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From 014a8e04a0fa775b2ade78e5f7655a1453375884 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 10 Feb 2016 23:31:12 +0100
Subject: [PATCH] Makefile: allow passing custom CFLAGS/CPPFLAGS
vpnc's Makefile specifies some CFLAGS and CPPFLAGS value, but it may
be needed to pass additional custom flags on the make command line. To
make this possible, we switch from a plain += operator to the
"override ... +=" operator.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
Makefile | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/Makefile b/Makefile
index e80ef17..7ac225a 100644
--- a/Makefile
+++ b/Makefile
@@ -62,9 +62,9 @@ RELEASE_VERSION := $(shell cat VERSION)
CC ?= gcc
CFLAGS ?= -O3 -g
-CFLAGS += -W -Wall -Wmissing-declarations -Wwrite-strings
-CFLAGS += $(shell libgcrypt-config --cflags) $(CRYPTO_CFLAGS)
-CPPFLAGS += -DVERSION=\"$(VERSION)\"
+override CFLAGS += -W -Wall -Wmissing-declarations -Wwrite-strings
+override CFLAGS += $(shell libgcrypt-config --cflags) $(CRYPTO_CFLAGS)
+override CPPFLAGS += -DVERSION=\"$(VERSION)\"
LDFLAGS ?= -g
LIBS += $(shell libgcrypt-config --libs) $(CRYPTO_LDADD)
@@ -73,7 +73,7 @@ LIBS += -lnsl -lresolv -lsocket
endif
ifneq (,$(findstring Apple,$(shell $(CC) --version)))
# enabled in FSF GCC, disabled by default in Apple GCC
-CFLAGS += -fstrict-aliasing -freorder-blocks -fsched-interblock
+override CFLAGS += -fstrict-aliasing -freorder-blocks -fsched-interblock
endif
all : $(BINS) vpnc.8
--
2.6.4
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