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# pthread-thread.m4
# serial 3
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_THREAD],
[
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_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
])
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