From f6af18a9476f566a34901b828e33f7141266174c Mon Sep 17 00:00:00 2001
From: "jan.nijtmans" <nijtmans@users.sourceforge.net>
Date: Tue, 22 May 2018 20:12:03 +0000
Subject: More removals of TCL_THREADS usage (configure scripts/win makefiles)

---
 unix/configure       | 100 ++++++++++++++++++++-------------------------------
 unix/configure.ac    |  57 ++++++++++++++---------------
 unix/tcl.m4          |  53 +++++++++++----------------
 unix/tclConfig.h.in  |   3 --
 unix/tclConfig.sh.in |   3 --
 win/makefile.vc      |   3 --
 win/rules.vc         |  18 +++++-----
 win/tclConfig.sh.in  |   4 ---
 8 files changed, 95 insertions(+), 146 deletions(-)

diff --git a/unix/configure b/unix/configure
index 4e3e06f..cb3116d 100755
--- a/unix/configure
+++ b/unix/configure
@@ -4976,7 +4976,7 @@ fi
 fi
     case $system in
 	AIX-*)
-	    if test "${TCL_THREADS}" = "1" -a "$GCC" != "yes"; then :
+	    if test "$GCC" != "yes"; then :
 
 		# AIX requires the _r compiler when gcc isn't being used
 		case "${CC}" in
@@ -5178,9 +5178,6 @@ $as_echo "$ac_cv_cygwin" >&6; }
 	    if test "$ac_cv_cygwin" = "no"; then
 		as_fn_error $? "${CC} is not a cygwin compiler." "$LINENO" 5
 	    fi
-	    if test "x${TCL_THREADS}" = "x0"; then
-		as_fn_error $? "CYGWIN compile is only supported with --enable-threads" "$LINENO" 5
-	    fi
 	    do64bit_ok=yes
 	    if test "x${SHARED_BUILD}" = "x1"; then
 		echo "running cd ../win; ${CONFIG_SHELL-/bin/sh} ./configure $ac_configure_args"
@@ -5627,14 +5624,10 @@ fi
 	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
 	    LDFLAGS="-Wl,-export-dynamic"
 	    CFLAGS_OPTIMIZE="-O2"
-	    if test "${TCL_THREADS}" = "1"; then :
-
-		# On OpenBSD:	Compile with -pthread
-		#		Don't link with -lpthread
-		LIBS=`echo $LIBS | sed s/-lpthread//`
-		CFLAGS="$CFLAGS -pthread"
-
-fi
+	    # On OpenBSD:	Compile with -pthread
+	    #		Don't link with -lpthread
+	    LIBS=`echo $LIBS | sed s/-lpthread//`
+	    CFLAGS="$CFLAGS -pthread"
 	    # OpenBSD doesn't do version numbers with dots.
 	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
 	    TCL_LIB_VERSIONS_OK=nodots
@@ -5652,14 +5645,10 @@ fi
 		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
 fi
 	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
-	    if test "${TCL_THREADS}" = "1"; then :
-
-		# The -pthread needs to go in the CFLAGS, not LIBS
-		LIBS=`echo $LIBS | sed s/-pthread//`
-		CFLAGS="$CFLAGS -pthread"
-	    	LDFLAGS="$LDFLAGS -pthread"
-
-fi
+	    # The -pthread needs to go in the CFLAGS, not LIBS
+	    LIBS=`echo $LIBS | sed s/-pthread//`
+	    CFLAGS="$CFLAGS -pthread"
+	    LDFLAGS="$LDFLAGS -pthread"
 	    ;;
 	FreeBSD-*)
 	    # This configuration from FreeBSD Ports.
@@ -5675,13 +5664,10 @@ fi
 		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
 		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
 fi
-	    if test "${TCL_THREADS}" = "1"; then :
-
-		# The -pthread needs to go in the LDFLAGS, not LIBS
-		LIBS=`echo $LIBS | sed s/-pthread//`
-		CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-		LDFLAGS="$LDFLAGS $PTHREAD_LIBS"
-fi
+	    # The -pthread needs to go in the LDFLAGS, not LIBS
+	    LIBS=`echo $LIBS | sed s/-pthread//`
+	    CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+	    LDFLAGS="$LDFLAGS $PTHREAD_LIBS"
 	    case $system in
 	    FreeBSD-3.*)
 		# Version numbers are dot-stripped by system policy.
@@ -6043,21 +6029,17 @@ else
 		CFLAGS="$CFLAGS -DHAVE_TZSET -std1 -ieee"
 fi
 	    # see pthread_intro(3) for pthread support on osf1, k.furukawa
-	    if test "${TCL_THREADS}" = 1; then :
-
-		CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
-		CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
-		LIBS=`echo $LIBS | sed s/-lpthreads//`
-		if test "$GCC" = yes; then :
+	    CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
+	    CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
+	    LIBS=`echo $LIBS | sed s/-lpthreads//`
+	    if test "$GCC" = yes; then :
 
