On 2010-08-17 15:15, Alexander Kabaev wrote:
> Dimitry Andric <dimi...@andric.com> wrote:
...
>> 1) The "isysroot" method: build a regular version of clang, and make
>> sure WMAKEENV contains something like:
>>
>> CC="${CC} -isysroot ${WORLDTMP} -B${WORLDTMP}/usr/lib/ \
>> -L${WORLDTMP}/usr/lib/"
>>
>> 2) The "tools-prefix" method: build a special version of clang, that
>> has its default search paths for headers, startup objects and
>> libraries modified, to look for everything under ${WORLDTMP}.
...
> Does method 1) work fine with 'make buildenv'? I doubt that. I would
> strongly suggest we should not lose this feature. I do not like the
> idea of having to depend on -isystem in CFLAGS in such an environment.
I have not tested make buildenv with this method, but since ${CC} is
modified, not ${CFLAGS}, there is a reasonable chance that it might
work. :)
Note a similar method is already being using for the build32 stage on
amd64, where ${CC} has a bunch of flags (including -isystem, -L and -B)
appended.
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