0.7.4.19:

0.7.4.19:
	Merge TONYMS patch for ignored variables sbcl-devel 2002-06-06
	... update for new def!constant definition
	... delete eval-stack-related stuff in non-x86 trees too
	Fixup in ldso-stubs.S to allow building with gcc again
	... #define LANGUAGE_ASSEMBLY (but it might be better to put this
		in Config files eventually)
	Document build successes on SPARC