-		    LIBS="$LIBS -lpthread -lmach -lexc"
+		LIBS="$LIBS -lpthread -lmach -lexc"
 
 else
 
-		    CFLAGS="$CFLAGS -pthread"
-		    LDFLAGS="$LDFLAGS -pthread"
-
-fi
+		CFLAGS="$CFLAGS -pthread"
+		LDFLAGS="$LDFLAGS -pthread"
 
 fi
 	    ;;
@@ -7316,7 +7298,7 @@ $as_echo "#define NO_UNAME 1" >>confdefs.h
 fi
 
 
-if test "`uname -s`" = "Darwin" && test "${TCL_THREADS}" = 1 && \
+if test "`uname -s`" = "Darwin" && \
 	test "`uname -r | awk -F. '{print $1}'`" -lt 7; then
     # prior to Darwin 7, realpath is not threadsafe, so don't
     # use it when threads are enabled, c.f. bug # 711232
@@ -7439,8 +7421,7 @@ fi
 #	Look for thread-safe variants of some library functions.
 #--------------------------------------------------------------------
 
-if test "${TCL_THREADS}" = 1; then
-    ac_fn_c_check_func "$LINENO" "getpwuid_r" "ac_cv_func_getpwuid_r"
+ac_fn_c_check_func "$LINENO" "getpwuid_r" "ac_cv_func_getpwuid_r"
 if test "x$ac_cv_func_getpwuid_r" = xyes; then :
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getpwuid_r with 5 args" >&5
@@ -7536,7 +7517,7 @@ $as_echo "#define HAVE_GETPWUID_R 1" >>confdefs.h
 
 fi
 
-    ac_fn_c_check_func "$LINENO" "getpwnam_r" "ac_cv_func_getpwnam_r"
+ac_fn_c_check_func "$LINENO" "getpwnam_r" "ac_cv_func_getpwnam_r"
 if test "x$ac_cv_func_getpwnam_r" = xyes; then :
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getpwnam_r with 5 args" >&5
@@ -7632,7 +7613,7 @@ $as_echo "#define HAVE_GETPWNAM_R 1" >>confdefs.h
 
 fi
 
-    ac_fn_c_check_func "$LINENO" "getgrgid_r" "ac_cv_func_getgrgid_r"
+ac_fn_c_check_func "$LINENO" "getgrgid_r" "ac_cv_func_getgrgid_r"
 if test "x$ac_cv_func_getgrgid_r" = xyes; then :
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getgrgid_r with 5 args" >&5
@@ -7728,7 +7709,7 @@ $as_echo "#define HAVE_GETGRGID_R 1" >>confdefs.h
 
 fi
 
-    ac_fn_c_check_func "$LINENO" "getgrnam_r" "ac_cv_func_getgrnam_r"
+ac_fn_c_check_func "$LINENO" "getgrnam_r" "ac_cv_func_getgrnam_r"
 if test "x$ac_cv_func_getgrnam_r" = xyes; then :
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for getgrnam_r with 5 args" >&5
@@ -7824,11 +7805,11 @@ $as_echo "#define HAVE_GETGRNAM_R 1" >>confdefs.h
 
 fi
 
-    if test "`uname -s`" = "Darwin" && \
-	    test "`uname -r | awk -F. '{print $1}'`" -gt 5; then
-	# Starting with Darwin 6 (Mac OSX 10.2), gethostbyX
-	# are actually MT-safe as they always return pointers
-	# from TSD instead of static storage.
+if test "`uname -s`" = "Darwin" && \
+	test "`uname -r | awk -F. '{print $1}'`" -gt 5; then
+    # Starting with Darwin 6 (Mac OSX 10.2), gethostbyX
+    # are actually MT-safe as they always return pointers
+    # from TSD instead of static storage.
 
