acinclude.m4 (GLIBCXX_CONDITIONAL): New macro.

2003-08-27  Phil Edwards  <pme@gcc.gnu.org>

	* acinclude.m4 (GLIBCXX_CONDITIONAL):  New macro.  Wrap
	AM_CONDITIONAL.  Replace all calls to AM_CONDITIONAL with this one.
	(GLIBCXX_ENABLE_HOSTED):  New macro, sets new variable is_hosted,
	used elsewhere in this file.
	(GLIBCXX_EVALUATE_CONDITIONALS):  New macro...
	* configure.ac:  ...called here to expand all conditionals.
	* Makefile.am:  Conditionalize SUBDIRS on GLIBCXX_HOSTED.
	* include/Makefile.am:  Remove redundant gxx_include_dir assignment.
	(install-freestanding-headers):  New target, a subset of
	install-headers.  Conditionalize install-data-local on GLIBCXX_HOSTED.

	* aclocal.m4, configure, Makefile.in, include/Makefile.in,
	libmath/Makefile.in, libsupc++/Makefile.in, po/Makefile.in,
	src/Makefile.in, testsuite/Makefile.in:  Regenerated.

From-SVN: r70854