[LLVMdev] More configure problems

[Reid Spencer]

On Mon, 2004-08-30 at 23:58, Henrik Bach wrote:
> >From: Jeff Cohen <jeffc at jolt-lang.org>
> >Date: Mon, 30 Aug 2004 21:46:42 -0700
> 
> >FileParser.tab.c: In function `int Fileparse()':
> >FileParser.tab.c:2043: error: syntax error before `goto'
> >
> >The offending lines bison generated are:
> >
> >/*----------------------------------------------------.
> >| yyerrlab1 -- error raised explicitly by an action.  |
> >`----------------------------------------------------*/
> >yyerrlab1:
> >
> >   /* Suppress GCC warning that yyerrlab1 is unused when no action
> >      invokes YYERROR.  */
> >#if defined (__GNUC_MINOR__) && 2093 <= (__GNUC__ * 1000 + __GNUC_MINOR__)
> >   __attribute__ ((__unused__))
> >#endif
> >
> >   goto yyerrlab2;     <== line 2043
> >
> >I'm using bison 1.875.  But it worked the last time, so I don't know why
> >it doesn't work now.  Deleting the __attribute__ clause fixes it.
> >
> 
> Or correctly terminate the statement/line with ; (although it becomes a 
> warning about an empty statement).
> 
> /Henrik

Actually the problem is that you can't apply __attribute((__unused__))
to a label in the versions of GCC that Bison is suggesting by the #if
directive. Please see

http://mail.gnu.org/archive/html/bug-bison/2004-01/msg00011.html

for the details on this bison bug.

Reid.
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