[petsc-users] configuring on OSX

[Smith, Barry F.]

   Ahh,  the --download-c2html is not needed; it is used only when building all of the PETSc documentation including html versions of the source.

   For some reason it's configure is not doing a good job of selecting cpp. Over the years it has been amazingly portable, I guess Apple just went a bit too far.

   Anyways just run without that option,

    Barry



> On Sep 3, 2019, at 11:24 PM, Brian Van Straalen via petsc-users <petsc-users at mcs.anl.gov> wrote:
> 
> I can attach the config log.  mpi breaks for yet other reasons so I was trying to simplify things sufficiently.   
> 
> if I put mpi back in and take the compiler choices out, I still end up with failure on CPP.   It seems determined to look for "/lib/cpp" which is only correct for linux.
> 
> 
> 
> 
> On Tue, Sep 3, 2019 at 9:11 PM Balay, Satish <balay at mcs.anl.gov> wrote:
> On Wed, 4 Sep 2019, Balay, Satish via petsc-users wrote:
> 
> > On Tue, 3 Sep 2019, Brian Van Straalen via petsc-users wrote:
> > 
> > > pulling from git PETSC and on master branch.
> > > 
> > > ./configure CPP=/usr/bin/cpp
> > > ===============================================================================
> > >              Configuring PETSc to compile on your system
> > > 
> > > ===============================================================================
> > > TESTING: checkCPreprocessor from
> > > config.setCompilers(config/BuildSystem/config/setCompilers.py:592)
> > > 
> > > *******************************************************************************
> > >          UNABLE to CONFIGURE with GIVEN OPTIONS    (see configure.log for
> > > details):
> > > -------------------------------------------------------------------------------
> > > Cannot find a C preprocessor
> > > *******************************************************************************
> > 
> > Its best to send configure.log
> > 
> > > 
> > > 
> > > 
> > > Brian
> > > 
> > > my configure script
> > > 
> > > configure_options = [
> > > #   '--with-mpi-dir=/usr/local/opt/open-mpi',
> 
> Hm - this is commented out anyway. So there is no mpi specified for this build (its a mandatory dependency)? 
> 
> > >    '--with-cc=/usr/bin/clang',
> > >    '--with-cpp=/usr/bin/cpp',
> > >    '--with-cxx=/usr/bin/clang++',
> > 
> > The above 3 options are redundant - when --with-mpi-dir is provided. PETSc configure will pick up mpicc etc from the specified location.
> > 
> > >    '--with-fc=0',
> > 
> > Hm - this conflicts with --download-mumps etc that require fortran
> > 
> > Satish
> > 
> > >     'COPTFLAGS=-g -framework Accelerate',
> > >     'CXXOPTFLAGS=-g -framework Accelerate',
> > >     'FOPTFLAGS=-g',
> > > #  '--with-memalign=64',
> > >   '--download-hypre=1',
> > >   '--download-metis=1',
> > >   '--download-parmetis=1',
> > >   '--download-c2html=1',
> > >   '--download-ctetgen',
> > > #  '--download-viennacl',
> > > #  '--download-ml=1',
> > >   '--download-p4est=1',
> > >   '--download-superlu_dist',
> > >   '--download-superlu',
> > >   '--with-cxx-dialect=C++11',
> > >   '--download-mumps=1',
> > >   '--download-scalapack=1',
> > > #  '--download-exodus=1',
> > > #  '--download-ctetgen=1',
> > >   '--download-triangle=1',
> > > #  '--download-pragmatic=1',
> > > #  '--download-eigen=1',
> > >   '--download-zlib',
> > >   '--with-x=1',
> > >   '--with-sowing=0',
> > >   '--with-debugging=1',
> > >   '--with-precision=double',
> > >   'PETSC_ARCH=arch-macosx-gnu-g',
> > >   '--download-chaco'
> > >   ]
> > > 
> > > if __name__ == '__main__':
> > >   import sys,os
> > >   sys.path.insert(0,os.path.abspath('config'))
> > >   import configure
> > >   configure.petsc_configure(configure_options)
> > > 
> > > 
> > > 
> > 
> 
> 
> 
> -- 
> Brian Van Straalen         Lawrence Berkeley Lab
> BVStraalen at lbl.gov        Computational Research
> (510) 486-4976            Division (crd.lbl.gov)
> <configure.log>