crosstool build breaks at CLoog/ppl on Fedora 13

[Yann E. MORIN]

Darcy, All,

On Wednesday 04 August 2010 22:01:22 Darcy Watkins wrote:
> Crosstool 1.7.0 worked fine for me using Fedora 10.  After upgrade to
> Fedora 13, I started seeing errors like the below.  The output below is
> actually after I updated to crosstool 1.7.2.

There has been no change for CLooG/PPL between 1.7.0 and 1.7.2.
Anyway, 1.8.0 is out now, but there's been no changes either.

[--SNIP--]
> Tail end of the build.log file....
> 
> [ALL  ]    if i686-build_redhat-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I/home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/src/cloog-ppl-0.15.9 -I./include/cloog -I./include -I/home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/src/cloog-ppl-0.15.9/include  -I/home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/arm-unknown-linux-uclibc/build/static/include -I/home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/arm-unknown-linux-uclibc/build/static/include  -Wall -fomit-frame-pointer -pipe -MT cloog.o -MD -MP -MF ".deps/cloog.Tpo" -c -o cloog.o `test -f 'source/cloog.c' || echo '/home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/src/cloog-ppl-0.15.9/'`source/cloog.c; 	then mv -f ".deps/cloog.Tpo" ".deps/cloog.Po"; else rm -f ".deps/cloog.Tpo"; exit 1; fi
> [ALL  ]    /bin/bash ./libtool --tag=CC --mode=link i686-build_redhat-linux-gnu-gcc -Wall -fomit-frame-pointer -pipe  -L/home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/arm-unknown-linux-uclibc/build/static/lib -L/home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/arm-unknown-linux-uclibc/build/static/lib -lstdc++ -o cloog  cloog.o libcloog.la -lgmp -lppl_c -lppl -lgmpxx 

I think that we do not need the cloog executable, anyway.

> [ALL  ]    libtool: link: i686-build_redhat-linux-gnu-gcc -Wall -fomit-frame-pointer -pipe -o cloog cloog.o  -L/home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/arm-unknown-linux-uclibc/build/static/lib ./.libs/libcloog.a -lstdc++ /home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/arm-unknown-linux-uclibc/build/static/lib/libppl_c.a /home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/arm-unknown-linux-uclibc/build/static/lib/libppl.a /home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/arm-unknown-linux-uclibc/build/static/lib/libgmpxx.a /home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/arm-unknown-linux-uclibc/build/static/lib/libgmp.a
> [ALL  ]    /usr/bin/ld: /home/darcy/workspace/tsf/cogent-arm-oabi-ct/pkgs_build/crosstool-ng-1.7_arm/crosstool-ng-1.7.2/targets/arm-unknown-linux-uclibc/build/static/lib/libppl.a(MIP_Problem.o): undefined reference to symbol 'sqrt@@GLIBC_2.0'
> [ALL  ]    /usr/bin/ld: note: 'sqrt@@GLIBC_2.0' is defined in DSO /lib/libm.so.6 so try adding it to the linker command line

Oh... indeed, sqrt is in libm. Why is it not linked with?

I've attached two patches. Care to test them, please? Start with 'link-libm'
and then 'only-lib', and then both. Thank you!

> [ALL  ]    /lib/libm.so.6: could not read symbols: Invalid operation

*This* is strange... What does this tell you: file /lib/libm.so.6
Mine is:
# file /lib/libm.so.6
/lib/libm.so.6: symbolic link to `libm-2.7.so'
# file /lib/libm-2.7.so
/lib/libm-2.7.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.8, stripped

Regards,
Yann E. MORIN.

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