Tcl Source Code

I want to use the command 'memory' to see the memory allocations in Tcl interpreter. To achieve this, i have called the function Tcl_InitMemory() once after creating the Tcl interpreter with the interpreter handle as an argument(created using Tcl_CreateInterp() function). 
Will this suffice, to avail the memory command on an Interpreter ? or should i implement anything else ?
Please help me with the required information.

I compiled the Tcl libraries with TCL_MEM_DEBUG symbol by configuring using below command.

./configure --prefix=/scratch/sakthi/Tcl_8.4.9_debug --enable-symbols=all

I found a library with name libtcl8.4g.so. Then i wrote a C program which uses the debug shared object to invoke Tcl 'memory' command. The program failed to execute the 'memory' command.
C program
---------
#include <stdio.h>
#include <tcl.h>
#include <stdio.h>
#include <tcl.h>
int main()
{
 int x=0;
 Tcl_Interp* a;
 a =  Tcl_CreateInterp();
 Tcl_Init(a);
 Tcl_InitMemory(a);
 if (a == NULL)
 printf("Interpreter creation Failed \n");
 x = Tcl_Eval(a,(char *)"memory info");
 Tcl_DeleteInterp(a);
 printf("DeleteInterpreter x=%d \n",x);
}
---------------------
Compilation flags on solaris10 server

/opt/Studio11/SUNWspro/bin/CC -L/scratch/sakthi/Tcl_8.4.9_debug/lib -ltcl8.4g -I/scratch/sakthi/Tcl_8.4.9_debug/include  Tcl_inter_problem.c -o Tcl_inter_problem
----------------------
Output of the program

DeleteInterpreter x=1  // Tcl_Eval function returns 1 (TCL_ERROR), unable to execute memory command.

Am i doing anything wrong?

I have attached the Makefile which was generated by configure script.

Thank yous so much for your answer. I will try the same with my program.

For reference, the definition of Tcl_InitMemory in mem-debug mode is this:

void
Tcl_InitMemory(
    Tcl_Interp *interp)         /* Interpreter in which commands should be
                                 * added */
{
    TclInitDbCkalloc();
    Tcl_CreateCommand(interp, "memory", MemoryCmd, NULL, NULL);
    Tcl_CreateCommand(interp, "checkmem", CheckmemCmd, NULL, NULL);
}

The whole Tcl library must be compiled with TCL_MEM_DEBUG defined, in order for the tracking hooks to be put in the memory management code at all. It's also recommended that you recompile your code with that symbol defined when using the Tcl library (so allocations via Tcl's APIs from your code also get tracked), though it shouldn't strictly be necessary.

The supported way of doing this is by passing --enable-symbols=mem to configure when building Tcl. (This implies --enable-symbols, and is implied by --enable-symbols=all, which turns on other types of debugging as well.)

This is in addition to calling Tcl_InitMemory. When TCL_MEM_DEBUG is not defined when building Tcl, Tcl_InitMemory is an empty function, a no-op.