Use CPP flags here.

diff --git a/mk/os-Linux.mk b/mk/os-Linux.mk
index 4c66253558bc4fd51c6fd89e6530633fe5cd0532..af3c16ad5371c5ecc735c5ecd2ed51df74380722 100644 (file)
--- a/mk/os-Linux.mk
+++ b/mk/os-Linux.mk
@@ -4,7 +4,7 @@
 SRC_PF=                lpf.c
 SRC_IF=                if-linux.c
 
-CFLAGS+=       -D_BSD_SOURCE -D_XOPEN_SOURCE=600
+CPPFLAGS+=     -D_BSD_SOURCE -D_XOPEN_SOURCE=600
 LIBRT=         -lrt
 
 # Satisfy FHS