add feature test macro to allow usage of strnlen()

madroach · Dec 13, 2019 · 0a08762 · 0a08762
1 parent 97ff56a
commit 0a08762
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/zlib_stubs.c b/src/zlib_stubs.c
@@ -14,6 +14,7 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+#define _POSIX_C_SOURCE 200809L
 
 #include <stdio.h>
 #include <stdlib.h>