Re: CLooG build error

[Chris Morgan <chmorgan@gmail.com>]

2012/1/27 Benoît Thébaudeau <benoit.thebaudeau@advansee.com>:
> Hi all,
>
>> > > [DEBUG]    ==> Executing: 'make' '-j2' '-s' 'check'
>> > > [ALL  ]    Making check in .
>> > > [ALL  ]    libtool: link: x86_64-build_unknown-linux-gnu-gcc
>> > > -Wall
>> > > -fomit-frame-pointer -pipe -o cloog cloog.o
>> > > -L/home/cmorgan/ct-ng-install/bin/.build/arm-unknown-eabi/build/static/lib
>> > > ./.libs/libcloog.a -lm
>> > > /home/cmorgan/ct-ng-install/bin/.build/arm-unknown-eabi/build/static/lib/libppl_c.a
>> > > /home/cmorgan/ct-ng-install/bin/.build/arm-unknown-eabi/build/static/lib/libppl.a
>> > > /home/cmorgan/ct-ng-install/bin/.build/arm-unknown-eabi/build/static/lib/libgmpxx.a
>> > > /home/cmorgan/ct-ng-install/bin/.build/arm-unknown-eabi/build/static/lib/libgmp.a
>> > > -lstdc++
>> > > [ALL  ]    /usr/bin/ld:
>> > > /home/cmorgan/ct-ng-install/bin/.build/arm-unknown-eabi/build/static/lib/libppl_c.a(ppl_c_implementation_common.o):
>> > > undefined reference to symbol 'fesetround@@GLIBC_2.2.5'
>> > > [ALL  ]    /usr/bin/ld: note: 'fesetround@@GLIBC_2.2.5' is
>> > > defined in
>> > > DSO
>> > > /usr/lib/gcc/x86_64-linux-gnu/4.6.1/../../../x86_64-linux-gnu/libm.so
>> > > so try adding it to the linker command line
>> > > [ALL  ]
>> > >    /usr/lib/gcc/x86_64-linux-gnu/4.6.1/../../../x86_64-linux-gnu/libm.so:
>> > > could not read symbols: Invalid operation
>> ...
>> > It is possible that you are encountering another consequence of
>> > this issue:
>> > http://sourceware.org/ml/crossgcc/2011-12/msg00051.html
>> > http://sourceware.org/ml/crossgcc/2011-12/msg00052.html
>> >
>> > Yann has not yet reviewed my patch.
>> >
>> > Can you test and report if it solves your issue?
>>
>> I have CT_COMPLIBS_CHECK unset thus I did not run into this issue,
>> and I'm using Debian sid.
>> (CT_COMPLIBS_CHECK help warns it "takes a loooong time" (hours)).
>>
>> However, since cloog is not linked statically, the placement of -lm
>> should not matter.  What is this "libm.so: could not read symbols:
>> Invalid operation"
>> error?  This looked to me like a linker bug, but a short search
>> yielded:
>>
>> https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition
>>
>> Thus I think Benoît's patch is needed, but it would be good
>> to mention the Ubuntu --no-add-needed thing in the changelog.
>
> I have just posted a new version of my patch with these details added as you
> suggested.
>
> Chris, note that my patch only applies to CLooG/PPL 0.15.11 for now. Hence, if
> your config selects another version, you should either select 0.15.11 in your
> config, or adapt the patch for the version you want.
>
> Best regards,
> Benoît


I've applied your patch and am trying a 'ct-ng clean' and 'ct-ng
build' after rebuilding and reinstalling ct-ng. I'll let you know how
it goes in an hour or so when it gets that far again :-)

Does it usually take a while for patches to be integrated?

Chris

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