 $as_echo "#define HAVE_MTSAFE_GETHOSTBYNAME 1" >>confdefs.h
 
@@ -7836,11 +7817,11 @@ $as_echo "#define HAVE_MTSAFE_GETHOSTBYNAME 1" >>confdefs.h
 $as_echo "#define HAVE_MTSAFE_GETHOSTBYADDR 1" >>confdefs.h
 
 
-    elif test "`uname -s`" = "HP-UX" && \
-	      test "`uname -r|sed -e 's|B\.||' -e 's|\..*$||'`" -gt 10; then
-        # Starting with HPUX 11.00 (we believe), gethostbyX
-        # are actually MT-safe as they always return pointers
-	# from TSD instead of static storage.
+elif test "`uname -s`" = "HP-UX" && \
+	test "`uname -r|sed -e 's|B\.||' -e 's|\..*$||'`" -gt 10; then
+    # Starting with HPUX 11.00 (we believe), gethostbyX
+    # are actually MT-safe as they always return pointers
+    # from TSD instead of static storage.
 
 $as_echo "#define HAVE_MTSAFE_GETHOSTBYNAME 1" >>confdefs.h
 
@@ -7848,8 +7829,8 @@ $as_echo "#define HAVE_MTSAFE_GETHOSTBYNAME 1" >>confdefs.h
 $as_echo "#define HAVE_MTSAFE_GETHOSTBYADDR 1" >>confdefs.h
 
 
-    else
-	ac_fn_c_check_func "$LINENO" "gethostbyname_r" "ac_cv_func_gethostbyname_r"
+else
+    ac_fn_c_check_func "$LINENO" "gethostbyname_r" "ac_cv_func_gethostbyname_r"
 if test "x$ac_cv_func_gethostbyname_r" = xyes; then :
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gethostbyname_r with 6 args" >&5
@@ -7986,7 +7967,7 @@ $as_echo "#define HAVE_GETHOSTBYNAME_R 1" >>confdefs.h
 
 fi
 
-	ac_fn_c_check_func "$LINENO" "gethostbyaddr_r" "ac_cv_func_gethostbyaddr_r"
+    ac_fn_c_check_func "$LINENO" "gethostbyaddr_r" "ac_cv_func_gethostbyaddr_r"
 if test "x$ac_cv_func_gethostbyaddr_r" = xyes; then :
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gethostbyaddr_r with 7 args" >&5
@@ -8088,7 +8069,6 @@ $as_echo "#define HAVE_GETHOSTBYADDR_R 1" >>confdefs.h
 
 fi
 
-    fi
 fi
 
 #---------------------------------------------------------------------------
@@ -8280,10 +8260,6 @@ fi;;
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: OSX" >&5
 $as_echo "OSX" >&6; };;
   *)
-	cat >>confdefs.h <<_ACEOF
-#define NOTIFIER_SELECT 1
-_ACEOF
-
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
 $as_echo "none" >&6; };;
 esac
diff --git a/unix/configure.ac b/unix/configure.ac
index 5b982e8..609312b 100644
--- a/unix/configure.ac
+++ b/unix/configure.ac
@@ -209,7 +209,7 @@ AC_CHECK_FUNC(getwd, , [AC_DEFINE(NO_GETWD, 1, [Do we have getwd()])])
 AC_CHECK_FUNC(wait3, , [AC_DEFINE(NO_WAIT3, 1, [Do we have wait3()])])
 AC_CHECK_FUNC(uname, , [AC_DEFINE(NO_UNAME, 1, [Do we have uname()])])
 
