| function(headers_to_include_dirs header_file_list include_directory_list) |
| #Extract the directories for each header file |
| foreach(header ${${header_file_list}}) |
| get_filename_component(incl_dir ${header} DIRECTORY) |
| list(APPEND dir_list ${incl_dir}) |
| endforeach() |
| |
| #Remove any duplicates |
| list(LENGTH "${dir_list}" length) |
| if(${length} GREATER 1) #Avoid error with zero-length lists |
| list(REMOVE_DUPLICATES ${dir_list}) |
| endif() |
| |
| #Set the second argument in the caller's scope |
| set(${include_directory_list} ${dir_list} PARENT_SCOPE) |
| endfunction(headers_to_include_dirs) |
