configure: Use AC_GNU_SOURCE

[petitboot] / ui / ncurses / nc-menu.c

diff --git a/ui/ncurses/nc-menu.c b/ui/ncurses/nc-menu.c
index eb7cfdff0d942562333a664dfe145b4555e03e6b..d2048e1c3561591bd615a82fcb57ef58b36e27b0 100644 (file)
--- a/ui/ncurses/nc-menu.c
+++ b/ui/ncurses/nc-menu.c
@@ -16,9 +16,9 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#if defined(HAVE_CONFIG_H)
 #include "config.h"
-
-#define _GNU_SOURCE
+#endif
 
 #include <assert.h>
 #include <errno.h>