summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--generic/tclTrace.c12
-rwxr-xr-xunix/configure263
-rw-r--r--unix/tcl.m4163
-rw-r--r--unix/tclUnixPort.h8
-rwxr-xr-xwin/configure36
-rw-r--r--win/tcl.m436
6 files changed, 332 insertions, 186 deletions
diff --git a/generic/tclTrace.c b/generic/tclTrace.c
index f86f472..872c8ef 100644
--- a/generic/tclTrace.c
+++ b/generic/tclTrace.c
@@ -191,8 +191,10 @@ Tcl_TraceObjCmd(
Tcl_Obj *const objv[]) /* Argument objects. */
{
int optionIndex;
+#ifndef TCL_REMOVE_OBSOLETE_TRACES
const char *name;
const char *flagOps, *p;
+#endif
/* Main sub commands to 'trace' */
static const char *const traceOptions[] = {
"add", "info", "remove",
@@ -365,12 +367,14 @@ Tcl_TraceObjCmd(
}
return TCL_OK;
+#ifndef TCL_REMOVE_OBSOLETE_TRACES
badVarOps:
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"bad operations \"%s\": should be one or more of rwua",
flagOps));
Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRACE", "BADOPS", NULL);
return TCL_ERROR;
+#endif
}
/*
@@ -912,9 +916,11 @@ TraceVariableObjCmd(
+ 1 + length);
ctvarPtr->traceCmdInfo.flags = flags;
+#ifndef TCL_REMOVE_OBSOLETE_TRACES
if (objv[0] == NULL) {
ctvarPtr->traceCmdInfo.flags |= TCL_TRACE_OLD_STYLE;
}
+#endif
ctvarPtr->traceCmdInfo.length = length;
flags |= TCL_TRACE_UNSETS | TCL_TRACE_RESULT_OBJECT;
memcpy(ctvarPtr->traceCmdInfo.command, command, length+1);
@@ -939,7 +945,11 @@ TraceVariableObjCmd(
TraceVarInfo *tvarPtr = clientData;
if ((tvarPtr->length == length)
- && ((tvarPtr->flags & ~TCL_TRACE_OLD_STYLE)==flags)
+ && ((tvarPtr->flags
+#ifndef TCL_REMOVE_OBSOLETE_TRACES
+& ~TCL_TRACE_OLD_STYLE
+#endif
+ )==flags)
&& (strncmp(command, tvarPtr->command,
(size_t) length) == 0)) {
Tcl_UntraceVar2(interp, name, NULL,
diff --git a/unix/configure b/unix/configure
index a2db021..4e3e06f 100755
--- a/unix/configure
+++ b/unix/configure
@@ -4134,6 +4134,269 @@ fi
+$as_echo "#define _REENTRANT 1" >>confdefs.h
+
+
+$as_echo "#define _THREAD_SAFE 1" >>confdefs.h
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_mutex_init in -lpthread" >&5
+$as_echo_n "checking for pthread_mutex_init in -lpthread... " >&6; }
+if ${ac_cv_lib_pthread_pthread_mutex_init+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_mutex_init ();
+int
+main ()
+{
+return pthread_mutex_init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_pthread_pthread_mutex_init=yes
+else
+ ac_cv_lib_pthread_pthread_mutex_init=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_mutex_init" >&5
+$as_echo "$ac_cv_lib_pthread_pthread_mutex_init" >&6; }
+if test "x$ac_cv_lib_pthread_pthread_mutex_init" = xyes; then :
+ tcl_ok=yes
+else
+ tcl_ok=no
+fi
+
+ if test "$tcl_ok" = "no"; then
+ # Check a little harder for __pthread_mutex_init in the same
+ # library, as some systems hide it there until pthread.h is
+ # defined. We could alternatively do an AC_TRY_COMPILE with
+ # pthread.h, but that will work with libpthread really doesn't
+ # exist, like AIX 4.2. [Bug: 4359]
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for __pthread_mutex_init in -lpthread" >&5
+$as_echo_n "checking for __pthread_mutex_init in -lpthread... " >&6; }
+if ${ac_cv_lib_pthread___pthread_mutex_init+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char __pthread_mutex_init ();
+int
+main ()
+{
+return __pthread_mutex_init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_pthread___pthread_mutex_init=yes
+else
+ ac_cv_lib_pthread___pthread_mutex_init=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread___pthread_mutex_init" >&5
+$as_echo "$ac_cv_lib_pthread___pthread_mutex_init" >&6; }
+if test "x$ac_cv_lib_pthread___pthread_mutex_init" = xyes; then :
+ tcl_ok=yes
+else
+ tcl_ok=no
+fi
+
+ fi
+
+ if test "$tcl_ok" = "yes"; then
+ # The space is needed
+ THREADS_LIBS=" -lpthread"
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_mutex_init in -lpthreads" >&5
+$as_echo_n "checking for pthread_mutex_init in -lpthreads... " >&6; }
