diff options
Diffstat (limited to 'gnulib-m4/pthread-mutex.m4')
| -rw-r--r-- | gnulib-m4/pthread-mutex.m4 | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gnulib-m4/pthread-mutex.m4 b/gnulib-m4/pthread-mutex.m4 new file mode 100644 index 00000000..7a0ea0f2 --- /dev/null +++ b/gnulib-m4/pthread-mutex.m4 @@ -0,0 +1,72 @@ +# pthread-mutex.m4 +# serial 4 +dnl Copyright (C) 2019-2024 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_PTHREAD_MUTEX], +[ + AC_REQUIRE([gl_PTHREAD_H]) + AC_REQUIRE([AC_CANONICAL_HOST]) + + if { case "$host_os" in mingw* | windows*) true;; *) false;; esac; } \ + && test $gl_threads_api = windows; then + dnl Choose function names that don't conflict with the mingw-w64 winpthreads + dnl library. + REPLACE_PTHREAD_MUTEX_INIT=1 + REPLACE_PTHREAD_MUTEXATTR_INIT=1 + REPLACE_PTHREAD_MUTEXATTR_GETTYPE=1 + REPLACE_PTHREAD_MUTEXATTR_SETTYPE=1 + REPLACE_PTHREAD_MUTEXATTR_GETROBUST=1 + REPLACE_PTHREAD_MUTEXATTR_SETROBUST=1 + REPLACE_PTHREAD_MUTEXATTR_DESTROY=1 + REPLACE_PTHREAD_MUTEX_LOCK=1 + REPLACE_PTHREAD_MUTEX_TRYLOCK=1 + REPLACE_PTHREAD_MUTEX_TIMEDLOCK=1 + REPLACE_PTHREAD_MUTEX_UNLOCK=1 + REPLACE_PTHREAD_MUTEX_DESTROY=1 + else + if test $HAVE_PTHREAD_H = 0; then + HAVE_PTHREAD_MUTEX_INIT=0 + HAVE_PTHREAD_MUTEXATTR_INIT=0 + HAVE_PTHREAD_MUTEXATTR_GETTYPE=0 + HAVE_PTHREAD_MUTEXATTR_SETTYPE=0 + HAVE_PTHREAD_MUTEXATTR_GETROBUST=0 + HAVE_PTHREAD_MUTEXATTR_SETROBUST=0 + HAVE_PTHREAD_MUTEXATTR_DESTROY=0 + HAVE_PTHREAD_MUTEX_LOCK=0 + HAVE_PTHREAD_MUTEX_TRYLOCK=0 + dnl HAVE_PTHREAD_MUTEX_TIMEDLOCK is set in pthread_mutex_timedlock.m4. + HAVE_PTHREAD_MUTEX_UNLOCK=0 + HAVE_PTHREAD_MUTEX_DESTROY=0 + else + AC_CACHE_CHECK([for pthread_mutexattr_getrobust], + [gl_cv_func_pthread_mutexattr_getrobust], + [saved_LIBS="$LIBS" + LIBS="$LIBS $LIBPMULTITHREAD" + AC_LINK_IFELSE( + [AC_LANG_SOURCE( + [[extern + #ifdef __cplusplus + "C" + #endif + int pthread_mutexattr_getrobust (void); + int main () + { + return pthread_mutexattr_getrobust (); + } + ]])], + [gl_cv_func_pthread_mutexattr_getrobust=yes], + [gl_cv_func_pthread_mutexattr_getrobust=no]) + LIBS="$saved_LIBS" + ]) + if test $gl_cv_func_pthread_mutexattr_getrobust = no; then + HAVE_PTHREAD_MUTEXATTR_GETROBUST=0 + HAVE_PTHREAD_MUTEXATTR_SETROBUST=0 + AC_DEFINE([PTHREAD_MUTEXATTR_ROBUST_UNIMPLEMENTED], [1], + [Define if the 'robust' attribute of pthread_mutex* doesn't exist.]) + fi + fi + fi +]) |