Source: petsc Version: 3.20.6+dfsg1-1 Followup-For: Bug #1075380 petsc still fails this way with scotch 7.0.5 (which has fixed scotch's own gcc-14 problem).
The issue is that petsc is configured to use default scotch (integer not specified, meaning int). But the petsc64 build gets PetscInt defined as long int. gcc-14 no longer treats pointers to int and to long as compatible. Incidently the (previously tolerated) incompatibility could possible explain various random 64-bit integer failures (e.g. bug#968118 in dolfin64) Evidently we need to start configuring 64-bit petsc explicitly against 64-bit scotch (given that petsc is using long, we'd likely want scotch long rather than int64).
