[Clfs-support] [Fwd: Re: problems compiling cloog-ppl]

[Joe Ciccone]

Erik-Jan wrote:
> Stef Bon wrote:
>> Hello,
>>
>> I'm trying to build cloog-ppl-0.15.7, on a system with kernel
>> 2.6.29.4, gcc 4.1.2 and glibc 2.5.1. Actually a lfs 6.3 release.
>>
>> Now the new clfs system is mounted at /mnt/sdb/3, a reiserfs system.
>> I get the following messages when configuring:
>>
>> ./configure --prefix=/tools --build=${CLFS_HOST}
>> --host=${CLFS_TARGET} --with-bits=gmp --with-ppl=/tools
>> --with-gmp=/tools
>>
>> checking for location of PolyLib... installed in standard location
>> checking for PolyhedronTSort in -lpolylibgmp... no Can't find PolyLib.
>> checking for Parma Polyhedral Library (PPL)... installed in /tools
>> checking ppl_c.h usability... ./configure: line 12915: 2796
>> Segmentation fault cat > conftest.$ac_ext <<_ACEOF
>> /* confdefs.h. */
>> _ACEOF
>>
>> ./configure: line 12915: 2797 Segmentation fault cat confdefs.h >>
>> conftest.$ac_ext
>> ./configure: line 12915: 2798 Segmentation fault cat >>
>> conftest.$ac_ext <<_ACEOF
>> /* end confdefs.h. */ $ac_includes_default
>> #include <ppl_c.h>
>> _ACEOF
>>
>> ./configure: line 12915: 2799 Segmentation fault rm -f
>> conftest.$ac_objext
>> ./configure: line 12915: 2803 Segmentation fault grep -v '^ *+'
>> conftest.er1 > conftest.err
>> ./configure: line 12915: 2804 Segmentation fault rm -f conftest.er1
>> ./configure: line 12915: 2805 Segmentation fault cat conftest.err
>> 1>&5 and more ...
>>
>> I've seen a simular discussion at
>>
>> http://lists.cross-lfs.org/htdig.cgi/clfs-support-cross-lfs.org/2009-August/000736.html
>>
>>
>> but there was no sollution there. Is there one??
>>
>> Stef Bon
>
> It is because configure sets LD_LIBRARY_PATH to
> /tools/lib:$LD_LIBRARY_PATH, right after evaluating the --with-ppl
> switch. That means the next thing configure does (a cat command, which
> uses libc) will be linked to the newly build cross-eglibc. Result: lots
> of things go wrong.
>
> You can try this to comment out the setting of LD_LIBRARY_PATH:
> sed -i 's/LD_LIBRARY_PATH=/#&/g' configure
>
> Setting the LD_LIBRARY_PATH isn't needed anyway, all the toolchain magic
> takes care of correct linking.
>
> Bye,
> Erik-Jan
>
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>
This is good to know, I'm suprised no-one spotted this in the past. I'll
try to make the appropriate change this weekend.