configure: Define feature test macros for --std=gnu99

[x264] / encoder / ratecontrol.c

diff --git a/encoder/ratecontrol.c b/encoder/ratecontrol.c
index 22eddb0c8ee05109da3acf292376510350c0b88b..436f35501707b347eea10131a1e5b5a61d5e8e43 100644 (file)
--- a/encoder/ratecontrol.c
+++ b/encoder/ratecontrol.c
@@ -27,7 +27,6 @@
  * For more information, contact us at licensing@x264.com.
  *****************************************************************************/
 
-#define _ISOC99_SOURCE
 #undef NDEBUG // always check asserts, the speed effect is far too small to disable them
 
 #include "common/common.h"