[Buildroot] [PATCH] uboot-tools: pass empty CFLAGS on invocation of libfdt/setup.py

[Arnout Vandecappelle <arnout@mind.be>]

On 23-03-17 00:12, Max Filippov wrote:
> Hi Thomas,
> 
> On Wed, Mar 22, 2017 at 2:01 PM, Thomas Petazzoni
> <thomas.petazzoni@free-electrons.com> wrote:
>> On Mon, 20 Mar 2017 16:30:53 -0700, Max Filippov wrote:
>>
>>> I can't reproduce it.
>>> The python script makes the compilation super quiet, can we apply something
>>> like the attached patch to see what happens?
>>
>> Build log is below. The issue is that the library being produced is
>> named _libfdt.cpython-35m-x86_64-linux-gnu.so, but U-Boot build system
>> assumes it's named _libfdt.so.
>>
>> However, let's take a step back: why the heck do we have this Python
>> related stuff being built?
> 
> we probably don't.
> 
>> uboot-tools is only meant to install the
>> basic U-Boot tools like fw_printenv and fw_setenv to the target. Why do
>> we bother about this Python libfdt thing? We're not even installing
>> this stuff to the target:
>>
>> define UBOOT_TOOLS_INSTALL_TARGET_CMDS
>>         $(UBOOT_TOOLS_INSTALL_MKIMAGE)
>>         $(UBOOT_TOOLS_INSTALL_MKENVIMAGE)
>>         $(UBOOT_TOOLS_INSTALL_FWPRINTENV)
>>         $(UBOOT_TOOLS_INSTALL_DUMPIMAGE)
>> endef
>>
>> Looking at tools/Makefile, it indeed automatically builds this Python
>> stuff is swig is available, with no way to disable this stuff. Should
>> we patch this out? 

 I would very much prefer an upstreamable patch that makes it possible to
disable this.

 Regards,
 Arnout


>> Alternatively, changing:
>>
>>         mv _libfdt.so $@
>>
>> to:
>>
>>         mv _libfdt.*so $@
>>
>> does the trick.
> 
> That looks like a nice small fix.
> 

-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
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