[Bug 15397] New: gdi32: path.c fails to build with gcc 4.2, -Werror -O3

http://bugs.winehq.org/show_bug.cgi?id=15397

Summary: gdi32: path.c fails to build with gcc 4.2, -Werror -O3
           Product: Wine
           Version: 1.1.5
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Keywords: source
          Severity: enhancement
          Priority: P2
         Component: gdi32
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

ccache /usr/bin/gcc-4.2 -O3 -c -I. -I. -I../../include -I../../include
-I/usr/include/freetype2  -D__WINESRC__ -D_GDI32_ -D_REENTRANT -fPIC -Wall
-pipe -fno-strength-reduce -fno-strict-aliasing -Wdeclaration-after-statement
-Wwrite-strings -Wpointer-arith  -Werror  -o path.o path.c
cc1: warnings being treated as errors
path.c: In function ‘PATH_PolyPolygon’:
path.c:1079: warning: ‘startpt.y’ may be used uninitialized in this
function
path.c:1079: warning: ‘startpt.x’ may be used uninitialized in this
function
make: *** [path.o] Error 1

Relevant code:
BOOL PATH_PolyPolygon( DC *dc, const POINT* pts, const INT* counts,
                       UINT polygons )
{
   GdiPath     *pPath = &dc->path;
   POINT       pt, startpt;
   UINT        poly, i;
   INT         point;

/* Check that path is open */
   if(pPath->state!=PATH_Open)
      return FALSE;

for(i = 0, poly = 0; poly < polygons; poly++) {
       for(point = 0; point < counts[poly]; point++, i++) {
           pt = pts[i];
           if(!LPtoDP(dc->hSelf, &pt, 1))
               return FALSE;
           if(point == 0) startpt = pt;
           PATH_AddEntry(pPath, &pt, (point == 0) ? PT_MOVETO : PT_LINETO);
       }
       /* win98 adds an extra line to close the figure for some reason */
       PATH_AddEntry(pPath, &startpt, PT_LINETO | PT_CLOSEFIGURE);
   }
   return TRUE;
}