Import firmware compiler flags

Makefile

Index: Makefile
diff --git a/Makefile b/Makefile
index 36250fb67df56a76791c1e34ba88eab4887dc907..8566f06fb781aa11acdcefefef71a6d0f6974be3 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 export FIRMWARE_ARCH
+export FIRMWARE_CONFIG_PATH
 
 export CC ?= gcc
 export CXX ?= g++
@@ -15,7 +16,17 @@ endif
 ifeq (${DEBUG},)
 CFLAGS += -O3
 else
-CFLAGS += -O0 -g -DVBOOT_DEBUG
+CFLAGS += -O0
+endif

[robotboy, 2011/01/26 19:43:20]

Won't these CFLAGS be overridden by the include of FIRMWARE_CONFIG_PATH?

[Che-Liang Chiou, 2011/01/27 02:12:53]

They will if FIRMWARE_CONFIG_PATH is not empty.

I should reorder CFLAGS settings and add more comments here.

+
+# Include compiler flags if provided.  It is intended to override CC and CFLAGS
+# that is set before.  The CC and CFLAGS should not be overridden hereafter.
+ifneq ($(FIRMWARE_CONFIG_PATH),)
+include $(FIRMWARE_CONFIG_PATH)
+endif
+
+ifneq (${DEBUG},)
+CFLAGS += -g -DVBOOT_DEBUG
 endif
 
 ifeq (${DISABLE_NDEBUG},)