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Date: Tue, 25 Aug 2015 20:49:52 +0800 From: Bamvor Zhang Jian <bamvor.zhangjian@...aro.org> To: Michael Ellerman <michael@...erman.id.au> Cc: linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>, khilman@...aro.org, tyler.baker@...aro.org, shuahkh@....samsung.com Subject: Re: [PATCH 2/7] selftests: add CFLAGS_EXTRA On 08/24/2015 11:48 AM, Michael Ellerman wrote: > On Fri, 2015-08-14 at 21:43 +0800, Bamvor Jian Zhang wrote: >> One may pass the "-I /path/to/headers -L /path/to/lib" through >> CFLAGS_EXTRA for cross compiling. mqueue could compile pass >> in this way when we provide the popt.h and libpopt.so. And kdbus >> could compile pass with sys/capability and libcap.so > > There should be no need to define a new variable. > > You should just update the relevant Makefiles to use CFLAGS += rather than > CFLAGS =. And then you can just specifiy CFLAGS on the command line. yeap, it works for me. There is only one line need to be changed: diff --git a/tools/testing/selftests/mqueue/Makefile b/tools/testing/selftests/mqueue/Makefile index 0e3b41e..ca8327f 100644 --- a/tools/testing/selftests/mqueue/Makefile +++ b/tools/testing/selftests/mqueue/Makefile @@ -1,4 +1,4 @@ -CFLAGS = -O2 +CFLAGS += -O2 all: $(CC) $(CFLAGS) mq_open_tests.c -o mq_open_tests -lrt regards bamvor > > cheers > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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