Fixes for build directories with colons, AIX build problems.

Fixes for build directories with colons, AIX build problems.

2000-11-29  Benjamin Kosnik  <bkoz@redhat.com>

	Fixes for build directories with colons, AIX build problems.
	* src/Makefile.am: Cleanups, add documentation.
	(libstdc++.INC): Simplify rule.
	(myinstallheaders): Consolidate install rules.
	(myinstalldirs): New, make directores.
	(base_headers): Subdivide based on install directory.
	(ext_headers): New.
	(backward_headers): New.
	(headers): Remove.
	(c_headers): Remove, unused.
	(c_shadow_headers): Split up, deal with conditional usage in a
	sane manner.
	* src/Makefile.in: Regenerate.

From-SVN: r37858