-if test "`uname -s`" = "Darwin" && test "${TCL_THREADS}" = 1 && \
+if test "`uname -s`" = "Darwin" && \
 	test "`uname -r | awk -F. '{print [$]1}'`" -lt 7; then
     # prior to Darwin 7, realpath is not threadsafe, so don't
     # use it when threads are enabled, c.f. bug # 711232
@@ -223,35 +223,33 @@ SC_TCL_IPV6
 #	Look for thread-safe variants of some library functions.
 #--------------------------------------------------------------------
 
-if test "${TCL_THREADS}" = 1; then
-    SC_TCL_GETPWUID_R
-    SC_TCL_GETPWNAM_R
-    SC_TCL_GETGRGID_R
-    SC_TCL_GETGRNAM_R
-    if test "`uname -s`" = "Darwin" && \
-	    test "`uname -r | awk -F. '{print [$]1}'`" -gt 5; then
-	# Starting with Darwin 6 (Mac OSX 10.2), gethostbyX
-	# are actually MT-safe as they always return pointers
-	# from TSD instead of static storage.
-	AC_DEFINE(HAVE_MTSAFE_GETHOSTBYNAME, 1,
-		[Do we have MT-safe gethostbyname() ?])
-	AC_DEFINE(HAVE_MTSAFE_GETHOSTBYADDR, 1,
-		[Do we have MT-safe gethostbyaddr() ?])
-
-    elif test "`uname -s`" = "HP-UX" && \
-	      test "`uname -r|sed -e 's|B\.||' -e 's|\..*$||'`" -gt 10; then
-        # Starting with HPUX 11.00 (we believe), gethostbyX
-        # are actually MT-safe as they always return pointers
-	# from TSD instead of static storage.
-	AC_DEFINE(HAVE_MTSAFE_GETHOSTBYNAME, 1,
-		[Do we have MT-safe gethostbyname() ?])
-	AC_DEFINE(HAVE_MTSAFE_GETHOSTBYADDR, 1,
-		[Do we have MT-safe gethostbyaddr() ?])
+SC_TCL_GETPWUID_R
+SC_TCL_GETPWNAM_R
+SC_TCL_GETGRGID_R
+SC_TCL_GETGRNAM_R
+if test "`uname -s`" = "Darwin" && \
+	test "`uname -r | awk -F. '{print [$]1}'`" -gt 5; then
+    # Starting with Darwin 6 (Mac OSX 10.2), gethostbyX
+    # are actually MT-safe as they always return pointers
+    # from TSD instead of static storage.
+    AC_DEFINE(HAVE_MTSAFE_GETHOSTBYNAME, 1,
+	    [Do we have MT-safe gethostbyname() ?])
+    AC_DEFINE(HAVE_MTSAFE_GETHOSTBYADDR, 1,
+	    [Do we have MT-safe gethostbyaddr() ?])
+
+elif test "`uname -s`" = "HP-UX" && \
+	test "`uname -r|sed -e 's|B\.||' -e 's|\..*$||'`" -gt 10; then
+    # Starting with HPUX 11.00 (we believe), gethostbyX
+    # are actually MT-safe as they always return pointers
+    # from TSD instead of static storage.
+    AC_DEFINE(HAVE_MTSAFE_GETHOSTBYNAME, 1,
+	    [Do we have MT-safe gethostbyname() ?])
+    AC_DEFINE(HAVE_MTSAFE_GETHOSTBYADDR, 1,
+	    [Do we have MT-safe gethostbyaddr() ?])
 
-    else
-	SC_TCL_GETHOSTBYNAME_R
-	SC_TCL_GETHOSTBYADDR_R
-    fi
+else
+    SC_TCL_GETHOSTBYNAME_R
+    SC_TCL_GETHOSTBYADDR_R
 fi
 
 #---------------------------------------------------------------------------
@@ -321,7 +319,6 @@ case x`uname -s` in
 	# of wider impact).
 	AC_MSG_RESULT([OSX]);;
   *)
-	AC_DEFINE_UNQUOTED(NOTIFIER_SELECT)
 	AC_MSG_RESULT([none]);;
 esac
 
