* [PATCH] configure.ac: stronger test for pthread linkage
@ 2016-07-18 10:22 Eric Wong
0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2016-07-18 10:22 UTC (permalink / raw)
To: Junio C Hamano; +Cc: git
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 <e@80x24.org>
---
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
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