[petsc-users] compiler related error (configuring Petsc)

[Pierre Jolivet]

Right, so configure did the proper job and told you that your compiler does not (fully) work with C++11, there is no point in trying to add extra flags to bypass this limitation.
As Satish suggested: either use a newer g++ or configure --with-cxx=0

Thanks,
Pierre

> On 2 Aug 2023, at 6:42 AM, maitri ksh <maitri.ksh at gmail.com> wrote:
> 
> sure, attached.
> 
> On Tue, Aug 1, 2023 at 10:36 PM Jacob Faibussowitsch <jacob.fai at gmail.com <mailto:jacob.fai at gmail.com>> wrote:
>> >> Initially I got an error related
>> >> to 'C++11' flag,
>> 
>> Can you send the configure.log for this as well
>> 
>> Best regards,
>> 
>> Jacob Faibussowitsch
>> (Jacob Fai - booss - oh - vitch)
>> 
>> > On Aug 1, 2023, at 14:42, Satish Balay via petsc-users <petsc-users at mcs.anl.gov <mailto:petsc-users at mcs.anl.gov>> wrote:
>> > 
>> >> gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
>> > 
>> > Is it possible for you to use a newer version GNU compilers?
>> > 
>> > If not - your alternative is to build PETSc with --with-cxx=0 option
>> > 
>> > But then - you can't use --download-superlu_dist or any pkgs that need
>> > c++ [you could try building them separately though]
>> > 
>> > Satish
>> > 
>> > 
>> > On Tue, 1 Aug 2023, maitri ksh wrote:
>> > 
>> >> I am trying to compile petsc on a cluster ( x86_64-redhat-linux, '
>> >> *configure.log'*  is attached herewith) . Initially I got an error related
>> >> to 'C++11' flag, to troubleshoot this issue, I used 'CPPFLAGS' and
>> >> 'CXXFLAGS' and could surpass the non-compliant error related to c++ compiler
>> >> but now it gives me another error 'cannot find a C preprocessor'. How to
>> >> fix this?
>> >> 
>> > 
>> 
> <configure.log>

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