Plan 9 from Bell Labs’s /usr/web/sources/contrib/fgb/root/sys/src/ape/X11/cmd/X/hw/xfree86/dummylib/README
libdummy (dummylib) contains basic utility functions required by libxf86_os.a. There is one symbol per source/object so that each can be overriden individually by whatever uses this library. $XFree86$