+if ${ac_cv_lib_pthreads_pthread_mutex_init+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthreads $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_mutex_init ();
+int
+main ()
+{
+return pthread_mutex_init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_pthreads_pthread_mutex_init=yes
+else
+ ac_cv_lib_pthreads_pthread_mutex_init=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthreads_pthread_mutex_init" >&5
+$as_echo "$ac_cv_lib_pthreads_pthread_mutex_init" >&6; }
+if test "x$ac_cv_lib_pthreads_pthread_mutex_init" = xyes; then :
+ _ok=yes
+else
+ tcl_ok=no
+fi
+
+ if test "$tcl_ok" = "yes"; then
+ # The space is needed
+ THREADS_LIBS=" -lpthreads"
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_mutex_init in -lc" >&5
+$as_echo_n "checking for pthread_mutex_init in -lc... " >&6; }
+if ${ac_cv_lib_c_pthread_mutex_init+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_mutex_init ();
+int
+main ()
+{
+return pthread_mutex_init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_c_pthread_mutex_init=yes
+else
+ ac_cv_lib_c_pthread_mutex_init=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_pthread_mutex_init" >&5
+$as_echo "$ac_cv_lib_c_pthread_mutex_init" >&6; }
+if test "x$ac_cv_lib_c_pthread_mutex_init" = xyes; then :
+ tcl_ok=yes
+else
+ tcl_ok=no
+fi
+
+ if test "$tcl_ok" = "no"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_mutex_init in -lc_r" >&5
+$as_echo_n "checking for pthread_mutex_init in -lc_r... " >&6; }
+if ${ac_cv_lib_c_r_pthread_mutex_init+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc_r $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_mutex_init ();
+int
+main ()
+{
+return pthread_mutex_init ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_c_r_pthread_mutex_init=yes
+else
+ ac_cv_lib_c_r_pthread_mutex_init=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_r_pthread_mutex_init" >&5
+$as_echo "$ac_cv_lib_c_r_pthread_mutex_init" >&6; }
+if test "x$ac_cv_lib_c_r_pthread_mutex_init" = xyes; then :
+ tcl_ok=yes
+else
+ tcl_ok=no
+fi
+
+ if test "$tcl_ok" = "yes"; then
+ # The space is needed
+ THREADS_LIBS=" -pthread"
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Don't know how to find pthread lib on your system - you must edit the LIBS in the Makefile..." >&5
+$as_echo "$as_me: WARNING: Don't know how to find pthread lib on your system - you must edit the LIBS in the Makefile..." >&2;}
+ fi
+ fi
+ fi
+ fi
+
+ # Does the pthread-implementation provide
+ # 'pthread_attr_setstacksize' ?
+
+ ac_saved_libs=$LIBS
+ LIBS="$LIBS $THREADS_LIBS"
+ for ac_func in pthread_attr_setstacksize pthread_atfork
+do :
+ as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+ cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+ LIBS=$ac_saved_libs
+
+
# Add the threads support libraries
LIBS="$LIBS$THREADS_LIBS"
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index 4acbed0..70f3c3d 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -593,113 +593,6 @@ AC_DEFUN([SC_ENABLE_FRAMEWORK], [
])
#------------------------------------------------------------------------
-# 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
-# _THREAD_SAFE
-#------------------------------------------------------------------------
-
-AC_DEFUN([SC_ENABLE_THREADS], [
- AC_ARG_ENABLE(threads,
- AC_HELP_STRING([--enable-threads],
- [build with threads (default: on)]),
- [tcl_ok=$enableval], [tcl_ok=yes])
-
- if test "${TCL_THREADS}" = 1; then
- tcl_threaded_core=1;
- fi
-
- if test "$tcl_ok" = "yes" -o "${TCL_THREADS}" = 1; then
- TCL_THREADS=1
- # USE_THREAD_ALLOC tells us to try the special thread-based
- # allocator that significantly reduces lock contention
- AC_DEFINE(USE_THREAD_ALLOC, 1,
- [Do we want to use the threaded memory allocator?])
- AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
- if test "`uname -s`" = "SunOS" ; then
- AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
- [Do we really want to follow the standard? Yes we do!])
- fi
- AC_DEFINE(_THREAD_SAFE, 1, [Do we want the thread-safe OS API?])
- AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
- if test "$tcl_ok" = "no"; then
- # Check a little harder for __pthread_mutex_init in the same
- # library, as some systems hide it there until pthread.h is
- # defined. We could alternatively do an AC_TRY_COMPILE with
- # pthread.h, but that will work with libpthread really doesn't
- # exist, like AIX 4.2. [Bug: 4359]
- AC_CHECK_LIB(pthread, __pthread_mutex_init,
- tcl_ok=yes, tcl_ok=no)
- fi
-
- if test "$tcl_ok" = "yes"; then
- # The space is needed
- THREADS_LIBS=" -lpthread"
- else
- AC_CHECK_LIB(pthreads, pthread_mutex_init,
- tcl_ok=yes, tcl_ok=no)
- if test "$tcl_ok" = "yes"; then
- # The space is needed
- THREADS_LIBS=" -lpthreads"
- else
- AC_CHECK_LIB(c, pthread_mutex_init,
- tcl_ok=yes, tcl_ok=no)
- if test "$tcl_ok" = "no"; then
- AC_CHECK_LIB(c_r, pthread_mutex_init,
- tcl_ok=yes, tcl_ok=no)
- if test "$tcl_ok" = "yes"; then
- # The space is needed
- THREADS_LIBS=" -pthread"
- else
- TCL_THREADS=0
- AC_MSG_WARN([Don't know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile...])
- fi
- fi
- fi
- fi
-
- # Does the pthread-implementation provide
- # 'pthread_attr_setstacksize' ?
-
- ac_saved_libs=$LIBS
- LIBS="$LIBS $THREADS_LIBS"
- AC_CHECK_FUNCS(pthread_attr_setstacksize pthread_atfork)
- LIBS=$ac_saved_libs
- else
- TCL_THREADS=0
- fi
- # Do checking message here to not mess up interleaved configure output
- AC_MSG_CHECKING([for building with threads])
- if test "${TCL_THREADS}" = 1; then
- AC_DEFINE(TCL_THREADS, 1, [Are we building with threads enabled?])
- if test "${tcl_threaded_core}" = 1; then
- AC_MSG_RESULT([yes (threaded core)])
- else
- AC_MSG_RESULT([yes])
- fi
- else
- AC_MSG_RESULT([no])
- fi
-
- AC_SUBST(TCL_THREADS)
-])
-
-#------------------------------------------------------------------------
# SC_ENABLE_SYMBOLS --
#
# Specify if debugging symbols should be used.
@@ -2350,13 +2243,21 @@ AC_DEFUN([SC_BUGGY_STRTOD], [
#
# 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.
+# -lnsl) or thread library (-lpthread) are dealt with here.
#
# Arguments:
# None.
#
# Results:
#
+# Sets the following vars:
+# THREADS_LIBS Thread library(s)
+#
+# Defines the following vars:
+# TCL_THREADS
+# _REENTRANT
+# _THREAD_SAFE
+#
# Might append to the following vars:
# LIBS
# MATH_LIBS
@@ -2414,6 +2315,52 @@ AC_DEFUN([SC_TCL_LINK_LIBS], [
fi
AC_CHECK_FUNC(gethostbyname, , [AC_CHECK_LIB(nsl, gethostbyname,
[LIBS="$LIBS -lnsl"])])
+
+ AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
+ AC_DEFINE(_THREAD_SAFE, 1, [Do we want the thread-safe OS API?])
+ AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
+ if test "$tcl_ok" = "no"; then
+ # Check a little harder for __pthread_mutex_init in the same
+ # library, as some systems hide it there until pthread.h is
+ # defined. We could alternatively do an AC_TRY_COMPILE with
+ # pthread.h, but that will work with libpthread really doesn't
+ # exist, like AIX 4.2. [Bug: 4359]
+ AC_CHECK_LIB(pthread, __pthread_mutex_init,
+ tcl_ok=yes, tcl_ok=no)
+ fi
+
+ if test "$tcl_ok" = "yes"; then
+ # The space is needed
+ THREADS_LIBS=" -lpthread"
+ else
+ AC_CHECK_LIB(pthreads, pthread_mutex_init,
+ _ok=yes, tcl_ok=no)
+ if test "$tcl_ok" = "yes"; then
+ # The space is needed
+ THREADS_LIBS=" -lpthreads"
+ else
+ AC_CHECK_LIB(c, pthread_mutex_init,
+ tcl_ok=yes, tcl_ok=no)
+ if test "$tcl_ok" = "no"; then
+ AC_CHECK_LIB(c_r, pthread_mutex_init,
+ tcl_ok=yes, tcl_ok=no)
+ if test "$tcl_ok" = "yes"; then
+ # The space is needed
+ THREADS_LIBS=" -pthread"
+ else
+ AC_MSG_WARN([Don't know how to find pthread lib on your system - you must edit the LIBS in the Makefile...])
+ fi
+ fi
+ fi
+ fi
+
+ # Does the pthread-implementation provide
+ # 'pthread_attr_setstacksize' ?
