[petsc-users] FindPETSc.cmake expects petscvariables in wrong location

[Joachim Wuttke]

The PETSc FAQ recommends to use the FindPETSc.cmake module
from the repository https://github.com/jedbrown/cmake-modules.

This doesn't work for me. CMake fails with the following message:
   CMake Error at cmake/modules/FindPETSc.cmake:125 (message):
     The pair PETSC_DIR=/usr/lib/src/petsc-3.7.5 PETSC_ARCH=linux-amd64 do not
     specify a valid PETSc installation

Line 115 of FindPETSc.cmake shows that the file petscvariables
is expected at location
   ${PETSC_DIR}/${PETSC_ARCH}/lib/petsc/conf/petscvariables

However, in the current source archive, it is located in
   ${PETSC_DIR}/lib/petsc/conf/petscvariables,
and the default install procedure does not copy it to ${PETSC_ARCH}.


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