fixed: also run unit tests through valgrind if requested

cmake/Scripts/IFEMTesting.cmake

@@ -79,6 +79,9 @@ macro(add_check_target)
       list(GET UNIT_TEST${test_number} 0 name)
       list(GET UNIT_TEST${test_number} 1 dir)
       list(GET UNIT_TEST${test_number} 2 -1 cmd)
+      if(IFEM_TEST_MEMCHECK)
+        set(cmd valgrind ${cmd})
+      endif()
       add_test(NAME ${name} WORKING_DIRECTORY ${dir} COMMAND ${cmd})
     endforeach()
   endif()