Merge pull request #13973 from tamiko/fix_trilinos_checks_02

CMake: Use deal.II's global index type in Tpetra compatibility test
dealii · Jun 14, 2022 · a42bb0d · a42bb0d
2 parents 1776d64 + 611f482
commit a42bb0d
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/cmake/configure/configure_20_trilinos.cmake b/cmake/configure/configure_20_trilinos.cmake
@@ -227,14 +227,22 @@ MACRO(FEATURE_TRILINOS_FIND_EXTERNAL var)
       # supply the correct compiler and linker flags:
       ADD_FLAGS(CMAKE_REQUIRED_FLAGS "${DEAL_II_CXX_FLAGS} ${DEAL_II_LINKER_FLAGS}")
 
+      IF(DEAL_II_WITH_64BIT_INDICES)
+        SET(_global_index_type "std::uint64_t")
+      ELSE()
+        SET(_global_index_type "unsigned int")
+      ENDIF()
+
       CHECK_CXX_SOURCE_COMPILES(
         "
+        #include <cstdint>
         #include <Tpetra_Vector.hpp>
         int
         main()
         {
           using LO       = int;
           using GO       = unsigned int;
+          using GO       = ${_global_index_type};
           using map_type = Tpetra::Map<LO, GO>;
           Teuchos::RCP<const map_type>   dummy_map = Teuchos::rcp(new map_type());
           Tpetra::Vector<double, LO, GO> dummy_vector(dummy_map);