https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110644
--- Comment #14 from Kyle Shores <kyle.shores44 at gmail dot com> --- I have not made a smaller example, but we have since removed json-fortran as a dependency for tuv-x. So it should be easier to view the failure in tuv-x. I have not made the time to try to reduce the code to an example, but maybe this could help. Following this instructions should show an error git clone https://github.com/NCAR/tuv-x cd tuv-x mkdir build && cd build FC=g++-13 cmake .. make