rewrite popen to use posix_spawn instead of fragile vfork hacks

[musl] / src / stdio / vasprintf.c

diff --git a/src/stdio/vasprintf.c b/src/stdio/vasprintf.c
index f2bbc7a..68b7246 100644 (file)
--- a/src/stdio/vasprintf.c
+++ b/src/stdio/vasprintf.c
@@ -1,3 +1,4 @@
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <stdarg.h>
 #include <stdlib.h>