add _XOPEN_SOURCE 700 feature test macro to search.h tests

[libc-test] / src / functional / search_tsearch.c

diff --git a/src/functional/search_tsearch.c b/src/functional/search_tsearch.c
index 80fa5de..b79095f 100644 (file)
--- a/src/functional/search_tsearch.c
+++ b/src/functional/search_tsearch.c
@@ -1,3 +1,6 @@
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 700
+#endif
 #include <stdlib.h>
 #include <string.h>
 #include <search.h>