Open MPI logo

Hardware Locality Users' Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Hardware Locality Users mailing list

Subject: Re: [hwloc-users] build issue with CFLAGS='-mcmodel=medium'
From: Christopher Samuel (samuel_at_[hidden])
Date: 2012-01-30 18:38:07


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 31/01/12 05:00, Samuel Thibault wrote:

> Could you check in the config.log that the test for buildability of
> cpuid.h includes your -mcmodel option and (would be surprising) doesn't
> fail?

I can replicate that failure, and I can confirm that cpuid seems to
pass the configure test (assuming I'm looking in the right place):

configure:11701: checking for cpuid
configure:11727: gcc -o conftest -mcmodel=medium -I/tmp/hwloc-1.4/include -mcmodel=medium conftest.c >&5
configure:11727: $? = 0
configure:11728: result: yes

Diffing config.log between a plain ./configure and one with CFLAGS
and LDFLAGS set doesn't appear to show any real differences.

This is on 64-bit Ubuntu 11.04.

samuel_at_eris:/tmp/hwloc-1.4$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.5.2-8ubuntu4' --with-bugurl=file:///usr/share/doc/gcc-4.5/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.5 --enable-shared --enable-multiarch --with-multiarch-defaults=x86_64-linux-gnu --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib/x86_64-linux-gnu --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.5 --libdir=/usr/lib/x86_64-linux-gnu --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin --enable-gold --enable-ld=default --with-plugin-ld=ld.gold --enable-objc-gc --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4)

cheers,
Chris
- --
    Christopher Samuel - Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: samuel_at_[hidden] Phone: +61 (0)3 903 55545
         http://www.vlsci.unimelb.edu.au/

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAk8nKd8ACgkQO2KABBYQAh/K6ACcDv1EHPyZ1dRPmP1LhM7oexRx
tzQAnRAeksg+BS0BHHRV6Rmw1XjJE19W
=bo+c
-----END PGP SIGNATURE-----