From 01c1fae327c7ad5f3ed03513e7032d4875d26eb1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
Date: Fri, 5 Jul 2013 17:25:59 +0300
Subject: [PATCH] build: honor CPPFLAGS

---
 Make.rules | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Make.rules b/Make.rules
index 9fd4862..0f072d1 100644
--- a/Make.rules
+++ b/Make.rules
@@ -174,8 +174,8 @@ if_changed_rule = $(if $(strip $(any-prereq) $(arg-check) ),                 \
 #####
 # Handle options to gcc.
 
-c_flags		= -Wp,-MD,$(depfile),-MT,$@ $(CFLAGS_ALL) $(CFLAGS_EXTRA) \
-		  $(CFLAGS_$(notdir $@))
+c_flags		= -Wp,-MD,$(depfile),-MT,$@ $(CPPFLAGS) \
+		  $(CFLAGS_ALL) $(CFLAGS_EXTRA) $(CFLAGS_$(notdir $@))
 ld_flags	= $(LDFLAGS_ALL) $(LDFLAGS_EXTRA) $(LDFLAGS_$(notdir $@))
 
 #####