[petsc-users] ex19: Segmentation Violation when run with MUMPS on MacOS (arm64)

[Satish Balay]

On Mon, 1 Apr 2024, Zongze Yang wrote:

> 
> I noticed this in the config.log of OpenMPI:
> ```
> configure:30230: checking to see if mpifort compiler needs additional linker flags
> configure:30247: gfortran -o conftest -fPIC -ffree-line-length-none -ffree-line-length-0 -Wno-lto-type-mismatch -g -O0 -fallow-argument-mismatch  -Wl,-flat_namespace -Wl,-commons,use_dylibs  conftest.f90  >&5
> ld: warning: -commons use_dylibs is no longer supported, using error treatment instead
> configure:30247: $? = 0
> configure:30299: result: -Wl,-commons,use_dylibs
> ```
> So, I find it odd that this flag isn't picked up on your platform, as it only checked the exit value.

I get:

configure:30247: gfortran -o conftest -fPIC -ffree-line-length-none -ffree-line-length-0 -Wno-lto-type-mismatch -g -O0 -fallow-argument-mismatch  -Wl,-flat_namespace -Wl,-commons,use_dylibs  conftest.f90  >&5
ld: unknown options: -commons 
collect2: error: ld returned 1 exit status
configure:30247: $? = 1
configure: failed program was:
| program test
|     integer :: i
| end program
configure:30299: result: none

Note, I have and older xcode-15/CLT version:

petsc at npro ~ % clang --version
Apple clang version 15.0.0 (clang-1500.1.0.2.5)
Target: arm64-apple-darwin23.3.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

Satish