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Subject[tip:perf/urgent] tools gpio: Allow overriding CFLAGS
Commit-ID:  4ccc98a48958da9f89beb71c66a4e05468727951
Gitweb: https://git.kernel.org/tip/4ccc98a48958da9f89beb71c66a4e05468727951
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Wed, 12 Dec 2018 11:25:37 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 28 Dec 2018 16:33:08 -0300

tools gpio: Allow overriding CFLAGS

So that the user can specify outside CFLAGS values.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Hartmut Knaack <knaack.h@gmx.de> <knaack.h@gmx.de>
Cc: Herton Krzesinski <herton@redhat.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Link: http://lkml.kernel.org/r/20181212102537.25902-7-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.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))
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