[PATCH] configure.ac: stronger test for pthread linkage
From: Eric Wong <hidden>
Date: 2016-07-18 10:22:14
Subsystem:
the rest · Maintainer:
Linus Torvalds
We need to test linkage of pthread_create and pthread_join, as pthread_mutex_* and pthread_key_* functions do not need extra linkage under FreeBSD 10.3, leading to a false-positive of the empty case. Signed-off-by: Eric Wong <redacted> --- configure.ac | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/configure.ac b/configure.ac
index c279025..aa9c91d 100644
--- a/configure.ac
+++ b/configure.ac@@ -1108,14 +1108,19 @@ GIT_CONF_SUBST([HAVE_BSD_SYSCTL]) AC_DEFUN([PTHREADTEST_SRC], [ AC_LANG_PROGRAM([[ #include <pthread.h> +static void *noop(void *ignore) { return ignore; } ]], [[ pthread_mutex_t test_mutex; pthread_key_t test_key; + pthread_t th; int retcode = 0; + void *ret = (void *)0; retcode |= pthread_key_create(&test_key, (void *)0); retcode |= pthread_mutex_init(&test_mutex,(void *)0); retcode |= pthread_mutex_lock(&test_mutex); retcode |= pthread_mutex_unlock(&test_mutex); + retcode |= pthread_create(&th, ret, noop, ret); + retcode |= pthread_join(th, &ret); return retcode; ]])])
--
EW