1. Suggest reinstalling brew/gfortran - to make sure its compatible with latest xcode you have.
https://urldefense.us/v3/__https://petsc.org/release/install/install/*installing-on-macos__;Iw!!G_uCfscf7eWS!Y7eNVqUTtBNMYgHPI9pgKFBFMZJwLjwjtp4gGnxFTyYpQMN-rfvF4wJiuZywnYU-Rof6DANF1xg1U0VLr7FgG54$ 2. Try: ./configure --download-openmpi=https://urldefense.us/v3/__https://web.cels.anl.gov/projects/petsc/download/externalpackages/openmpi-5.0.3-xcode15.tar.gz__;!!G_uCfscf7eWS!Y7eNVqUTtBNMYgHPI9pgKFBFMZJwLjwjtp4gGnxFTyYpQMN-rfvF4wJiuZywnYU-Rof6DANF1xg1U0VLmz41ilY$ Satish On Tue, 7 May 2024, William Thacher wrote: > Hello, > > I am encountering an issue when configuring/building PETSc on a Mac with > Sonoma 14.4.1. Here are the exact steps I have performed so far: > > 1. Pulled the most recent release of PETSc > 2. Ran "./configure --ignoreLinkOutput=1 LDFLAGS=-Wl,-ld_classic" > > In the configuration process (line 2518 of attached configure.log) it looks > like there is a linker error when testing the fortran compiler. (I get the > same error if I just run ./configure) > > If I run the make command given after running step 2. above, the C/C++ code > builds fine, but I would also like to build the Fortran code. > > Have you all seen this error before on Mac Sonoma/have any ideas for a > workaround? > > I installed open-mpi through Homebrew and upgraded before building PETSc. > > Appreciate the help, > > Will >
