features.h: undef before define

Change-Id: Iba98e3a8352801345acefe963917471992f70281 Reviewed-on: https://review.haiku-os.org/c/haiku/+/3606 Reviewed-by: Adrien Destugues <[email protected]>
2021-01-07 09:14:57 +00:00
parent e9a5037fba
commit 0db785d66c
1 changed files with 2 additions and 0 deletions
@@ -8,11 +8,13 @@

 #if defined(_BSD_SOURCE) \
 	|| (!defined(__STRICT_ANSI__) && !defined(_POSIX_C_SOURCE))
+	#undef _DEFAULT_SOURCE
 	#define _DEFAULT_SOURCE
 #endif


 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
+	#undef _ISOC11_SOURCE
 	#define _ISOC11_SOURCE
 #endif