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Message-ID: <55DC6470.8030106@linaro.org>
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
>
>
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