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-rw-r--r--ChangeLog14
-rw-r--r--macosx/tclMacOSXNotify.c115
-rwxr-xr-xunix/configure168
-rw-r--r--unix/tcl.m487
-rw-r--r--unix/tclConfig.h.in3
5 files changed, 309 insertions, 78 deletions
diff --git a/ChangeLog b/ChangeLog
index f9117d9..1165dae 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,17 @@
+2006-05-27 Daniel Steffen <das@users.sourceforge.net>
+
+ * macosx/tclMacOSXNotify.c: implemented pthread_atfork() handler that
+ * unix/tcl.m4 (Darwin): recreates CoreFoundation state and notifier
+ thread in the child after a fork(). Note that pthread_atfork() is
+ available starting with Tiger only. Because vfork() is used by the core
+ on Darwin, [exec]/[open] are not affected by this fix, only extensions
+ or embedders that call fork() directly (such as TclX). However, this
+ only makes fork() safe from corefoundation tcl with --disable-threads;
+ as on all platforms, forked children may deadlock in threaded tcl due to
+ the potential for stale locked mutexes in the child. [Patch 923072]
+ * unix/configure: autoconf-2.59
+ * unix/tclConfig.h.in: autoheader-2.59
+
2006-05-24 Donal K. Fellows <donal.k.fellows@manchester.ac.uk>
* unix/tcl.m4 (SC_CONFIG_SYSTEM): Fixed quoting of command script to
diff --git a/macosx/tclMacOSXNotify.c b/macosx/tclMacOSXNotify.c
index a5e9627..a99e11b 100644
--- a/macosx/tclMacOSXNotify.c
+++ b/macosx/tclMacOSXNotify.c
@@ -8,12 +8,12 @@
* Copyright (c) 1995-1997 Sun Microsystems, Inc.
* Copyright 2001, Apple Computer, Inc.
* Copyright (c) 2005 Tcl Core Team.
- * Copyright (c) 2005 Daniel A. Steffen <das@users.sourceforge.net>
+ * Copyright (c) 2005-2006 Daniel A. Steffen <das@users.sourceforge.net>
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclMacOSXNotify.c,v 1.6 2005/11/27 02:33:49 das Exp $
+ * RCS: @(#) $Id: tclMacOSXNotify.c,v 1.7 2006/05/27 05:22:58 das Exp $
*/
#include "tclInt.h"
@@ -216,6 +216,13 @@ static pthread_t notifierThread;
static void NotifierThreadProc(ClientData clientData);
static int FileHandlerEventProc(Tcl_Event *evPtr, int flags);
+
+#ifdef HAVE_PTHREAD_ATFORK
+static int atForkInit = 0;
+static void AtForkPrepare(void);
+static void AtForkParent(void);
+static void AtForkChild(void);
+#endif
/*
*----------------------------------------------------------------------
@@ -225,7 +232,7 @@ static int FileHandlerEventProc(Tcl_Event *evPtr, int flags);
* Initializes the platform specific notifier state.
*
* Results:
- * Returns a handle to the notifier state for this thread..
+ * Returns a handle to the notifier state for this thread.
*
* Side effects:
* None.
@@ -265,6 +272,20 @@ Tcl_InitNotifier(void)
*/
LOCK_NOTIFIER_INIT;
+#ifdef HAVE_PTHREAD_ATFORK
+ /*
+ * Install pthread_atfork handlers to reinstall the notifier thread in the
+ * child of a fork.
