CMake: Do not forget to clear some cached variables

git-svn-id: https://svn.dealii.org/trunk@33015 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/cmake/modules/FindMPI.cmake b/deal.II/cmake/modules/FindMPI.cmake
index 111c75a58e869ba6af75e249a610afddf399269b..cf1671594c99073b05e2450e2c1b5cc066463dd5 100644 (file)
--- a/deal.II/cmake/modules/FindMPI.cmake
+++ b/deal.II/cmake/modules/FindMPI.cmake
@@ -152,12 +152,14 @@ DEAL_II_PACKAGE_HANDLE(MPI
   CXX_FLAGS OPTIONAL MPI_CXX_COMPILE_FLAGS
   LINKER_FLAGS OPTIONAL MPI_CXX_LINK_FLAGS
   CLEAR
-    MPI_MPI_H
-    MPI_HEADER_PATH
-    MPI_LIB
-    MPIEXEC
-    MPI_CXX_COMPILER
     MPI_C_COMPILER
+    MPI_CXX_COMPILER
+    MPIEXEC
+    MPI_EXTRA_LIBRARY
     MPI_Fortran_COMPILER
+    MPI_HEADER_PATH
+    MPI_LIB
+    MPI_LIBRARY
+    MPI_MPI_H
   )