Skipped CUDA mesh tests when CUDA < 9

src/UnitTests/Meshes/CMakeLists.txt

@@ -6,7 +6,8 @@ TARGET_LINK_LIBRARIES( BoundaryTagsTest
                            ${GTEST_BOTH_LIBRARIES}
                            tnl )
 
-if( BUILD_CUDA )
+# Mesh cannot be compiled by nvcc < 9 due to bugs in the compiler
+if( ${BUILD_CUDA} AND ${CUDA_VERSION_MAJOR} GREATER_EQUAL 9 )
    CUDA_ADD_EXECUTABLE( MeshTest MeshTest.cu
                         OPTIONS ${CXX_TESTS_FLAGS} )
    TARGET_LINK_LIBRARIES( MeshTest
@@ -58,7 +59,8 @@ ADD_TEST( MeshEntityTest ${EXECUTABLE_OUTPUT_PATH}/MeshEntityTest${CMAKE_EXECUTA
 #   SET( VTK_COMMON_LIBRARIES vtkCommonCore ; vtkIOLegacy )
 #endif( VTK_FOUND )
 
-if( BUILD_CUDA )
+# Mesh cannot be compiled by nvcc < 9 due to bugs in the compiler
+if( ${BUILD_CUDA} AND ${CUDA_VERSION_MAJOR} GREATER_EQUAL 9 )
    CUDA_ADD_EXECUTABLE( MeshReaderTest MeshReaderTest.cu
                         OPTIONS ${CXX_TESTS_FLAGS} )
    TARGET_LINK_LIBRARIES( MeshReaderTest