Re: [PATCH 2/7] selftests: add CFLAGS_EXTRA

From: Bamvor Zhang Jian
Date: Tue Aug 25 2015 - 08:52:25 EST

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 And kdbus
>> could compile pass with sys/capability and
> 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

$(CC) $(CFLAGS) mq_open_tests.c -o mq_open_tests -lrt


> cheers
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