proc = ThreadEventProc;
    Tcl_ThreadQueueEvent(threadId, (Tcl_Event *)threadEventPtr, 
	    TCL_QUEUE_TAIL);
    Tcl_ThreadAlert(threadId);

    if (!wait) {
	Tcl_MutexUnlock(&threadMutex);
	return TCL_OK;
    }

    /* 
     * Block on the results and then get them.
     */

    Tcl_ResetResult(interp);
    while (resultPtr->result == NULL) {
        Tcl_ConditionWait(&resultPtr->done, &threadMutex, NULL);
    }

    /*
     * Unlink result from the result list.
     */

    if (resultPtr->prevPtr) {
	resultPtr->prevPtr->nextPtr = resultPtr->nextPtr;
    } else {
	resultList = resultPtr->nextPtr;
    }
    if (resultPtr->nextPtr) {
	resultPtr->nextPtr->prevPtr = resultPtr->prevPtr;
    }
    resultPtr->eventPtr = NULL;
    resultPtr->nextPtr = NULL;
    resultPtr->prevPtr = NULL;

    Tcl_MutexUnlock(&threadMutex);

    if (resultPtr->code != TCL_OK) {
	if (resultPtr->errorCode) {
	    Tcl_SetErrorCode(interp, resultPtr->errorCode, NULL);
	    ckfree(resultPtr->errorCode);
	}
	if (resultPtr->errorInfo) {
	    Tcl_AddErrorInfo(interp, resultPtr->errorInfo);
	    ckfree(resultPtr->errorInfo);
	}
    }
    Tcl_SetResult(interp, resultPtr->result, TCL_DYNAMIC);
    TclFinalizeCondition(&resultPtr->done);
    code = resultPtr->code;

    ckfree((char *) resultPtr);

    return code;
}


/*
 *------------------------------------------------------------------------
 *
 * ThreadEventProc --
 *
 *    Handle the event in the target thread.
 *
 * Results:
 *    Returns 1 to indicate that the event was processed.
 *
 * Side effects:
 *    Fills out the ThreadEventResult struct.
 *
 *------------------------------------------------------------------------
 */
int
ThreadEventProc(evPtr, mask)
    Tcl_Event *evPtr;		/* Really ThreadEvent */
    int mask;
{
    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
    ThreadEvent *threadEventPtr = (ThreadEvent *)evPtr;
    ThreadEventResult *resultPtr = threadEventPtr->resultPtr;
    Tcl_Interp *interp = tsdPtr->interp;
    int code;
    char *result, *errorCode, *errorInfo;

    if (interp == NULL) {
	code = TCL_ERROR;
	result = "no target interp!";
	errorCode = "THREAD";
	errorInfo = "";
    } else {
	Tcl_Preserve((ClientData) interp);
	Tcl_ResetResult(interp);
	Tcl_CreateThreadExitHandler(ThreadFreeProc,
		(ClientData) threadEventPtr->script);
	code = Tcl_GlobalEval(interp, threadEventPtr->script);
	Tcl_DeleteThreadExitHandler(ThreadFreeProc,
		(ClientData) threadEventPtr->script);
	result = Tcl_GetStringResult(interp);
	if (code != TCL_OK) {
	    errorCode = Tcl_GetVar(interp, "errorCode", TCL_GLOBAL_ONLY);
	    errorInfo = Tcl_GetVar(interp, "errorInfo", TCL_GLOBAL_ONLY);
	} else {
	    errorCode = errorInfo = NULL;
	}
    }
    ckfree(threadEventPtr->script);
    if (resultPtr) {
	Tcl_MutexLock(&threadMutex);
	resultPtr->code = code;
	resultPtr->result = ckalloc(strlen(result) + 1);
	strcpy(resultPtr->result, result);
	if (errorCode != NULL) {
	    resultPtr->errorCode = ckalloc(strlen(errorCode) + 1);
	    strcpy(resultPtr->errorCode, errorCode);
	}
	if (errorInfo != NULL) {
	    resultPtr->errorInfo = ckalloc(strlen(errorInfo) + 1);
	    strcpy(resultPtr->errorInfo, errorInfo);
	}
	Tcl_ConditionNotify(&resultPtr->done);
	Tcl_MutexUnlock(&threadMutex);
    }
    if (interp != NULL) {
	Tcl_Release((ClientData) interp);
    }
    return 1;
}

/*
 *------------------------------------------------------------------------
 *
 * ThreadFreeProc --
 *
 *    This is called from when we are exiting and memory needs
 *    to be freed.
 *
 * Results:
 *    None.
 *
 * Side effects:
 *	Clears up mem specified in ClientData
 *
 *------------------------------------------------------------------------
 */
     /* ARGSUSED */
void
ThreadFreeProc(clientData)
    ClientData clientData;
{
    if (clientData) {
	ckfree((char *) clientData);
    }
}

/*
 *------------------------------------------------------------------------
 *
 * ThreadDeleteEvent --
 *
 *    This is called from the ThreadExitProc to delete memory related
 *    to events that we put on the queue.
 *
 * Results:
 *    1 it was our event and we want it removed, 0 otherwise.
 *
 * Side effects:
 *	It cleans up our events in the event queue for this thread.
 *
 *------------------------------------------------------------------------
 */
     /* ARGSUSED */
int
ThreadDeleteEvent(eventPtr, clientData)
    Tcl_Event *eventPtr;		/* Really ThreadEvent */
    ClientData clientData;		/* dummy */
{
    if (eventPtr->proc == ThreadEventProc) {
	ckfree((char *) ((ThreadEvent *) eventPtr)->script);
	return 1;
    }
    /*
     * If it was NULL, we were in the middle of servicing the event
     * and it should be removed
     */
    return (eventPtr->proc == NULL);
}

/*
 *------------------------------------------------------------------------
 *
 * ThreadExitProc --
 *
 *    This is called when the thread exits.  
 *
 * Results:
 *    None.
 *
 * Side effects:
 *	It unblocks anyone that is waiting on a send to this thread.
 *	It cleans up any events in the event queue for this thread.
 *
 *------------------------------------------------------------------------
 */
     /* ARGSUSED */
void
ThreadExitProc(clientData)
    ClientData clientData;
{
    char *threadEvalScript = (char *) clientData;
    ThreadEventResult *resultPtr, *nextPtr;
    Tcl_ThreadId self = Tcl_GetCurrentThread();

    Tcl_MutexLock(&threadMutex);

    if (threadEvalScript) {
	ckfree((char *) threadEvalScript);
	threadEvalScript = NULL;
    }
    Tcl_DeleteEvents((Tcl_EventDeleteProc *)ThreadDeleteEvent, NULL);

    for (resultPtr = resultList ; resultPtr ; resultPtr = nextPtr) {
	nextPtr = resultPtr->nextPtr;
	if (resultPtr->srcThreadId == self) {
	    /*
	     * We are going away.  By freeing up the result we signal
	     * to the other thread we don't care about the result.
	     */
	    if (resultPtr->prevPtr) {
		resultPtr->prevPtr->nextPtr = resultPtr->nextPtr;
	    } else {
		resultList = resultPtr->nextPtr;
	    }
	    if (resultPtr->nextPtr) {
		resultPtr->nextPtr->prevPtr = resultPtr->prevPtr;
	    }
	    resultPtr->nextPtr = resultPtr->prevPtr = 0;
	    resultPtr->eventPtr->resultPtr = NULL;
	    ckfree((char *)resultPtr);
	} else if (resultPtr->dstThreadId == self) {
	    /*
	     * Dang.  The target is going away.  Unblock the caller.
	     * The result string must be dynamically allocated because
	     * the main thread is going to call free on it.
	     */

	    char *msg = "target thread died";
	    resultPtr->result = ckalloc(strlen(msg)+1);
	    strcpy(resultPtr->result, msg);
	    resultPtr->code = TCL_ERROR;
	    Tcl_ConditionNotify(&resultPtr->done);
	}
    }
    Tcl_MutexUnlock(&threadMutex);
}

Added tests/thread.test. 











































































































































































































































































































































































































































































































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# Commands covered:  thread
#
# This file contains a collection of tests for one or more of the Tcl
# built-in commands.  Sourcing this file into Tcl runs the tests and
# generates output for errors.  No output means no errors were found.
#
# Copyright (c) 1996 Sun Microsystems, Inc.
# Copyright (c) 1998-2000 by Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: thread.test,v 1.1.1.1 2000/01/19 22:57:24 welch Exp $

package require tcltest
namespace import ::tcltest::*

package require Thread 2.0

thread errorproc ThreadError

proc ThreadError {id info} {
    global threadError
    set threadError $info
}

proc ThreadNullError {id info} {
    # ignore
}

proc ThreadReap {} {
    thread errorproc ThreadNullError
    while {[llength [thread names]] > 1} {
	foreach tid [thread names] {
	    if {$tid != $::tcltest::mainThread} {
		catch {thread send -async $tid {thread exit}}
	    }
	}
	## Enter a bit of sleep to give the threads enough breathing
	## room to kill themselves off, otherwise the end up with a
	## massive queue of repeated events
	after 1
    }
    thread errorproc ThreadError
    return [llength [thread names]]
}

test thread-1.1 {ThreadObjCmd: no args} {
    list [catch {thread} msg] $msg
} {1 {wrong # args: should be "thread option ?args?"}}

test thread-1.2 {ThreadObjCmd: bad option} {
    list [catch {thread foo} msg] $msg
} {1 {bad option "foo": must be create, exit, id, names, send, wait, or errorproc}}

test thread-1.3 {ThreadObjCmd: initial thread list} {
    list [ThreadReap] [llength [thread names]]
} {1 1}

test thread-1.4 {ThreadObjCmd: thread create } {
    ThreadReap
    set serverthread [thread create]
    update
    set numthreads [llength [thread names]]
    ThreadReap
    set numthreads
} {2}

test thread-1.5 {ThreadObjCmd: thread create one shot} {
    ThreadReap
    thread create {set x 5}
    foreach try {0 1 2 4 5 6} {
	# Try various ways to yeild
	update
	after 10
	set l [llength [thread names]]
	if {$l == 1} {
	    break
	}
    }
    ThreadReap
    set l
} {1}

test thread-1.6 {ThreadObjCmd: thread exit} {
    ThreadReap
    thread create {thread exit}
    update
    after 10
    set result [llength [thread names]]
    ThreadReap
    set result
} {1}

test thread-1.7 {ThreadObjCmd: thread id args} {
    set x [catch {thread id x} msg]
    list $x $msg
} {1 {wrong # args: should be "thread id"}}

test thread-1.8 {ThreadObjCmd: thread id} {
    string compare [thread id] $::tcltest::mainThread
} {0}

test thread-1.9 {ThreadObjCmd: thread names args} {
    set x [catch {thread names x} msg]
    list $x $msg
} {1 {wrong # args: should be "thread names"}}

test thread-1.10 {ThreadObjCmd: thread id} {
    ThreadReap
    string compare [thread names] $::tcltest::mainThread
} {0}

test thread-1.11 {ThreadObjCmd: send args} {
    set x [catch {thread send} msg]
    list $x $msg
} {1 {wrong # args: should be "thread send ?-async? id script"}}

test thread-1.12 {ThreadObjCmd: send nonint} {
    set x [catch {thread send abc command} msg]
    list $x $msg
} {1 {expected integer but got "abc"}}

test thread-1.13 {ThreadObjCmd: send args} {
    ThreadReap
    set serverthread [thread create]
    set five [thread send $serverthread {set x 5}]
    ThreadReap
    set five
} 5

test thread-1.14 {ThreadObjCmd: send bad id} {
    set tid [expr $::tcltest::mainThread + 10]
    set x [catch {thread send $tid {set x 5}} msg]
    list $x $msg
} {1 {invalid thread id}}

test thread-1.15 {ThreadObjCmd: wait} {
    ThreadReap
    set serverthread [thread create {set z 5 ; thread wait}]
    set five [thread send $serverthread {set z}]
    ThreadReap
    set five
} 5

test thread-1.16 {ThreadObjCmd: errorproc args} {
    set x [catch {thread errorproc foo bar} msg]
    list $x $msg
} {1 {wrong # args: should be "thread errorproc proc"}}

test thread-1.17 {ThreadObjCmd: errorproc change} {
    thread errorproc foo
    thread errorproc ThreadError
} {}

# The tests above also cover:
# TclCreateThread, except when pthread_create fails
# NewThread, safe and regular
# ThreadErrorProc, except for printing to standard error

test thread-2.1 {ListUpdateInner and ListRemove} {
    ThreadReap
    catch {unset tid}
    foreach t {0 1 2} {
	upvar #0 t$t tid
	set tid [thread create]
    }
    ThreadReap
} 1

test thread-3.1 {Thread_List} {
    ThreadReap
    catch {unset tid}
    set len [llength [thread names]]
    set l1  {}
    foreach t {0 1 2} {
	lappend l1 [thread create]
    }
    set l2 [thread names]
    list $l1 $l2
    set c [string compare \
	    [lsort -integer [concat $::tcltest::mainThread $l1]] \
	    [lsort -integer $l2]]
    ThreadReap
    list $len $c
} {1 0}

test thread-4.1 {Thread_Send to self} {
    catch {unset x}
    thread send [thread id] {
	set x 4
    }
    set x
} {4}

test thread-4.2 {Thread_Send -async} {
    ThreadReap
    set len [llength [thread names]]
    set serverthread [thread create]
    thread send -async $serverthread {
	after 1000
	thread exit
    }
    set two [llength [thread names]]
    after 1500 {set done 1}
    vwait done
    ThreadReap
    list $len [llength [thread names]] $two
} {1 1 2}

test thread-4.3 {Thread_Send preserve errorInfo} {
    ThreadReap
    set len [llength [thread names]]
    set serverthread [thread create]
    set x [catch {thread send $serverthread {set undef}} msg]
    ThreadReap
    list $len $x $msg $errorInfo
} {1 1 {can't read "undef": no such variable} {can't read "undef": no such variable
    while executing
"set undef"
    invoked from within
"thread send $serverthread {set undef}"}}

test thread-4.4 {Thread_Send preserve code} {
    ThreadReap
    set len [llength [thread names]]
    set serverthread [thread create]
    set x [catch {thread send $serverthread {break}} msg]
    ThreadReap
    list $len $x $msg $errorInfo
} {1 3 {} {}}

test thread-4.5 {Thread_Send preserve errorCode} {
    ThreadReap
    set ::tcltest::mainThread [thread names]
    set serverthread [thread create]
    set x [catch {thread send $serverthread {error ERR INFO CODE}} msg]
    ThreadReap
    list $x $msg $errorCode
} {1 ERR CODE}

# cleanup
::tcltest::cleanupTests
return

Added unix/Makefile.in. 







































































































































































































































































































































































































































































































































































































































































































































































































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# Makefile.in --
#
#	This file is a Makefile for the Thread Tcl Extension.
#
#	This is based on the Sample TEA Extension.  If it has the name
#	"Makefile.in" then it is a template for a Makefile;  to generate the
#	actual Makefile, run "./configure", which is a configuration script
#	generated by the "autoconf" program (constructs like "@foo@" will get
#	replaced in the actual Makefile.
#
# Copyright (c) 1999 Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: Makefile.in,v 1.1.1.1 2000/01/19 22:57:24 welch Exp $

#========================================================================
# Edit the following few lines when writing a new extension
#========================================================================

#========================================================================
# Change the name of the variable "thread_LIB_FILE" to match the one
# used in the configure script.  This is the parameterized name of the
# library that we are building.
#========================================================================

lib_BINARIES=$(thread_LIB_FILE)
BINARIES=$(lib_BINARIES)

#========================================================================
# Enumerate the names of the source files included in this package.
# This will be used when a dist target is added to the Makefile.
#========================================================================

thread_SOURCES = threadCmd.c
SOURCES = $(thread_SOURCES)

#========================================================================
# Enumerate the names of the object files included in this package.
# These objects are created and linked into the final library.  In
# most cases these object files will correspond to the source files
# above.
#
#========================================================================

thread_OBJECTS =  threadCmd.$(OBJEXT)
OBJECTS = $(thread_OBJECTS)

#========================================================================
# The substitution of "thread_LIB_FILE" into the variable name below
# allows us to refer to the objects for the library without knowing the name
# of the library in advance.  It also lets us use the "$@" variable in
# the rule for building the library, so we can refer to both the list of 
# objects and the library itself in a platform-independent manner.
#========================================================================

thread_LIB_FILE = @thread_LIB_FILE@
$(thread_LIB_FILE)_OBJECTS = $(thread_OBJECTS)

#========================================================================
# This is a list of header files to be installed
#========================================================================

GENERIC_HDRS= 
#	$(srcdir)/../generic/thread.h

#========================================================================
# Add additional lines to handle any additional AC_SUBST cases that
# have been added to the configure script.
#========================================================================

SAMPLE_NEW_VAR=@SAMPLE_NEW_VAR@

#========================================================================
# Nothing of the variables below this line need to be changed.  Please
# check the TARGETS section below to make sure the make targets are
# correct.
#========================================================================

SHELL = @SHELL@

srcdir = @srcdir@
top_srcdir = @top_srcdir@
prefix = @prefix@
exec_prefix = @exec_prefix@

bindir = @bindir@
sbindir = @sbindir@
libexecdir = @libexecdir@
datadir = @datadir@
sysconfdir = @sysconfdir@
sharedstatedir = @sharedstatedir@
localstatedir = @localstatedir@
libdir = @libdir@
infodir = @infodir@
mandir = @mandir@
includedir = @includedir@
oldincludedir = /usr/include

DESTDIR =

pkgdatadir = $(datadir)/@PACKAGE@@VERSION@
pkglibdir = $(libdir)/@PACKAGE@@VERSION@
pkgincludedir = $(includedir)/@PACKAGE@@VERSION@

top_builddir = .

INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_DATA = @INSTALL_DATA@
INSTALL_SCRIPT = @INSTALL_SCRIPT@
INSTALL_STRIP_FLAG =
transform = @program_transform_name@

NORMAL_INSTALL = :
PRE_INSTALL = :
POST_INSTALL = :
NORMAL_UNINSTALL = :
PRE_UNINSTALL = :
POST_UNINSTALL = :

PACKAGE = @PACKAGE@
VERSION = @VERSION@
CC = @CC@
CFLAGS_DEBUG = @CFLAGS_DEBUG@
CFLAGS_DEFAULT = @CFLAGS_DEFAULT@
CFLAGS_OPTIMIZE = @CFLAGS_OPTIMIZE@
CLEANFILES = @CLEANFILES@
EXEEXT = @EXEEXT@
LDFLAGS_DEBUG = @LDFLAGS_DEBUG@
LDFLAGS_DEFAULT = @LDFLAGS_DEFAULT@
LDFLAGS_OPTIMIZE = @LDFLAGS_OPTIMIZE@
MAKE_LIB = @MAKE_LIB@
MAKE_SHARED_LIB = @MAKE_SHARED_LIB@
MAKE_STATIC_LIB = @MAKE_STATIC_LIB@
OBJEXT = @OBJEXT@
RANLIB = @RANLIB@
SHLIB_CFLAGS = @SHLIB_CFLAGS@
SHLIB_LD = @SHLIB_LD@
SHLIB_LDFLAGS = @SHLIB_LDFLAGS@
SHLIB_LD_LIBS = @SHLIB_LD_LIBS@
STLIB_LD = @STLIB_LD@
TCL_BIN_DIR = @TCL_BIN_DIR@
TCL_DEFS = @TCL_DEFS@
TCL_EXTRA_CFLAGS = @TCL_EXTRA_CFLAGS@
TCL_LD_FLAGS = @TCL_LD_FLAGS@
TCL_LIBS = @TCL_LIBS@
TCL_SHLIB_LD_LIBS = @TCL_SHLIB_LD_LIBS@
TCL_SRC_DIR = @TCL_SRC_DIR@
TCL_DBGX = @TCL_DBGX@
TCL_STUB_LIB_FILE = @TCL_STUB_LIB_FILE@
TCL_STUB_LIB_SPEC = @TCL_STUB_LIB_SPEC@
TCL_TOOL_DIR_NATIVE = @TCL_TOOL_DIR_NATIVE@
TCL_TOP_DIR_NATIVE = @TCL_TOP_DIR_NATIVE@
TCL_UNIX_DIR_NATIVE = @TCL_UNIX_DIR_NATIVE@
TCL_WIN_DIR_NATIVE = @TCL_WIN_DIR_NATIVE@
INCLUDE_DIR_NATIVE = @INCLUDE_DIR_NATIVE@
TCL_BMAP_DIR_NATIVE = @TCL_BMAP_DIR_NATIVE@
TCL_PLATFORM_DIR_NATIVE = @TCL_PLATFORM_DIR_NATIVE@
TCL_GENERIC_DIR_NATIVE = @TCL_GENERIC_DIR_NATIVE@
TCLSH_PROG = @TCLSH_PROG@

AUTOCONF = autoconf

LDFLAGS = $(LDFLAGS_DEFAULT)

INCLUDES = @TCL_INCLUDES@

EXTRA_CFLAGS = $(TCL_DEFS) $(PROTO_FLAGS) $(SECURITY_FLAGS) $(MEM_DEBUG_FLAGS) $(KEYSYM_FLAGS) $(NO_DEPRECATED_FLAGS)