+ */
+
+ if (!atForkInit) {
+ int result = pthread_atfork(AtForkPrepare, AtForkParent, AtForkChild);
+ if (result) {
+ Tcl_Panic("Tcl_InitNotifier: pthread_atfork failed");
+ }
+ atForkInit = 1;
+ }
+#endif
if (notifierCount == 0) {
int fds[2], status, result;
pthread_attr_t attr;
@@ -1058,6 +1079,94 @@ NotifierThreadProc(
}
pthread_exit (0);
}
+
+#ifdef HAVE_PTHREAD_ATFORK
+/*
+ *----------------------------------------------------------------------
+ *
+ * AtForkPrepare --
+ *
+ * Lock the notifier in preparation for a fork.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+AtForkPrepare(void)
+{
+ LOCK_NOTIFIER_INIT;
+ LOCK_NOTIFIER;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * AtForkParent --
+ *
+ * Unlock the notifier in the parent after a fork.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+AtForkParent(void)
+{
+ UNLOCK_NOTIFIER;
+ UNLOCK_NOTIFIER_INIT;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * AtForkChild --
+ *
+ * Unlock and reinstall the notifier in the child after a fork.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+AtForkChild(void)
+{
+ ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+
+ UNLOCK_NOTIFIER;
+ UNLOCK_NOTIFIER_INIT;
+ if (tsdPtr->runLoop) {
+ tsdPtr->runLoop = NULL;
+ CFRunLoopSourceInvalidate(tsdPtr->runLoopSource);
+ CFRelease(tsdPtr->runLoopSource);
+ tsdPtr->runLoopSource = NULL;
+ }
+ if (notifierCount > 0) {
+ notifierCount = 0;
+ /* Note that Tcl_FinalizeNotifier does not use its clientData
+ * parameter, so discard return value of Tcl_InitNotifier here and
+ * leave stale clientData in tclNotify.c's ThreadSpecificData.
+ */
+ Tcl_InitNotifier();
+ }
+}
+#endif /* HAVE_PTHREAD_ATFORK */
+
#endif /* HAVE_COREFOUNDATION */
/*
diff --git a/unix/configure b/unix/configure
index 4b8a6ea..3731800 100755
--- a/unix/configure
+++ b/unix/configure
@@ -7194,8 +7194,8 @@ echo "${ECHO_T}$tcl_cv_ld_elf" >&6
CFLAGS_OPTIMIZE="-Os"
SHLIB_CFLAGS="-fno-common"
if test $do64bit = yes; then
- do64bit_ok=yes
- CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+ do64bit_ok=yes
+ CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
fi
SHLIB_LD='${CC} -dynamiclib ${CFLAGS} ${LDFLAGS}'
echo "$as_me:$LINENO: checking if ld accepts -single_module flag" >&5
@@ -7204,9 +7204,9 @@ if test "${tcl_cv_ld_single_module+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
- hold_ldflags=$LDFLAGS
- LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
- cat >conftest.$ac_ext <<_ACEOF
+ hold_ldflags=$LDFLAGS
+ LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
+ cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
@@ -7252,12 +7252,12 @@ tcl_cv_ld_single_module=no
fi
rm -f conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
- LDFLAGS=$hold_ldflags
+ LDFLAGS=$hold_ldflags
fi
echo "$as_me:$LINENO: result: $tcl_cv_ld_single_module" >&5
echo "${ECHO_T}$tcl_cv_ld_single_module" >&6
if test $tcl_cv_ld_single_module = yes; then
- SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
+ SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
fi
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".dylib"
@@ -7274,9 +7274,9 @@ if test "${tcl_cv_ld_search_paths_first+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
- hold_ldflags=$LDFLAGS
- LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
- cat >conftest.$ac_ext <<_ACEOF
+ hold_ldflags=$LDFLAGS
+ LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+ cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
@@ -7322,45 +7322,45 @@ tcl_cv_ld_search_paths_first=no
fi
rm -f conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
- LDFLAGS=$hold_ldflags
+ LDFLAGS=$hold_ldflags
fi
echo "$as_me:$LINENO: result: $tcl_cv_ld_search_paths_first" >&5
echo "${ECHO_T}$tcl_cv_ld_search_paths_first" >&6
if test $tcl_cv_ld_search_paths_first = yes; then
- LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+ LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
fi
CC_SEARCH_FLAGS=""
LD_SEARCH_FLAGS=""
LD_LIBRARY_PATH_VAR="DYLD_LIBRARY_PATH"
PLAT_OBJS='${MAC_OSX_OBJS}'
PLAT_SRCS='${MAC_OSX_SRCS}'
- echo "$as_me:$LINENO: checking whether to use CoreFoundation" >&5
+ echo "$as_me:$LINENO: checking whether to use CoreFoundation" >&5
echo $ECHO_N "checking whether to use CoreFoundation... $ECHO_C" >&6
- # Check whether --enable-corefoundation or --disable-corefoundation was given.
