[OE-core] [PATCH 1/1] python-native: Fix a compiler finding issue

[Mei, Lei]

>-----Original Message-----
>From: openembedded-core-bounces at lists.openembedded.org
>[mailto:openembedded-core-bounces at lists.openembedded.org] On Behalf Of
>Tom Rini
>Sent: Friday, July 29, 2011 9:44 AM
>To: openembedded-core at lists.openembedded.org
>Subject: Re: [OE-core] [PATCH 1/1] python-native: Fix a compiler finding issue
>
>On 07/28/2011 06:15 PM, Mei, Lei wrote:
>>
>>
>>> -----Original Message-----
>>> From: openembedded-core-bounces at lists.openembedded.org
>>> [mailto:openembedded-core-bounces at lists.openembedded.org] On Behalf
>Of
>>> Tom Rini
>>> Sent: Thursday, July 28, 2011 11:09 PM
>>> To: openembedded-core at lists.openembedded.org
>>> Subject: Re: [OE-core] [PATCH 1/1] python-native: Fix a compiler finding
>issue
>>>
>>> On 07/28/2011 12:20 AM, Mei Lei wrote:
>>>> The CC variable sometimes add option information after compiler name,
>but
>>> python can't get the real compiler name if those information added.
>>>> Fix this issue by dropping the option information when finding compiler
>name.
>>>>
>>>> Signed-off-by: Mei Lei <lei.mei at intel.com>
>>>
>>> I think this is going to cause problems when you must pass flags to gcc
>>> to have it work, eg 'gcc -m64'.
>>
>> This patch fixed your worried issue.
>> The CC variable, sometimes like:  "x86_64-poky-linux-gcc -m64
>--sysroot=/${TMPDIR}/sysroots/qemux86-64", contains flags information.
>> This will lead to wrong compiler name "qemux86-64" rather than
>"x86_64-poky-linux-gcc" when python finding the compiler name, so add this
>patch to find the real gcc name.
>
>No, what I'm saying is I have a compiler that must be invoked as 'gcc
>-m64' (which is what BUILD_CC is).  So, I think after saying that, the
>right answer is to modify python to read the OE-specific BUILD_CC variable.


I think I didn't describe this patch exactly before.

This patch is only for function runtime_library_dir_option, this function is to detect which platform we are running and what compiler we used, then decide what option information should be passed to compiler.

By default, our cross-compiler's name be recognized as "qemux86" rather than " x86_64-poky-linux-gcc" in this function, this is wrong, this will induce a wrong option information passed to x86_64-poky-linux-gcc and block the compile process.

And function runtime_library_dir_option only return the option information, so didn't influence compiler name in global.

By the way, I think BUILD_CC is host compiler name, not for target.

Thanks
Lei
>
>--
>Tom Rini
>Mentor Graphics Corporation
>
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