[gmx-developers] Possible problems with findFFTW

[Mark Abraham]

There's nothing about our autodetection that specifies which such version
should be found, so I expect CMake is picking up that /usr/lib32 is
specified first in some or other environment path variable. You can
probably hack that with cmake -DCMAKE_LIBRARY_PATH (which gets checked
first), or check out the final para of cmake --help-command find_library if
some global hack might be required.

Mark

On Sun, Dec 2, 2012 at 5:09 PM, Alexey Shvetsov <alexxy at omrb.pnpi.spb.ru>wrote:

> Hi all!
>
> With tag 4.6-beta1 i noticed that on 64bit multilib systems gromacs trying
> to find 32bit versions first and only then 64bit versions thats why it
> failes
>
> -- Enabling SSE4.1 Gromacs acceleration, and it will help compiler
> optimization.
> -- Found PkgConfig: /usr/bin/pkg-config (found version "0.27.1")
> -- checking for module 'fftw3f'
> --   package 'fftw3f' not found
> -- Looking for fftwf_plan_r2r_1d in /usr/lib32/libfftw3f.so
> -- Looking for fftwf_plan_r2r_1d in /usr/lib32/libfftw3f.so - not found
> CMake Error at cmake/FindFFTW.cmake:102 (message):
>   Could not find fftwf_plan_r2r_1d in /usr/lib32/libfftw3f.so, take a look
> at
>   the error message in
>   /var/tmp/portage/sci-**chemistry/gromacs-4.6.9999/**
> work/gromacs-4.6.9999_float/**CMakeFiles/CMakeError.log
>   to find out what went wrong.  If you are using a static lib (.a) make
> sure
>   you have specified all dependencies of fftw3f in FFTWF_LIBRARY by hand
>   (e.g.  -DFFTWF_LIBRARY='/path/to/**libfftw3f.so;/path/to/libm.so'**) !
> Call Stack (most recent call first):
>   CMakeLists.txt:948 (find_package)
>
> I have both versions present on this system
>
> x201 ~ # ls -l  /usr/lib*/libfftw3f.so.3
> lrwxrwxrwx 1 root root 18 May 25  2012 /usr/lib/libfftw3f.so.3 ->
> libfftw3f.so.3.3.2
> lrwxrwxrwx 1 root root 18 Nov  9 11:10 /usr/lib32/libfftw3f.so.3 ->
> libfftw3f.so.3.2.4
> lrwxrwxrwx 1 root root 18 May 25  2012 /usr/lib64/libfftw3f.so.3 ->
> libfftw3f.so.3.3.2
>
> PS cmake version is 2.8.10.2
>
>
> --
> Best Regards,
> Alexey 'Alexxy' Shvetsov
> Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, Gatchina,
> Russia
> Department of Molecular and Radiation Biophysics
> Gentoo Team Ru
> Gentoo Linux Dev
> mailto:alexxyum at gmail.com
> mailto:alexxy at gentoo.org
> mailto:alexxy at omrb.pnpi.spb.ru
> --
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