1 files changed, 2 insertions, 1 deletions
diff --git a/includes.h b/includes.h
index 351dd2ac..12d948b6 100644
--- a/includes.h
+++ b/includes.h
@@ -21,6 +21,8 @@ static /**/const char *const rcsid[] = { (const char *)rcsid, "\100(#)" msg }
 
 #include "config.h"
 
+#define _GNU_SOURCE /* activate extra prototypes for glibc */
+
 #include <stdarg.h>
 #include <stdio.h>
 #include <ctype.h>
@@ -67,7 +69,6 @@ static /**/const char *const rcsid[] = { (const char *)rcsid, "\100(#)" msg }
 #ifdef HAVE_NEXT
 #  include <libc.h>
 #endif
-#define __USE_GNU /* before unistd.h, activate extra prototypes for glibc */
 #include <unistd.h> /* For STDIN_FILENO, etc */
 #include <termios.h> /* Struct winsize */