Re: cross compile mips on x86_64: pcre?

On Thu, Sep 11, 2014 at 10:38 PM, Paul Boddie <[email protected]> wrote:
> On Friday 5. September 2014 23.33.34 Paul Boddie wrote:
>>
>> I'm guessing that the wrong objcopy is invoked here, but I have no idea how
>> this would be fixed. Earlier in the build output the following occurs:
>>
>> dh_strip -plibgcc-4.8-dev
>> strip: Unable to recognise the format of the input file `debian/libgcc-4.8-
>> dev/usr/lib/gcc/mipsel-linux-gnu/4.8/libgcc.a(_m16subsf3.o)'
>
> So, this seems to be a problem with dh_strip. Looking at the dh_strip code
> indicates that a function called cross_command is provided in the following
> file:
>
> /usr/share/perl5/Debian/Debhelper/Dh_Lib.pm
>
> This appears to compare DEB_BUILD_GNU_TYPE and DEB_HOST_GNU_TYPE, and only if
> they are different does it generate a command prefixed with the latter. So, to
> coerce it to use the appropriate objcopy command on foreign libraries, the
> following appears to be necessary (for my system):
>
> DEB_BUILD_GNU_TYPE=i586-linux-gnu \
> DEB_HOST_GNU_TYPE=mipsel-linux-gnu \
> dh_strip ...
>

Good idea. I will fix it.
See: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=671032

> The most pertinent reference to this that I could find was the following
> comment on a bug in Launchpad:
>
> https://code.launchpad.net/~hrw/ubuntu/precise/gcc-4.6/cross-
> fixes/+merge/82269/comments/177796
>
> Since dh_strip seems to be used a lot in the debian/rules.d files for the gcc
> packages, I do wonder what the fix for this is meant to be.
>
> Paul
>
> P.S. All of this still being in the context of the following:
>
> https://wiki.debian.org/MultiarchCrossToolchainBuild#Local_building_of_multiarch_cross-
> toolchains
>
>
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-- 
YunQiang Su