On 30/07/2014 14:31, Christopher Gregory wrote:
> On Wed, 2014-07-30 at 12:49 +0100, Anthony Wright wrote:
>> I've successfully built a 64 bit LFS 7.5-systemd installation. I'm
>> trying to build a series of packages on top of that, and one of the
>> packages needs a 32 bit version of glibc in addition to the 64 bit
>> version of glibc (it fails trying to include /usr/include/gnu/stubs-32.h).
>>
>> Using a distro such as Ubuntu I can apt-get a 32 bit glibc, so I know
>> it's possible to have the 64 and 32 bits version of glibc co-existing,
>> but I can't work out how to build a 32 bit version of glibc on a clean
>> 64 bit version of LFS.
>>
>> I've tried following the glibc instructions in chapter 6 and then
>> modifying the configure to:
>>
>> ../glibc-2.19/configure \
>> --prefix=/usr \
>> --disable-profile \
>> --enable-kernel=2.6.32 \
>> --enable-obsolete-rpc \
>> --host=i686-linux-gnu \
>> CC="gcc -m32" \
>> CXX="g++ -m32"
>>
>> Unfortunately it runs for quite a while and then fails with the
>> following output:
>>
>> a - elf/dl-sym.os
>> a - elf/dl-tsd.os
>> a - elf/unwind-dw2-fde-glibc.os
>> a - elf/framestate.os
>> a - elf/unwind-pe.os
>> gcc -m32 -nostdlib -nostartfiles -r -o
>> /xx/glibc-build/elf/librtld.map.o '-Wl,-('
>> /xx/glibc-build/elf/dl-allobjs.os /xx/glibc-build/libc_pic.a -lgcc
>> '-Wl,-)' -Wl,-Map,/xx/glibc-build/elf/librtld.mapT
>> /usr/bin/ld: skipping incompatible
>> /usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.2/libgcc.a when searching for
>> -lgcc
>> /usr/bin/ld: cannot find -lgcc
>> collect2: error: ld returned 1 exit status
>> Makefile:286: recipe for target '/xx/glibc-build/elf/librtld.map' failed
>> make[2]: *** [/xx/glibc-build/elf/librtld.map] Error 1
>> make[2]: Leaving directory '/xx/glibc-2.19/elf'
>> Makefile:213: recipe for target 'elf/subdir_lib' failed
>> make[1]: *** [elf/subdir_lib] Error 2
>> make[1]: Leaving directory '/xx/glibc-2.19'
>> Makefile:9: recipe for target 'all' failed
>> make: *** [all] Error 2
>>
>> I also wondered about editting the LFS book to build a 32 bit glibc just
>> after the 64 bit glibc has been built so that hopefully the tools which
>> seem to be missing above would be available.
>>
>> Any suggestions would be appreciate.
>>
>> thanks,
>>
>> Anthony.
> Hello Anthony,
>
> A quick search on google produced the following:
>
> ../../src/glibc-2.6/configure --prefix=$HOME/glibc32-2.6 \
> --host=i686-linux-gnu \
> --build=i686-linux-gnu \
> CC="gcc -m32" CXX="g++ -m32" \
> CFLAGS="-O2 -march=i686" \
> CXXFLAGS="-O2 -march=i686"
>
> You could give this a go and see how you get on.
>
> The poster claims that it was successful. I don't have a 64-bit system
> so am unable to verify it.
>
> Regards,
>
> Christopher.
>
Hi Christopher,
I found that one too, but it didn't work either. The main difference
between this and my attempt is the CFLAGS & the CXXFLAGS. When I looked
at CLFS (which seems to be doing what I wanted), it explicitly said
don't play with either of these two variables.
thanks,
Anthony.
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