misc: only define _GNU_SOURCE if not defined

C++ compilers on Linux (g++, clang++) appear to always define this.
4 months ago · 23eaa65185
parent ff0d609a9f
commit 23eaa65185
1 changed files with 3 additions and 0 deletions
--- a/src/suricata-common.h
+++ b/src/suricata-common.h
@ -30,7 +30,10 @@
 #define DBG_PERF
 #endif

+#ifndef _GNU_SOURCE
 #define _GNU_SOURCE
+#endif
+
 #define __USE_GNU

 #if defined(__clang_analyzer__)