2003-04-14 Jan Nieuwenhuizen <janneke@gnu.org>

2003-04-14  Jan Nieuwenhuizen  <janneke@gnu.org>

	* Backport flex issue:

	    * stepmake/aclocal.m4: Include compile fix for broken flex, as
	    used in includable-lexer.hh.

	    * lily/lexer.ll (avoid_silly_flex_induced_gcc_warnings): Disable.

	    * lily/includable-lexer.cc [!HAVE_FLEXLEXER_YY_CURRENT_BUFFER]
	    (yy_current_buffer): New macro, compile hacks for flex 2.5.29.

	    * lily/include/includable-lexer.hh:
	    * lily/lexer.ll: Hack for multiple include of FlexLexer.h.

	    * config.hh.in (HAVE_FLEXLEXER_YY_CURRENT_BUFFER): Add.

	    * aclocal.m4: Regenerate.

	    * stepmake/aclocal.m4 (STEPMAKE_FLEXLEXER): Check for
	    yyFlexLexer.yy_current_buffer, which was removed in flex-2.5.29.