A collection of CMake modules, which can mostly be used independently.
The utilities for writing robust Find* modules might be useful until CMake takes static libraries and multiple active configurations seriously. See Improving Find* Modules.
Note for PETSc users: please consider using FindPkgConfig instead of FindPETSc.cmake from this package. PETSc has distributed petsc.pc for use by pkg-config since PETSc 3.4 and some corner cases were fixed in 3.12. Use of the provided petsc.pc is simpler for you distributing your package (only requires CMake default modules) and for us to maintain, especially when distributions modify the installation schema (so there is no PETSC_DIR).