* win/Makefile.in (CFLAGS):

	* unix/Makefile.in (MEM_DEBUG_FLAGS): Added usage of @MEM_DEBUG_FLAGS@.
	* win/configure.in:
	* unix/configure.in: Added usage of SC_ENABLE_MEMDEBUG.
	* win/tcl.m4:
	* unix/tcl.m4: Added macro SC_ENABLE_MEMDEBUG. Allows a user of
	  configure to (de)activate memory validation and debugging
	  (TCL_MEM_DEBUG). No need to modify the makefile anymore.

4 files changed, 106 insertions, 46 deletions

diff --git a/win/Makefile.in b/win/Makefile.in
index 0597d03..940e106 100644
--- a/win/Makefile.in
+++ b/win/Makefile.in
@@ -5,7 +5,7 @@
 # "autoconf" program (constructs like "@foo@" will get replaced in the
 # actual Makefile.
 #
-# RCS: @(#) $Id: Makefile.in,v 1.64 2002/08/20 15:33:34 dgp Exp $
+# RCS: @(#) $Id: Makefile.in,v 1.65 2002/08/22 00:52:33 andreas_kupries Exp $
 
 VERSION = @TCL_VERSION@
 
@@ -85,7 +85,7 @@ CFLAGS_OPTIMIZE	= @CFLAGS_OPTIMIZE@
 #CFLAGS = 		$(CFLAGS_DEBUG)
 #CFLAGS = 		$(CFLAGS_OPTIMIZE)
 #CFLAGS = 		$(CFLAGS_DEBUG) $(CFLAGS_OPTIMIZE)
-CFLAGS = 		@CFLAGS@ @CFLAGS_DEFAULT@
+CFLAGS = 		@CFLAGS@ @CFLAGS_DEFAULT@ @MEM_DEBUG_FLAGS@
 
 # To enable compilation debugging reverse the comment characters on
 # one of the following lines.
diff --git a/win/configure b/win/configure
index 83b3687..1f60604 100755
--- a/win/configure
+++ b/win/configure
@@ -19,6 +19,8 @@ ac_help="$ac_help
   --enable-64bit          enable 64bit support (where applicable)"
 ac_help="$ac_help
   --enable-symbols        build with debugging symbols [--disable-symbols]"
+ac_help="$ac_help
+  --enable-memdebug       build with memory debugging [--disable-memdebug]"
 
 # Initialize some variables set by options.
 # The variables have the same names as the options, with
@@ -575,7 +577,7 @@ 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:579: checking for $ac_word" >&5
+echo "configure:581: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -605,7 +607,7 @@ if test -z "$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:609: checking for $ac_word" >&5
+echo "configure:611: 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
@@ -656,7 +658,7 @@ fi
       # 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:660: checking for $ac_word" >&5
+echo "configure:662: 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
@@ -688,7 +690,7 @@ fi
 fi
 
 echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:692: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
+echo "configure:694: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -699,12 +701,12 @@ cross_compiling=$ac_cv_prog_cc_cross
 
 cat > conftest.$ac_ext << EOF
 
-#line 703 "configure"
+#line 705 "configure"
 #include "confdefs.h"
 
 main(){return(0);}
 EOF
-if { (eval echo configure:708: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:710: \"$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
@@ -730,12 +732,12 @@ 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""... $ac_c" 1>&6
-echo "configure:734: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
+echo "configure:736: checking whether the C compiler ($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""... $ac_c" 1>&6
-echo "configure:739: checking whether we are using GNU C" >&5
+echo "configure:741: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -744,7 +746,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:748: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:750: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -763,7 +765,7 @@ ac_test_CFLAGS="${CFLAGS+set}"
 ac_save_CFLAGS="$CFLAGS"
 CFLAGS=
 echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:767: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:769: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -806,7 +808,7 @@ if test "${GCC}" = "yes" ; then
     # Extract the first word of "ar", so it can be a program name with args.
 set dummy ar; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:810: checking for $ac_word" >&5
+echo "configure:812: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -835,7 +837,7 @@ fi
     # 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:839: checking for $ac_word" >&5
+echo "configure:841: 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
@@ -864,7 +866,7 @@ fi
     # Extract the first word of "windres", so it can be a program name with args.
 set dummy windres; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:868: checking for $ac_word" >&5
+echo "configure:870: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -897,7 +899,7 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:901: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:903: 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
@@ -929,12 +931,12 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for Cygwin environment""... $ac_c" 1>&6
-echo "configure:933: checking for Cygwin environment" >&5
+echo "configure:935: checking for Cygwin environment" >&5
 if eval "test \"`echo '$''{'ac_cv_cygwin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 938 "configure"
+#line 940 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -945,7 +947,7 @@ int main() {
 return __CYGWIN__;
 ; return 0; }
 EOF
-if { (eval echo configure:949: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:951: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_cygwin=yes
 else
@@ -969,7 +971,7 @@ fi
 
 
 echo $ac_n "checking for SEH support in compiler""... $ac_c" 1>&6
-echo "configure:973: checking for SEH support in compiler" >&5
+echo "configure:975: checking for SEH support in compiler" >&5
 if eval "test \"`echo '$''{'tcl_cv_seh'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -977,7 +979,7 @@ else
   tcl_cv_seh=no
 else
   cat > conftest.$ac_ext <<EOF
-#line 981 "configure"
+#line 983 "configure"
 #include "confdefs.h"
 