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index 70f3c3d..aaf5835 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -994,7 +994,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
     AS_IF([test "x${SHLIB_VERSION}" = x], [SHLIB_VERSION="1.0"])
     case $system in
 	AIX-*)
-	    AS_IF([test "${TCL_THREADS}" = "1" -a "$GCC" != "yes"], [
+	    AS_IF([test "$GCC" != "yes"], [
 		# AIX requires the _r compiler when gcc isn't being used
 		case "${CC}" in
 		    *_r|*_r\ *)
@@ -1115,9 +1115,6 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    if test "$ac_cv_cygwin" = "no"; then
 		AC_MSG_ERROR([${CC} is not a cygwin compiler.])
 	    fi
-	    if test "x${TCL_THREADS}" = "x0"; then
-		AC_MSG_ERROR([CYGWIN compile is only supported with --enable-threads])
-	    fi
 	    do64bit_ok=yes
 	    if test "x${SHARED_BUILD}" = "x1"; then
 		echo "running cd ../win; ${CONFIG_SHELL-/bin/sh} ./configure $ac_configure_args"
@@ -1347,12 +1344,10 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
 	    LDFLAGS="-Wl,-export-dynamic"
 	    CFLAGS_OPTIMIZE="-O2"
-	    AS_IF([test "${TCL_THREADS}" = "1"], [
-		# On OpenBSD:	Compile with -pthread
-		#		Don't link with -lpthread
-		LIBS=`echo $LIBS | sed s/-lpthread//`
-		CFLAGS="$CFLAGS -pthread"
-	    ])
+	    # On OpenBSD:	Compile with -pthread
+	    #		Don't link with -lpthread
+	    LIBS=`echo $LIBS | sed s/-lpthread//`
+	    CFLAGS="$CFLAGS -pthread"
 	    # OpenBSD doesn't do version numbers with dots.
 	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
 	    TCL_LIB_VERSIONS_OK=nodots
@@ -1368,12 +1363,10 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    AS_IF([test $doRpath = yes], [
 		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
 	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
-	    AS_IF([test "${TCL_THREADS}" = "1"], [
-		# The -pthread needs to go in the CFLAGS, not LIBS
-		LIBS=`echo $LIBS | sed s/-pthread//`
-		CFLAGS="$CFLAGS -pthread"
-	    	LDFLAGS="$LDFLAGS -pthread"
-	    ])
+	    # The -pthread needs to go in the CFLAGS, not LIBS
+	    LIBS=`echo $LIBS | sed s/-pthread//`
+	    CFLAGS="$CFLAGS -pthread"
+	    LDFLAGS="$LDFLAGS -pthread"
 	    ;;
 	FreeBSD-*)
 	    # This configuration from FreeBSD Ports.
@@ -1387,11 +1380,10 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    AS_IF([test $doRpath = yes], [
 		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
 		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
-	    AS_IF([test "${TCL_THREADS}" = "1"], [
-		# The -pthread needs to go in the LDFLAGS, not LIBS
-		LIBS=`echo $LIBS | sed s/-pthread//`
-		CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-		LDFLAGS="$LDFLAGS $PTHREAD_LIBS"])
+	    # The -pthread needs to go in the LDFLAGS, not LIBS
+	    LIBS=`echo $LIBS | sed s/-pthread//`
+	    CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+	    LDFLAGS="$LDFLAGS $PTHREAD_LIBS"
 	    case $system in
 	    FreeBSD-3.*)
 		# Version numbers are dot-stripped by system policy.
@@ -1563,16 +1555,14 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [
 	    AS_IF([test "$GCC" = yes], [CFLAGS="$CFLAGS -mieee"], [
 		CFLAGS="$CFLAGS -DHAVE_TZSET -std1 -ieee"])
 	    # see pthread_intro(3) for pthread support on osf1, k.furukawa
-	    AS_IF([test "${TCL_THREADS}" = 1], [
-		CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
-		CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
-		LIBS=`echo $LIBS | sed s/-lpthreads//`
-		AS_IF([test "$GCC" = yes], [
-		    LIBS="$LIBS -lpthread -lmach -lexc"
-		], [
-		    CFLAGS="$CFLAGS -pthread"
-		    LDFLAGS="$LDFLAGS -pthread"
-		])
+	    CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
+	    CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
+	    LIBS=`echo $LIBS | sed s/-lpthreads//`
+	    AS_IF([test "$GCC" = yes], [
+		LIBS="$LIBS -lpthread -lmach -lexc"
+	    ], [
+		CFLAGS="$CFLAGS -pthread"
+		LDFLAGS="$LDFLAGS -pthread"
 	    ])
 	    ;;
 	QNX-6*)
@@ -2254,7 +2244,6 @@ AC_DEFUN([SC_BUGGY_STRTOD], [
 #		THREADS_LIBS	Thread library(s)
 #
 #	Defines the following vars:
-#		TCL_THREADS
 #		_REENTRANT
 #		_THREAD_SAFE
 #
diff --git a/unix/tclConfig.h.in b/unix/tclConfig.h.in
index c284cba..b9d0059 100644
--- a/unix/tclConfig.h.in
+++ b/unix/tclConfig.h.in
@@ -385,9 +385,6 @@
 /* What is the default extension for shared libraries? */
 #undef TCL_SHLIB_EXT
 
-/* Are we building with threads enabled? */
-#undef TCL_THREADS
-
 /* Do we allow unloading of shared libraries? */
 #undef TCL_UNLOAD_DLLS
 
diff --git a/unix/tclConfig.sh.in b/unix/tclConfig.sh.in
index fdc56b7..1edee2f 100644
--- a/unix/tclConfig.sh.in
+++ b/unix/tclConfig.sh.in
@@ -164,6 +164,3 @@ TCL_BUILD_STUB_LIB_PATH='@TCL_BUILD_STUB_LIB_PATH@'
 
 # Path to the Tcl stub library in the install directory.
 TCL_STUB_LIB_PATH='@TCL_STUB_LIB_PATH@'
-
-# Flag, 1: we built Tcl with threads enabled, 0 we didn't
-TCL_THREADS=@TCL_THREADS@
diff --git a/win/makefile.vc b/win/makefile.vc
index 3baef7f..ceeaa02 100644
--- a/win/makefile.vc
+++ b/win/makefile.vc
@@ -582,7 +582,6 @@ $(OUT_DIR)\tcl.nmake:
 	@type << >$@
 CORE_MACHINE = $(MACHINE)
 CORE_DEBUG = $(DEBUG)
-CORE_TCL_THREADS = $(TCL_THREADS)
 CORE_USE_THREAD_ALLOC = $(USE_THREAD_ALLOC)
 CORE_USE_WIDECHAR_API = $(USE_WIDECHAR_API)
 <<
@@ -638,7 +637,6 @@ $(OUT_DIR)\tclConfig.sh: $(WINDIR)\tclConfig.sh.in
 @TCL_STUB_LIB_FILE@  $(TCLSTUBLIBNAME)
 @TCL_STUB_LIB_FLAG@  $(TCLSTUBLIBNAME)
 @TCL_STUB_LIB_SPEC@  -L$(LIB_INSTALL_DIR) $(TCLSTUBLIBNAME)
-@TCL_THREADS@        $(TCL_THREADS)
 @TCL_BUILD_STUB_LIB_SPEC@ -L$(OUT_DIR) $(TCLSTUBLIBNAME)
 @TCL_BUILD_STUB_LIB_PATH@ $(TCLSTUBLIB)
 @TCL_STUB_LIB_PATH@  $(LIB_INSTALL_DIR)\$(TCLSTUBLIBNAME)
@@ -711,7 +709,6 @@ $(TMP_DIR)\tclAppInit.obj: $(WINDIR)\tclAppInit.c
 	    -Fo$@ $?
 
 ### The following objects should be built using the stub interfaces
-### *ALL* extensions need to built with -DTCL_THREADS=1
 
 $(TMP_DIR)\tclWinReg.obj: $(WINDIR)\tclWinReg.c
 !if $(STATIC_BUILD)
diff --git a/win/rules.vc b/win/rules.vc
index f93400c..fbcb235 100644
--- a/win/rules.vc
+++ b/win/rules.vc
@@ -24,7 +24,7 @@ _RULES_VC = 1
 # For modifications that are not backward-compatible, you *must* change
 # the major version.
 RULES_VERSION_MAJOR = 1
-RULES_VERSION_MINOR = 2
+RULES_VERSION_MINOR = 3
 
