The Unix Makefile defines the following targets, which may be useful to hackers: make regress  - builds the libraries in ../mosmllib and runs the test-suites		in test/ ../mosmllib/test/ ../test/ (by calling make current)                 using the current compiler (the one in this directory).	        Useful for testing prior to boostrapping. make promote  - promote the current binaries of the linker, compiler and toplevel to ../,	        backing up the supplied originals in ../*.orig	         	        Use this prior to boostrapping the compiler, provided the runtime  	                is unchanged. make revert   - restore the linker, compiler and lexer originals (saved by make promote).