From 5b3c8e9950262fc941bb5b3b3a1275720d47d62d Mon Sep 17 00:00:00 2001
From: Jean Delvare <jdelvare@suse.de>
Date: Fri, 17 Apr 2020 17:14:15 +0200
Subject: [PATCH 23/23] Allow overriding build settings from the environment

Let packagers pass their own CC, CFLAGS and LDFLAGS settings. The
settings which are specific to dmidecode are appended later so that
they are applied no matter what.

This should fix bug #55805:
https://savannah.nongnu.org/bugs/?55805

Signed-off-by: Jean Delvare <jdelvare@suse.de>
---
 Makefile | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/Makefile b/Makefile
index 194a523bdb46..7aa729d8ca01 100644
--- a/Makefile
+++ b/Makefile
@@ -12,8 +12,13 @@
 #   (at your option) any later version.
 #
 
-CC      = gcc
-CFLAGS  = -W -Wall -Wshadow -Wstrict-prototypes -Wpointer-arith -Wcast-qual \
+CC     ?= gcc
+# Base CFLAGS can be overridden by environment
+CFLAGS ?= -O2
+# When debugging, disable -O2 and enable -g
+#CFLAGS ?= -g
+
+CFLAGS += -W -Wall -Wshadow -Wstrict-prototypes -Wpointer-arith -Wcast-qual \
           -Wcast-align -Wwrite-strings -Wmissing-prototypes -Winline -Wundef
 
 # Let lseek and mmap support 64-bit wide offsets
@@ -22,12 +27,8 @@ CFLAGS += -D_FILE_OFFSET_BITS=64
 #CFLAGS += -DBIGENDIAN
 #CFLAGS += -DALIGNMENT_WORKAROUND
 
-# When debugging, disable -O2 and enable -g.
-CFLAGS += -O2
-#CFLAGS += -g
-
-# Pass linker flags here
-LDFLAGS =
+# Pass linker flags here (can be set from environment too)
+LDFLAGS ?=
 
 DESTDIR =
 prefix  = /usr/local
-- 
2.17.1