 # The PROJECT macro must be defined by parent makefile.
 !if "$(PROJECT)" == ""
@@ -1063,17 +1063,17 @@ TCL_INCLUDES    = -I"$(WINDIR)" -I"$(GENERICDIR)"
 # When building extensions, we need to locate tclsh. Depending on version
 # of Tcl we are building against, this may or may not have a "t" suffix.
 # Try various possibilities in turn.
-TCLSH		= $(_TCLDIR)\bin\tclsh$(TCL_VERSION)$(SUFX).exe
+TCLSH		= $(_TCLDIR)\bin\tclsh$(TCL_VERSION)$(SUFX:t=).exe
 !if !exist("$(TCLSH)")
-TCLSH           = $(_TCLDIR)\bin\tclsh$(TCL_VERSION)$(SUFX:t=).exe
+TCLSH           = $(_TCLDIR)\bin\tclsh$(TCL_VERSION)t$(SUFX:t=).exe
 !endif
 
 TCLSTUBLIB	= $(_TCLDIR)\lib\tclstub$(TCL_VERSION).lib
-TCLIMPLIB	= $(_TCLDIR)\lib\tcl$(TCL_VERSION)$(SUFX).lib
+TCLIMPLIB	= $(_TCLDIR)\lib\tcl$(TCL_VERSION)$(SUFX:t=).lib
 # When building extensions, may be linking against Tcl that does not add
 # "t" suffix (e.g. 8.5 or 8.7). If lib not found check for that possibility.
 !if !exist("$(TCLIMPLIB)")
-TCLIMPLIB	= $(_TCLDIR)\lib\tcl$(TCL_VERSION)$(SUFX:t=).lib
+TCLIMPLIB	= $(_TCLDIR)\lib\tcl$(TCL_VERSION)t$(SUFX:t=).lib
 !endif
 TCL_LIBRARY	= $(_TCLDIR)\lib
 TCLREGLIB	= $(_TCLDIR)\lib\tclreg13$(SUFX:t=).lib
@@ -1083,16 +1083,16 @@ TCL_INCLUDES    = -I"$(_TCLDIR)\include"
 
 !else # Building against Tcl sources
 
-TCLSH		= $(_TCLDIR)\win\$(BUILDDIRTOP)\tclsh$(TCL_VERSION)$(SUFX).exe
-!if !exist($(TCLSH))
 TCLSH		= $(_TCLDIR)\win\$(BUILDDIRTOP)\tclsh$(TCL_VERSION)$(SUFX:t=).exe
+!if !exist($(TCLSH))
+TCLSH		= $(_TCLDIR)\win\$(BUILDDIRTOP)\tclsh$(TCL_VERSION)t$(SUFX:t=).exe
 !endif
 TCLSTUBLIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tclstub$(TCL_VERSION).lib
-TCLIMPLIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tcl$(TCL_VERSION)$(SUFX).lib
+TCLIMPLIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tcl$(TCL_VERSION)$(SUFX:t=).lib
 # When building extensions, may be linking against Tcl that does not add
 # "t" suffix (e.g. 8.5 or 8.7). If lib not found check for that possibility.
 !if !exist("$(TCLIMPLIB)")
-TCLIMPLIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tcl$(TCL_VERSION)$(SUFX:t=).lib
+TCLIMPLIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tcl$(TCL_VERSION)t$(SUFX:t=).lib
 !endif
 TCL_LIBRARY	= $(_TCLDIR)\library
 TCLREGLIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tclreg13$(SUFX:t=).lib
diff --git a/win/tclConfig.sh.in b/win/tclConfig.sh.in
index 97670aa..8aa25f8 100644
--- a/win/tclConfig.sh.in
+++ b/win/tclConfig.sh.in
@@ -175,7 +175,3 @@ TCL_BUILD_STUB_LIB_PATH='@TCL_BUILD_STUB_LIB_PATH@'
 
 # Path to the Tcl stub library in the install directory.
 TCL_STUB_LIB_PATH='@TCL_STUB_LIB_PATH@'
-
-# Flag, 1: we built Tcl with threads enabled, 0 we didn't
-TCL_THREADS=@TCL_THREADS@
-
-- 
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