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-rw-r--r--gnulib-m4/pthread-thread.m469
1 files changed, 69 insertions, 0 deletions
diff --git a/gnulib-m4/pthread-thread.m4 b/gnulib-m4/pthread-thread.m4
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+++ b/gnulib-m4/pthread-thread.m4
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+# pthread-thread.m4 serial 2
+dnl Copyright (C) 2019-2022 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_THREAD],
+[
+ AC_REQUIRE([gl_PTHREAD_H])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ if { case "$host_os" in mingw*) 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_CREATE=1
+ REPLACE_PTHREAD_ATTR_INIT=1
+ REPLACE_PTHREAD_ATTR_GETDETACHSTATE=1
+ REPLACE_PTHREAD_ATTR_SETDETACHSTATE=1
+ REPLACE_PTHREAD_ATTR_DESTROY=1
+ REPLACE_PTHREAD_SELF=1
+ REPLACE_PTHREAD_EQUAL=1
+ REPLACE_PTHREAD_DETACH=1
+ REPLACE_PTHREAD_JOIN=1
+ REPLACE_PTHREAD_EXIT=1
+ else
+ if test $HAVE_PTHREAD_H = 0; then
+ HAVE_PTHREAD_CREATE=0
+ HAVE_PTHREAD_ATTR_INIT=0
+ HAVE_PTHREAD_ATTR_GETDETACHSTATE=0
+ HAVE_PTHREAD_ATTR_SETDETACHSTATE=0
+ HAVE_PTHREAD_ATTR_DESTROY=0
+ HAVE_PTHREAD_SELF=0
+ HAVE_PTHREAD_EQUAL=0
+ HAVE_PTHREAD_DETACH=0
+ HAVE_PTHREAD_JOIN=0
+ HAVE_PTHREAD_EXIT=0
+ else
+ dnl On HP-UX 11.11, pthread_create() and pthread_attr_init() are only
+ dnl defined as inline functions.
+ AC_CACHE_CHECK([whether pthread_create exists as a global function],
+ [gl_cv_func_pthread_create],
+ [saved_LIBS="$LIBS"
+ LIBS="$LIBS $LIBPMULTITHREAD"
+ AC_LINK_IFELSE(
+ [AC_LANG_SOURCE(
+ [[extern
+ #ifdef __cplusplus
+ "C"
+ #endif
+ int pthread_create (void);
+ int main ()
+ {
+ return pthread_create ();
+ }
+ ]])],
+ [gl_cv_func_pthread_create=yes],
+ [gl_cv_func_pthread_create=no])
+ LIBS="$saved_LIBS"
+ ])
+ if test $gl_cv_func_pthread_create = no; then
+ REPLACE_PTHREAD_CREATE=1
+ REPLACE_PTHREAD_ATTR_INIT=1
+ AC_DEFINE([PTHREAD_CREATE_IS_INLINE], [1],
+ [Define if pthread_create is an inline function.])
+ fi
+ fi
+ fi
+])