DEFS = @DEFS@ $(EXTRA_CFLAGS)

ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
CONFIG_CLEAN_FILES = mkIndex.tcl

CPPFLAGS = @CPPFLAGS@
LIBS = @LIBS@
AR = ar
CFLAGS = @CFLAGS@
COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
CCLD = $(CC)
LINK = $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@

#========================================================================
# Start of user-definable TARGETS section
#========================================================================

#========================================================================
# TEA TARGETS.  Please note that the "libraries:" target refers to platform
# independent files, and the "binaries:" target inclues executable programs and
# platform-dependent libraries.  Modify these targets so that they install
# the various pieces of your package.  The make and install rules
# for the BINARIES that you specified above have already been done.
#========================================================================

all: binaries libraries doc

#========================================================================
# The binaries target builds executable programs, Windows .dll's, unix
# shared/static libraries, and any other platform-dependent files.
# The list of targets to build for "binaries:" is specified at the top
# of the Makefile, in the "BINARIES" variable.
#========================================================================

binaries: $(BINARIES)

libraries:

doc:

X-doc:
	@echo "If you have documentation to create, place the commands to"
	@echo "build the docs in the 'doc:' target.  For example:"
	@echo ""
	@echo "xml2nroff exampleA.xml > exampleA.n"
	@echo "xml2html exampleA.xml > exampleA.html"

install: all install-binaries install-libraries install-doc

install-binaries: binaries install-lib-binaries install-bin-binaries
	$(TCLSH_PROG) mkIndex.tcl $(thread_LIB_FILE)

#========================================================================
# This rule installs platform-independent files, such as header files.
#========================================================================

install-libraries: libraries
	$(mkinstalldirs) $(includedir)
	@echo "Installing header files in $(includedir)"
	@for i in $(GENERIC_HDRS) ; do \
	    echo "Installing $$i" ; \
	    $(INSTALL_DATA) $$i $(includedir) ; \
	done;

#========================================================================
# Install documentation.  Unix manpages should go in the $(mandir)
# directory.
#========================================================================

install-doc: doc
	$(mkinstalldirs) $(mandir)/man1
	$(mkinstalldirs) $(mandir)/man3
	$(mkinstalldirs) $(mandir)/mann
	@echo "Installing documentation in $(mandir)"
	@for i in $(srcdir)/*.n; \
	    do \
	    echo "Installing $$i"; \
	    rm -f $(mandir)/mann/$$i; \
	    $(INSTALL_DATA) $$i $(mandir)/mann ; \
	    done

test:
	$(TCLSH_PROG) $(srcdir)/../tests/thread.test

depend:

#========================================================================
# Enumerate the names of the object files included in this package.
# These objects are created and linked into the final library.  In
# most cases these object files will correspond to the source files
# above.
#
# $(thread_LIB_FILE) should be listed as part of the BINARIES variable
# at the top of the Makefile.  That will ensure that this target is built
# when you run "make binaries".
#
# You shouldn't need to modify this target, except to change the package
# name from "thread" to your package's name.
#========================================================================

$(thread_LIB_FILE): $(thread_OBJECTS)
	-rm -f $(thread_LIB_FILE)
	@MAKE_LIB@
	$(RANLIB) $(thread_LIB_FILE)

#========================================================================
# We need to enumerate the list of .c to .o lines here.
# Unfortunately, there does not seem to be any other way to do this
# in a Makefile-independent way.  We can't use VPATH because it picks up
# object files that may be located in the source directory.
#
# In the following lines, $(srcdir) refers to the toplevel directory
# containing your extension.  If your sources are in a subdirectory,
# you will have to modify the paths to reflect this:
#========================================================================

threadCmd.$(OBJEXT): $(srcdir)/../generic/threadCmd.c
	$(COMPILE) -c `@CYGPATH@ $(srcdir)/../generic/threadCmd.c` -o $@

#========================================================================
# End of user-definable section
#========================================================================

#========================================================================
# Don't modify the file to clean here.  Instead, set the "CLEANFILES"
# variable in configure.in
#========================================================================

clean:  
	-test -z "$(BINARIES)" || rm -f $(BINARIES)
	-rm -f *.o core *.core
	-rm -f *.$(OBJEXT)
	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)

distclean: clean
	-rm -f *.tab.c
	-rm -f Makefile $(CONFIG_CLEAN_FILES)
	-rm -f config.cache config.log stamp-h stamp-h[0-9]*
	-rm -f config.status

#========================================================================
# Install binary object libraries.  On Windows this includes both .dll and
# .lib files.  Because the .lib files are not explicitly listed anywhere,
# we need to deduce their existence from the .dll file of the same name.
# Additionally, the .dll files go into the bin directory, but the .lib
# files go into the lib directory.  On Unix platforms, all library files
# go into the lib directory.  In addition, this will generate the pkgIndex.tcl
# file in the install location (assuming it can find a usable tclsh8.2 shell)
#
# You should not have to modify this target.
#========================================================================

install-lib-binaries: installdirs
	@list='$(lib_BINARIES)'; for p in $$list; do \
	  if test -f $$p; then \
	    ext=`echo $$p|sed -e "s/.*\.//"`; \
	    if test "x$$ext" = "xdll"; then \
	        echo " $(INSTALL_DATA) $$p $(DESTDIR)$(bindir)/$$p"; \
	        $(INSTALL_DATA) $$p $(DESTDIR)$(bindir)/$$p; \
		lib=`basename $$p|sed -e 's/.[^.]*$$//'`.lib; \
		if test -f $$lib; then \
		    echo " $(INSTALL_DATA) $$lib $(DESTDIR)$(libdir)/$$lib"; \
	            $(INSTALL_DATA) $$lib $(DESTDIR)$(libdir)/$$lib; \
		fi; \
	    else \
		echo " $(INSTALL_DATA) $$p $(DESTDIR)$(libdir)/$$p"; \
	        $(INSTALL_DATA) $$p $(DESTDIR)$(libdir)/$$p; \
	    fi; \
	  else :; fi; \
	done
	@list='$(lib_BINARIES)'; for p in $$list; do \
	  if test -f $$p; then \
	    echo " $(RANLIB) $(DESTDIR)$(bindir)/$$p"; \
	    $(RANLIB) $(DESTDIR)$(bindir)/$$p; \
	  else :; fi; \
	done

#========================================================================
# Install binary executables (e.g. .exe files)
#
# You should not have to modify this target.
#========================================================================

install-bin-binaries: installdirs
	@list='$(bin_BINARIES)'; for p in $$list; do \
	  if test -f $$p; then \
	    echo " $(INSTALL_DATA) $$p $(DESTDIR)$(bindir)/$$p"; \
	    $(INSTALL_DATA) $$p $(DESTDIR)$(bindir)/$$p; \
	  else :; fi; \
	done

.SUFFIXES: .c .o .obj

Makefile: $(srcdir)/Makefile.in  $(top_builddir)/config.status
	cd $(top_builddir) \
	  && CONFIG_FILES=$@ CONFIG_HEADERS= $(SHELL) ./config.status

uninstall-binaries:
	@$(NORMAL_UNINSTALL)
	list='$(BINARIES)'; for p in $$list; do \
	  rm -f $(DESTDIR)$(libdir)/$$p; \
	done

installdirs:
	$(mkinstalldirs)  $(DESTDIR)$(libdir)
	$(mkinstalldirs)  $(DESTDIR)$(bindir)
	$(mkinstalldirs)  $(DESTDIR)$(pkglibdir)

.PHONY: all binaries clean depend distclean doc install installdirs \
libraries test

# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:

Added unix/configure. 























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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#! /bin/sh

# Guess values for system-dependent variables and create Makefiles.
# Generated automatically using autoconf version 2.13 
# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
#
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.

# Defaults:
ac_help=
ac_default_prefix=/usr/local
# Any additions from configure.in:
ac_help="$ac_help
  --enable-gcc            allow use of gcc if available [--disable-gcc]"
ac_help="$ac_help
  --with-tcl              directory containing tcl configuration (tclConfig.sh)"
ac_help="$ac_help
 --with-tclinclude      directory containing the public Tcl header files."
ac_help="$ac_help
  --enable-threads        build with threads"
ac_help="$ac_help
  --enable-shared         build and link with shared libraries [--enable-shared]"
ac_help="$ac_help
  --enable-symbols        build with debugging symbols [--disable-symbols]"

# Initialize some variables set by options.
# The variables have the same names as the options, with
# dashes changed to underlines.
build=NONE
cache_file=./config.cache
exec_prefix=NONE
host=NONE
no_create=
nonopt=NONE
no_recursion=
prefix=NONE
program_prefix=NONE
program_suffix=NONE
program_transform_name=s,x,x,
silent=
site=
srcdir=
target=NONE
verbose=
x_includes=NONE
x_libraries=NONE
bindir='${exec_prefix}/bin'
sbindir='${exec_prefix}/sbin'
libexecdir='${exec_prefix}/libexec'
datadir='${prefix}/share'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
libdir='${exec_prefix}/lib'
includedir='${prefix}/include'
oldincludedir='/usr/include'
infodir='${prefix}/info'
mandir='${prefix}/man'

# Initialize some other variables.
subdirs=
MFLAGS= MAKEFLAGS=
SHELL=${CONFIG_SHELL-/bin/sh}
# Maximum number of lines to put in a shell here document.
ac_max_here_lines=12

ac_prev=
for ac_option
do

  # If the previous option needs an argument, assign it.
  if test -n "$ac_prev"; then
    eval "$ac_prev=\$ac_option"
    ac_prev=
    continue
  fi

  case "$ac_option" in
  -*=*) ac_optarg=`echo "$ac_option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
  *) ac_optarg= ;;
  esac

  # Accept the important Cygnus configure options, so we can diagnose typos.

  case "$ac_option" in

  -bindir | --bindir | --bindi | --bind | --bin | --bi)
    ac_prev=bindir ;;
  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
    bindir="$ac_optarg" ;;

  -build | --build | --buil | --bui | --bu)
    ac_prev=build ;;
  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
    build="$ac_optarg" ;;

  -cache-file | --cache-file | --cache-fil | --cache-fi \
  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
    ac_prev=cache_file ;;
  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
    cache_file="$ac_optarg" ;;

  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
    ac_prev=datadir ;;
  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
  | --da=*)
    datadir="$ac_optarg" ;;

  -disable-* | --disable-*)
    ac_feature=`echo $ac_option|sed -e 's/-*disable-//'`
    # Reject names that are not valid shell variable names.
    if test -n "`echo $ac_feature| sed 's/[-a-zA-Z0-9_]//g'`"; then
      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
    fi
    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
    eval "enable_${ac_feature}=no" ;;

  -enable-* | --enable-*)
    ac_feature=`echo $ac_option|sed -e 's/-*enable-//' -e 's/=.*//'`
    # Reject names that are not valid shell variable names.
    if test -n "`echo $ac_feature| sed 's/[-_a-zA-Z0-9]//g'`"; then
      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
    fi
    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
    case "$ac_option" in
      *=*) ;;
      *) ac_optarg=yes ;;
    esac
    eval "enable_${ac_feature}='$ac_optarg'" ;;

  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
  | --exec | --exe | --ex)
    ac_prev=exec_prefix ;;
  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
  | --exec=* | --exe=* | --ex=*)
    exec_prefix="$ac_optarg" ;;

  -gas | --gas | --ga | --g)
    # Obsolete; use --with-gas.
    with_gas=yes ;;

  -help | --help | --hel | --he)
    # Omit some internal or obsolete options to make the list less imposing.
    # This message is too long to be a string in the A/UX 3.1 sh.
    cat << EOF
Usage: configure [options] [host]
Options: [defaults in brackets after descriptions]
Configuration:
  --cache-file=FILE       cache test results in FILE
  --help                  print this message
  --no-create             do not create output files
  --quiet, --silent       do not print \`checking...' messages
  --version               print the version of autoconf that created configure
Directory and file names:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [same as prefix]
  --bindir=DIR            user executables in DIR [EPREFIX/bin]
  --sbindir=DIR           system admin executables in DIR [EPREFIX/sbin]
  --libexecdir=DIR        program executables in DIR [EPREFIX/libexec]
  --datadir=DIR           read-only architecture-independent data in DIR
                          [PREFIX/share]
  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
                          [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
  --includedir=DIR        C header files in DIR [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc in DIR [/usr/include]
  --infodir=DIR           info documentation in DIR [PREFIX/info]
  --mandir=DIR            man documentation in DIR [PREFIX/man]
  --srcdir=DIR            find the sources in DIR [configure dir or ..]
  --program-prefix=PREFIX prepend PREFIX to installed program names
  --program-suffix=SUFFIX append SUFFIX to installed program names
  --program-transform-name=PROGRAM
                          run sed PROGRAM on installed program names
EOF
    cat << EOF
Host type:
  --build=BUILD           configure for building on BUILD [BUILD=HOST]
  --host=HOST             configure for HOST [guessed]
  --target=TARGET         configure for TARGET [TARGET=HOST]
Features and packages:
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --x-includes=DIR        X include files are in DIR
  --x-libraries=DIR       X library files are in DIR
EOF
    if test -n "$ac_help"; then
      echo "--enable and --with options recognized:$ac_help"
    fi
    exit 0 ;;

  -host | --host | --hos | --ho)
    ac_prev=host ;;
  -host=* | --host=* | --hos=* | --ho=*)
    host="$ac_optarg" ;;

  -includedir | --includedir | --includedi | --included | --include \
  | --includ | --inclu | --incl | --inc)
    ac_prev=includedir ;;
  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
  | --includ=* | --inclu=* | --incl=* | --inc=*)
    includedir="$ac_optarg" ;;

  -infodir | --infodir | --infodi | --infod | --info | --inf)
    ac_prev=infodir ;;
  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
    infodir="$ac_optarg" ;;

  -libdir | --libdir | --libdi | --libd)
    ac_prev=libdir ;;
  -libdir=* | --libdir=* | --libdi=* | --libd=*)
    libdir="$ac_optarg" ;;

  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
  | --libexe | --libex | --libe)
    ac_prev=libexecdir ;;
  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
  | --libexe=* | --libex=* | --libe=*)
    libexecdir="$ac_optarg" ;;

  -localstatedir | --localstatedir | --localstatedi | --localstated \
  | --localstate | --localstat | --localsta | --localst \
  | --locals | --local | --loca | --loc | --lo)
    ac_prev=localstatedir ;;
  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
    localstatedir="$ac_optarg" ;;

  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
    ac_prev=mandir ;;
  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
    mandir="$ac_optarg" ;;

  -nfp | --nfp | --nf)
    # Obsolete; use --without-fp.
    with_fp=no ;;

  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
  | --no-cr | --no-c)
    no_create=yes ;;

  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
    no_recursion=yes ;;

  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
  | --oldin | --oldi | --old | --ol | --o)
    ac_prev=oldincludedir ;;
  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
    oldincludedir="$ac_optarg" ;;

  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
    ac_prev=prefix ;;
  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
    prefix="$ac_optarg" ;;

  -program-prefix | --program-prefix | --program-prefi | --program-pref \
  | --program-pre | --program-pr | --program-p)
    ac_prev=program_prefix ;;
  -program-prefix=* | --program-prefix=* | --program-prefi=* \
  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
    program_prefix="$ac_optarg" ;;

  -program-suffix | --program-suffix | --program-suffi | --program-suff \
  | --program-suf | --program-su | --program-s)
    ac_prev=program_suffix ;;
  -program-suffix=* | --program-suffix=* | --program-suffi=* \
  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
    program_suffix="$ac_optarg" ;;

  -program-transform-name | --program-transform-name \
  | --program-transform-nam | --program-transform-na \
  | --program-transform-n | --program-transform- \
  | --program-transform | --program-transfor \
  | --program-transfo | --program-transf \
  | --program-trans | --program-tran \
  | --progr-tra | --program-tr | --program-t)
    ac_prev=program_transform_name ;;
  -program-transform-name=* | --program-transform-name=* \
  | --program-transform-nam=* | --program-transform-na=* \
  | --program-transform-n=* | --program-transform-=* \
  | --program-transform=* | --program-transfor=* \
  | --program-transfo=* | --program-transf=* \
  | --program-trans=* | --program-tran=* \
  | --progr-tra=* | --program-tr=* | --program-t=*)
    program_transform_name="$ac_optarg" ;;

  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil)
    silent=yes ;;

  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
    ac_prev=sbindir ;;
  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
  | --sbi=* | --sb=*)
    sbindir="$ac_optarg" ;;

  -sharedstatedir | --sharedstatedir | --sharedstatedi \
  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
  | --sharedst | --shareds | --shared | --share | --shar \
  | --sha | --sh)
    ac_prev=sharedstatedir ;;
  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
  | --sha=* | --sh=*)
    sharedstatedir="$ac_optarg" ;;

  -site | --site | --sit)
    ac_prev=site ;;
  -site=* | --site=* | --sit=*)
    site="$ac_optarg" ;;

  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
    ac_prev=srcdir ;;
  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
    srcdir="$ac_optarg" ;;

  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
  | --syscon | --sysco | --sysc | --sys | --sy)
    ac_prev=sysconfdir ;;
  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
    sysconfdir="$ac_optarg" ;;

  -target | --target | --targe | --targ | --tar | --ta | --t)
    ac_prev=target ;;
  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
    target="$ac_optarg" ;;

  -v | -verbose | --verbose | --verbos | --verbo | --verb)
    verbose=yes ;;

  -version | --version | --versio | --versi | --vers)
    echo "configure generated by autoconf version 2.13"
    exit 0 ;;

  -with-* | --with-*)
    ac_package=`echo $ac_option|sed -e 's/-*with-//' -e 's/=.*//'`
    # Reject names that are not valid shell variable names.
    if test -n "`echo $ac_package| sed 's/[-_a-zA-Z0-9]//g'`"; then
      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
    fi
    ac_package=`echo $ac_package| sed 's/-/_/g'`
    case "$ac_option" in
      *=*) ;;
      *) ac_optarg=yes ;;
    esac
    eval "with_${ac_package}='$ac_optarg'" ;;

  -without-* | --without-*)
    ac_package=`echo $ac_option|sed -e 's/-*without-//'`
    # Reject names that are not valid shell variable names.
    if test -n "`echo $ac_package| sed 's/[-a-zA-Z0-9_]//g'`"; then
      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
    fi
    ac_package=`echo $ac_package| sed 's/-/_/g'`
    eval "with_${ac_package}=no" ;;

  --x)
    # Obsolete; use --with-x.
    with_x=yes ;;

  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
  | --x-incl | --x-inc | --x-in | --x-i)
    ac_prev=x_includes ;;
  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
    x_includes="$ac_optarg" ;;

  -x-libraries | --x-libraries | --x-librarie | --x-librari \
  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
    ac_prev=x_libraries ;;
  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
    x_libraries="$ac_optarg" ;;

  -*) { echo "configure: error: $ac_option: invalid option; use --help to show usage" 1>&2; exit 1; }
    ;;

  *)
    if test -n "`echo $ac_option| sed 's/[-a-z0-9.]//g'`"; then
      echo "configure: warning: $ac_option: invalid host type" 1>&2
    fi
    if test "x$nonopt" != xNONE; then
      { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; }
    fi
    nonopt="$ac_option"
    ;;

  esac
done

if test -n "$ac_prev"; then
  { echo "configure: error: missing argument to --`echo $ac_prev | sed 's/_/-/g'`" 1>&2; exit 1; }
fi

trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15

# File descriptor usage:
# 0 standard input
# 1 file creation
# 2 errors and warnings
# 3 some systems may open it to /dev/tty
# 4 used on the Kubota Titan
# 6 checking for... messages and results
# 5 compiler messages saved in config.log
if test "$silent" = yes; then
  exec 6>/dev/null
else
  exec 6>&1
fi
exec 5>./config.log

echo "\
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
" 1>&5

# Strip out --no-create and --no-recursion so they do not pile up.
# Also quote any args containing shell metacharacters.
ac_configure_args=
for ac_arg
do
  case "$ac_arg" in
  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
  | --no-cr | --no-c) ;;
  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
  ac_configure_args="$ac_configure_args '$ac_arg'" ;;
  *) ac_configure_args="$ac_configure_args $ac_arg" ;;
  esac
done

# NLS nuisances.
# Only set these to C if already set.  These must not be set unconditionally
# because not all systems understand e.g. LANG=C (notably SCO).
# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
# Non-C LC_CTYPE values break the ctype check.
if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi

# confdefs.h avoids OS command line length limits that DEFS can exceed.
rm -rf conftest* confdefs.h
# AIX cpp loses on an empty file, so make sure it contains at least a newline.
echo > confdefs.h

# A filename unique to this package, relative to the directory that
# configure is in, which we can look for to find out if srcdir is correct.
ac_unique_file=../generic/threadCmd.c

# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  ac_srcdir_defaulted=yes
  # Try the directory containing this script, then its parent.
  ac_prog=$0
  ac_confdir=`echo $ac_prog|sed 's%/[^/][^/]*$%%'`
  test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
  srcdir=$ac_confdir
  if test ! -r $srcdir/$ac_unique_file; then
    srcdir=..
  fi
else
  ac_srcdir_defaulted=no
fi
if test ! -r $srcdir/$ac_unique_file; then
  if test "$ac_srcdir_defaulted" = yes; then
    { echo "configure: error: can not find sources in $ac_confdir or .." 1>&2; exit 1; }
  else
    { echo "configure: error: can not find sources in $srcdir" 1>&2; exit 1; }
  fi
fi
srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`

# Prefer explicitly selected file to automatically selected ones.
if test -z "$CONFIG_SITE"; then
  if test "x$prefix" != xNONE; then
    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
  else
    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
  fi
fi
for ac_site_file in $CONFIG_SITE; do
  if test -r "$ac_site_file"; then
    echo "loading site script $ac_site_file"
    . "$ac_site_file"
  fi
done

if test -r "$cache_file"; then
  echo "loading cache $cache_file"
  . $cache_file
else
  echo "creating cache $cache_file"
  > $cache_file
fi

ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$CPP $CPPFLAGS'
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
cross_compiling=$ac_cv_prog_cc_cross

ac_exeext=
ac_objext=o
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  # Stardent Vistra SVR4 grep lacks -e, says [email protected].
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi



#--------------------------------------------------------------------
# __CHANGE__
# Set your package name and version numbers here.  The NODOT_VERSION is
# required for constructing the library name on systems that don't like
# dots in library names (Windows).  The VERSION variable is used on the
# other systems.
#--------------------------------------------------------------------

PACKAGE=thread

MAJOR_VERSION=2
MINOR_VERSION=0
PATCHLEVEL=

VERSION=${MAJOR_VERSION}.${MINOR_VERSION}${PATCHLEVEL}
NODOT_VERSION=${MAJOR_VERSION}${MINOR_VERSION}





#--------------------------------------------------------------------
# We put this here so that you can compile with -DVERSION="1.2" to
# encode the package version directly into the source files.
#--------------------------------------------------------------------

eval cat >> confdefs.h <<EOF
#define VERSION "${VERSION}"
EOF


#--------------------------------------------------------------------
# Check whether --enable-gcc or --disable-gcc was given.  Do this 
# before AC_CYGWIN is called so the compiler can 
# be fully tested by built-in autoconf tools.
# This macro also calls AC_PROG_CC to set the compiler if --enable-gcc
# was not used.
#--------------------------------------------------------------------


    # Check whether --enable-gcc or --disable-gcc was given.
if test "${enable_gcc+set}" = set; then
  enableval="$enable_gcc"
  ok=$enableval
else
  ok=no
fi

    if test "$ok" = "yes"; then
	CC=gcc
    else
	case "`uname -s`" in
	    *win32* | *WIN32* | *CYGWIN_NT*)
		CC=cl
	    ;;
	    *)
		CC=${CC-cc}
	    ;;
	esac
    fi
    # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:601: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
  ac_dummy="$PATH"
  for ac_dir in $ac_dummy; do
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$ac_word; then
      ac_cv_prog_CC="gcc"
      break
    fi
  done
  IFS="$ac_save_ifs"
fi
fi
CC="$ac_cv_prog_CC"
if test -n "$CC"; then
  echo "$ac_t""$CC" 1>&6
else
  echo "$ac_t""no" 1>&6
fi

if test -z "$CC"; then
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:631: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
  ac_prog_rejected=no
  ac_dummy="$PATH"
  for ac_dir in $ac_dummy; do
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$ac_word; then
      if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
        ac_prog_rejected=yes
	continue
      fi
      ac_cv_prog_CC="cc"
      break
    fi
  done
  IFS="$ac_save_ifs"
if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_CC
  shift
  if test $# -gt 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set CC to just the basename; use the full file name.
    shift
    set dummy "$ac_dir/$ac_word" "$@"
    shift
    ac_cv_prog_CC="$@"
  fi
fi
fi
fi
CC="$ac_cv_prog_CC"
if test -n "$CC"; then
  echo "$ac_t""$CC" 1>&6
else
  echo "$ac_t""no" 1>&6
fi

  if test -z "$CC"; then
    case "`uname -s`" in
    *win32* | *WIN32*)
      # Extract the first word of "cl", so it can be a program name with args.
set dummy cl; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:682: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
  ac_dummy="$PATH"
  for ac_dir in $ac_dummy; do
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$ac_word; then
      ac_cv_prog_CC="cl"
      break
    fi
  done
  IFS="$ac_save_ifs"
fi
fi
CC="$ac_cv_prog_CC"
if test -n "$CC"; then
  echo "$ac_t""$CC" 1>&6
else
  echo "$ac_t""no" 1>&6
fi
 ;;
    esac
  fi
  test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
fi

echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
echo "configure:714: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5

ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$CPP $CPPFLAGS'
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
cross_compiling=$ac_cv_prog_cc_cross

cat > conftest.$ac_ext << EOF

#line 725 "configure"
#include "confdefs.h"

main(){return(0);}
EOF
if { (eval echo configure:730: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  ac_cv_prog_cc_works=yes
  # If we can't run a trivial program, we are probably using a cross compiler.
  if (./conftest; exit) 2>/dev/null; then
    ac_cv_prog_cc_cross=no
  else
    ac_cv_prog_cc_cross=yes
  fi
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  ac_cv_prog_cc_works=no
fi
rm -fr conftest*
ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$CPP $CPPFLAGS'
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
cross_compiling=$ac_cv_prog_cc_cross

echo "$ac_t""$ac_cv_prog_cc_works" 1>&6
if test $ac_cv_prog_cc_works = no; then
  { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
fi
echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
echo "configure:756: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
cross_compiling=$ac_cv_prog_cc_cross

echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
echo "configure:761: checking whether we are using GNU C" >&5
if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.c <<EOF
#ifdef __GNUC__
  yes;
#endif
EOF
if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:770: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  ac_cv_prog_gcc=yes
else
  ac_cv_prog_gcc=no
fi
fi

echo "$ac_t""$ac_cv_prog_gcc" 1>&6

if test $ac_cv_prog_gcc = yes; then
  GCC=yes
else
  GCC=
fi

ac_test_CFLAGS="${CFLAGS+set}"
ac_save_CFLAGS="$CFLAGS"
CFLAGS=
echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
echo "configure:789: checking whether ${CC-cc} accepts -g" >&5
if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  echo 'void f(){}' > conftest.c
if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
  ac_cv_prog_cc_g=yes
else
  ac_cv_prog_cc_g=no
fi
rm -f conftest*

fi

echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
if test "$ac_test_CFLAGS" = set; then
  CFLAGS="$ac_save_CFLAGS"
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"
  fi
else
  if test "$GCC" = yes; then
    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi


ac_aux_dir=
for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
  if test -f $ac_dir/install-sh; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/install-sh -c"
    break
  elif test -f $ac_dir/install.sh; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/install.sh -c"
    break
  fi
done
if test -z "$ac_aux_dir"; then
  { echo "configure: error: can not find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." 1>&2; exit 1; }
fi
ac_config_guess=$ac_aux_dir/config.guess
ac_config_sub=$ac_aux_dir/config.sub
ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.

# Find a good install program.  We prefer a C program (faster),
# so one script is as good as another.  But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# ./install, which can be erroneously created by make from ./install.sh.
echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
echo "configure:852: checking for a BSD compatible install" >&5
if test -z "$INSTALL"; then
if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
    IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS=":"
  for ac_dir in $PATH; do
    # Account for people who put trailing slashes in PATH elements.
    case "$ac_dir/" in
    /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
    *)
      # OSF1 and SCO ODT 3.0 have their own names for install.
      # Don't use installbsd from OSF since it installs stuff as root
      # by default.
      for ac_prog in ginstall scoinst install; do
        if test -f $ac_dir/$ac_prog; then
	  if test $ac_prog = install &&
            grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
	    # AIX install.  It has an incompatible calling convention.
	    :
	  else
	    ac_cv_path_install="$ac_dir/$ac_prog -c"
	    break 2
	  fi
	fi
      done
      ;;
    esac
  done
  IFS="$ac_save_IFS"

fi
  if test "${ac_cv_path_install+set}" = set; then
    INSTALL="$ac_cv_path_install"
  else
    # As a last resort, use the slow shell script.  We don't cache a
    # path for INSTALL within a source directory, because that will
    # break other packages using the cache if that directory is
    # removed, or if the path is relative.
    INSTALL="$ac_install_sh"
  fi
fi
echo "$ac_t""$INSTALL" 1>&6

# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
# It thinks the first close brace ends the variable substitution.
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'

test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'

test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'


#--------------------------------------------------------------------
# Checks to see if the make program sets the $MAKE variable.
#--------------------------------------------------------------------

echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
echo "configure:910: checking whether ${MAKE-make} sets \${MAKE}" >&5
set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftestmake <<\EOF
all:
	@echo 'ac_maketemp="${MAKE}"'
EOF
# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
eval `${MAKE-make} -f conftestmake 2>/dev/null | grep temp=`
if test -n "$ac_maketemp"; then
  eval ac_cv_prog_make_${ac_make}_set=yes
else
  eval ac_cv_prog_make_${ac_make}_set=no
fi
rm -f conftestmake
fi
if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  SET_MAKE=
else
  echo "$ac_t""no" 1>&6
  SET_MAKE="MAKE=${MAKE-make}"
fi


#--------------------------------------------------------------------
# Find ranlib
#--------------------------------------------------------------------

# Extract the first word of "ranlib", so it can be a program name with args.
set dummy ranlib; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:944: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  if test -n "$RANLIB"; then
  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
else
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
  ac_dummy="$PATH"
  for ac_dir in $ac_dummy; do
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$ac_word; then
      ac_cv_prog_RANLIB="ranlib"
      break
    fi
  done
  IFS="$ac_save_ifs"
  test -z "$ac_cv_prog_RANLIB" && ac_cv_prog_RANLIB=":"
fi
fi
RANLIB="$ac_cv_prog_RANLIB"
if test -n "$RANLIB"; then
  echo "$ac_t""$RANLIB" 1>&6
else
  echo "$ac_t""no" 1>&6
fi


#--------------------------------------------------------------------
# This macro performs additional compiler tests.
#--------------------------------------------------------------------

echo $ac_n "checking for Cygwin environment""... $ac_c" 1>&6
echo "configure:977: checking for Cygwin environment" >&5
if eval "test \"`echo '$''{'ac_cv_cygwin'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 982 "configure"
#include "confdefs.h"

int main() {

#ifndef __CYGWIN__
#define __CYGWIN__ __CYGWIN32__
#endif
return __CYGWIN__;
; return 0; }
EOF
if { (eval echo configure:993: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_cygwin=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv_cygwin=no
fi
rm -f conftest*
rm -f conftest*
fi

echo "$ac_t""$ac_cv_cygwin" 1>&6
CYGWIN=
test "$ac_cv_cygwin" = yes && CYGWIN=yes

#--------------------------------------------------------------------
# Determines the correct binary file extension (.o, .obj, .exe etc.)
#--------------------------------------------------------------------

echo $ac_n "checking for object suffix""... $ac_c" 1>&6
echo "configure:1015: checking for object suffix" >&5
if eval "test \"`echo '$''{'ac_cv_objext'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  rm -f conftest*
echo 'int i = 1;' > conftest.$ac_ext
if { (eval echo configure:1021: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  for ac_file in conftest.*; do
    case $ac_file in
    *.c) ;;
    *) ac_cv_objext=`echo $ac_file | sed -e s/conftest.//` ;;
    esac
  done
else
  { echo "configure: error: installation or configuration problem; compiler does not work" 1>&2; exit 1; }
fi
rm -f conftest*
fi

echo "$ac_t""$ac_cv_objext" 1>&6
OBJEXT=$ac_cv_objext
ac_objext=$ac_cv_objext

echo $ac_n "checking for mingw32 environment""... $ac_c" 1>&6
echo "configure:1039: checking for mingw32 environment" >&5
if eval "test \"`echo '$''{'ac_cv_mingw32'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1044 "configure"
#include "confdefs.h"

int main() {
return __MINGW32__;
; return 0; }
EOF
if { (eval echo configure:1051: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_mingw32=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv_mingw32=no
fi
rm -f conftest*
rm -f conftest*
fi

echo "$ac_t""$ac_cv_mingw32" 1>&6
MINGW32=
test "$ac_cv_mingw32" = yes && MINGW32=yes


echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
echo "configure:1070: checking for executable suffix" >&5
if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  if test "$CYGWIN" = yes || test "$MINGW32" = yes; then
  ac_cv_exeext=.exe
else
  rm -f conftest*
  echo 'int main () { return 0; }' > conftest.$ac_ext
  ac_cv_exeext=
  if { (eval echo configure:1080: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
    for file in conftest.*; do
      case $file in
      *.c | *.o | *.obj) ;;
      *) ac_cv_exeext=`echo $file | sed -e s/conftest//` ;;
      esac
    done
  else
    { echo "configure: error: installation or configuration problem: compiler cannot create executables." 1>&2; exit 1; }
  fi
  rm -f conftest*
  test x"${ac_cv_exeext}" = x && ac_cv_exeext=no
fi
fi

EXEEXT=""
test x"${ac_cv_exeext}" != xno && EXEEXT=${ac_cv_exeext}
echo "$ac_t""${ac_cv_exeext}" 1>&6
ac_exeext=$EXEEXT


#--------------------------------------------------------------------
# "cygpath" is used on windows to generate native path names for include
# files.
# These variables should only be used with the compiler and linker since
# they generate native path names.
#
# Unix tclConfig.sh points SRC_DIR at the top-level directory of
# the Tcl sources, while the Windows tclConfig.sh points SRC_DIR at
# the win subdirectory.  Hence the different usages of SRC_DIR below.
#
# This must be done before calling SC_PUBLIC_TCL_HEADERS
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	CYGPATH="cygpath -w"
    ;;
    *)
	CYGPATH=echo
    ;;
esac



#--------------------------------------------------------------------
# Load the tclConfig.sh file
#--------------------------------------------------------------------


    #
    # Ok, lets find the tcl configuration
    # First, look for one uninstalled.
    # the alternative search directory is invoked by --with-tcl
    #

    if test x"${no_tcl}" = x ; then
	# we reset no_tcl in case something fails here
	no_tcl=true
	# Check whether --with-tcl or --without-tcl was given.
if test "${with_tcl+set}" = set; then
  withval="$with_tcl"
  with_tclconfig=${withval}
fi

	echo $ac_n "checking for Tcl configuration""... $ac_c" 1>&6
echo "configure:1146: checking for Tcl configuration" >&5
	if eval "test \"`echo '$''{'ac_cv_c_tclconfig'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  

	    # First check to see if --with-tcl was specified.
	    if test x"${with_tclconfig}" != x ; then
		if test -f "${with_tclconfig}/tclConfig.sh" ; then
		    ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
		else
		    { echo "configure: error: ${with_tclconfig} directory doesn't contain tclConfig.sh" 1>&2; exit 1; }
		fi
	    fi

	    # then check for a private Tcl installation
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in \
			../tcl \
			`ls -dr ../tcl[8-9].[0-9]* 2>/dev/null` \
			../../tcl \
			`ls -dr ../../tcl[8-9].[0-9]* 2>/dev/null` \
			../../../tcl \
			`ls -dr ../../../tcl[8-9].[0-9]* 2>/dev/null` ; do
		    if test -f "$i/unix/tclConfig.sh" ; then
			ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
			break
		    fi
		done
	    fi

	    # check in a few common install locations
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in `ls -d ${prefix}/lib 2>/dev/null` \
			`ls -d /usr/local/lib 2>/dev/null` ; do
		    if test -f "$i/tclConfig.sh" ; then
			ac_cv_c_tclconfig=`(cd $i; pwd)`
			break
		    fi
		done
	    fi

	    # check in a few other private locations
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in \
			${srcdir}/../tcl \
			`ls -dr ${srcdir}/../tcl[8-9].[0-9]* 2>/dev/null` ; do
		    if test -f "$i/unix/tclConfig.sh" ; then
		    ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
		    break
		fi
		done
	    fi
	
fi


	if test x"${ac_cv_c_tclconfig}" = x ; then
	    TCL_BIN_DIR="# no Tcl configs found"
	    echo "configure: warning: Can't find Tcl configuration definitions" 1>&2
	    exit 0
	else
	    no_tcl=
	    TCL_BIN_DIR=${ac_cv_c_tclconfig}
	    echo "$ac_t""found $TCL_BIN_DIR/tclConfig.sh" 1>&6
	fi
    fi


    echo $ac_n "checking for existence of $TCL_BIN_DIR/tclConfig.sh""... $ac_c" 1>&6
echo "configure:1216: checking for existence of $TCL_BIN_DIR/tclConfig.sh" >&5

    if test -f "$TCL_BIN_DIR/tclConfig.sh" ; then
        echo "$ac_t""loading" 1>&6
	. $TCL_BIN_DIR/tclConfig.sh
    else
        echo "$ac_t""file not found" 1>&6
    fi

    #
    # The eval is required to do the TCL_DBGX substitution in the
    # TCL_LIB_FILE variable
    #

    eval TCL_LIB_FILE=${TCL_LIB_FILE}
    eval TCL_LIB_FLAG=${TCL_LIB_FLAG}

    
    
    
    
    
    
    
    
    
    
    
    
    
    
    


#--------------------------------------------------------------------
# __CHANGE__
# Choose which headers you need.  Extension authors should try very
# hard to only rely on the Tcl public header files.  Internal headers
# contain private data structures and are subject to change without
# notice.
# This MUST be called after SC_PATH_TCLCONFIG/SC_LOAD_TCLCONFIG
#--------------------------------------------------------------------


    echo $ac_n "checking for Tcl public headers""... $ac_c" 1>&6
echo "configure:1261: checking for Tcl public headers" >&5

    # Check whether --with-tclinclude or --without-tclinclude was given.
if test "${with_tclinclude+set}" = set; then
  withval="$with_tclinclude"
  with_tclinclude=${withval}
fi


    if test x"${with_tclinclude}" != x ; then
	if test -f "${with_tclinclude}/tcl.h" ; then
	    ac_cv_c_tclh=${with_tclinclude}
	else
	    { echo "configure: error: ${with_tclinclude} directory does not contain Tcl public header file tcl.h" 1>&2; exit 1; }
	fi
    else
	if eval "test \"`echo '$''{'ac_cv_c_tclh'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  
	    # Use the value from --with-tclinclude, if it was given

	    if test x"${with_tclinclude}" != x ; then
		ac_cv_c_tclh=${with_tclinclude}
	    else
		# Check in the includedir, if --prefix was specified

		eval "temp_includedir=${includedir}"
		for i in \
			`ls -d ${temp_includedir} 2>/dev/null` \
			/usr/local/include /usr/include ; do
		    if test -f "$i/tcl.h" ; then
			ac_cv_c_tclh=$i
			break
		    fi
		done
	    fi
	
fi

    fi

    # Print a message based on how we determined the include path

    if test x"${ac_cv_c_tclh}" = x ; then
	{ echo "configure: error: tcl.h not found.  Please specify its location with --with-tclinclude" 1>&2; exit 1; }
    else
	echo "$ac_t""${ac_cv_c_tclh}" 1>&6
    fi

    # Convert to a native path and substitute into the output files.

    INCLUDE_DIR_NATIVE=`${CYGPATH} ${ac_cv_c_tclh}`

    TCL_INCLUDES=-I\"${INCLUDE_DIR_NATIVE}\"

    

#SC_PRIVATE_TCL_HEADERS

#--------------------------------------------------------------------
# __CHANGE__
# A few miscellaneous platform-specific items:
#
# Define a special symbol for Windows (BUILD_exampleA in this case) so
# that we create the export library with the dll.  See sha1.h on how
# to use this.
#
# Windows creates a few extra files that need to be cleaned up.
# You can add more files to clean if your extension creates any extra
# files.
#
# Define any extra compiler flags in the PACKAGE_CFLAGS variable.
# These will be appended to the current set of compiler flags for
# your system.
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	cat >> confdefs.h <<EOF
#define BUILD_${PACKAGE} 1
EOF

	CLEANFILES="*.lib *.dll *.exp *.ilk *.pdb vc50.pch"
	