+ # Check whether --enable-corefoundation or --disable-corefoundation was given.
if test "${enable_corefoundation+set}" = set; then
enableval="$enable_corefoundation"
tcl_corefoundation=$enableval
else
tcl_corefoundation=yes
fi;
- echo "$as_me:$LINENO: result: $tcl_corefoundation" >&5
+ echo "$as_me:$LINENO: result: $tcl_corefoundation" >&5
echo "${ECHO_T}$tcl_corefoundation" >&6
- if test $tcl_corefoundation = yes; then
- echo "$as_me:$LINENO: checking for CoreFoundation.framework" >&5
+ if test $tcl_corefoundation = yes; then
+ echo "$as_me:$LINENO: checking for CoreFoundation.framework" >&5
echo $ECHO_N "checking for CoreFoundation.framework... $ECHO_C" >&6
if test "${tcl_cv_lib_corefoundation+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
- hold_libs=$LIBS; hold_cflags=$CFLAGS
- if test $do64bit_ok = no ; then
- # remove -arch ppc64 from CFLAGS while testing presence
- # of CF, otherwise all archs will have CF disabled.
- # CF for ppc64 is disabled in tclUnixPort.h instead.
- CFLAGS="`echo "$CFLAGS" | sed -e 's/-arch ppc64/-arch ppc/'`"
- fi
- LIBS="$LIBS -framework CoreFoundation"
- cat >conftest.$ac_ext <<_ACEOF
+ hold_libs=$LIBS; hold_cflags=$CFLAGS
+ if test $do64bit_ok = no ; then
+ # remove -arch ppc64 from CFLAGS while testing presence
+ # of CF, otherwise all archs will have CF disabled.
+ # CF for ppc64 is disabled in tclUnixPort.h instead.
+ CFLAGS="`echo "$CFLAGS" | sed -e 's/-arch ppc64/-arch ppc/'`"
+ fi
+ LIBS="$LIBS -framework CoreFoundation"
+ cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
@@ -7406,19 +7406,17 @@ tcl_cv_lib_corefoundation=no
fi
rm -f conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
- LIBS=$hold_libs; CFLAGS=$hold_cflags
+ LIBS=$hold_libs; CFLAGS=$hold_cflags
fi
echo "$as_me:$LINENO: result: $tcl_cv_lib_corefoundation" >&5
echo "${ECHO_T}$tcl_cv_lib_corefoundation" >&6
- if test $tcl_cv_lib_corefoundation = yes; then
- LIBS="$LIBS -framework CoreFoundation"
+ if test $tcl_cv_lib_corefoundation = yes; then
+ LIBS="$LIBS -framework CoreFoundation"
cat >>confdefs.h <<\_ACEOF
#define HAVE_COREFOUNDATION 1
_ACEOF
- fi
- fi
for ac_header in libkern/OSAtomic.h
do
@@ -7672,6 +7670,110 @@ fi
done
+for ac_func in pthread_atfork
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+ fi
+ fi
+
for ac_header in copyfile.h
do
as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
@@ -8042,8 +8144,8 @@ echo "$as_me:$LINENO: result: $ac_cv_func_realpath" >&5
echo "${ECHO_T}$ac_cv_func_realpath" >&6
if test $ac_cv_func_realpath = yes -a "${TCL_THREADS}" = 1 \
- -a `uname -r | awk -F. '{print $1}'` -lt 7 ; then
- ac_cv_func_realpath=no
+ -a `uname -r | awk -F. '{print $1}'` -lt 7 ; then
+ ac_cv_func_realpath=no
fi
;;
NEXTSTEP-*)
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index 11197a9..3b2e228 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -1559,17 +1559,17 @@ dnl AC_CHECK_TOOL(AR, ar)
CFLAGS_OPTIMIZE="-Os"
SHLIB_CFLAGS="-fno-common"
if test $do64bit = yes; then
- do64bit_ok=yes
- CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
+ do64bit_ok=yes
+ CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
fi
SHLIB_LD='${CC} -dynamiclib ${CFLAGS} ${LDFLAGS}'
AC_CACHE_CHECK([if ld accepts -single_module flag], tcl_cv_ld_single_module, [
- hold_ldflags=$LDFLAGS
- LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
- AC_TRY_LINK(, [int i;], tcl_cv_ld_single_module=yes, tcl_cv_ld_single_module=no)
- LDFLAGS=$hold_ldflags])
+ hold_ldflags=$LDFLAGS
+ LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
+ AC_TRY_LINK(, [int i;], tcl_cv_ld_single_module=yes, tcl_cv_ld_single_module=no)
+ LDFLAGS=$hold_ldflags])
if test $tcl_cv_ld_single_module = yes; then
- SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
+ SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
fi
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".dylib"
@@ -1581,60 +1581,63 @@ dnl AC_CHECK_TOOL(AR, ar)
LDFLAGS="$LDFLAGS -prebind"
LDFLAGS="$LDFLAGS -headerpad_max_install_names"
AC_CACHE_CHECK([if ld accepts -search_paths_first flag], tcl_cv_ld_search_paths_first, [
- hold_ldflags=$LDFLAGS
- LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
- AC_TRY_LINK(, [int i;], tcl_cv_ld_search_paths_first=yes, tcl_cv_ld_search_paths_first=no)
- LDFLAGS=$hold_ldflags])
+ hold_ldflags=$LDFLAGS
+ LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+ AC_TRY_LINK(, [int i;], tcl_cv_ld_search_paths_first=yes, tcl_cv_ld_search_paths_first=no)
+ LDFLAGS=$hold_ldflags])
if test $tcl_cv_ld_search_paths_first = yes; then
- LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
+ LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
fi
CC_SEARCH_FLAGS=""
LD_SEARCH_FLAGS=""
LD_LIBRARY_PATH_VAR="DYLD_LIBRARY_PATH"
PLAT_OBJS='${MAC_OSX_OBJS}'
PLAT_SRCS='${MAC_OSX_SRCS}'
- AC_MSG_CHECKING([whether to use CoreFoundation])
- AC_ARG_ENABLE(corefoundation,
+ AC_MSG_CHECKING([whether to use CoreFoundation])
+ AC_ARG_ENABLE(corefoundation,
AC_HELP_STRING([--enable-corefoundation],
[use CoreFoundation API on MacOSX (default: yes)]),
- [tcl_corefoundation=$enableval], [tcl_corefoundation=yes])
- AC_MSG_RESULT([$tcl_corefoundation])
- if test $tcl_corefoundation = yes; then
- AC_CACHE_CHECK([for CoreFoundation.framework], tcl_cv_lib_corefoundation, [
- hold_libs=$LIBS; hold_cflags=$CFLAGS
- if test $do64bit_ok = no ; then
- # remove -arch ppc64 from CFLAGS while testing presence
- # of CF, otherwise all archs will have CF disabled.
- # CF for ppc64 is disabled in tclUnixPort.h instead.
- CFLAGS="`echo "$CFLAGS" | sed -e 's/-arch ppc64/-arch ppc/'`"
- fi
- LIBS="$LIBS -framework CoreFoundation"
- AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
- [CFBundleRef b = CFBundleGetMainBundle();],
- tcl_cv_lib_corefoundation=yes, tcl_cv_lib_corefoundation=no)
- LIBS=$hold_libs; CFLAGS=$hold_cflags])
- if test $tcl_cv_lib_corefoundation = yes; then
- LIBS="$LIBS -framework CoreFoundation"
- AC_DEFINE(HAVE_COREFOUNDATION, 1,
- [Do we have access to Darwin CoreFoundation.framework ?])
