add metis include dir to USER_INCLUDE_DIRS

otherwise tests/metis/metis_01a fails with "fatal error: 'metis.h' file not found"

diff --git a/cmake/modules/FindMETIS.cmake b/cmake/modules/FindMETIS.cmake
index b5de6e7aea061f14bfc959ddfe9b2cbdc69022f7..4b2672bdb4f10e37ffe70a901754d22c06c1eeac 100644 (file)
--- a/cmake/modules/FindMETIS.cmake
+++ b/cmake/modules/FindMETIS.cmake
@@ -103,5 +103,7 @@ DEAL_II_PACKAGE_HANDLE(METIS
     OPTIONAL MPI_C_LIBRARIES
   INCLUDE_DIRS
     REQUIRED METIS_INCLUDE_DIR
+  USER_INCLUDE_DIRS
+    REQUIRED METIS_INCLUDE_DIR 
   CLEAR METIS_LIBRARY PARMETIS_LIBRARY METIS_INCLUDE_DIR
   )