[petsc-dev] CFLAGS / LDFLAGS and cxx error

[Barry Smith]

  You are passing the CFLAGS="-arch i386"  to C but not g++ hence g++ is using the 64 bit. You need to set CXXFLAGS also to use 32 bit.

   Barry

On Jul 28, 2010, at 12:39 PM, Wesley Smith wrote:

>> Ah yes, Apple does like to change things superficially. ;-)
> 
> indeed :)
> 
>> Back to your problem, if you use --with-clanguage=cxx and --with-cc=gcc
>> (instead of letting the system find it on it's own), then you should
>> provide --with-cxx=g++ (or whatever).  If this doesn't work, send
>> configure.log to petsc-maint at mcs.anl.gov.
>> 
> 
> that's exactly what I'm doing:
> 
> 
> ./configure --with-cc=gcc --with-clanguage=cxx --download-boost
> --with-fc=0 --download-parmetis --with-shared --with-dynamic
> --download-mpich --with-sieve --CFLAGS="-arch i386" --LDFLAGS="-arch
> i386" --with-cxx=g++
> ===============================================================================
>             Configuring PETSc to compile on your system
> ===============================================================================
> TESTING: checkCxxCompiler from
> config.setCompilers(config/BuildSystem/config/setCompilers.py:638)
> 
> *******************************************************************************
>         UNABLE to CONFIGURE with GIVEN OPTIONS    (see configure.log
> for details):
> -------------------------------------------------------------------------------
> C++ compiler you provided with -with-cxx=g++ does not work
> *******************************************************************************
> 
> I'll send in the log then.
> 
> wes