    ;;
    *)
	CLEANFILES=
    ;;
esac

#--------------------------------------------------------------------
# Check whether --enable-threads or --disable-threads was given.
# So far only Tcl responds to this one.
#--------------------------------------------------------------------


    echo $ac_n "checking for building with threads""... $ac_c" 1>&6
echo "configure:1359: checking for building with threads" >&5
    # Check whether --enable-threads or --disable-threads was given.
if test "${enable_threads+set}" = set; then
  enableval="$enable_threads"
  tcl_ok=$enableval
else
  tcl_ok=no
fi


    if test "$tcl_ok" = "yes"; then
	TCL_THREADS=1
	cat >> confdefs.h <<\EOF
#define TCL_THREADS 1
EOF

	cat >> confdefs.h <<\EOF
#define _REENTRANT 1
EOF


	case "`uname -s`" in
	    *win32* | *WIN32* | *CYGWIN_NT*)
		    echo "$ac_t""yes" 1>&6
		;;
	    *)
		echo $ac_n "checking for pthread_mutex_init in -lpthread""... $ac_c" 1>&6
echo "configure:1386: checking for pthread_mutex_init in -lpthread" >&5
ac_lib_var=`echo pthread'_'pthread_mutex_init | sed 'y%./+-%__p_%'`
if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  ac_save_LIBS="$LIBS"
LIBS="-lpthread  $LIBS"
cat > conftest.$ac_ext <<EOF
#line 1394 "configure"
#include "confdefs.h"
/* Override any gcc2 internal prototype to avoid an error.  */
/* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
char pthread_mutex_init();

int main() {
pthread_mutex_init()
; return 0; }
EOF
if { (eval echo configure:1405: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=yes"
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_lib_$ac_lib_var=no"
fi
rm -f conftest*
LIBS="$ac_save_LIBS"

fi
if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  tcl_ok=yes
else
  echo "$ac_t""no" 1>&6
tcl_ok=no
fi

		if test "$tcl_ok" = "yes"; then
		    # The space is needed
		    THREADS_LIBS=" -lpthread"
		    echo "$ac_t""yes" 1>&6
		else
		    TCL_THREADS=0
		    echo "$ac_t""no" 1>&6
		    echo "configure: warning: "Don t know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile..."" 1>&2
		fi
		;;
	esac
    else
	TCL_THREADS=0
	echo "$ac_t""no (default)" 1>&6
    fi



#--------------------------------------------------------------------
# The statement below defines a collection of symbols related to
# building as a shared library instead of a static library.
#--------------------------------------------------------------------


    echo $ac_n "checking how to build libraries""... $ac_c" 1>&6
echo "configure:1451: checking how to build libraries" >&5
    # Check whether --enable-shared or --disable-shared was given.
if test "${enable_shared+set}" = set; then
  enableval="$enable_shared"
  tcl_ok=$enableval
else
  tcl_ok=yes
fi


    if test "${enable_shared+set}" = set; then
	enableval="$enable_shared"
	tcl_ok=$enableval
    else
	tcl_ok=yes
    fi

    if test "$tcl_ok" = "yes" ; then
	echo "$ac_t""shared" 1>&6
	SHARED_BUILD=1
    else
	echo "$ac_t""static" 1>&6
	SHARED_BUILD=0
	cat >> confdefs.h <<\EOF
#define STATIC_BUILD 1
EOF

    fi


#--------------------------------------------------------------------
# This macro figures out what flags to use with the compiler/linker
# when building shared/static debug/optimized objects.  This information
# is all taken from the tclConfig.sh file.
#--------------------------------------------------------------------

CFLAGS_DEBUG=${TCL_CFLAGS_DEBUG}
CFLAGS_OPTIMIZE=${TCL_CFLAGS_OPTIMIZE}
LDFLAGS_DEBUG=${TCL_LDFLAGS_DEBUG}
LDFLAGS_OPTIMIZE=${TCL_LDFLAGS_OPTIMIZE}
SHLIB_LD=${TCL_SHLIB_LD}
STLIB_LD=${TCL_STLIB_LD}
SHLIB_CFLAGS=${TCL_SHLIB_CFLAGS}








#--------------------------------------------------------------------
# Set the default compiler switches based on the --enable-symbols 
# option.
#--------------------------------------------------------------------


    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    tcl_dbgx=d
	;;
	*)
	    tcl_dbgx=g
	;;
    esac

    echo $ac_n "checking for build with symbols""... $ac_c" 1>&6
echo "configure:1518: checking for build with symbols" >&5
    # Check whether --enable-symbols or --disable-symbols was given.
if test "${enable_symbols+set}" = set; then
  enableval="$enable_symbols"
  tcl_ok=$enableval
else
  tcl_ok=no
fi

    if test "$tcl_ok" = "yes"; then
	CFLAGS_DEFAULT="${CFLAGS_DEBUG}"
	LDFLAGS_DEFAULT="${LDFLAGS_DEBUG}"
	DBGX=${tcl_dbgx}
	TCL_DBGX=${tcl_dbgx}
	echo "$ac_t""yes" 1>&6
    else
	CFLAGS_DEFAULT="${CFLAGS_OPTIMIZE}"
	LDFLAGS_DEFAULT="${LDFLAGS_OPTIMIZE}"
	DBGX=""
	TCL_DBGX=""
	echo "$ac_t""no" 1>&6
    fi

    
    
    


if test "${SHARED_BUILD}" = "1" ; then
    CFLAGS='${CFLAGS_DEFAULT} ${CFLAGS_WARNING} ${SHLIB_CFLAGS}'
else
    CFLAGS='${CFLAGS_DEFAULT} ${CFLAGS_WARNING}'
fi

#--------------------------------------------------------------------
# Everyone should be linking against the Tcl stub library.  If you
# can't for some reason, remove this definition.  If you aren't using
# stubs, you also need to modify the SHLIB_LD_LIBS setting below to
# link against the non-stubbed Tcl library.
#--------------------------------------------------------------------

cat >> confdefs.h <<\EOF
#define USE_TCL_STUBS 1
EOF


#--------------------------------------------------------------------
# This macro generates a line to use when building a library.  It
# depends on values set by the SC_ENABLE_SHARED, SC_ENABLE_SYMBOLS,
# and SC_LOAD_TCLCONFIG macros above.
#--------------------------------------------------------------------


    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    if test "${CC-cc}" = "cl"; then
		MAKE_STATIC_LIB="\${STLIB_LD} -out:\$@ \$(\$@_OBJECTS) "
		MAKE_SHARED_LIB="\${SHLIB_LD} \${SHLIB_LDFLAGS} \${SHLIB_LD_LIBS} \$(LDFLAGS) -out:\$@ \$(\$@_OBJECTS) "
	    fi
	    ;;
	*)
	    MAKE_STATIC_LIB="\${STLIB_LD} \$@ \$(\$@_OBJECTS)"
	    MAKE_SHARED_LIB="\${SHLIB_LD} -o \$@ \$(\$@_OBJECTS) \${SHLIB_LDFLAGS} \${SHLIB_LD_LIBS}"
	    ;;
    esac

    if test "${SHARED_BUILD}" = "1" ; then
	MAKE_LIB=${MAKE_SHARED_LIB}
    else
	MAKE_LIB=${MAKE_STATIC_LIB}
    fi

    
    
    


#--------------------------------------------------------------------
# eval these two values to dereference the ${DBGX} variable.
#--------------------------------------------------------------------

eval "SHARED_LIB_SUFFIX=${TCL_SHARED_LIB_SUFFIX}"
eval "UNSHARED_LIB_SUFFIX=${TCL_UNSHARED_LIB_SUFFIX}"

#--------------------------------------------------------------------
# Shared libraries and static libraries have different names.
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	if test "${SHARED_BUILD}" = "1" ; then
	    SHLIB_LD_LIBS="\"`cygpath -w ${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}`\" ${TCL_SHLIB_LD_LIBS}"
	    eval "${PACKAGE}_LIB_FILE=${PACKAGE}${SHARED_LIB_SUFFIX}"
	    RANLIB=:
	else
	    eval "${PACKAGE}_LIB_FILE=${PACKAGE}${UNSHARED_LIB_SUFFIX}"
	fi
	;;
    *)
	if test "${SHARED_BUILD}" = "1" ; then
	    SHLIB_LD_LIBS="${TCL_STUB_LIB_SPEC}"
	    eval "${PACKAGE}_LIB_FILE=lib${PACKAGE}${SHARED_LIB_SUFFIX}"
	    RANLIB=:
	else
	    eval "${PACKAGE}_LIB_FILE=lib${PACKAGE}${UNSHARED_LIB_SUFFIX}"
	fi
	;;
esac

#--------------------------------------------------------------------
# __CHANGE__
# Change the name from exampeA_LIB_FILE to match your package name.
#--------------------------------------------------------------------




#--------------------------------------------------------------------
# Find tclsh so that we can run pkg_mkIndex to generate the pkgIndex.tcl
# file during the install process.  Don't run the TCLSH_PROG through
# ${CYGPATH} because it's being used directly by make.
# Require that we use a tclsh shell version 8.2 or later since earlier
# versions have bugs in the pkg_mkIndex routine.
#--------------------------------------------------------------------


    echo $ac_n "checking for tclsh""... $ac_c" 1>&6
echo "configure:1645: checking for tclsh" >&5

    if eval "test \"`echo '$''{'ac_cv_path_tclsh'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  
	search_path=`echo ${exec_prefix}/bin:${prefix}/bin:${TCL_BIN_DIR}:${TCL_BIN_DIR}/../bin:${PATH} | sed -e 's/:/ /g'`
	for dir in $search_path ; do
	    for j in `ls -r $dir/tclsh[8-9]* 2> /dev/null` \
		    `ls -r $dir/tclsh* 2> /dev/null` ; do
		if test x"$ac_cv_path_tclsh" = x ; then
		    if test -f "$j" ; then
			ac_cv_path_tclsh=$j
			break
		    fi
		fi
	    done
	done
    
fi


    if test -f "$ac_cv_path_tclsh" ; then
	TCLSH_PROG=$ac_cv_path_tclsh
	echo "$ac_t""$TCLSH_PROG" 1>&6
    else
	{ echo "configure: error: No tclsh found in PATH:  $search_path" 1>&2; exit 1; }
    fi
    


#--------------------------------------------------------------------
# Finally, substitute all of the various values into the Makefile.
#--------------------------------------------------------------------

trap '' 1 2 15
cat > confcache <<\EOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs.  It is not useful on other systems.
# If it contains results you don't want to keep, you may remove or edit it.
#
# By default, configure uses ./config.cache as the cache file,
# creating it if it does not exist already.  You can give configure
# the --cache-file=FILE option to use a different cache file; that is
# what configure does when it calls configure scripts in
# subdirectories, so they share the cache.
# Giving --cache-file=/dev/null disables caching, for debugging configure.
# config.status only pays attention to the cache file if you give it the
# --recheck option to rerun configure.
#
EOF
# The following way of writing the cache mishandles newlines in values,
# but we know of no workaround that is simple, portable, and efficient.
# So, don't put newlines in cache variables' values.
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
(set) 2>&1 |
  case `(ac_space=' '; set | grep ac_space) 2>&1` in
  *ac_space=\ *)
    # `set' does not quote correctly, so add quotes (double-quote substitution
    # turns \\\\ into \\, and sed turns \\ into \).
    sed -n \
      -e "s/'/'\\\\''/g" \
      -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
    ;;
  *)
    # `set' quotes correctly as required by POSIX, so do not add quotes.
    sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
    ;;
  esac >> confcache
if cmp -s $cache_file confcache; then
  :
else
  if test -w $cache_file; then
    echo "updating cache $cache_file"
    cat confcache > $cache_file
  else
    echo "not updating unwritable cache $cache_file"
  fi
fi
rm -f confcache

trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

# Any assignment to VPATH causes Sun make to only execute
# the first set of double-colon rules, so remove it if not needed.
# If there is a colon in the path, we need to keep it.
if test "x$srcdir" = x.; then
  ac_vpsub='/^[ 	]*VPATH[ 	]*=[^:]*$/d'
fi

trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15

# Transform confdefs.h into DEFS.
# Protect against shell expansion while executing Makefile rules.
# Protect against Makefile macro expansion.
cat > conftest.defs <<\EOF
s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%-D\1=\2%g
s%[ 	`~#$^&*(){}\\|;'"<>?]%\\&%g
s%\[%\\&%g
s%\]%\\&%g
s%\$%$$%g
EOF
DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' '`
rm -f conftest.defs


# Without the "./", some shells look in PATH for config.status.
: ${CONFIG_STATUS=./config.status}

echo creating $CONFIG_STATUS
rm -f $CONFIG_STATUS
cat > $CONFIG_STATUS <<EOF
#! /bin/sh
# Generated automatically by configure.
# Run this file to recreate the current configuration.
# This directory was configured as follows,
# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
#
# $0 $ac_configure_args
#
# Compiler output produced by configure, useful for debugging
# configure, is in ./config.log if it exists.

ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
for ac_option
do
  case "\$ac_option" in
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
    exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
    echo "$CONFIG_STATUS generated by autoconf version 2.13"
    exit 0 ;;
  -help | --help | --hel | --he | --h)
    echo "\$ac_cs_usage"; exit 0 ;;
  *) echo "\$ac_cs_usage"; exit 1 ;;
  esac
done

ac_given_srcdir=$srcdir
ac_given_INSTALL="$INSTALL"

trap 'rm -fr `echo "Makefile \
	mkIndex.tcl" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
EOF
cat >> $CONFIG_STATUS <<EOF

# Protect against being on the right side of a sed subst in config.status.
sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
 s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
$ac_vpsub
$extrasub
s%@SHELL@%$SHELL%g
s%@CFLAGS@%$CFLAGS%g
s%@CPPFLAGS@%$CPPFLAGS%g
s%@CXXFLAGS@%$CXXFLAGS%g
s%@FFLAGS@%$FFLAGS%g
s%@DEFS@%$DEFS%g
s%@LDFLAGS@%$LDFLAGS%g
s%@LIBS@%$LIBS%g
s%@exec_prefix@%$exec_prefix%g
s%@prefix@%$prefix%g
s%@program_transform_name@%$program_transform_name%g
s%@bindir@%$bindir%g
s%@sbindir@%$sbindir%g
s%@libexecdir@%$libexecdir%g
s%@datadir@%$datadir%g
s%@sysconfdir@%$sysconfdir%g
s%@sharedstatedir@%$sharedstatedir%g
s%@localstatedir@%$localstatedir%g
s%@libdir@%$libdir%g
s%@includedir@%$includedir%g
s%@oldincludedir@%$oldincludedir%g
s%@infodir@%$infodir%g
s%@mandir@%$mandir%g
s%@PACKAGE@%$PACKAGE%g
s%@VERSION@%$VERSION%g
s%@CC@%$CC%g
s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
s%@INSTALL_DATA@%$INSTALL_DATA%g
s%@SET_MAKE@%$SET_MAKE%g
s%@RANLIB@%$RANLIB%g
s%@OBJEXT@%$OBJEXT%g
s%@EXEEXT@%$EXEEXT%g
s%@CYGPATH@%$CYGPATH%g
s%@TCL_DBGX@%$TCL_DBGX%g
s%@TCL_BIN_DIR@%$TCL_BIN_DIR%g
s%@TCL_SRC_DIR@%$TCL_SRC_DIR%g
s%@TCL_LIB_FILE@%$TCL_LIB_FILE%g
s%@TCL_LIBS@%$TCL_LIBS%g
s%@TCL_DEFS@%$TCL_DEFS%g
s%@TCL_SHLIB_LD_LIBS@%$TCL_SHLIB_LD_LIBS%g
s%@TCL_EXTRA_CFLAGS@%$TCL_EXTRA_CFLAGS%g
s%@TCL_LD_FLAGS@%$TCL_LD_FLAGS%g
s%@TCL_STUB_LIB_FILE@%$TCL_STUB_LIB_FILE%g
s%@TCL_LIB_SPEC@%$TCL_LIB_SPEC%g
s%@TCL_BUILD_LIB_SPEC@%$TCL_BUILD_LIB_SPEC%g
s%@TCL_STUB_LIB_SPEC@%$TCL_STUB_LIB_SPEC%g
s%@TCL_BUILD_STUB_LIB_SPEC@%$TCL_BUILD_STUB_LIB_SPEC%g
s%@TCL_INCLUDES@%$TCL_INCLUDES%g
s%@CLEANFILES@%$CLEANFILES%g
s%@CFLAGS_DEBUG@%$CFLAGS_DEBUG%g
s%@CFLAGS_OPTIMIZE@%$CFLAGS_OPTIMIZE%g
s%@STLIB_LD@%$STLIB_LD%g
s%@SHLIB_LD@%$SHLIB_LD%g
s%@SHLIB_CFLAGS@%$SHLIB_CFLAGS%g
s%@SHLIB_LDFLAGS@%$SHLIB_LDFLAGS%g
s%@CFLAGS_DEFAULT@%$CFLAGS_DEFAULT%g
s%@LDFLAGS_DEFAULT@%$LDFLAGS_DEFAULT%g
s%@MAKE_LIB@%$MAKE_LIB%g
s%@MAKE_SHARED_LIB@%$MAKE_SHARED_LIB%g
s%@MAKE_STATIC_LIB@%$MAKE_STATIC_LIB%g
s%@thread_LIB_FILE@%$thread_LIB_FILE%g
s%@SHLIB_LD_LIBS@%$SHLIB_LD_LIBS%g
s%@TCLSH_PROG@%$TCLSH_PROG%g

CEOF
EOF

cat >> $CONFIG_STATUS <<\EOF

# Split the substitutions into bite-sized pieces for seds with
# small command number limits, like on Digital OSF/1 and HP-UX.
ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
ac_file=1 # Number of current file.
ac_beg=1 # First line for current file.
ac_end=$ac_max_sed_cmds # Line after last line for current file.
ac_more_lines=:
ac_sed_cmds=""
while $ac_more_lines; do
  if test $ac_beg -gt 1; then
    sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
  else
    sed "${ac_end}q" conftest.subs > conftest.s$ac_file
  fi
  if test ! -s conftest.s$ac_file; then
    ac_more_lines=false
    rm -f conftest.s$ac_file
  else
    if test -z "$ac_sed_cmds"; then
      ac_sed_cmds="sed -f conftest.s$ac_file"
    else
      ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
    fi
    ac_file=`expr $ac_file + 1`
    ac_beg=$ac_end
    ac_end=`expr $ac_end + $ac_max_sed_cmds`
  fi
done
if test -z "$ac_sed_cmds"; then
  ac_sed_cmds=cat
fi
EOF

cat >> $CONFIG_STATUS <<EOF

CONFIG_FILES=\${CONFIG_FILES-"Makefile \
	mkIndex.tcl"}
EOF
cat >> $CONFIG_STATUS <<\EOF
for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
  case "$ac_file" in
  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
  *) ac_file_in="${ac_file}.in" ;;
  esac

  # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.

  # Remove last slash and all that follows it.  Not all systems have dirname.
  ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
  if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
    # The file is in a subdirectory.
    test ! -d "$ac_dir" && mkdir "$ac_dir"
    ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
    # A "../" for each directory in $ac_dir_suffix.
    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
  else
    ac_dir_suffix= ac_dots=
  fi

  case "$ac_given_srcdir" in
  .)  srcdir=.
      if test -z "$ac_dots"; then top_srcdir=.
      else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
  /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
  *) # Relative path.
    srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
    top_srcdir="$ac_dots$ac_given_srcdir" ;;
  esac

  case "$ac_given_INSTALL" in
  [/$]*) INSTALL="$ac_given_INSTALL" ;;
  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
  esac

  echo creating "$ac_file"
  rm -f "$ac_file"
  configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
  case "$ac_file" in
  *Makefile*) ac_comsub="1i\\
# $configure_input" ;;
  *) ac_comsub= ;;
  esac

  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
  sed -e "$ac_comsub
s%@configure_input@%$configure_input%g
s%@srcdir@%$srcdir%g
s%@top_srcdir@%$top_srcdir%g
s%@INSTALL@%$INSTALL%g
" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
fi; done
rm -f conftest.s*

EOF
cat >> $CONFIG_STATUS <<EOF

EOF
cat >> $CONFIG_STATUS <<\EOF

exit 0
EOF
chmod +x $CONFIG_STATUS
rm -fr confdefs* $ac_clean_files
test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1

Added unix/configure.in. 



































































































































































































































































































































































































































































































































































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#--------------------------------------------------------------------
# Sample configure.in for Tcl Extensions.  The only places you should
# need to modify this file are marked by the string __CHANGE__
#--------------------------------------------------------------------

#--------------------------------------------------------------------
# __CHANGE__
# This very first macro is used to verify that the configure script can 
# find the sources.  The argument to AC_INIT should be a unique filename
# for this package, and can be a relative path, such as:
#
# AC_INIT(../generic/tcl.h)
#--------------------------------------------------------------------

AC_INIT(../generic/threadCmd.c)

#--------------------------------------------------------------------
# __CHANGE__
# Set your package name and version numbers here.  The NODOT_VERSION is
# required for constructing the library name on systems that don't like
# dots in library names (Windows).  The VERSION variable is used on the
# other systems.
#--------------------------------------------------------------------

PACKAGE=thread

MAJOR_VERSION=2
MINOR_VERSION=0
PATCHLEVEL=

VERSION=${MAJOR_VERSION}.${MINOR_VERSION}${PATCHLEVEL}
NODOT_VERSION=${MAJOR_VERSION}${MINOR_VERSION}


AC_SUBST(PACKAGE)
AC_SUBST(VERSION)

#--------------------------------------------------------------------
# We put this here so that you can compile with -DVERSION="1.2" to
# encode the package version directly into the source files.
#--------------------------------------------------------------------

eval AC_DEFINE_UNQUOTED(VERSION, "${VERSION}")

#--------------------------------------------------------------------
# Check whether --enable-gcc or --disable-gcc was given.  Do this 
# before AC_CYGWIN is called so the compiler can 
# be fully tested by built-in autoconf tools.
# This macro also calls AC_PROG_CC to set the compiler if --enable-gcc
# was not used.
#--------------------------------------------------------------------

SC_ENABLE_GCC
AC_PROG_INSTALL

#--------------------------------------------------------------------
# Checks to see if the make program sets the $MAKE variable.
#--------------------------------------------------------------------

