win = import('windows') rc_writer = find_program('./gen-res.py') rc_sources = [] foreach id : [1, 2] rc_sources += custom_target('RC source file @0@'.format(id), input : 'myres.rc.in', output : 'myres_@0@.rc'.format(id), command : [rc_writer, '@INPUT@', '@OUTPUT@', files('sample.ico')], install : false, build_always : true) endforeach rc_sources += files('myres_static.rc') res = win.compile_resources(rc_sources)