trunk's parse.c fails to compile

Hi,

I wasn't able to compile trunk using the latest revision, on my
environment, Mac OS X 10.5 with GNU Bison 2.3. The problem was parse.c
not being able to compile:

gcc -g -O2  -fno-common -pipe -fno-common  -I.
-I.ext/include/i686-darwin9.0.0 -I./include -I.  -DRUBY_EXPORT  -c
parse.c
parse.c:9317:28: error: macro "yyerror" passed 2 arguments, but takes just 1
parse.c: In function 'ruby_yyparse':
parse.c:9317: error: 'yyerror' undeclared (first use in this function)
parse.c:9317: error: (Each undeclared identifier is reported only once
parse.c:9317: error: for each function it appears in.)
parse.c:9321:42: error: macro "yyerror" passed 2 arguments, but takes just 1
parse.c:9439:43: error: macro "yyerror" passed 2 arguments, but takes just 1
make: *** [parse.o] Error 1

At a glance it seems like a problem in tool/ytab.sed, which doesn't
replaced the `yyerror (parser' lines with parser_yyerror instead. Some
lines that were generated by bison but not replaced by the sed script:

     [...]
     yyerror (parser, yymsg);
     [...]
     yyerror (parser, YY_("syntax error"));
     [...]

I was able to change ytab.sed to make trunk build. I am not sure if
the current regex is expected (\< ?), but I don't know very much sed's
regex syntax.

Laurent

Index: tool/ytab.sed
===================================================================
--- tool/ytab.sed	(revision 13909)
+++ tool/ytab.sed	(working copy)
@@ -5,6 +5,6 @@
 a\
 #endif
 }
-s/\<\(yyerror[ 	]*([ 	]*parser,\)/parser_\1/
+s/^[ 	]*\(yyerror[ 	]*([ 	]*parser,\)/parser_\1/
 s!^ *extern char \*getenv();!/* & */!
 s/^\(#.*\)".*\.tab\.c"/\1"parse.c"/