[PATCH v3 25/30] tools: usb: Append extra cflags

[Leo Yan]

Append EXTRA_CFLAGS to CFLAGS so that additional flags can be applied to
the compiler.

Signed-off-by: Leo Yan <leo.yan@xxxxxxx>
---
 tools/usb/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/usb/Makefile b/tools/usb/Makefile
index c6235667dd46223b646bbab5c82c810221750182..db2ff5b8e5ab7b76e424df32ed5a9458daa5d516 100644
--- a/tools/usb/Makefile
+++ b/tools/usb/Makefile
@@ -13,6 +13,7 @@ endif
 # (this improves performance and avoids hard-to-debug behaviour);
 MAKEFLAGS += -r
 
+override CFLAGS += $(EXTRA_CFLAGS)
 override CFLAGS += -O2 -Wall -Wextra -g -D_GNU_SOURCE -I$(OUTPUT)include -I$(srctree)/tools/include
 override LDFLAGS += -lpthread
 

-- 
2.34.1