>>>>>>
configure:6247: /lib/cpp conftest.c
In file included from conftest.c:11:0:
/share/apps/intel-2020.2/compilers_and_libraries/linux/include/limits.h:37:54:
error: missing binary operator before token "("
defined(__has_include_next) && __has_include_next(<limits.h>)
^
configure:6247: $? = 1
<<<<<
I've seen these bad interactions with intel compilers and gcc. i.e - when intel
compiler modifies env for itself - it breaks gcc.
[and this newer version if intel compiler requires a newer gcc in PATH anyway
:( - otherwise some c++ features don't work..]
Don't know how to deal with such issues [created by intel compilers..]
Satish
On Thu, 3 Dec 2020, Blaise A Bourdin wrote:
>
>
> > On Dec 3, 2020, at 10:15 AM, Satish Balay <ba...@mcs.anl.gov> wrote:
> >
> > On Thu, 3 Dec 2020, Blaise A Bourdin wrote:
> >
> >> Hi,
> >>
> >> Building sowing fails when I try to compile petsc on a RHEL7 system with
> >> the default gcc (4.8.5) and intel compilers.
> >> Looking at the log file and sowing.py, it looks like sowing configure step
> >> does not inherit from the compilers detected by BuildSystem at an earlier
> >> stage, so that instead of using the intel compilers, it pulls my ancient
> >> gcc.
> >>
> >> Instead of having to clumsily add --download-sowing-cc=mpicc
> >> --download-sowing-cxx=mpicxx to the configure options, would it make sense
> >> to populate the CC, CXX, CPP, CXXPP configure options (sowing.py:40-47)
> >> with the PETSc compilers? I can do it if that is OK.
> >
> > The reason for the current design is - sowing [and similar build tools] -
> > are for the build machine - and the petsc library [and CC etc] are for the
> > compute machine [in cases where these are different].
> >
> > Also sowing didn't work with most compilers - and default gcc [from PATH]
> > was the most sane default compiler for it.
> >
> > And defaults don't always work [if defaults are changed - if might fix this
> > senario - but break in others that are curently working...] - hence we have
> > these extra options for use - in these cases.
>
> OK, that does make a lot of sense.
>
> >
> > I'm surprised sowing doesn't work with gcc-4.8.5. I'll have to recheck.
> I am attaching my sowing config.log and configure.log
>
>
>
> Regards,
> Blaise
>
> --
> A.K. & Shirley Barton Professor of Mathematics
> Adjunct Professor of Mechanical Engineering
> Adjunct of the Center for Computation & Technology
> Louisiana State University, Lockett Hall Room 344, Baton Rouge, LA 70803, USA
> Tel. +1 (225) 578 1612, Fax +1 (225) 578 4276 Web
> http://www.math.lsu.edu/~bourdin
>
>