+
+ ac_saved_libs=$LIBS
+ LIBS="$LIBS $THREADS_LIBS"
+ AC_CHECK_FUNCS(pthread_attr_setstacksize pthread_atfork)
+ LIBS=$ac_saved_libs
])
#--------------------------------------------------------------------
diff --git a/unix/tclUnixPort.h b/unix/tclUnixPort.h
index 86f1dd0..78f6ee4 100644
--- a/unix/tclUnixPort.h
+++ b/unix/tclUnixPort.h
@@ -602,10 +602,8 @@ extern char ** environ;
# undef HAVE_COPYFILE
# endif
# if MAC_OS_X_VERSION_MAX_ALLOWED < 1030
-# ifdef TCL_THREADS
- /* prior to 10.3, realpath is not threadsafe, c.f. bug 711232 */
-# define NO_REALPATH 1
-# endif
+ /* prior to 10.3, realpath is not threadsafe, c.f. bug 711232 */
+# define NO_REALPATH 1
# undef HAVE_LANGINFO
# endif
# endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
@@ -678,7 +676,7 @@ typedef int socklen_t;
#define TclpExit exit
-#ifdef TCL_THREADS
+#if !defined(TCL_THREADS) || TCL_THREADS
# include <pthread.h>
#endif /* TCL_THREADS */
diff --git a/win/configure b/win/configure
index 59bc5de..7ab33b0 100755
--- a/win/configure
+++ b/win/configure
@@ -707,7 +707,6 @@ CFLAGS_OPTIMIZE
CFLAGS_DEBUG
DL_LIBS
CYGPATH
-TCL_THREADS
SET_MAKE
RC
RANLIB
@@ -763,7 +762,6 @@ SHELL'
ac_subst_files=''
ac_user_opts='
enable_option_checking
-enable_threads
with_encoding
enable_shared
enable_64bit
@@ -1386,7 +1384,6 @@ Optional Features:
--disable-option-checking ignore unrecognized --enable/--with options
--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
- --enable-threads build with threads (default: on)
--enable-shared build and link with shared libraries (default: on)
--enable-64bit enable 64bit support (where applicable)
--enable-symbols build with debugging symbols (default: off)
@@ -3673,39 +3670,6 @@ fi
-#--------------------------------------------------------------------
-# Check whether --enable-threads or --disable-threads was given.
-#--------------------------------------------------------------------
-
-
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for building with threads" >&5
-$as_echo_n "checking for building with threads... " >&6; }
- # Check whether --enable-threads was given.
-if test "${enable_threads+set}" = set; then :
- enableval=$enable_threads; tcl_ok=$enableval
-else
- tcl_ok=yes
-fi
-
-
- if test "$tcl_ok" = "yes"; then
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes (default)" >&5
-$as_echo "yes (default)" >&6; }
- TCL_THREADS=1
- $as_echo "#define TCL_THREADS 1" >>confdefs.h
-
- # USE_THREAD_ALLOC tells us to try the special thread-based
- # allocator that significantly reduces lock contention
- $as_echo "#define USE_THREAD_ALLOC 1" >>confdefs.h
-
- else
- TCL_THREADS=0
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
- fi
-
-
-
#------------------------------------------------------------------------
# Embedded configuration information, encoding to use for the values, TIP #59
#------------------------------------------------------------------------
diff --git a/win/tcl.m4 b/win/tcl.m4
index 0e4a3a5..e2a2fb2 100644
--- a/win/tcl.m4
+++ b/win/tcl.m4
@@ -383,42 +383,6 @@ AC_DEFUN([SC_ENABLE_SHARED], [
])
#------------------------------------------------------------------------
-# SC_ENABLE_THREADS --
-#
-# Specify if thread support should be enabled
-#
-# Arguments:
-# none
-#
-# Results:
-#
-# Adds the following arguments to configure:
-# --enable-threads=yes|no
-#
-# Defines the following vars:
-# TCL_THREADS
-#------------------------------------------------------------------------
-
-AC_DEFUN([SC_ENABLE_THREADS], [
- AC_MSG_CHECKING(for building with threads)
- AC_ARG_ENABLE(threads, [ --enable-threads build with threads (default: on)],
- [tcl_ok=$enableval], [tcl_ok=yes])
-
- if test "$tcl_ok" = "yes"; then
- AC_MSG_RESULT([yes (default)])
- TCL_THREADS=1
- AC_DEFINE(TCL_THREADS)
- # USE_THREAD_ALLOC tells us to try the special thread-based
- # allocator that significantly reduces lock contention
- AC_DEFINE(USE_THREAD_ALLOC)
- else
- TCL_THREADS=0
- AC_MSG_RESULT(no)
- fi
- AC_SUBST(TCL_THREADS)
-])
-
-#------------------------------------------------------------------------
# SC_ENABLE_SYMBOLS --
#
# Specify if debugging symbols should be used.