AC_PROG_MAKE_SET

#--------------------------------------------------------------------
# Find ranlib
#--------------------------------------------------------------------

AC_PROG_RANLIB

#--------------------------------------------------------------------
# This macro performs additional compiler tests.
#--------------------------------------------------------------------

AC_CYGWIN

#--------------------------------------------------------------------
# Determines the correct binary file extension (.o, .obj, .exe etc.)
#--------------------------------------------------------------------

AC_OBJEXT
AC_EXEEXT

#--------------------------------------------------------------------
# "cygpath" is used on windows to generate native path names for include
# files.
# These variables should only be used with the compiler and linker since
# they generate native path names.
#
# Unix tclConfig.sh points SRC_DIR at the top-level directory of
# the Tcl sources, while the Windows tclConfig.sh points SRC_DIR at
# the win subdirectory.  Hence the different usages of SRC_DIR below.
#
# This must be done before calling SC_PUBLIC_TCL_HEADERS
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	CYGPATH="cygpath -w"
    ;;
    *)
	CYGPATH=echo
    ;;
esac

AC_SUBST(CYGPATH)

#--------------------------------------------------------------------
# Load the tclConfig.sh file
#--------------------------------------------------------------------

SC_PATH_TCLCONFIG
SC_LOAD_TCLCONFIG

#--------------------------------------------------------------------
# __CHANGE__
# Choose which headers you need.  Extension authors should try very
# hard to only rely on the Tcl public header files.  Internal headers
# contain private data structures and are subject to change without
# notice.
# This MUST be called after SC_PATH_TCLCONFIG/SC_LOAD_TCLCONFIG
#--------------------------------------------------------------------

SC_PUBLIC_TCL_HEADERS
#SC_PRIVATE_TCL_HEADERS

#--------------------------------------------------------------------
# __CHANGE__
# A few miscellaneous platform-specific items:
#
# Define a special symbol for Windows (BUILD_exampleA in this case) so
# that we create the export library with the dll.  See sha1.h on how
# to use this.
#
# Windows creates a few extra files that need to be cleaned up.
# You can add more files to clean if your extension creates any extra
# files.
#
# Define any extra compiler flags in the PACKAGE_CFLAGS variable.
# These will be appended to the current set of compiler flags for
# your system.
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	AC_DEFINE_UNQUOTED(BUILD_${PACKAGE})
	CLEANFILES="*.lib *.dll *.exp *.ilk *.pdb vc50.pch"
	AC_SUBST(CLEANFILES)
    ;;
    *)
	CLEANFILES=
    ;;
esac

#--------------------------------------------------------------------
# Check whether --enable-threads or --disable-threads was given.
# So far only Tcl responds to this one.
#--------------------------------------------------------------------

SC_ENABLE_THREADS

#--------------------------------------------------------------------
# The statement below defines a collection of symbols related to
# building as a shared library instead of a static library.
#--------------------------------------------------------------------

SC_ENABLE_SHARED

#--------------------------------------------------------------------
# This macro figures out what flags to use with the compiler/linker
# when building shared/static debug/optimized objects.  This information
# is all taken from the tclConfig.sh file.
#--------------------------------------------------------------------

CFLAGS_DEBUG=${TCL_CFLAGS_DEBUG}
CFLAGS_OPTIMIZE=${TCL_CFLAGS_OPTIMIZE}
LDFLAGS_DEBUG=${TCL_LDFLAGS_DEBUG}
LDFLAGS_OPTIMIZE=${TCL_LDFLAGS_OPTIMIZE}
SHLIB_LD=${TCL_SHLIB_LD}
STLIB_LD=${TCL_STLIB_LD}
SHLIB_CFLAGS=${TCL_SHLIB_CFLAGS}

AC_SUBST(CFLAGS_DEBUG)
AC_SUBST(CFLAGS_OPTIMIZE)
AC_SUBST(STLIB_LD)
AC_SUBST(SHLIB_LD)
AC_SUBST(SHLIB_CFLAGS)
AC_SUBST(SHLIB_LDFLAGS)

#--------------------------------------------------------------------
# Set the default compiler switches based on the --enable-symbols 
# option.
#--------------------------------------------------------------------

SC_ENABLE_SYMBOLS

if test "${SHARED_BUILD}" = "1" ; then
    CFLAGS='${CFLAGS_DEFAULT} ${CFLAGS_WARNING} ${SHLIB_CFLAGS}'
else
    CFLAGS='${CFLAGS_DEFAULT} ${CFLAGS_WARNING}'
fi

#--------------------------------------------------------------------
# Everyone should be linking against the Tcl stub library.  If you
# can't for some reason, remove this definition.  If you aren't using
# stubs, you also need to modify the SHLIB_LD_LIBS setting below to
# link against the non-stubbed Tcl library.
#--------------------------------------------------------------------

AC_DEFINE(USE_TCL_STUBS)

#--------------------------------------------------------------------
# This macro generates a line to use when building a library.  It
# depends on values set by the SC_ENABLE_SHARED, SC_ENABLE_SYMBOLS,
# and SC_LOAD_TCLCONFIG macros above.
#--------------------------------------------------------------------

SC_MAKE_LIB

#--------------------------------------------------------------------
# eval these two values to dereference the ${DBGX} variable.
#--------------------------------------------------------------------

eval "SHARED_LIB_SUFFIX=${TCL_SHARED_LIB_SUFFIX}"
eval "UNSHARED_LIB_SUFFIX=${TCL_UNSHARED_LIB_SUFFIX}"

#--------------------------------------------------------------------
# Shared libraries and static libraries have different names.
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	if test "${SHARED_BUILD}" = "1" ; then
	    SHLIB_LD_LIBS="\"`cygpath -w ${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}`\" ${TCL_SHLIB_LD_LIBS}"
	    eval "${PACKAGE}_LIB_FILE=${PACKAGE}${SHARED_LIB_SUFFIX}"
	    RANLIB=:
	else
	    eval "${PACKAGE}_LIB_FILE=${PACKAGE}${UNSHARED_LIB_SUFFIX}"
	fi
	;;
    *)
	if test "${SHARED_BUILD}" = "1" ; then
	    SHLIB_LD_LIBS="${TCL_STUB_LIB_SPEC}"
	    eval "${PACKAGE}_LIB_FILE=lib${PACKAGE}${SHARED_LIB_SUFFIX}"
	    RANLIB=:
	else
	    eval "${PACKAGE}_LIB_FILE=lib${PACKAGE}${UNSHARED_LIB_SUFFIX}"
	fi
	;;
esac

#--------------------------------------------------------------------
# __CHANGE__
# Change the name from exampeA_LIB_FILE to match your package name.
#--------------------------------------------------------------------

AC_SUBST(thread_LIB_FILE)
AC_SUBST(SHLIB_LD_LIBS)

#--------------------------------------------------------------------
# Find tclsh so that we can run pkg_mkIndex to generate the pkgIndex.tcl
# file during the install process.  Don't run the TCLSH_PROG through
# ${CYGPATH} because it's being used directly by make.
# Require that we use a tclsh shell version 8.2 or later since earlier
# versions have bugs in the pkg_mkIndex routine.
#--------------------------------------------------------------------

SC_PROG_TCLSH

#--------------------------------------------------------------------
# Finally, substitute all of the various values into the Makefile.
#--------------------------------------------------------------------

AC_OUTPUT([Makefile \
	mkIndex.tcl])

Added unix/install-sh. 

















































































































































































































































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#!/bin/sh

#
# install - install a program, script, or datafile
# This comes from X11R5; it is not part of GNU.
#
# $XConsortium: install.sh,v 1.2 89/12/18 14:47:22 jim Exp $
#
# This script is compatible with the BSD install script, but was written
# from scratch.
#


# set DOITPROG to echo to test this script

# Don't use :- since 4.3BSD and earlier shells don't like it.
doit="${DOITPROG-}"


# put in absolute paths if you don't have them in your path; or use env. vars.

mvprog="${MVPROG-mv}"
cpprog="${CPPROG-cp}"
chmodprog="${CHMODPROG-chmod}"
chownprog="${CHOWNPROG-chown}"
chgrpprog="${CHGRPPROG-chgrp}"
stripprog="${STRIPPROG-strip}"
rmprog="${RMPROG-rm}"

instcmd="$mvprog"
chmodcmd=""
chowncmd=""
chgrpcmd=""
stripcmd=""
rmcmd="$rmprog -f"
mvcmd="$mvprog"
src=""
dst=""

while [ x"$1" != x ]; do
    case $1 in
	-c) instcmd="$cpprog"
	    shift
	    continue;;

	-m) chmodcmd="$chmodprog $2"
	    shift
	    shift
	    continue;;

	-o) chowncmd="$chownprog $2"
	    shift
	    shift
	    continue;;

	-g) chgrpcmd="$chgrpprog $2"
	    shift
	    shift
	    continue;;

	-s) stripcmd="$stripprog"
	    shift
	    continue;;

	*)  if [ x"$src" = x ]
	    then
		src=$1
	    else
		dst=$1
	    fi
	    shift
	    continue;;
    esac
done

if [ x"$src" = x ]
then
	echo "install:  no input file specified"
	exit 1
fi

if [ x"$dst" = x ]
then
	echo "install:  no destination specified"
	exit 1
fi


# If destination is a directory, append the input filename; if your system
# does not like double slashes in filenames, you may need to add some logic

if [ -d $dst ]
then
	dst="$dst"/`basename $src`
fi

# Make a temp file name in the proper directory.

dstdir=`dirname $dst`
dsttmp=$dstdir/#inst.$$#

# Move or copy the file name to the temp name

$doit $instcmd $src $dsttmp

# and set any options; do chmod last to preserve setuid bits

if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; fi
if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; fi
if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; fi
if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; fi

# Now rename the file to the real destination.

$doit $rmcmd $dst
$doit $mvcmd $dsttmp $dst


exit 0

Added unix/mkIndex.tcl.in. 







































































































































































































































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# mkIndex.tcl --
#
#	This script generates a pkgIndex.tcl file for an installed extension.
#
# Copyright (c) 1999 Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
#
# Notes:
#
# If you redefine $(libdir) using the configure switch --libdir=, then
# this script will probably fail for you.
#
# UNIX:
#      exec_prefix
#           |
#           |
#           |
#          lib
#          / \
#         /   \
#        /     \
#   PACKAGE   (.so files)
#       |
#       |
#       |
#  pkgIndex.tcl
#
# WIN:
#      exec_prefix
#          / \
#         /   \
#        /     \
#      bin     lib
#       |        \
#       |         \
#       |          \
# (.dll files)   PACKAGE
#                    |
#                    |
#                    |
#                pkgIndex.tcl
       
# The pkg_mkIndex routines from Tcl 8.2 and later support stub-enabled
# extensions.  Notify the user if this is not a valid tcl shell.
# Exit with a status of 0 so that the make-install process does not stop.

if {[catch {package require Tcl 8.2} msg]} {
    puts stderr "**WARNING**"
    puts stderr $msg
    puts stderr "Could not build pkgIndex.tcl file.  You must create one by hand"
    exit 0
}

# The name of the library(s) should be passed in as arguments.

set libraryList $argv

# Nativepath --
#
#	Convert a Cygnus style path to a native path
#
# Arguments:
#	pathName	Path to convert
#
# Results:
#	The result is the native name of the input pathName.
#	On Windows, this is z:/foo/bar, on Unix the input pathName is
#	returned.

proc Nativepath {pathName} {
    global tcl_platform

    if {![string match $tcl_platform(platform) unix]} {
	if {[regexp {//(.)/(.*)} $pathName null driveLetter pathRemains]} {
	    set pathName $driveLetter:/$pathRemains
	}
    }
    return $pathName
}

set prefix "@prefix@"
set exec_prefix "@exec_prefix@"

set exec_prefix [Nativepath $exec_prefix] 

set libdir @libdir@
set package @PACKAGE@
set version @VERSION@

cd $libdir
puts "Making pkgIndex.tcl in [file join [pwd] $package]"

if {$tcl_platform(platform) == "unix"} {
    if {[llength $libraryList] > 0} {
	set libraryPathList {}
	foreach lib $libraryList {
	    lappend libraryPathList [file join .. $lib]
	}
	puts "eval pkg_mkIndex $package$version $libraryPathList *.tcl"
	eval pkg_mkIndex $package$version $libraryPathList *.tcl
    }
} else {
    if {[llength $libraryList] > 0} {
	set libraryPathList {}
	foreach lib $libraryList {
	    lappend libraryPathList [file join .. .. bin $lib]
	}
	puts "eval pkg_mkIndex $package$version $libraryPathList *.tcl"
	eval pkg_mkIndex $package$version $libraryPathList *.tcl
    }
}

Added unix/mkinstalldirs. 



















































































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#! /bin/sh
# mkinstalldirs --- make directory hierarchy
# Author: Noah Friedman <[email protected]>
# Created: 1993-05-16
# Public domain

# $Id: mkinstalldirs,v 1.1.1.1 2000/01/19 22:57:24 welch Exp $

errstatus=0

for file
do
   set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
   shift

   pathcomp=
   for d
   do
     pathcomp="$pathcomp$d"
     case "$pathcomp" in
       -* ) pathcomp=./$pathcomp ;;
     esac

     if test ! -d "$pathcomp"; then
        echo "mkdir $pathcomp"

        mkdir "$pathcomp" || lasterr=$?

        if test ! -d "$pathcomp"; then
  	  errstatus=$lasterr
        fi
     fi

     pathcomp="$pathcomp/"
   done
done

exit $errstatus

# mkinstalldirs ends here

Added unix/solaris/CONFIG. 







>
>

1
2

sh ../configure --enable-gcc --enable-threads --prefix=/home/welch/install --exec-prefix=/home/welch/install/solaris \
	--with-tcl=/home/welch/cvs/tcl8.3/unix/sol-thread

Added unix/tcl.m4. 



































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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# tcl.m4 --
#
#	This file provides a set of autoconf macros to help TEA-enable
#	a Tcl extension.
#
# Copyright (c) 1999 Scriptics Corporation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.

#------------------------------------------------------------------------
# SC_PATH_TCLCONFIG --
#
#	Locate the tclConfig.sh file and perform a sanity check on
#	the Tcl compile flags
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--with-tcl=...
#
#	Defines the following vars:
#		TCL_BIN_DIR	Full path to the directory containing
#				the tclConfig.sh file
#------------------------------------------------------------------------

AC_DEFUN(SC_PATH_TCLCONFIG, [
    #
    # Ok, lets find the tcl configuration
    # First, look for one uninstalled.
    # the alternative search directory is invoked by --with-tcl
    #

    if test x"${no_tcl}" = x ; then
	# we reset no_tcl in case something fails here
	no_tcl=true
	AC_ARG_WITH(tcl, [  --with-tcl              directory containing tcl configuration (tclConfig.sh)], with_tclconfig=${withval})
	AC_MSG_CHECKING([for Tcl configuration])
	AC_CACHE_VAL(ac_cv_c_tclconfig,[

	    # First check to see if --with-tcl was specified.
	    if test x"${with_tclconfig}" != x ; then
		if test -f "${with_tclconfig}/tclConfig.sh" ; then
		    ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
		else
		    AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
		fi
	    fi

	    # then check for a private Tcl installation
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in \
			../tcl \
			`ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
			../../tcl \
			`ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
			../../../tcl \
			`ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tclConfig.sh" ; then
			ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
			break
		    fi
		done
	    fi

	    # check in a few common install locations
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in `ls -d ${prefix}/lib 2>/dev/null` \
			`ls -d /usr/local/lib 2>/dev/null` ; do
		    if test -f "$i/tclConfig.sh" ; then
			ac_cv_c_tclconfig=`(cd $i; pwd)`
			break
		    fi
		done
	    fi

	    # check in a few other private locations
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in \
			${srcdir}/../tcl \
			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tclConfig.sh" ; then
		    ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
		    break
		fi
		done
	    fi
	])

	if test x"${ac_cv_c_tclconfig}" = x ; then
	    TCL_BIN_DIR="# no Tcl configs found"
	    AC_MSG_WARN(Can't find Tcl configuration definitions)
	    exit 0
	else
	    no_tcl=
	    TCL_BIN_DIR=${ac_cv_c_tclconfig}
	    AC_MSG_RESULT(found $TCL_BIN_DIR/tclConfig.sh)
	fi
    fi
])

#------------------------------------------------------------------------
# SC_PATH_TKCONFIG --
#
#	Locate the tkConfig.sh file
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--with-tk=...
#
#	Defines the following vars:
#		TK_BIN_DIR	Full path to the directory containing
#				the tkConfig.sh file
#------------------------------------------------------------------------

AC_DEFUN(SC_PATH_TKCONFIG, [
    #
    # Ok, lets find the tk configuration
    # First, look for one uninstalled.
    # the alternative search directory is invoked by --with-tk
    #

    if test x"${no_tk}" = x ; then
	# we reset no_tk in case something fails here
	no_tk=true
	AC_ARG_WITH(tk, [  --with-tk               directory containing tk configuration (tkConfig.sh)], with_tkconfig=${withval})
	AC_MSG_CHECKING([for Tk configuration])
	AC_CACHE_VAL(ac_cv_c_tkconfig,[

	    # First check to see if --with-tkconfig was specified.
	    if test x"${with_tkconfig}" != x ; then
		if test -f "${with_tkconfig}/tkConfig.sh" ; then
		    ac_cv_c_tkconfig=`(cd ${with_tkconfig}; pwd)`
		else
		    AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
		fi
	    fi

	    # then check for a private Tk library
	    if test x"${ac_cv_c_tkconfig}" = x ; then
		for i in \
			../tk \
			`ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \
			../../tk \
			`ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \
			../../../tk \
			`ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tkConfig.sh" ; then
			ac_cv_c_tkconfig=`(cd $i/unix; pwd)`
			break
		    fi
		done
	    fi
	    # check in a few common install locations
	    if test x"${ac_cv_c_tkconfig}" = x ; then
		for i in `ls -d ${prefix}/lib 2>/dev/null` \
			`ls -d /usr/local/lib 2>/dev/null` ; do
		    if test -f "$i/tkConfig.sh" ; then
			ac_cv_c_tkconfig=`(cd $i; pwd)`
			break
		    fi
		done
	    fi
	    # check in a few other private locations
	    if test x"${ac_cv_c_tkconfig}" = x ; then
		for i in \
			${srcdir}/../tk \
			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tkConfig.sh" ; then
			ac_cv_c_tkconfig=`(cd $i/unix; pwd)`
			break
		    fi
		done
	    fi
	])
	if test x"${ac_cv_c_tkconfig}" = x ; then
	    TK_BIN_DIR="# no Tk configs found"
	    AC_MSG_WARN(Can't find Tk configuration definitions)
	    exit 0
	else
	    no_tk=
	    TK_BIN_DIR=${ac_cv_c_tkconfig}
	    AC_MSG_RESULT(found $TK_BIN_DIR/tkConfig.sh)
	fi
    fi

])

#------------------------------------------------------------------------
# SC_LOAD_TCLCONFIG --
#
#	Load the tclConfig.sh file
#
# Arguments:
#	
#	Requires the following vars to be set:
#		TCL_BIN_DIR
#
# Results:
#
#	Subst the following vars:
#		TCL_BIN_DIR
#		TCL_SRC_DIR
#		TCL_LIB_FILE
#
#------------------------------------------------------------------------

AC_DEFUN(SC_LOAD_TCLCONFIG, [
    AC_MSG_CHECKING([for existence of $TCL_BIN_DIR/tclConfig.sh])

    if test -f "$TCL_BIN_DIR/tclConfig.sh" ; then
        AC_MSG_RESULT([loading])
	. $TCL_BIN_DIR/tclConfig.sh
    else
        AC_MSG_RESULT([file not found])
    fi

    #
    # The eval is required to do the TCL_DBGX substitution in the
    # TCL_LIB_FILE variable
    #

    eval TCL_LIB_FILE=${TCL_LIB_FILE}
    eval TCL_LIB_FLAG=${TCL_LIB_FLAG}

    AC_SUBST(TCL_DBGX)
    AC_SUBST(TCL_BIN_DIR)
    AC_SUBST(TCL_SRC_DIR)
    AC_SUBST(TCL_LIB_FILE)
    AC_SUBST(TCL_LIBS)
    AC_SUBST(TCL_DEFS)
    AC_SUBST(TCL_SHLIB_LD_LIBS)
    AC_SUBST(TCL_EXTRA_CFLAGS)
    AC_SUBST(TCL_LD_FLAGS)
    AC_SUBST(TCL_LIB_FILE)
    AC_SUBST(TCL_STUB_LIB_FILE)
    AC_SUBST(TCL_LIB_SPEC)
    AC_SUBST(TCL_BUILD_LIB_SPEC)
    AC_SUBST(TCL_STUB_LIB_SPEC)
    AC_SUBST(TCL_BUILD_STUB_LIB_SPEC)
])

#------------------------------------------------------------------------
# SC_LOAD_TKCONFIG --
#
#	Load the tkConfig.sh file
#
# Arguments:
#	
#	Requires the following vars to be set:
#		TK_BIN_DIR
#
# Results:
#
#	Sets the following vars that should be in tkConfig.sh:
#		TK_BIN_DIR
#------------------------------------------------------------------------

