Tcl Source Code

received reports that Tcl 8.4.9
does not build on AIX:

...

rm -f libtcl8.4.so
        /gu2/blomeier/tcltk/tcl8.4.9/unix/ldAix /bin/ld
-bhalt:4 -bM:SRE
-bE:lib.exp -H512 -T512 -bnoentry  -o libtcl8.4.so 
regcomp.o regexec.o
regfree.o regerror.o tclAlloc.o  tclAsync.o tclBasic.o
tclBinary.o
tclCkalloc.o tclClock.o tclCmdAH.o tclCmdIL.o
tclCmdMZ.o  tclCompCmds.o
tclCompExpr.o tclCompile.o tclDate.o tclEncoding.o 
tclEnv.o tclEvent.o
tclExecute.o tclFCmd.o tclFileName.o tclGet.o 
tclHash.o tclHistory.o
tclIndexObj.o tclInterp.o tclIO.o tclIOCmd.o  tclIOGT.o
tclIOSock.o
tclIOUtil.o tclLink.o tclListObj.o  tclLiteral.o
tclLoad.o tclMain.o
tclNamesp.o tclNotify.o  tclObj.o tclPanic.o tclParse.o
tclParseExpr.o
tclPipe.o  tclPkg.o tclPosixStr.o tclPreserve.o
tclProc.o tclRegexp.o
tclResolve.o tclResult.o tclScan.o tclStringObj.o
tclThread.o
tclThreadAlloc.o tclThreadJoin.o tclStubInit.o
tclStubLib.o  tclTimer.o
tclUtf.o tclUtil.o tclVar.o tclUnixChan.o
tclUnixEvent.o tclUnixFCmd.o
tclUnixFile.o tclUnixPipe.o tclUnixSock.o 
tclUnixTime.o tclUnixInit.o
tclUnixThrd.o  tclUnixNotfy.o   tclLoadDl.o  -ldl  -lc -lm
-L/gu2/blomeier/lib
noDotA="libtcl8.4.so"
ld: 0711-317 ERROR: Undefined symbol: .__floatdidf
ld: 0711-317 ERROR: Undefined symbol: .__moddi3
ld: 0711-317 ERROR: Undefined symbol: .__ashldi3
ld: 0711-317 ERROR: Undefined symbol: .__ashrdi3
ld: 0711-317 ERROR: Undefined symbol: .__divdi3
ld: 0711-317 ERROR: Undefined symbol: .__fixdfdi
ld: 0711-345 Use the -bloadmap or -bnoquiet option to
obtain more
information.

I'm advising they try the xlc compiler
instead, but since gcc is the default
choice, this is poor out-of-box experience.

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An AIX/gcc user confirms this patch
allows Tcl to build.

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This has since been commited to 8.4 branch and head.

File Added - 120068: 1100383.patch

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Here's another patch that 
1) applies clean to Tcl 8.4.9; and
2) includes the changes to
unix/configure that an autoconf-2.13
run generates, so that the patch
is useful even to those who might
not have (experience with) autoconf.

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How do I go about implementing this patch?

File Added - 118234: aix-gcc.patch

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Attached is the patch that fixes this, and simplifies the
AIX stuff in general.  Test this out.  It's against 8.4 -
8.5 would need a slightly separate change (since it uses ac
2.5x).

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thanks for the advice, but the point
is that Tcl should get this right
out of the box in the first place.

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Either compile with 'xlc', or use 'gcc -shared' to link;
either way will probably work.