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

[Bamvor Zhang Jian]

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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