 #define WIN32_LEAN_AND_MEAN
@@ -996,7 +998,7 @@ int main(int argc, char** argv) {
 }
 
 EOF
-if { (eval echo configure:1000: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1002: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   tcl_cv_seh=yes
 else
@@ -1024,13 +1026,13 @@ fi
 #--------------------------------------------------------------------
 
 echo $ac_n "checking for object suffix""... $ac_c" 1>&6
-echo "configure:1028: checking for object suffix" >&5
+echo "configure:1030: checking for object suffix" >&5
 if eval "test \"`echo '$''{'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:1034: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1036: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   for ac_file in conftest.*; do
     case $ac_file in
     *.c) ;;
@@ -1048,19 +1050,19 @@ OBJEXT=$ac_cv_objext
 ac_objext=$ac_cv_objext
 
 echo $ac_n "checking for mingw32 environment""... $ac_c" 1>&6
-echo "configure:1052: checking for mingw32 environment" >&5
+echo "configure:1054: checking for mingw32 environment" >&5
 if eval "test \"`echo '$''{'ac_cv_mingw32'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1057 "configure"
+#line 1059 "configure"
 #include "confdefs.h"
 
 int main() {
 return __MINGW32__;
 ; return 0; }
 EOF
-if { (eval echo configure:1064: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1066: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_mingw32=yes
 else
@@ -1079,7 +1081,7 @@ test "$ac_cv_mingw32" = yes && MINGW32=yes
 
 
 echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
-echo "configure:1083: checking for executable suffix" >&5
+echo "configure:1085: checking for executable suffix" >&5
 if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1089,7 +1091,7 @@ else
   rm -f conftest*
   echo 'int main () { return 0; }' > conftest.$ac_ext
   ac_cv_exeext=
-  if { (eval echo configure:1093: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  if { (eval echo configure:1095: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
     for file in conftest.*; do
       case $file in
       *.c | *.o | *.obj) ;;
@@ -1116,7 +1118,7 @@ ac_exeext=$EXEEXT
 
 
     echo $ac_n "checking for building with threads""... $ac_c" 1>&6
-echo "configure:1120: checking for building with threads" >&5
+echo "configure:1122: checking for building with threads" >&5
     # Check whether --enable-threads or --disable-threads was given.
 if test "${enable_threads+set}" = set; then
   enableval="$enable_threads"
@@ -1147,7 +1149,7 @@ EOF
 
 
     echo $ac_n "checking how to build libraries""... $ac_c" 1>&6
-echo "configure:1151: checking how to build libraries" >&5
+echo "configure:1153: checking how to build libraries" >&5
     # Check whether --enable-shared or --disable-shared was given.
 if test "${enable_shared+set}" = set; then
   enableval="$enable_shared"
@@ -1188,7 +1190,7 @@ EOF
     # Step 0: Enable 64 bit support?
 
     echo $ac_n "checking if 64bit support is requested""... $ac_c" 1>&6
-echo "configure:1192: checking if 64bit support is requested" >&5
+echo "configure:1194: checking if 64bit support is requested" >&5
     # Check whether --enable-64bit or --disable-64bit was given.
 if test "${enable_64bit+set}" = set; then
   enableval="$enable_64bit"
@@ -1205,7 +1207,7 @@ fi
     # Extract the first word of "cygpath", so it can be a program name with args.
 set dummy cygpath; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1209: checking for $ac_word" >&5
+echo "configure:1211: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CYGPATH'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1242,7 +1244,7 @@ fi
     # set various compiler flags depending on whether we are using gcc or cl
 
     echo $ac_n "checking compiler flags""... $ac_c" 1>&6
-echo "configure:1246: checking compiler flags" >&5
+echo "configure:1248: checking compiler flags" >&5
     if test "${GCC}" = "yes" ; then
 	if test "$do64bit" = "yes" ; then
 	    echo "configure: warning: "64bit mode not supported with GCC on Windows"" 1>&2
@@ -1432,7 +1434,7 @@ echo "configure:1246: checking compiler flags" >&5
 
 
     echo $ac_n "checking for build with symbols""... $ac_c" 1>&6
-echo "configure:1436: checking for build with symbols" >&5
+echo "configure:1438: checking for build with symbols" >&5
     # Check whether --enable-symbols or --disable-symbols was given.
 if test "${enable_symbols+set}" = set; then
   enableval="$enable_symbols"
@@ -1455,6 +1457,26 @@ fi
     fi
 
