linux-kernel - [PATCH 21/29] tools gpio: Allow overriding CFLAGS

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Date:   Thu,  3 Jan 2019 09:46:01 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Clark Williams <williams@...hat.com>, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org, Jiri Olsa <jolsa@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Hartmut Knaack <knaack.h@....de>,
        Herton Krzesinski <herton@...hat.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 21/29] tools gpio: Allow overriding CFLAGS

From: Jiri Olsa <jolsa@...nel.org>

So that the user can specify outside CFLAGS values.

Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Hartmut Knaack <knaack.h@....de> <knaack.h@....de>
Cc: Herton Krzesinski <herton@...hat.com>
Cc: Jonathan Cameron <jic23@...nel.org>
Cc: Lars-Peter Clausen <lars@...afoo.de>
Link: http://lkml.kernel.org/r/20181212102537.25902-7-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/gpio/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/gpio/Makefile b/tools/gpio/Makefile
index 240eda014b37..6ecdd1067826 100644
--- a/tools/gpio/Makefile
+++ b/tools/gpio/Makefile
@@ -12,7 +12,7 @@ endif
 # (this improves performance and avoids hard-to-debug behaviour);
 MAKEFLAGS += -r
 
-CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
+override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
 
 ALL_TARGETS := lsgpio gpio-hammer gpio-event-mon
 ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
-- 
2.19.2