[petsc-users] Configuring PETSc on Mac M1

[Satish Balay]

please send the correspond configure.log for this failure - perhaps to petsc-maint [to avoid sending large files to petsc-users mailing list]

BTW: We normally use xcode clang/clang++ with brew gfortran (with system blas/lapack) for MacOS builds

Satish

On Fri, 1 Sep 2023, Giselle Sosa Jones 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.
>