| # Extend the path in `base_path` with the path in `current_segment`, returning |
| # the result in `joined_path`. If `current_segment` is an absolute path then |
| # just return it, in effect overriding `base_path`, and issue a warning. |
| # |
| # Note that the code returns a relative path (avoiding introducing leading |
| # slashes) if `base_path` is empty. |
| function(extend_path joined_path base_path current_segment) |
| if("${current_segment}" STREQUAL "") |
| set(temp_path "${base_path}") |
| elseif("${base_path}" STREQUAL "") |
| set(temp_path "${current_segment}") |
| elseif(IS_ABSOLUTE "${current_segment}") |
| message(WARNING "Since \"${current_segment}\" is absolute, it overrides base path: \"${base_path}\".") |
| set(temp_path "${current_segment}") |
| else() |
| set(temp_path "${base_path}/${current_segment}") |
| endif() |
| set(${joined_path} "${temp_path}" PARENT_SCOPE) |
| endfunction() |
