[gmx-developers] cmake and GMX_BUILD_OWN_FFTW=ON problem

[Christoph Junghans]

2014-02-03 Carsten Kutzner <ckutzne at gwdg.de>:
> Hi,
>
> On a freshly checked out master with
>
> cmake .. -DGMX_BUILD_OWN_FFTW=ON
>
> I get in the make step:
>
> [  0%] Creating directories for 'fftwBuild'
> [  0%] Performing download step (verify and extract) for 'fftwBuild'
> -- verifying file...
>      file='http:/www.fftw.org/fftw-3.3.3.tar.gz'
> -- verifying file... warning: did not verify file - no URL_MD5 checksum
> argument? corrupt file?
> -- extracting...
> src='/home/ckutzne/junoworkspace/git-gromacs-vanilla/bt/src/contrib/fftw/fftwBuild-prefix/src/http:/www.fftw.org/fftw-3.3.3.tar.gz'
> dst='/home/ckutzne/junoworkspace/git-gromacs-vanilla/bt/src/contrib/fftw/fftwBuild-prefix/src/fftwBuild'
> CMake Error at fftwBuild-stamp/extract-fftwBuild.cmake:11 (message):
>   error: file to extract does not exist:
> '/home/ckutzne/junoworkspace/git-gromacs-vanilla/bt/src/contrib/fftw/fftwBuild-prefix/src/http:/www.fftw.org/fftw-3.3.3.tar.gz'
>
>
> So there are two issues here:
> 1.) cmake eats up one slash in the URL (which is correct in the
> CMakeLists.txt file), probably because it thinks it is a path
> 2.) the (wrong) URL identifier string ends up in the source string from
> where to extract the fftw archive.

I wasn't aware that cmake eats slashes:
<https://gerrit.gromacs.org/3070>


>
> The second problem maybe vanishes if the first one is solved.
> I think the problem was introduced with commit
>
> fb1349fd1de3e39d3905c9903a09e7ac2c36aa4b
> cmake: added FFTW_URL to allow easy offline build
>
> Is anyone else also having this problem? Or is it just my cmake version,
> (2.8.8)?
>
> Best,
>   Carsten
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-- 
Christoph Junghans
Web: http://www.compphys.de