- fi
+ [tcl_corefoundation=$enableval], [tcl_corefoundation=yes])
+ AC_MSG_RESULT([$tcl_corefoundation])
+ if test $tcl_corefoundation = yes; then
+ AC_CACHE_CHECK([for CoreFoundation.framework], tcl_cv_lib_corefoundation, [
+ hold_libs=$LIBS; hold_cflags=$CFLAGS
+ if test $do64bit_ok = no ; then
+ # remove -arch ppc64 from CFLAGS while testing presence
+ # of CF, otherwise all archs will have CF disabled.
+ # CF for ppc64 is disabled in tclUnixPort.h instead.
+ CFLAGS="`echo "$CFLAGS" | sed -e 's/-arch ppc64/-arch ppc/'`"
+ fi
+ LIBS="$LIBS -framework CoreFoundation"
+ AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
+ [CFBundleRef b = CFBundleGetMainBundle();],
+ tcl_cv_lib_corefoundation=yes, tcl_cv_lib_corefoundation=no)
+ LIBS=$hold_libs; CFLAGS=$hold_cflags])
+ if test $tcl_cv_lib_corefoundation = yes; then
+ LIBS="$LIBS -framework CoreFoundation"
+ AC_DEFINE(HAVE_COREFOUNDATION, 1,
+ [Do we have access to Darwin CoreFoundation.framework ?])
+ AC_CHECK_HEADERS(libkern/OSAtomic.h)
+ AC_CHECK_FUNCS(OSSpinLockLock)
+ AC_CHECK_FUNCS(pthread_atfork)
+ fi
fi
- AC_CHECK_HEADERS(libkern/OSAtomic.h)
- AC_CHECK_FUNCS(OSSpinLockLock)
AC_CHECK_HEADERS(copyfile.h)
AC_CHECK_FUNCS(copyfile)
AC_DEFINE(MAC_OSX_TCL, 1, [Is this a Mac I see before me?])
AC_DEFINE(USE_VFORK, 1, [Should we use vfork() instead of fork()?])
- AC_DEFINE(TCL_DEFAULT_ENCODING,"utf-8",
+ AC_DEFINE(TCL_DEFAULT_ENCODING, "utf-8",
[Are we to override what our default encoding is?])
- AC_DEFINE(MODULE_SCOPE, __private_extern__, [Linker support for module scope symbols])
- AC_DEFINE(TCL_LOAD_FROM_MEMORY, 1, [Can this platform load code from memory?])
+ AC_DEFINE(MODULE_SCOPE, __private_extern__,
+ [Linker support for module scope symbols])
+ AC_DEFINE(TCL_LOAD_FROM_MEMORY, 1,
+ [Can this platform load code from memory?])
# prior to Darwin 7, realpath is not threadsafe, so don't
# use it when threads are enabled, c.f. bug # 711232:
AC_CHECK_FUNC(realpath)
if test $ac_cv_func_realpath = yes -a "${TCL_THREADS}" = 1 \
- -a `uname -r | awk -F. '{print [$]1}'` -lt 7 ; then
- ac_cv_func_realpath=no
+ -a `uname -r | awk -F. '{print [$]1}'` -lt 7 ; then
+ ac_cv_func_realpath=no
fi
;;
NEXTSTEP-*)
diff --git a/unix/tclConfig.h.in b/unix/tclConfig.h.in
index 348dedb..2e3d21f 100644
--- a/unix/tclConfig.h.in
+++ b/unix/tclConfig.h.in
@@ -76,6 +76,9 @@
/* Define to 1 if you have the `OSSpinLockLock' function. */
#undef HAVE_OSSPINLOCKLOCK
+/* Define to 1 if you have the `pthread_atfork' function. */
+#undef HAVE_PTHREAD_ATFORK
+
/* Do we want a BSD-like thread-attribute interface? */
#undef HAVE_PTHREAD_ATTR_GET_NP