port upgrade outdated fails

[Chris Jones]

On 27/08/2019 12:36 am, Mark Brethen wrote:
> --->  Computing dependencies for arpack
> --->  Fetching distfiles for arpack
> Warning: Your DNS servers incorrectly claim to know the address of 
> nonexistent hosts. This may cause checksum mismatches for some ports. 
> See this page for more information: 
> <https://trac.macports.org/wiki/MisbehavingServers>
> --->  Attempting to fetch arpack-ng-3.7.0.tar.gz from 
> https://distfiles.macports.org/arpack
> --->  Verifying checksums for arpack
> --->  Extracting arpack
> --->  Applying patches to arpack
> --->  Configuring arpack
> Error: mpich-default has a different Fortran variant (gcc8) than the one 
> selected, gcc9 (via +gfortran).
> Error: Failed to configure arpack: Install mpich-default +gcc9
> Error: See 
> /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_math_arpack/arpack/main.log 
> for details.
> E
> 
> The mpich upgrade broke arpack. How do I recover from this?

Do what it says. Install arpack and mpich-default with the same fortran 
variants.

Most probably you have mpich-default installed with the older gcc8 
variant active, so just uninstall it and then reinstall with the new 
default, which is gcc9.

Chris