[petsc-users] configuring on OSX

[Smith, Barry F.]

  Brian,

    Just for kicks could you send arch-macosx-gnu-g/externalpackages/c2html-0.9.4/config.log ?

On my Mac I get 

checking for gcc... gcc
checking for C compiler default output... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for executable suffix... 
checking for object suffix... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for a BSD compatible install... /usr/bin/install -c
checking for flex... flex
checking for yywrap in -lfl... no
checking for yywrap in -ll... yes
checking lex output file root... lex.yy
checking whether yytext is a pointer... yes
checking whether make sets ${MAKE}... yes
checking for yylex in -lfl... no
checking how to run the C preprocessor... gcc -E
checking for ANSI C header files... yes
checking for unistd.h... yes
....

while you get

checking for gcc... gcc
checking for C compiler default output... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for executable suffix... 
checking for object suffix... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for a BSD compatible install... /usr/bin/install -c
checking for flex... flex
checking for yywrap in -lfl... no
checking for yywrap in -ll... no
checking lex output file root... lex.yy
checking whether yytext is a pointer... no
checking whether make sets ${MAKE}... yes
checking for yylex in -lfl... no
checking how to run the C preprocessor... /lib/cpp
...

> On Sep 3, 2019, at 11:35 PM, Smith, Barry F. <bsmith at mcs.anl.gov> wrote:
> 
> 
>   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>
>