You need to send us configure.log so that we can see what the failure message is.
Thanks, Matt On Fri, Sep 1, 2023 at 9:56 AM Giselle Sosa Jones <gsosajo...@oakland.edu> wrote: > Hello, > > I am trying to install PETSc on my M1 Mac and I keep encountering the > following error when configuring: > > Unknown Fortran name mangling: Are you sure the C and Fortran compilers > are compatible? > > Perhaps one is 64 bit and one is 32 bit? > > > Any ideas on how to fix this? All my compilers are 64 bit. I am using > gfortran and gcc (installed with brew). > > Thank you in advance. > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>