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-rw-r--r--libmudflap/mf-runtime.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libmudflap/mf-runtime.c b/libmudflap/mf-runtime.c
index 8b1cc74..c1f0a6a 100644
--- a/libmudflap/mf-runtime.c
+++ b/libmudflap/mf-runtime.c
@@ -136,7 +136,11 @@ pthread_mutex_t __mf_biglock =
the libmudflap.la (no threading support) can diagnose whether
the application is linked with -lpthread. See __mf_usage() below. */
#if HAVE_PTHREAD_H
+#ifdef _POSIX_THREADS
#pragma weak pthread_join
+#else
+#define pthread_join NULL
+#endif
const void *threads_active_p = (void *) pthread_join;
#endif