 
+    echo $ac_n "checking for build with memory debugging""... $ac_c" 1>&6
+echo "configure:1462: checking for build with memory debugging" >&5
+    # Check whether --enable-memdebug or --disable-memdebug was given.
+if test "${enable_memdebug+set}" = set; then
+  enableval="$enable_memdebug"
+  tcl_ok=$enableval
+else
+  tcl_ok=no
+fi
+
+    if test "$tcl_ok" = "yes"; then
+	MEM_DEBUG_FLAGS=-DTCL_MEM_DEBUG
+	echo "$ac_t""yes" 1>&6
+    else
+	MEM_DEBUG_FLAGS=""
+	echo "$ac_t""no" 1>&6
+    fi
+    
+
+
 TCL_DBGX=${DBGX}
 
 #--------------------------------------------------------------------
@@ -1462,7 +1484,7 @@ TCL_DBGX=${DBGX}
 #--------------------------------------------------------------------
 
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:1466: checking how to run the C preprocessor" >&5
+echo "configure:1488: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -1477,13 +1499,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1481 "configure"
+#line 1503 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1487: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1509: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1494,13 +1516,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1498 "configure"
+#line 1520 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1504: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1526: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1511,13 +1533,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 1515 "configure"
+#line 1537 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1521: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1543: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -1543,17 +1565,17 @@ echo "$ac_t""$CPP" 1>&6
 
 ac_safe=`echo "errno.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for errno.h""... $ac_c" 1>&6
-echo "configure:1547: checking for errno.h" >&5
+echo "configure:1569: checking for errno.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1552 "configure"
+#line 1574 "configure"
 #include "confdefs.h"
 #include <errno.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1557: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1579: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1888,6 +1910,7 @@ s%@DL_LIBS@%$DL_LIBS%g
 s%@CFLAGS_DEBUG@%$CFLAGS_DEBUG%g
 s%@CFLAGS_OPTIMIZE@%$CFLAGS_OPTIMIZE%g
 s%@CFLAGS_WARNING@%$CFLAGS_WARNING%g
+s%@MEM_DEBUG_FLAGS@%$MEM_DEBUG_FLAGS%g
 s%@CPP@%$CPP%g
 s%@MAN2TCLFLAGS@%$MAN2TCLFLAGS%g
 s%@TCL_VERSION@%$TCL_VERSION%g
diff --git a/win/configure.in b/win/configure.in
index ecc64d0..143143a 100644
--- a/win/configure.in
+++ b/win/configure.in
@@ -3,7 +3,7 @@
 # generate the file "configure", which is run during Tcl installation
 # to configure the system for the local environment.
 #
-# RCS: @(#) $Id: configure.in,v 1.52 2002/08/20 15:33:34 dgp Exp $
+# RCS: @(#) $Id: configure.in,v 1.53 2002/08/22 00:52:34 andreas_kupries Exp $
 
 AC_INIT(../generic/tcl.h)
 AC_PREREQ(2.13)
@@ -147,6 +147,7 @@ SC_CONFIG_CFLAGS
 #--------------------------------------------------------------------
 
 SC_ENABLE_SYMBOLS
+SC_ENABLE_MEMDEBUG
 
 TCL_DBGX=${DBGX}
 
diff --git a/win/tcl.m4 b/win/tcl.m4
index cd8796a..71ce0a9 100644
--- a/win/tcl.m4
+++ b/win/tcl.m4
@@ -300,6 +300,42 @@ AC_DEFUN(SC_ENABLE_SYMBOLS, [
 ])
 
 
+#------------------------------------------------------------------------
+# SC_ENABLE_MEMDEBUG --
+#
+#	Specify if the memory debugging code should be used
+#
+# Arguments:
+#	none
+#	
+#	Requires the following vars to be set in the Makefile:
+#		None.
+#	
+# Results:
+#
+#	Adds the following arguments to configure:
+#		--enable-memdebug
+#
+#	Defines the following @vars@:
+#		MEM_DEBUG_FLAGS	Sets to -DTCL_MEM_DEBUG if true
+#				Sets to "" if false
+#
+#------------------------------------------------------------------------
+
+AC_DEFUN(SC_ENABLE_MEMDEBUG, [
+    AC_MSG_CHECKING([for build with memory debugging])
+    AC_ARG_ENABLE(memdebug, [  --enable-memdebug       build with memory debugging [--disable-memdebug]],    [tcl_ok=$enableval], [tcl_ok=no])
+    if test "$tcl_ok" = "yes"; then
+	MEM_DEBUG_FLAGS=-DTCL_MEM_DEBUG
+	AC_MSG_RESULT([yes])
+    else
+	MEM_DEBUG_FLAGS=""
+	AC_MSG_RESULT([no])
+    fi
+    AC_SUBST(MEM_DEBUG_FLAGS)
+])
+
+
 #--------------------------------------------------------------------
 # SC_CONFIG_CFLAGS
 #