0.7.3.11:

0.7.3.11:
	Various low-level sparc fixes
	... flush the instruction cache as we are meant to; this hasn't
		hurt, and may get rid of intermittent strange gc lossage.
	... fix the solaris runtime so that MAP_ANON isn't used on solaris
		versions that don't support it, while still used on versions
		that do.
	... minor code cleanup (mostly whitespace changes) too