Looks like possibly a mixture of C compilers or different flags being used in different places in configure and make. Would need configure.log and make.log sent to petsc-maint

On Oct 22, 2021, at 9:32 AM, Mark Adams <[email protected]> wrote:

And I am using '--with-cc=gcc-11', '--with-cxx=g++-11', but I am getting, using what Jed suggests:

/Users/markadams/Codes/petsc2/include/petscsys.h:2873:29: error: '_Pragma' undeclared (first use in this function) 2873 | #define PetscPragmaOMP(arg) _Pragma("omp " PetscStringize(arg))

On Fri, Oct 22, 2021 at 9:15 AM Mark Adams <[email protected] <mailto:[email protected]>> wrote: