This make it easier for passing extra cflags, for example hardening
flags could be passed in with enviroment variable.

Signed-off-by: Kairui Song <kas...@redhat.com>
---
 Makefile | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index 612b9d0..b511a78 100644
--- a/Makefile
+++ b/Makefile
@@ -8,11 +8,11 @@ ifeq ($(strip $CC),)
 CC     = gcc
 endif
 
-CFLAGS = -g -O2 -Wall -D_FILE_OFFSET_BITS=64 \
-         -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE \
-         -DVERSION='"$(VERSION)"' -DRELEASE_DATE='"$(DATE)"'
-CFLAGS_ARCH    = -g -O2 -Wall -D_FILE_OFFSET_BITS=64 \
-                   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
+CFLAGS_ARCH = $(CFLAGS) -g -O2 -Wall -D_FILE_OFFSET_BITS=64 \
+             -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
+CFLAGS += -g -O2 -Wall -D_FILE_OFFSET_BITS=64 \
+        -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE \
+        -DVERSION='"$(VERSION)"' -DRELEASE_DATE='"$(DATE)"'
 # LDFLAGS = -L/usr/local/lib -I/usr/local/include
 
 HOST_ARCH := $(shell uname -m)
-- 
2.20.1


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