AC_DEFUN(SC_LOAD_TKCONFIG, [
    AC_MSG_CHECKING([for existence of $TK_BIN_DIR/tkConfig.sh])

    if test -f "$TK_BIN_DIR/tkConfig.sh" ; then
        AC_MSG_RESULT([loading])
	. $TK_BIN_DIR/tkConfig.sh
    else
        AC_MSG_RESULT([could not find $TK_BIN_DIR/tkConfig.sh])
    fi

    AC_SUBST(TK_BIN_DIR)
    AC_SUBST(TK_SRC_DIR)
    AC_SUBST(TK_LIB_FILE)
    AC_SUBST(TK_XINCLUDES)
])

#------------------------------------------------------------------------
# SC_ENABLE_GCC --
#
#	Allows the use of GCC if available
#
# Arguments:
#	none
#	
# Results:
#
#	Adds the following arguments to configure:
#		--enable-gcc
#
#	Sets the following vars:
#		CC	Command to use for the compiler
#------------------------------------------------------------------------

AC_DEFUN(SC_ENABLE_GCC, [
    AC_ARG_ENABLE(gcc, [  --enable-gcc            allow use of gcc if available [--disable-gcc]],
	[ok=$enableval], [ok=no])
    if test "$ok" = "yes"; then
	CC=gcc
    else
	case "`uname -s`" in
	    *win32* | *WIN32* | *CYGWIN_NT*)
		CC=cl
	    ;;
	    *)
		CC=${CC-cc}
	    ;;
	esac
    fi
    AC_PROG_CC
])

#------------------------------------------------------------------------
# SC_ENABLE_SHARED --
#
#	Allows the building of shared libraries
#
# Arguments:
#	none
#	
# Results:
#
#	Adds the following arguments to configure:
#		--enable-shared=yes|no
#
#	Defines the following vars:
#		STATIC_BUILD	Used for building import/export libraries
#				on Windows.
#
#	Sets the following vars:
#		SHARED_BUILD	Value of 1 or 0
#------------------------------------------------------------------------

AC_DEFUN(SC_ENABLE_SHARED, [
    AC_MSG_CHECKING([how to build libraries])
    AC_ARG_ENABLE(shared,
	[  --enable-shared         build and link with shared libraries [--enable-shared]],
	[tcl_ok=$enableval], [tcl_ok=yes])

    if test "${enable_shared+set}" = set; then
	enableval="$enable_shared"
	tcl_ok=$enableval
    else
	tcl_ok=yes
    fi

    if test "$tcl_ok" = "yes" ; then
	AC_MSG_RESULT([shared])
	SHARED_BUILD=1
    else
	AC_MSG_RESULT([static])
	SHARED_BUILD=0
	AC_DEFINE(STATIC_BUILD)
    fi
])

#------------------------------------------------------------------------
# SC_ENABLE_THREADS --
#
#	Specify if thread support should be enabled
#
# Arguments:
#	none
#	
# Results:
#
#	Adds the following arguments to configure:
#		--enable-threads
#
#	Sets the following vars:
#		THREADS_LIBS	Thread library(s)
#
#	Defines the following vars:
#		TCL_THREADS
#		_REENTRANT
#
#------------------------------------------------------------------------

AC_DEFUN(SC_ENABLE_THREADS, [
    AC_MSG_CHECKING(for building with threads)
    AC_ARG_ENABLE(threads, [  --enable-threads        build with threads],
	[tcl_ok=$enableval], [tcl_ok=no])

    if test "$tcl_ok" = "yes"; then
	TCL_THREADS=1
	AC_DEFINE(TCL_THREADS)
	AC_DEFINE(_REENTRANT)

	case "`uname -s`" in
	    *win32* | *WIN32* | *CYGWIN_NT*)
		    AC_MSG_RESULT(yes)
		;;
	    *)
		AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
		if test "$tcl_ok" = "yes"; then
		    # The space is needed
		    THREADS_LIBS=" -lpthread"
		    AC_MSG_RESULT(yes)
		else
		    TCL_THREADS=0
		    AC_MSG_RESULT(no)
		    AC_MSG_WARN("Don t know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile...")
		fi
		;;
	esac
    else
	TCL_THREADS=0
	AC_MSG_RESULT(no (default))
    fi

])

#------------------------------------------------------------------------
# SC_ENABLE_SYMBOLS --
#
#	Specify if debugging symbols should be used
#
# Arguments:
#	none
#	
#	Requires the following vars to be set:
#		CFLAGS_DEBUG
#		CFLAGS_OPTIMIZE
#		LDFLAGS_DEBUG
#		LDFLAGS_OPTIMIZE
#	
# Results:
#
#	Adds the following arguments to configure:
#		--enable-symbols
#
#	Defines the following vars:
#		CFLAGS_DEFAULT	Sets to CFLAGS_DEBUG if true
#				Sets to CFLAGS_OPTIMIZE if false
#		LDFLAGS_DEFAULT	Sets to LDFLAGS_DEBUG if true
#				Sets to LDFLAGS_OPTIMIZE if false
#		DBGX		Debug library extension
#
#------------------------------------------------------------------------

AC_DEFUN(SC_ENABLE_SYMBOLS, [
    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    tcl_dbgx=d
	;;
	*)
	    tcl_dbgx=g
	;;
    esac

    AC_MSG_CHECKING([for build with symbols])
    AC_ARG_ENABLE(symbols, [  --enable-symbols        build with debugging symbols [--disable-symbols]],    [tcl_ok=$enableval], [tcl_ok=no])
    if test "$tcl_ok" = "yes"; then
	CFLAGS_DEFAULT="${CFLAGS_DEBUG}"
	LDFLAGS_DEFAULT="${LDFLAGS_DEBUG}"
	DBGX=${tcl_dbgx}
	TCL_DBGX=${tcl_dbgx}
	AC_MSG_RESULT([yes])
    else
	CFLAGS_DEFAULT="${CFLAGS_OPTIMIZE}"
	LDFLAGS_DEFAULT="${LDFLAGS_OPTIMIZE}"
	DBGX=""
	TCL_DBGX=""
	AC_MSG_RESULT([no])
    fi

    AC_SUBST(TCL_DBGX)
    AC_SUBST(CFLAGS_DEFAULT)
    AC_SUBST(LDFLAGS_DEFAULT)
])

#--------------------------------------------------------------------
# SC_CONFIG_CFLAGS
#
#	Try to determine the proper flags to pass to the compiler
#	for building shared libraries and other such nonsense.
#
# Arguments:
#	none
#
# Results:
#
#	Defines the following vars:
#
#       DL_OBJS -       Name of the object file that implements dynamic
#                       loading for Tcl on this system.
#       DL_LIBS -       Library file(s) to include in tclsh and other base
#                       applications in order for the "load" command to work.
#       LDFLAGS -      Flags to pass to the compiler when linking object
#                       files into an executable application binary such
#                       as tclsh.
#       LD_SEARCH_FLAGS-Flags to pass to ld, such as "-R /usr/local/tcl/lib",
#                       that tell the run-time dynamic linker where to look
#                       for shared libraries such as libtcl.so.  Depends on
#                       the variable LIB_RUNTIME_DIR in the Makefile.
#       MAKE_LIB -      Command to execute to build the Tcl library;
#                       differs depending on whether or not Tcl is being
#                       compiled as a shared library.
#       SHLIB_CFLAGS -  Flags to pass to cc when compiling the components
#                       of a shared library (may request position-independent
#                       code, among other things).
#       SHLIB_LD -      Base command to use for combining object files
#                       into a shared library.
#       SHLIB_LD_LIBS - Dependent libraries for the linker to scan when
#                       creating shared libraries.  This symbol typically
#                       goes at the end of the "ld" commands that build
#                       shared libraries. The value of the symbol is
#                       "${LIBS}" if all of the dependent libraries should
#                       be specified when creating a shared library.  If
#                       dependent libraries should not be specified (as on
#                       SunOS 4.x, where they cause the link to fail, or in
#                       general if Tcl and Tk aren't themselves shared
#                       libraries), then this symbol has an empty string
#                       as its value.
#       SHLIB_SUFFIX -  Suffix to use for the names of dynamically loadable
#                       extensions.  An empty string means we don't know how
#                       to use shared libraries on this platform.
#       TCL_LIB_FILE -  Name of the file that contains the Tcl library, such
#                       as libtcl7.8.so or libtcl7.8.a.
#       TCL_LIB_SUFFIX -Specifies everything that comes after the "libtcl"
#                       in the shared library name, using the $VERSION variable
#                       to put the version in the right place.  This is used
#                       by platforms that need non-standard library names.
#                       Examples:  ${VERSION}.so.1.1 on NetBSD, since it needs
#                       to have a version after the .so, and ${VERSION}.a
#                       on AIX, since the Tcl shared library needs to have
#                       a .a extension whereas shared objects for loadable
#                       extensions have a .so extension.  Defaults to
#                       ${VERSION}${SHLIB_SUFFIX}.
#       TCL_NEEDS_EXP_FILE -
#                       1 means that an export file is needed to link to a
#                       shared library.
#       TCL_EXP_FILE -  The name of the installed export / import file which
#                       should be used to link to the Tcl shared library.
#                       Empty if Tcl is unshared.
#       TCL_BUILD_EXP_FILE -
#                       The name of the built export / import file which
#                       should be used to link to the Tcl shared library.
#                       Empty if Tcl is unshared.
#	CFLAGS_DEBUG -
#			Flags used when running the compiler in debug mode
#	CFLAGS_OPTIMIZE -
#			Flags used when running the compiler in optimize mode
#
#	EXTRA_CFLAGS
#
#	Subst's the following vars:
#		DL_LIBS
#		CFLAGS_DEBUG
#		CFLAGS_OPTIMIZE
#--------------------------------------------------------------------

AC_DEFUN(SC_CONFIG_CFLAGS, [

    # Step 0: Enable 64 bit support?

    AC_MSG_CHECKING([if 64bit support is enabled])
    AC_ARG_ENABLE(64bit,[  --enable-64bit          enable 64bit support],,enableval="no")

    if test "$enableval" = "yes"; then
	AC_MSG_RESULT(Will compile with 64bit support)
	do64bit=yes
    else
	do64bit=no
    fi
    AC_MSG_RESULT($do64bit)
 
    # Step 1: set the variable "system" to hold the name and version number
    # for the system.  This can usually be done via the "uname" command, but
    # there are a few systems, like Next, where this doesn't work.

    AC_MSG_CHECKING([system version (for dynamic loading)])
    if test -f /usr/lib/NextStep/software_version; then
	system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
    else
	system=`uname -s`-`uname -r`
	if test "$?" -ne 0 ; then
	    AC_MSG_RESULT([unknown (can't find uname command)])
	    system=unknown
	else
	    # Special check for weird MP-RAS system (uname returns weird
	    # results, and the version is kept in special file).
	
	    if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
		system=MP-RAS-`awk '{print $3}' /etc/.relid'`
	    fi
	    if test "`uname -s`" = "AIX" ; then
		system=AIX-`uname -v`.`uname -r`
	    fi
	    AC_MSG_RESULT($system)
	fi
    fi

    # Step 2: check for existence of -ldl library.  This is needed because
    # Linux can use either -ldl or -ldld for dynamic loading.

    AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no)

    # Step 3: set configuration options based on system name and version.

    do64bit_ok=no
    fullSrcDir=`cd $srcdir; pwd`
    EXTRA_CFLAGS=""
    TCL_EXPORT_FILE_SUFFIX=""
    UNSHARED_LIB_SUFFIX=""
    TCL_TRIM_DOTS='`echo ${VERSION} | tr -d .`'
    ECHO_VERSION='`echo ${VERSION}`'
    TCL_LIB_VERSIONS_OK=ok
    CFLAGS_DEBUG=-g
    CFLAGS_OPTIMIZE=-O
    TCL_NEEDS_EXP_FILE=0
    TCL_BUILD_EXP_FILE=""
    TCL_EXP_FILE=""
    STLIB_LD="ar cr"
    case $system in
	AIX-4.[[2-9]])
	    SHLIB_CFLAGS=""
	    SHLIB_LD="$fullSrcDir/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    TCL_NEEDS_EXP_FILE=1
	    TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp'
	    ;;
	AIX-*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="$fullSrcDir/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    LIBOBJS="$LIBOBJS tclLoadAix.o"
	    DL_LIBS="-lld"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    TCL_NEEDS_EXP_FILE=1
	    TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp'
	    ;;
	BSD/OS-2.1*|BSD/OS-3*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="shlicc -r"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	BSD/OS-4.*)
	    SHLIB_CFLAGS="-export-dynamic -fPIC"
	    SHLIB_LD="cc -shared"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS="-export-dynamic"
	    LD_SEARCH_FLAGS=""
	    ;;
	*win32*|*WIN32*|CYGWIN_NT*|cygwin_nt*)
	    CFLAGS_DEBUG="-nologo -Z7 -Od -WX ${runtime}d"
	    CFLAGS_OPTIMIZE="-nologo -Oti -Gs -GD ${runtime}"
	    LDFLAGS_CONSOLE="-subsystem:console"
	    LDFLAGS_WINDOW="-subsystem:windows"
	    LDFLAGS_DEBUG="-debug:full -debugtype:cv"
	    LDFLAGS_OPTIMIZE="-release"
	    EXTRA_CFLAGS="-YX"
	    PATHTYPE=-w
	    STLIB_LD="lib -nologo"
	    SHLIB_LD="link -dll -nologo"
	    SHLIB_LD_LIBS="user32.lib advapi32.lib"
	    RC="rc"
	    ;;
	dgux*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*|HP-UX-*.11.*)
	    SHLIB_SUFFIX=".sl"
	    AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
	    if test "$tcl_ok" = yes; then
		SHLIB_CFLAGS="+z"
		SHLIB_LD="ld -b"
		SHLIB_LD_LIBS=""
		DL_OBJS="tclLoadShl.o"
		DL_LIBS="-ldld"
		LDFLAGS="-Wl,-E"
		LD_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
	    fi
	    ;;
	IRIX-4.*)
	    SHLIB_CFLAGS="-G 0"
	    SHLIB_SUFFIX=".a"
	    SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
	    SHLIB_LD_LIBS='${LIBS}'
	    DL_OBJS="tclLoadAout.o"
	    DL_LIBS=""
	    LDFLAGS="-Wl,-D,08000000"
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a'
	    ;;
	IRIX-5.*|IRIX-6.*|IRIX64-6.5*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="ld -n32 -shared -rdata_shared"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	    if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
		EXTRA_CFLAGS="-mabi=n32"
		LDFLAGS="-mabi=n32"
	    else
		case $system in
		    IRIX-6.3)
			# Use to build 6.2 compatible binaries on 6.3.
			EXTRA_CFLAGS="-n32 -D_OLD_TERMIOS"
			;;
		    *)
			EXTRA_CFLAGS="-n32"
			;;
		esac
		LDFLAGS="-n32"
	    fi
	    ;;
	IRIX64-6.*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="ld -32 -shared -rdata_shared"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	    ;;
	Linux*)
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"

	    # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings 
	    # when you inline the string and math operations.  Turn this off to
	    # get rid of the warnings.

	    CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"

	    if test "$have_dl" = yes; then
		SHLIB_LD="${CC} -shared"
		DL_OBJS="tclLoadDl.o"
		DL_LIBS="-ldl"
		LDFLAGS="-rdynamic"
		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	    else
		AC_CHECK_HEADER(dld.h, [
		    SHLIB_LD="ld -shared"
		    DL_OBJS="tclLoadDld.o"
		    DL_LIBS="-ldld"
		    LDFLAGS=""
		    LD_SEARCH_FLAGS=""])
	    fi
	    if test "`uname -m`" = "alpha" ; then
		EXTRA_CFLAGS="-mieee"
	    fi
	    ;;
	MP-RAS-02*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	MP-RAS-*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS="-Wl,-Bexport"
	    LD_SEARCH_FLAGS=""
	    ;;
	NetBSD-*|FreeBSD-[[12]].*|OpenBSD-*)
	    # Not available on all versions:  check for include file.
	    AC_CHECK_HEADER(dlfcn.h, [
		SHLIB_CFLAGS="-fpic"
		SHLIB_LD="ld -Bshareable -x"
		SHLIB_LD_LIBS=""
		SHLIB_SUFFIX=".so"
		DL_OBJS="tclLoadDl.o"
		DL_LIBS=""
		LDFLAGS=""
		LD_SEARCH_FLAGS=""
		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
	    ], [
		SHLIB_CFLAGS=""
		SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r"
		SHLIB_LD_LIBS='${LIBS}'
		SHLIB_SUFFIX=".a"
		DL_OBJS="tclLoadAout.o"
		DL_LIBS=""
		LDFLAGS=""
		LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	    ])

	    # FreeBSD doesn't handle version numbers with dots.

	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	    TCL_LIB_VERSIONS_OK=nodots
	    ;;
	FreeBSD-*)
	    # FreeBSD 3.* and greater have ELF.
	    SHLIB_CFLAGS="-fpic"
	    SHLIB_LD="ld -Bshareable -x"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	NEXTSTEP-*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="cc -nostdlib -r"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadNext.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	OS/390-*)
	    CFLAGS_OPTIMIZE=""      # Optimizer is buggy
	    AC_DEFINE(_OE_SOCKETS)  # needed in sys/socket.h
	    ;;      
	OSF1-1.0|OSF1-1.1|OSF1-1.2)
	    # OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
	    SHLIB_CFLAGS=""
	    # Hack: make package name same as library name
	    SHLIB_LD='ld -R -export $@:'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadOSF.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	OSF1-1.*)
	    # OSF/1 1.3 from OSF using ELF, and derivatives, including AD2
	    SHLIB_CFLAGS="-fpic"
	    SHLIB_LD="ld -shared"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	OSF1-V*)
	    # Digital OSF/1
	    SHLIB_CFLAGS=""
	    SHLIB_LD='ld -shared -expect_unresolved "*"'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	    ;;
	RISCos-*)
	    SHLIB_CFLAGS="-G 0"
	    SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".a"
	    DL_OBJS="tclLoadAout.o"
	    DL_LIBS=""
	    LDFLAGS="-Wl,-D,08000000"
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    ;;
	SCO_SV-3.2*)
	    # Note, dlopen is available only on SCO 3.2.5 and greater.  However,
	    # this test works, since "uname -s" was non-standard in 3.2.4 and
	    # below.
	    SHLIB_CFLAGS="-Kpic -belf"
	    SHLIB_LD="ld -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS="-belf -Wl,-Bexport"
	    LD_SEARCH_FLAGS=""
	    ;;
	SINIX*5.4*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	SunOS-4*)
	    SHLIB_CFLAGS="-PIC"
	    SHLIB_LD="ld"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'

	    # SunOS can't handle version numbers with dots in them in library
	    # specs, like -ltcl7.5, so use -ltcl75 instead.  Also, it
	    # requires an extra version number at the end of .so file names.
	    # So, the library has to have a name like libtcl75.so.1.0

	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	    TCL_LIB_VERSIONS_OK=nodots
	    ;;
	SunOS-5.[[0-6]]*)
	    SHLIB_CFLAGS="-KPIC"
	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"

	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
	    # symbols when dynamically loaded into tclsh.

	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS=""
	    LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
	    ;;
	SunOS-5*)
	    SHLIB_CFLAGS="-KPIC"
	    SHLIB_LD="/usr/ccs/bin/ld -G -z text"
	    LDFLAGS=""
    
	    do64bit_ok=no
	    if test "$do64bit" = "yes" ; then
	    arch=`isainfo`
	    if test "$arch" = "sparcv9 sparc" ; then
		if test "$CC" != "gcc" -a `$CC -v 2>&1 | grep -c gcc` = "0" ; then
		do64bit_ok=yes
		EXTRA_CFLAGS="-xarch=v9"
		LDFLAGS="-xarch=v9"
		else 
		AC_MSG_WARN("64bit mode not supported using GCC on $system")
		fi
	    else
		AC_MSG_WARN("64bit mode only supported sparcv9 system")
	    fi
	    fi
	    
	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
	    # symbols when dynamically loaded into tclsh.

