error: ‘else’ without a previous ‘if’

[tys lefering]

Hi,
when updating today bison, gnulib and autoconf from git repo
and installing bison the generated yacc parser does not compile
with this error when using gcc or g++:

y.tab.c: In function ‘yyparse’:
y.tab.c:5998: error: ‘else’ without a previous ‘if’

used the YYERROR_VERBOSE in the parser code like this:

/* let parser print verbose error message at parse error */
#define YYERROR_VERBOSE 1

source code part of the parser is here
  /* If not already recovering from an error, report this error.  */
  if (!yyerrstatus)
    {
      ++yynerrs;
#if ! YYERROR_VERBOSE
      yyerror (YY_("syntax error"));
#else
      while (1)
        {
          int yysyntax_error_status =
            yysyntax_error (&yymsg_alloc, &yymsg, yystate, yytoken);
          if (yysyntax_error_status == 2 && 0 < yymsg_alloc)
            {
              if (yymsg != yymsgbuf)
                YYSTACK_FREE (yymsg);
              yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc);
              if (yymsg)
                continue;
              yymsg = yymsgbuf;
              yymsg_alloc = sizeof yymsgbuf;
            }
          if (yysyntax_error_status == 0)
            yyerror (yymsg);
          else  /* <-- y.tab.c:5998: error: ‘else’ without a previous ‘if’*/
            yyerror (YY_("syntax error"));
          if (yysyntax_error_status == 2)
            goto yyexhaustedlab;
          break;
        }
#endif
    }

version from bison git:

bison (GNU Bison) 2.4.464-fca9c-dirty
Written by Robert Corbett and Richard Stallman.

Copyright (C) 2008 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

gcc version:

gcc (SUSE Linux) 4.4.1 [gcc-4_4-branch revision 150839]
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

the generated bison parser looks good to me but gcc does not want it.

when changing parser code to this adding '{' and '}' gcc / g++ does accept
it:

if (yysyntax_error_status == 0) {
  yyerror (yymsg);
} else {
  yyerror (YY_("syntax error"));
}

any solution ? maybe add the '{' '}' in the yacc parser code ?

y.tab.c
Description: Text Data