[mpich-discuss] Mpich won't compile with gcc-5

[Balaji, Pavan]

Are you using gfortran-5 as well?  That seems to be giving an issue.  If you don't need fortran, you can disable it by passing --disable-fortran to configure.

  -- Pavan

> On Feb 18, 2015, at 4:14 AM, Jan Wittke <wittke at geo.uni-koeln.de> wrote:
> 
> Hi,
> 
> after installing gcc-5-20150208 from source with
> 
> /opt/gcc-5-20150208/configure --program-suffix=-5 --prefix=/usr/local --enable-languages=c,c++,fortran --disable-multilib
> 
> I am not able to run the mpich ./configure script properly.
> Doing:
> 
> CC=/usr/local/bin/gcc-5 FC=/usr/local/bin/gfortran-5 ./configure --enable-threads
> 
> in the  mpich-3.2a2 directory I got the error:
> 
> configure: error: Unable to configure with Fortran support because configure could not determine the size of a Fortran INTEGER. Consider setting CROSS_F77_SIZEOF_INTEGER to the length in bytes of a Fortran INTEGER
> 
> Is there any fix around ?
> 
> Thank you,
> Jan
> 
> 
> 
> -- 
> Jan Wittke
> Geophysicist (M.Sc.)
> Institute of Geophysics and Meteorology
> University of Cologne
> Email: wittke at geo.uni-koeln.de
> Homepage: www.geomet.uni-koeln.de
> Tel.: +49 (0)221 470 6132 / Room 310
> 
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--
Pavan Balaji  ✉️
http://www.mcs.anl.gov/~balaji

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