2004-07-01 Paolo Bonzini <bonzini@gnu.org>

	* Makefile.def (build_modules): Add bison, byacc, flex,
	m4, texinfo.
	(flags_to_pass): Add FLEX.
	* Makefile.tpl (BUILD_DIR_PREFIX, BASE_EXPORTS): New.
	(BUILD_EXPORTS, HOST_EXPORTS, BASE_TARGET_EXPORTS): Include it.
	(DEFAULT_YACC, USUAL_YACC, DEFAULT_LEX, USUAL_LEX, DEFAULT_M4,
	DEFAULT_MAKEINFO): Remove.
	(CONFIGURED_YACC, CONFIGURED_FLEX, CONFIGURED_BISON,
	CONFIGURED_LEX, CONFIGURED_M4, CONFIGURED_MAKEINFO): Substitute.
	(YACC, FLEX, BISON, LEX, M4, MAKEINFO): Define to look into
	objdir or else use configured tool.
	(all-build): New.
	(all): Depend on it.
	(Build module dependencies): Add.
	* Makefile.in: Regenerate.
	* configure.in: Better support for multiple build modules,
	matching what is done for host/target modules.  Do not look
	for "plausible" locations of build tools if Canadian cross.
	Use autoconf's AC_PROG_CC to find a C compiler.  Define
	BUILD_DIR_PREFIX.  Look for flex, makeinfo and m4.
	* configure: Regenerate.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@84017 138bc75d-0d04-0410-961f-82ee72b054a4