	    SHLIB_LD_LIBS='${LIBS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
		LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
	    else
		LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
	    fi
	    ;;
	ULTRIX-4.*)
	    SHLIB_CFLAGS="-G 0"
	    SHLIB_SUFFIX=".a"
	    SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0"
	    SHLIB_LD_LIBS='${LIBS}'
	    DL_OBJS="tclLoadAout.o"
	    DL_LIBS=""
	    LDFLAGS="-Wl,-D,08000000"
	    LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    ;;
	UNIX_SV* | UnixWare-5*)
	    SHLIB_CFLAGS="-KPIC"
	    SHLIB_LD="cc -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    # Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
	    # that don't grok the -Bexport option.  Test that it does.
	    hold_ldflags=$LDFLAGS
	    AC_MSG_CHECKING(for ld accepts -Bexport flag)
	    LDFLAGS="${LDFLAGS} -Wl,-Bexport"
	    AC_TRY_LINK(, [int i;], found=yes, found=no)
	    LDFLAGS=$hold_ldflags
	    AC_MSG_RESULT($found)
	    if test $found = yes; then
	    LDFLAGS="-Wl,-Bexport"
	    else
	    LDFLAGS=""
	    fi
	    LD_SEARCH_FLAGS=""
	    ;;
    esac

    if test "$do64bit" = "yes" -a "$do64bit_ok" = "no" ; then
    AC_MSG_WARN("64bit support being disabled -- not supported on this platform")
    fi

    # Step 4: If pseudo-static linking is in use (see K. B. Kenny, "Dynamic
    # Loading for Tcl -- What Became of It?".  Proc. 2nd Tcl/Tk Workshop,
    # New Orleans, LA, Computerized Processes Unlimited, 1994), then we need
    # to determine which of several header files defines the a.out file
    # format (a.out.h, sys/exec.h, or sys/exec_aout.h).  At present, we
    # support only a file format that is more or less version-7-compatible. 
    # In particular,
    #	- a.out files must begin with `struct exec'.
    #	- the N_TXTOFF on the `struct exec' must compute the seek address
    #	  of the text segment
    #	- The `struct exec' must contain a_magic, a_text, a_data, a_bss
    #	  and a_entry fields.
    # The following compilation should succeed if and only if either sys/exec.h
    # or a.out.h is usable for the purpose.
    #
    # Note that the modified COFF format used on MIPS Ultrix 4.x is usable; the
    # `struct exec' includes a second header that contains information that
    # duplicates the v7 fields that are needed.

    if test "x$DL_OBJS" = "xtclLoadAout.o" ; then
	AC_MSG_CHECKING(sys/exec.h)
	AC_TRY_COMPILE([#include <sys/exec.h>],[
	    struct exec foo;
	    unsigned long seek;
	    int flag;
#if defined(__mips) || defined(mips)
	    seek = N_TXTOFF (foo.ex_f, foo.ex_o);
#else
	    seek = N_TXTOFF (foo);
#endif
	    flag = (foo.a_magic == OMAGIC);
	    return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
    ], tcl_ok=usable, tcl_ok=unusable)
	AC_MSG_RESULT($tcl_ok)
	if test $tcl_ok = usable; then
	    AC_DEFINE(USE_SYS_EXEC_H)
	else
	    AC_MSG_CHECKING(a.out.h)
	    AC_TRY_COMPILE([#include <a.out.h>],[
		struct exec foo;
		unsigned long seek;
		int flag;
#if defined(__mips) || defined(mips)
		seek = N_TXTOFF (foo.ex_f, foo.ex_o);
#else
		seek = N_TXTOFF (foo);
#endif
		flag = (foo.a_magic == OMAGIC);
		return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
	    ], tcl_ok=usable, tcl_ok=unusable)
	    AC_MSG_RESULT($tcl_ok)
	    if test $tcl_ok = usable; then
		AC_DEFINE(USE_A_OUT_H)
	    else
		AC_MSG_CHECKING(sys/exec_aout.h)
		AC_TRY_COMPILE([#include <sys/exec_aout.h>],[
		    struct exec foo;
		    unsigned long seek;
		    int flag;
#if defined(__mips) || defined(mips)
		    seek = N_TXTOFF (foo.ex_f, foo.ex_o);
#else
		    seek = N_TXTOFF (foo);
#endif
		    flag = (foo.a_midmag == OMAGIC);
		    return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
		], tcl_ok=usable, tcl_ok=unusable)
		AC_MSG_RESULT($tcl_ok)
		if test $tcl_ok = usable; then
		    AC_DEFINE(USE_SYS_EXEC_AOUT_H)
		else
		    DL_OBJS=""
		fi
	    fi
	fi
    fi

    # Step 5: disable dynamic loading if requested via a command-line switch.

    AC_ARG_ENABLE(load, [  --disable-load          disallow dynamic loading and "load" command],
	[tcl_ok=$enableval], [tcl_ok=yes])
    if test "$tcl_ok" = "no"; then
	DL_OBJS=""
    fi

    if test "x$DL_OBJS" != "x" ; then
	BUILD_DLTEST="\$(DLTEST_TARGETS)"
    else
	echo "Can't figure out how to do dynamic loading or shared libraries"
	echo "on this system."
	SHLIB_CFLAGS=""
	SHLIB_LD=""
	SHLIB_SUFFIX=""
	DL_OBJS="tclLoadNone.o"
	DL_LIBS=""
	LDFLAGS=""
	LD_SEARCH_FLAGS=""
	BUILD_DLTEST=""
    fi

    # If we're running gcc, then change the C flags for compiling shared
    # libraries to the right flags for gcc, instead of those for the
    # standard manufacturer compiler.

    if test "$DL_OBJS" != "tclLoadNone.o" ; then
	if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then
	    case $system in
		AIX-*)
		    ;;
		BSD/OS*)
		    ;;
		IRIX*)
		    ;;
		NetBSD-*|FreeBSD-*|OpenBSD-*)
		    ;;
		RISCos-*)
		    ;;
		ULTRIX-4.*)
		    ;;
		*)
		    SHLIB_CFLAGS="-fPIC"
		    ;;
	    esac
	fi
    fi

    if test "$SHARED_LIB_SUFFIX" = "" ; then
	SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}${SHLIB_SUFFIX}'
    fi
    if test "$UNSHARED_LIB_SUFFIX" = "" ; then
	UNSHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a'
    fi

    AC_SUBST(STLIB_LD)
    AC_SUBST(SHLIB_LD)
    AC_SUBST(SHLIB_CFLAGS)
    AC_SUBST(SHLIB_LDFLAGS)
    AC_SUBST(DL_LIBS)
    AC_SUBST(CFLAGS_DEBUG)
    AC_SUBST(CFLAGS_OPTIMIZE)
    AC_SUBST(LDFLAGS_DEBUG)
    AC_SUBST(LDFLAGS_OPTIMIZE)
])

#--------------------------------------------------------------------
# SC_SERIAL_PORT
#
#	Determine which interface to use to talk to the serial port.
#	Note that #include lines must begin in leftmost column for
#	some compilers to recognize them as preprocessor directives.
#
# Arguments:
#	none
#	
# Results:
#
#	Defines only one of the following vars:
#		USE_TERMIOS
#		USE_TERMIO
#		USE_SGTTY
#
#--------------------------------------------------------------------

AC_DEFUN(SC_SERIAL_PORT, [
    AC_MSG_CHECKING([termios vs. termio vs. sgtty])

    AC_TRY_RUN([
#include <termios.h>

main()
{
    struct termios t;
    if (tcgetattr(0, &t) == 0) {
	cfsetospeed(&t, 0);
	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
}], tk_ok=termios, tk_ok=no, tk_ok=no)

    if test $tk_ok = termios; then
	AC_DEFINE(USE_TERMIOS)
    else
	AC_TRY_RUN([
#include <termio.h>

main()
{
    struct termio t;
    if (ioctl(0, TCGETA, &t) == 0) {
	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
    }], tk_ok=termio, tk_ok=no, tk_ok=no)

    if test $tk_ok = termio; then
	AC_DEFINE(USE_TERMIO)
    else
	AC_TRY_RUN([
#include <sgtty.h>

main()
{
    struct sgttyb t;
    if (ioctl(0, TIOCGETP, &t) == 0) {
	t.sg_ospeed = 0;
	t.sg_flags |= ODDP | EVENP | RAW;
	return 0;
    }
    return 1;
}], tk_ok=sgtty, tk_ok=none, tk_ok=none)
    if test $tk_ok = sgtty; then
	AC_DEFINE(USE_SGTTY)
    fi
    fi
    fi
    AC_MSG_RESULT($tk_ok)
])

#--------------------------------------------------------------------
# SC_MISSING_POSIX_HEADERS
#
#	Supply substitutes for missing POSIX header files.  Special
#	notes:
#	    - stdlib.h doesn't define strtol, strtoul, or
#	      strtod insome versions of SunOS
#	    - some versions of string.h don't declare procedures such
#	      as strstr
#
# Arguments:
#	none
#	
# Results:
#
#	Defines some of the following vars:
#		NO_DIRENT_H
#		NO_ERRNO_H
#		NO_VALUES_H
#		NO_LIMITS_H
#		NO_STDLIB_H
#		NO_STRING_H
#		NO_SYS_WAIT_H
#		NO_DLFCN_H
#		HAVE_UNISTD_H
#		HAVE_SYS_PARAM_H
#
#		HAVE_STRING_H ?
#
#--------------------------------------------------------------------

AC_DEFUN(SC_MISSING_POSIX_HEADERS, [

    AC_MSG_CHECKING(dirent.h)
    AC_TRY_LINK([#include <sys/types.h>
#include <dirent.h>], [
#ifndef _POSIX_SOURCE
#   ifdef __Lynx__
	/*
	 * Generate compilation error to make the test fail:  Lynx headers
	 * are only valid if really in the POSIX environment.
	 */

	missing_procedure();
#   endif
#endif
DIR *d;
struct dirent *entryPtr;
char *p;
d = opendir("foobar");
entryPtr = readdir(d);
p = entryPtr->d_name;
closedir(d);
], tcl_ok=yes, tcl_ok=no)

    if test $tcl_ok = no; then
	AC_DEFINE(NO_DIRENT_H)
    fi

    AC_MSG_RESULT($tcl_ok)
    AC_CHECK_HEADER(errno.h, , AC_DEFINE(NO_ERRNO_H))
    AC_CHECK_HEADER(float.h, , AC_DEFINE(NO_FLOAT_H))
    AC_CHECK_HEADER(values.h, , AC_DEFINE(NO_VALUES_H))
    AC_CHECK_HEADER(limits.h, , AC_DEFINE(NO_LIMITS_H))
    AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
    AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
    AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
    AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0)
    if test $tcl_ok = 0; then
	AC_DEFINE(NO_STDLIB_H)
    fi
    AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0)
    AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0)
    AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0)

    # See also memmove check below for a place where NO_STRING_H can be
    # set and why.

    if test $tcl_ok = 0; then
	AC_DEFINE(NO_STRING_H)
    fi

    AC_CHECK_HEADER(sys/wait.h, , AC_DEFINE(NO_SYS_WAIT_H))
    AC_CHECK_HEADER(dlfcn.h, , AC_DEFINE(NO_DLFCN_H))

    # OS/390 lacks sys/param.h (and doesn't need it, by chance).

    AC_HAVE_HEADERS(unistd.h sys/param.h)

])

#--------------------------------------------------------------------
# SC_PATH_X
#
#	Locate the X11 header files and the X11 library archive.  Try
#	the ac_path_x macro first, but if it doesn't find the X stuff
#	(e.g. because there's no xmkmf program) then check through
#	a list of possible directories.  Under some conditions the
#	autoconf macro will return an include directory that contains
#	no include files, so double-check its result just to be safe.
#
# Arguments:
#	none
#	
# Results:
#
#	Sets the the following vars:
#		XINCLUDES
#		XLIBSW
#
#--------------------------------------------------------------------

AC_DEFUN(SC_PATH_X, [
    AC_PATH_X
    not_really_there=""
    if test "$no_x" = ""; then
	if test "$x_includes" = ""; then
	    AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes")
	else
	    if test ! -r $x_includes/X11/Intrinsic.h; then
		not_really_there="yes"
	    fi
	fi
    fi
    if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
	AC_MSG_CHECKING(for X11 header files)
	XINCLUDES="# no special path needed"
	AC_TRY_CPP([#include <X11/Intrinsic.h>], , XINCLUDES="nope")
	if test "$XINCLUDES" = nope; then
	    dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include"
	    for i in $dirs ; do
		if test -r $i/X11/Intrinsic.h; then
		    AC_MSG_RESULT($i)
		    XINCLUDES=" -I$i"
		    break
		fi
	    done
	fi
    else
	if test "$x_includes" != ""; then
	    XINCLUDES=-I$x_includes
	else
	    XINCLUDES="# no special path needed"
	fi
    fi
    if test "$XINCLUDES" = nope; then
	AC_MSG_RESULT(couldn't find any!)
	XINCLUDES="# no include files found"
    fi

    if test "$no_x" = yes; then
	AC_MSG_CHECKING(for X11 libraries)
	XLIBSW=nope
	dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib"
	for i in $dirs ; do
	    if test -r $i/libX11.a -o -r $i/libX11.so -o -r $i/libX11.sl; then
		AC_MSG_RESULT($i)
		XLIBSW="-L$i -lX11"
		x_libraries="$i"
		break
	    fi
	done
    else
	if test "$x_libraries" = ""; then
	    XLIBSW=-lX11
	else
	    XLIBSW="-L$x_libraries -lX11"
	fi
    fi
    if test "$XLIBSW" = nope ; then
	AC_CHECK_LIB(Xwindow, XCreateWindow, XLIBSW=-lXwindow)
    fi
    if test "$XLIBSW" = nope ; then
	AC_MSG_RESULT(couldn't find any!  Using -lX11.)
	XLIBSW=-lX11
    fi
])
#--------------------------------------------------------------------
# SC_BLOCKING_STYLE
#
#	The statements below check for systems where POSIX-style
#	non-blocking I/O (O_NONBLOCK) doesn't work or is unimplemented. 
#	On these systems (mostly older ones), use the old BSD-style
#	FIONBIO approach instead.
#
# Arguments:
#	none
#	
# Results:
#
#	Defines some of the following vars:
#		HAVE_SYS_IOCTL_H
#		HAVE_SYS_FILIO_H
#		USE_FIONBIO
#		O_NONBLOCK
#
#--------------------------------------------------------------------

AC_DEFUN(SC_BLOCKING_STYLE, [
    AC_CHECK_HEADERS(sys/ioctl.h)
    AC_CHECK_HEADERS(sys/filio.h)
    AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O])
    if test -f /usr/lib/NextStep/software_version; then
	system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
    else
	system=`uname -s`-`uname -r`
	if test "$?" -ne 0 ; then
	    system=unknown
	else
	    # Special check for weird MP-RAS system (uname returns weird
	    # results, and the version is kept in special file).
	
	    if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
		system=MP-RAS-`awk '{print $3}' /etc/.relid'`
	    fi
	    if test "`uname -s`" = "AIX" ; then
		system=AIX-`uname -v`.`uname -r`
	    fi
	fi
    fi
    case $system in
	# There used to be code here to use FIONBIO under AIX.  However, it
	# was reported that FIONBIO doesn't work under AIX 3.2.5.  Since
	# using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO
	# code (JO, 5/31/97).

	OSF*)
	    AC_DEFINE(USE_FIONBIO)
	    AC_MSG_RESULT(FIONBIO)
	    ;;
	SunOS-4*)
	    AC_DEFINE(USE_FIONBIO)
	    AC_MSG_RESULT(FIONBIO)
	    ;;
	ULTRIX-4.*)
	    AC_DEFINE(USE_FIONBIO)
	    AC_MSG_RESULT(FIONBIO)
	    ;;
	*)
	    AC_MSG_RESULT(O_NONBLOCK)
	    ;;
    esac
])

#--------------------------------------------------------------------
# SC_HAVE_VFORK
#
#	Check to see whether the system provides a vfork kernel call.
#	If not, then use fork instead.  Also, check for a problem with
#	vforks and signals that can cause core dumps if a vforked child
#	resets a signal handler.  If the problem exists, then use fork
#	instead of vfork.
#
# Arguments:
#	none
#	
# Results:
#
#	Defines some of the following vars:
#		vfork (=fork)
#
#--------------------------------------------------------------------

AC_DEFUN(SC_HAVE_VFORK, [
    AC_TYPE_SIGNAL()
    AC_CHECK_FUNC(vfork, tcl_ok=1, tcl_ok=0)
    if test "$tcl_ok" = 1; then
	AC_MSG_CHECKING([vfork/signal bug]);
	AC_TRY_RUN([
#include <stdio.h>
#include <signal.h>
#include <sys/wait.h>
int gotSignal = 0;
sigProc(sig)
    int sig;
{
    gotSignal = 1;
}
main()
{
    int pid, sts;
    (void) signal(SIGCHLD, sigProc);
    pid = vfork();
    if (pid <  0) {
	exit(1);
    } else if (pid == 0) {
	(void) signal(SIGCHLD, SIG_DFL);
	_exit(0);
    } else {
	(void) wait(&sts);
    }
    exit((gotSignal) ? 0 : 1);
}], tcl_ok=1, tcl_ok=0, tcl_ok=0)

	if test "$tcl_ok" = 1; then
	    AC_MSG_RESULT(ok)
	else
	    AC_MSG_RESULT([buggy, using fork instead])
	fi
    fi
    rm -f core
    if test "$tcl_ok" = 0; then
	AC_DEFINE(vfork, fork)
    fi
])

#--------------------------------------------------------------------
# SC_TIME_HANLDER
#
#	Checks how the system deals with time.h, what time structures
#	are used on the system, and what fields the structures have.
#
# Arguments:
#	none
#	
# Results:
#
#	Defines some of the following vars:
#		USE_DELTA_FOR_TZ
#		HAVE_TM_GMTOFF
#		HAVE_TM_TZADJ
#		HAVE_TIMEZONE_VAR
#
#--------------------------------------------------------------------

AC_DEFUN(SC_TIME_HANDLER, [
    AC_CHECK_HEADERS(sys/time.h)
    AC_HEADER_TIME
    AC_STRUCT_TIMEZONE

    AC_MSG_CHECKING([tm_tzadj in struct tm])
    AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
	    [AC_DEFINE(HAVE_TM_TZADJ)
	    AC_MSG_RESULT(yes)],
	    AC_MSG_RESULT(no))

    AC_MSG_CHECKING([tm_gmtoff in struct tm])
    AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
	    [AC_DEFINE(HAVE_TM_GMTOFF)
	    AC_MSG_RESULT(yes)],
	    AC_MSG_RESULT(no))

    #
    # Its important to include time.h in this check, as some systems
    # (like convex) have timezone functions, etc.
    #
    have_timezone=no
    AC_MSG_CHECKING([long timezone variable])
    AC_TRY_COMPILE([#include <time.h>],
	    [extern long timezone;
	    timezone += 1;
	    exit (0);],
	    [have_timezone=yes
	    AC_DEFINE(HAVE_TIMEZONE_VAR)
	    AC_MSG_RESULT(yes)],
	    AC_MSG_RESULT(no))

    #
    # On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
    #
    if test "$have_timezone" = no; then
    AC_MSG_CHECKING([time_t timezone variable])
    AC_TRY_COMPILE([#include <time.h>],
	    [extern time_t timezone;
	    timezone += 1;
	    exit (0);],
	    [AC_DEFINE(HAVE_TIMEZONE_VAR)
	    AC_MSG_RESULT(yes)],
	    AC_MSG_RESULT(no))
    fi

    #
    # AIX does not have a timezone field in struct tm. When the AIX bsd
    # library is used, the timezone global and the gettimeofday methods are
    # to be avoided for timezone deduction instead, we deduce the timezone
    # by comparing the localtime result on a known GMT value.
    #

    if test "`uname -s`" = "AIX" ; then
	AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes)
	if test $libbsd = yes; then
	    AC_DEFINE(USE_DELTA_FOR_TZ)
	fi
    fi
])

#--------------------------------------------------------------------
# SC_BUGGY_STRTOD
#
#	Under Solaris 2.4, strtod returns the wrong value for the
#	terminating character under some conditions.  Check for this
#	and if the problem exists use a substitute procedure
#	"fixstrtod" (provided by Tcl) that corrects the error.
#
# Arguments:
#	none
#	
# Results:
#
#	Might defines some of the following vars:
#		strtod (=fixstrtod)
#
#--------------------------------------------------------------------

AC_DEFUN(SC_BUGGY_STRTOD, [
    AC_CHECK_FUNC(strtod, tk_strtod=1, tk_strtod=0)
    if test "$tk_strtod" = 1; then
	AC_MSG_CHECKING([for Solaris 2.4 strtod bug])
	AC_TRY_RUN([
	    extern double strtod();
	    int main()
	    {
		char *string = "NaN";
		char *term;
		strtod(string, &term);
		if ((term != string) && (term[-1] == 0)) {
		    exit(1);
		}
		exit(0);
	    }], tk_ok=1, tk_ok=0, tk_ok=0)
	if test "$tk_ok" = 1; then
	    AC_MSG_RESULT(ok)
	else
	    AC_MSG_RESULT(buggy)
	    AC_DEFINE(strtod, fixstrtod)
	fi
    fi
])

#--------------------------------------------------------------------
# SC_TCL_LINK_LIBS
#
#	Search for the libraries needed to link the Tcl shell.
#	Things like the math library (-lm) and socket stuff (-lsocket vs.
#	-lnsl) are dealt with here.
#
# Arguments:
#	Requires the following vars to be set in the Makefile:
#		DL_LIBS
#		LIBS
#		MATH_LIBS
#	
# Results:
#
#	Subst's the following var:
#		TCL_LIBS
#		MATH_LIBS
#
#	Might append to the following vars:
#		LIBS
#
#	Might define the following vars:
#		HAVE_NET_ERRNO_H
#
#--------------------------------------------------------------------

AC_DEFUN(SC_TCL_LINK_LIBS, [
    #--------------------------------------------------------------------
    # On a few very rare systems, all of the libm.a stuff is
    # already in libc.a.  Set compiler flags accordingly.
    # Also, Linux requires the "ieee" library for math to work
    # right (and it must appear before "-lm").
    #--------------------------------------------------------------------

    AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm")
    AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"])

    #--------------------------------------------------------------------
    # On AIX systems, libbsd.a has to be linked in to support
    # non-blocking file IO.  This library has to be linked in after
    # the MATH_LIBS or it breaks the pow() function.  The way to
    # insure proper sequencing, is to add it to the tail of MATH_LIBS.
    # This library also supplies gettimeofday.
    #--------------------------------------------------------------------

    libbsd=no
    if test "`uname -s`" = "AIX" ; then
	AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes)
	if test $libbsd = yes; then
	    MATH_LIBS="$MATH_LIBS -lbsd"
	fi
    fi


    #--------------------------------------------------------------------
    # Interactive UNIX requires -linet instead of -lsocket, plus it
    # needs net/errno.h to define the socket-related error codes.
    #--------------------------------------------------------------------

    AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"])
    AC_CHECK_HEADER(net/errno.h, AC_DEFINE(HAVE_NET_ERRNO_H))

    #--------------------------------------------------------------------
    #	Check for the existence of the -lsocket and -lnsl libraries.
    #	The order here is important, so that they end up in the right
    #	order in the command line generated by make.  Here are some
    #	special considerations:
    #	1. Use "connect" and "accept" to check for -lsocket, and
    #	   "gethostbyname" to check for -lnsl.
    #	2. Use each function name only once:  can't redo a check because
    #	   autoconf caches the results of the last check and won't redo it.
    #	3. Use -lnsl and -lsocket only if they supply procedures that
    #	   aren't already present in the normal libraries.  This is because
    #	   IRIX 5.2 has libraries, but they aren't needed and they're
    #	   bogus:  they goof up name resolution if used.
    #	4. On some SVR4 systems, can't use -lsocket without -lnsl too.
    #	   To get around this problem, check for both libraries together
    #	   if -lsocket doesn't work by itself.
    #--------------------------------------------------------------------

    tcl_checkBoth=0
    AC_CHECK_FUNC(connect, tcl_checkSocket=0, tcl_checkSocket=1)
    if test "$tcl_checkSocket" = 1; then
	AC_CHECK_LIB(socket, main, LIBS="$LIBS -lsocket", tcl_checkBoth=1)
    fi
    if test "$tcl_checkBoth" = 1; then
	tk_oldLibs=$LIBS
	LIBS="$LIBS -lsocket -lnsl"
	AC_CHECK_FUNC(accept, tcl_checkNsl=0, [LIBS=$tk_oldLibs])
    fi
    AC_CHECK_FUNC(gethostbyname, , AC_CHECK_LIB(nsl, main,
	    [LIBS="$LIBS -lnsl"]))
    
    # Don't perform the eval of the libraries here because DL_LIBS
    # won't be set until we call SC_CONFIG_CFLAGS

    TCL_LIBS='${DL_LIBS} ${LIBS} ${MATH_LIBS}'
    AC_SUBST(TCL_LIBS)
    AC_SUBST(MATH_LIBS)
])

#------------------------------------------------------------------------
# SC_MAKE_LIB --
#
#	Generate a line that can be used to build a shared/unshared library
#	in a platform independent manner.
#
# Arguments:
#	none
#
#	Requires:
#
# Results:
#
#	Defines the following vars:
#		MAKE_LIB	Makefile rule for building a library
#		MAKE_SHARED_LIB	Makefile rule for building a shared library
#		MAKE_UNSHARED_LIB	Makefile rule for building a static
#				library
#------------------------------------------------------------------------

AC_DEFUN(SC_MAKE_LIB, [
    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    if test "${CC-cc}" = "cl"; then
		MAKE_STATIC_LIB="\${STLIB_LD} -out:\[$]@ \$(\[$]@_OBJECTS) "
		MAKE_SHARED_LIB="\${SHLIB_LD} \${SHLIB_LDFLAGS} \${SHLIB_LD_LIBS} \$(LDFLAGS) -out:\[$]@ \$(\[$]@_OBJECTS) "
	    fi
	    ;;
	*)
	    MAKE_STATIC_LIB="\${STLIB_LD} \[$]@ \$(\[$]@_OBJECTS)"
	    MAKE_SHARED_LIB="\${SHLIB_LD} -o \[$]@ \$(\[$]@_OBJECTS) \${SHLIB_LDFLAGS} \${SHLIB_LD_LIBS}"
	    ;;
    esac

    if test "${SHARED_BUILD}" = "1" ; then
	MAKE_LIB=${MAKE_SHARED_LIB}
    else
	MAKE_LIB=${MAKE_STATIC_LIB}
    fi

    AC_SUBST(MAKE_LIB)
    AC_SUBST(MAKE_SHARED_LIB)
    AC_SUBST(MAKE_STATIC_LIB)
])

#------------------------------------------------------------------------
# SC_LIB_SPEC --
#
#	Compute the name of an existing object library located in libdir
#	from the given base name and produce the appropriate linker flags.
#
# Arguments:
#	basename	The base name of the library without version
#			numbers, extensions, or "lib" prefixes.
#	extra_dir	Extra directory in which to search for the
#			library.  This location is used first, then
#			$prefix/$exec-prefix, then some defaults.
#
# Requires:
#	CYGPATH		command used to generate native style paths
#
# Results:
#
#	Defines the following vars:
#		${basename}_LIB_NAME	The computed library name.
#		${basename}_LIB_SPEC	The computed linker flags.
#------------------------------------------------------------------------

AC_DEFUN(SC_LIB_SPEC, [
    AC_MSG_CHECKING(for $1 library)

    # Look in exec-prefix and prefix for the library.  If neither of
    # these were specified, look in libdir.  It doesn't matter if libdir
    # wasn't specified since a search in the unspecified directory will
    # fail (NONE/lib)

    if test x"${exec_prefix}" != x"NONE" ; then
	sc_lib_name_dir="${exec_prefix}/lib"
    elif test x"${prefix}" != "NONE" ; then
	sc_lib_name_dir="${prefix}/lib"
    else
	eval "sc_lib_name_dir=${libdir}"
    fi

    if test x"$2" != x ; then
	sc_extra_lib_dir=$2
    else
	sc_extra_lib_dir=NONE
    fi

    for i in \
	    `ls -dr ${sc_extra_lib_dir}/$1[[0-9]]*.lib 2>/dev/null ` \
	    `ls -dr ${sc_extra_lib_dir}/lib$1[[0-9]]* 2>/dev/null ` \
	    `ls -dr ${sc_lib_name_dir}/$1[[0-9]]*.lib 2>/dev/null ` \
	    `ls -dr ${sc_lib_name_dir}/lib$1[[0-9]]* 2>/dev/null ` \
	    `ls -dr /usr/lib/$1[[0-9]]*.lib 2>/dev/null ` \
	    `ls -dr /usr/lib/lib$1[[0-9]]* 2>/dev/null ` \
	    `ls -dr /usr/local/lib/$1[[0-9]]*.lib 2>/dev/null ` \
	    `ls -dr /usr/local/lib/lib$1[[0-9]]* 2>/dev/null ` ; do
	if test -f "$i" ; then

	    sc_lib_name_dir=`dirname $i`
	    $1_LIB_NAME=`basename $i`
	    $1_LIB_PATH_NAME=$i
	    break
	fi
    done

    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    $1_LIB_SPEC=\"`${CYGPATH} ${$1_LIB_PATH_NAME}`\"
	    ;;
	*)
	    # Strip off the leading "lib" and trailing ".a" or ".so"

	    sc_lib_name_lib=`echo ${$1_LIB_NAME}|sed -e 's/^lib//' -e 's/\.[[^.]]*$//'`
	    $1_LIB_SPEC="-L${sc_lib_name_dir} -l${sc_lib_name_lib}"
	    ;;
    esac
    if test "x$1_LIB_NAME" = x ; then
	AC_MSG_ERROR(not found)
    else
	AC_MSG_RESULT(${$1_LIB_SPEC})
    fi
    AC_SUBST($1_LIB_SPEC)
    AC_SUBST($1_LIB_NAME)
])

#------------------------------------------------------------------------
# SC_PRIVATE_TCL_HEADERS --
#
#	Locate the private Tcl include files
#
# Arguments:
#
#	Requires:
#		TCL_SRC_DIR	Assumes that SC_LOAD_TCLCONFIG has
#				 already been called.
#
# Results:
#
#	Substs the following vars:
#		TCL_TOP_DIR_NATIVE
#		TCL_GENERIC_DIR_NATIVE
#		TCL_UNIX_DIR_NATIVE
#		TCL_WIN_DIR_NATIVE
#		TCL_BMAP_DIR_NATIVE
#		TCL_TOOL_DIR_NATIVE
#		TCL_PLATFORM_DIR_NATIVE
#		TCL_BIN_DIR_NATIVE
#		TCL_INCLUDES
#------------------------------------------------------------------------

AC_DEFUN(SC_PRIVATE_TCL_HEADERS, [
    AC_MSG_CHECKING(for Tcl private include files)

    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    TCL_TOP_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/..`\"
	    TCL_GENERIC_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../generic`\"
	    TCL_UNIX_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../unix`\"
	    TCL_WIN_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../win`\"
	    TCL_BMAP_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../bitmaps`\"
	    TCL_TOOL_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../tools`\"
	    TCL_COMPAT_DIR_NATIVE=\"`${CYGPATH} ${TCL_SRC_DIR}/../compat`\"
	    TCL_PLATFORM_DIR_NATIVE=${TCL_WIN_DIR_NATIVE}
	;;
	*)
	    TCL_TOP_DIR_NATIVE='$(TCL_SRC_DIR)'
	    TCL_GENERIC_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/generic'
	    TCL_UNIX_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/unix'
	    TCL_WIN_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/win'
	    TCL_BMAP_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/bitmaps'
	    TCL_TOOL_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/tools'
	    TCL_COMPAT_DIR_NATIVE='$(TCL_TOP_DIR_NATIVE)/compat'
	    TCL_PLATFORM_DIR_NATIVE=${TCL_UNIX_DIR_NATIVE}
	;;
    esac

    AC_SUBST(TCL_TOP_DIR_NATIVE)
    AC_SUBST(TCL_GENERIC_DIR_NATIVE)
    AC_SUBST(TCL_UNIX_DIR_NATIVE)
    AC_SUBST(TCL_WIN_DIR_NATIVE)
    AC_SUBST(TCL_BMAP_DIR_NATIVE)
    AC_SUBST(TCL_TOOL_DIR_NATIVE)
    AC_SUBST(TCL_PLATFORM_DIR_NATIVE)

    TCL_INCLUDES="-I${TCL_GENERIC_DIR_NATIVE} -I${TCL_PLATFORM_DIR_NATIVE}"
    AC_SUBST(TCL_INCLUDES)
    AC_MSG_RESULT(Using srcdir found in tclConfig.sh)
])

#------------------------------------------------------------------------
# SC_PUBLIC_TCL_HEADERS --
#
#	Locate the installed public Tcl header files
#
# Arguments:
#	None.
#
# Requires:
#	CYGPATH must be set
#
# Results:
#
#	Adds a --with-tclinclude switch to configure.
#	Result is cached.
#
#	Substs the following vars:
#		TCL_INCLUDES
#------------------------------------------------------------------------

AC_DEFUN(SC_PUBLIC_TCL_HEADERS, [
    AC_MSG_CHECKING(for Tcl public headers)

    AC_ARG_WITH(tclinclude, [ --with-tclinclude      directory containing the public Tcl header files.], with_tclinclude=${withval})

    if test x"${with_tclinclude}" != x ; then
	if test -f "${with_tclinclude}/tcl.h" ; then
	    ac_cv_c_tclh=${with_tclinclude}
	else
	    AC_MSG_ERROR([${with_tclinclude} directory does not contain Tcl public header file tcl.h])
	fi
    else
	AC_CACHE_VAL(ac_cv_c_tclh, [
	    # Use the value from --with-tclinclude, if it was given

	    if test x"${with_tclinclude}" != x ; then
		ac_cv_c_tclh=${with_tclinclude}
	    else
		# Check in the includedir, if --prefix was specified

		eval "temp_includedir=${includedir}"
		for i in \
			`ls -d ${temp_includedir} 2>/dev/null` \
			/usr/local/include /usr/include ; do
		    if test -f "$i/tcl.h" ; then
			ac_cv_c_tclh=$i
			break
		    fi
		done
	    fi
	])
    fi

    # Print a message based on how we determined the include path

    if test x"${ac_cv_c_tclh}" = x ; then
	AC_MSG_ERROR(tcl.h not found.  Please specify its location with --with-tclinclude)
    else
	AC_MSG_RESULT(${ac_cv_c_tclh})
    fi

    # Convert to a native path and substitute into the output files.

    INCLUDE_DIR_NATIVE=`${CYGPATH} ${ac_cv_c_tclh}`

    TCL_INCLUDES=-I\"${INCLUDE_DIR_NATIVE}\"

    AC_SUBST(TCL_INCLUDES)
])

#------------------------------------------------------------------------
# SC_PRIVATE_TK_HEADERS --
#
#	Locate the private Tk include files
#
# Arguments:
#
#	Requires:
#		TK_SRC_DIR	Assumes that SC_LOAD_TKCONFIG has
#				 already been called.
#
# Results:
#
#	Substs the following vars:
#		TK_INCLUDES
#------------------------------------------------------------------------

AC_DEFUN(SC_PRIVATE_TK_HEADERS, [
    AC_MSG_CHECKING(for Tk private include files)

    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    TK_UNIX_DIR_NATIVE=\"`${CYGPATH} ${TK_SRC_DIR}/../unix`\"
	    TK_WIN_DIR_NATIVE=\"`${CYGPATH} ${TK_SRC_DIR}/../win`\"
	    TK_GENERIC_DIR_NATIVE=\"`${CYGPATH} ${TK_SRC_DIR}/../generic`\"
	    TK_XLIB_DIR_NATIVE=\"`${CYGPATH} ${TK_SRC_DIR}/../xlib`\"
	    TK_PLATFORM_DIR_NATIVE=${TK_WIN_DIR_NATIVE}

	    TK_INCLUDES="-I${TK_GENERIC_DIR_NATIVE} -I${TK_PLATFORM_DIR_NATIVE} -I${TK_XLIB_DIR_NATIVE}"
	;;
	*)
	    TK_GENERIC_DIR_NATIVE='$(TK_TOP_DIR_NATIVE)/generic'
	    TK_UNIX_DIR_NATIVE='$(TK_TOP_DIR_NATIVE)/unix'
	    TK_WIN_DIR_NATIVE='$(TK_TOP_DIR_NATIVE)/win'
	    TK_PLATFORM_DIR_NATIVE=${TK_UNIX_DIR_NATIVE}

	    TK_INCLUDES="-I${TK_GENERIC_DIR_NATIVE} -I${TK_PLATFORM_DIR_NATIVE}"
	;;
    esac

    AC_SUBST(TK_UNIX_DIR_NATIVE)
    AC_SUBST(TK_WIN_DIR_NATIVE)
    AC_SUBST(TK_GENERIC_DIR_NATIVE)
    AC_SUBST(TK_XLIB_DIR_NATIVE)
    AC_SUBST(TK_PLATFORM_DIR_NATIVE)

    AC_SUBST(TK_INCLUDES)
    AC_MSG_RESULT(Using srcdir found in tkConfig.sh)
])

#------------------------------------------------------------------------
# SC_PUBLIC_TK_HEADERS --
#
#	Locate the installed public Tk header files
#
# Arguments:
#	None.
#
# Requires:
#	CYGPATH must be set
#
# Results:
#
#	Adds a --with-tkinclude switch to configure.
#	Result is cached.
#
#	Substs the following vars:
#		TK_INCLUDES
#------------------------------------------------------------------------

AC_DEFUN(SC_PUBLIC_TK_HEADERS, [
    AC_MSG_CHECKING(for Tk public headers)

    AC_ARG_WITH(tkinclude, [ --with-tkinclude      directory containing the public Tk header files.], with_tkinclude=${withval})

    if test x"${with_tkinclude}" != x ; then
	if test -f "${with_tkinclude}/tk.h" ; then
	    ac_cv_c_tkh=${with_tkinclude}
	else
	    AC_MSG_ERROR([${with_tkinclude} directory does not contain Tk public header file tk.h])
	fi
    else
	AC_CACHE_VAL(ac_cv_c_tkh, [
	    # Use the value from --with-tkinclude, if it was given

	    if test x"${with_tkinclude}" != x ; then
		ac_cv_c_tkh=${with_tkinclude}
	    else
		# Check in the includedir, if --prefix was specified

		eval "temp_includedir=${includedir}"
		for i in \
			`ls -d ${temp_includedir} 2>/dev/null` \
			/usr/local/include /usr/include ; do
		    if test -f "$i/tk.h" ; then
			ac_cv_c_tkh=$i
			break
		    fi
		done
	    fi
	])
    fi

    # Print a message based on how we determined the include path

    if test x"${ac_cv_c_tkh}" = x ; then
	AC_MSG_ERROR(tk.h not found.  Please specify its location with --with-tkinclude)
    else
	AC_MSG_RESULT(${ac_cv_c_tkh})
    fi

    # Convert to a native path and substitute into the output files.

    INCLUDE_DIR_NATIVE=`${CYGPATH} ${ac_cv_c_tkh}`

    TK_INCLUDES=-I\"${INCLUDE_DIR_NATIVE}\"

    AC_SUBST(TK_INCLUDES)
])

#------------------------------------------------------------------------
# SC_SIMPLE_EXEEXT
#	Select the executable extension based on the host type.  This
#	is a lightweight replacement for AC_EXEEXT that doesn't require
#	a compiler.
#
# Arguments
#	none
#
# Results
#	Subst's the following values:
#		EXEEXT
#------------------------------------------------------------------------

AC_DEFUN(SC_SIMPLE_EXEEXT, [
    AC_MSG_CHECKING(executable extension based on host type)

    case "`uname -s`" in
	*win32* | *WIN32* | *CYGWIN_NT*)
	    EXEEXT=".exe"
	;;
	*)
	    EXEEXT=""
	;;
    esac

    AC_MSG_RESULT(${EXEEXT})
    AC_SUBST(EXEEXT)
])

#------------------------------------------------------------------------
# SC_PROG_TCLSH
#	Locate a tclsh shell in the following directories:
#		${exec_prefix}/bin
#		${prefix}/bin
#		${TCL_BIN_DIR}
#		${TCL_BIN_DIR}/../bin
#		${PATH}
#
# Arguments
#	none
#
# Results
#	Subst's the following values:
#		TCLSH_PROG
#------------------------------------------------------------------------

AC_DEFUN(SC_PROG_TCLSH, [
    AC_MSG_CHECKING([for tclsh])

    AC_CACHE_VAL(ac_cv_path_tclsh, [
	search_path=`echo ${exec_prefix}/bin:${prefix}/bin:${TCL_BIN_DIR}:${TCL_BIN_DIR}/../bin:${PATH} | sed -e 's/:/ /g'`
	for dir in $search_path ; do
	    for j in `ls -r $dir/tclsh[[8-9]]* 2> /dev/null` \
		    `ls -r $dir/tclsh* 2> /dev/null` ; do
		if test x"$ac_cv_path_tclsh" = x ; then
		    if test -f "$j" ; then
			ac_cv_path_tclsh=$j
			break
		    fi
		fi
	    done
	done
    ])

    if test -f "$ac_cv_path_tclsh" ; then
	TCLSH_PROG=$ac_cv_path_tclsh
	AC_MSG_RESULT($TCLSH_PROG)
    else
	AC_MSG_ERROR(No tclsh found in PATH:  $search_path)
    fi
    AC_SUBST(TCLSH_PROG)
])

#------------------------------------------------------------------------
# SC_PROG_WISH
#	Locate a wish shell in the following directories:
#		${exec_prefix}/bin
#		${prefix}/bin
#		${TCL_BIN_DIR}
#		${TCL_BIN_DIR}/../bin
#		${PATH}
#
# Arguments
#	none
#
# Results
#	Subst's the following values:
#		WISH_PROG
#------------------------------------------------------------------------

AC_DEFUN(SC_PROG_WISH, [
    AC_MSG_CHECKING([for wish])

    AC_CACHE_VAL(ac_cv_path_wish, [
	search_path=`echo ${exec_prefix}/bin:${prefix}/bin:${TCL_BIN_DIR}:${TCL_BIN_DIR}/../bin:${PATH} | sed -e 's/:/ /g'`
	for dir in $search_path ; do
	    for j in `ls -r $dir/wish[[8-9]]* 2> /dev/null` \
		    `ls -r $dir/wish* 2> /dev/null` ; do
		if test x"$ac_cv_path_wish" = x ; then
		    if test -f "$j" ; then
			ac_cv_path_wish=$j
			break
		    fi
		fi
	    done
	done
    ])

    if test -f "$ac_cv_path_wish" ; then
	WISH_PROG=$ac_cv_path_wish
	AC_MSG_RESULT($WISH_PROG)
    else
	AC_MSG_ERROR(No wish found in PATH:  $search_path)
    fi
    AC_SUBST(WISH_PROG)
])

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