Makefile: move cpp related flags from CFLAGS to CPPFLAGS

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/Makefile b/Makefile
index ab99746ade877507701632e9af1632c2e8fc6c5a..7f5c12967dd48a6d54dd5270b8fad9ccecd8ced8 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -43,8 +43,10 @@ PREFIX ?= /usr/local
 
 MAKEFLAGS = -k
 
-CFLAGS    = -O2 -Wall -Wno-parentheses -Iinclude \
-           -fno-strict-aliasing \
+CFLAGS    = -O2 -Wall -Wno-parentheses \
+           -fno-strict-aliasing
+
+CPPFLAGS += -Iinclude \
            -DSO_RXQ_OVFL=40 \
            -DPF_CAN=29 \
            -DAF_CAN=PF_CAN