* automake.in (initialize_global_constants): If unreadable by

	* automake.in (initialize_global_constants): If unreadable by
	owner, make it readable by owner regardless of number of links.
	Fixes more of install2.test.

	* missing: Try to see if gnutar or gtar exist before invoking
	them.

	* m4/missing.m4 (AM_MISSING_INSTALL_SH): Remove ${SHELL} from
	install_sh value.  Look for install-sh and install.sh in a
	somewhat more sensible way.  Fixes test install2.test.  Partially
	from Jim Meyering.