diff options
-rw-r--r-- | ChangeLog | 14 | ||||
-rw-r--r-- | macosx/tclMacOSXNotify.c | 115 | ||||
-rwxr-xr-x | unix/configure | 168 | ||||
-rw-r--r-- | unix/tcl.m4 | 87 | ||||
-rw-r--r-- | unix/tclConfig.h.in | 3 |
5 files changed, 309 insertions, 78 deletions
@@ -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 |