Merge pull request #130 from aminya/colcon [skip ci]

Author: aminya

src/Common.cmake

@@ -50,7 +50,9 @@ macro(common_project_options)
      ""
      OR "$ENV{COLCON}" STREQUAL "1")
     # these are used in order:
-    set(CMAKE_MAP_IMPORTED_CONFIG_RELWITHDEBINFO "RelWithDebInfo;Release;None;NoConfig")
+    set(CMAKE_MAP_IMPORTED_CONFIG_RELWITHDEBINFO
+        "RelWithDebInfo;Release;None;NoConfig"
+        CACHE STRING "Fallbacks for the RelWithDebInfo build type")
   endif()
 
   # Generate compile_commands.json to make it easier to work with clang based tools