CLooG build error

[Chris Morgan]

2012/1/27 Johannes Stezenbach <js@sig21.net>:
> Hi,
>
> On Fri, Jan 27, 2012 at 01:02:55AM +0100, Benoît Thébaudeau wrote:
>> > From: "Chris Morgan" <chmorgan@gmail.com>
>> > To: "Johannes Stezenbach" <js@sig21.net>
>> > Cc: crossgcc@sourceware.org
>> > Sent: Thursday, January 26, 2012 10:23:39 PM
>> > Subject: Re: CLooG build error
>> >
>> > [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.
>
>
> Thanks
> Johannes


I am running with the compiles check option enabled as per the
recommendation in the documentation.

Chris

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