Undeffing unix.

GCC defines, for historic reasons, unix as a numeric constant.
https://gcc.gnu.org/onlinedocs/cpp/System-specific-Predefined-Macros.html

diff --git a/nest/bird.h b/nest/bird.h
index 55712abe82450c0d050846168f6f6a7a144bc976..272e4f7fd0e0eaa06871a36d91232cf96fe67085 100644 (file)
--- a/nest/bird.h
+++ b/nest/bird.h
@@ -9,6 +9,8 @@
 #ifndef _BIRD_BIRD_H_
 #define _BIRD_BIRD_H_
 
+#undef unix /* An unneeded ancient C quirk */
+
 #include "sysdep/config.h"
 #include "lib/birdlib.h"
 #include "lib/ip.h"