# sigc++/functors # Input: maintainer_mode, python3, handle_built_files, m4_template, m4_include_dir # Input and output: built_h_files, built_h_file_targets # .m4 files to build .h files from. functors_h_m4_files = [ 'functor_trait.h', 'mem_fun.h', 'ptr_fun.h', 'slot.h', ] foreach file : functors_h_m4_files built_h_files += 'functors' / file endforeach if maintainer_mode # Maintainer mode. Generate .h files from .m4 files in macros/ directory. foreach file : functors_h_m4_files built_h_file_targets += custom_target('functors_' + file, input: 'macros' / file + '.m4', output: file, command: [ python3, handle_built_files, 'build_from_m4', m4_include_dir, '@INPUT@', '@OUTPUT@', ], depend_files: m4_template, build_by_default: maintainer_mode, install: false, ) endforeach endif