[Freetype] Some odd problems, fixed

[Shish]

I've been having freetype crashes constantly, to the point where no freetype
based apps or libraries (GTK2, QT3) work. After a couple of months of being
limted to GTK1 apps, I did some investigation and hacking about, and got
freetype to work by adding some sanity ckecks.

Below are my changes - they aren't in proper patch format, they don't use your
indent style, and they're for 2.1.4 (2.1.8 is current, I think, but the gentoo
portage entry is a bit slow. Also - I've been using the vanilla freetype, not a
gentoo-ised version. Looking in the CVS it seems my fixes still apply anyway).
But anyway - I'd be very happy if you could add my changes in somehow, so that
next time I update my libraries, I won't have to add them in manually all over
again.

 -- Shish

PS. Just looking at this again, it was a bit hacky, so I cleaned it up - but I
haven't checked the cleaned up version. The idea works, and is obvious, even if
I broke the syntax :/

==============================================================================

ftutil.c: ~120:

  FT_BASE_DEF( void )
  FT_Free( FT_Memory memory, void** P ) {
    FT_TRACE7(( "FT_Free:" ));
    FT_TRACE7(( " Freeing block 0x%08p, ref 0x%08p\n", P, P ? *P : (void*)0 ));
    
    /*
     * The func was getting called with P = 0x4, which isn't null, but
     * isn't a valid address either
     */
    if ( P && (P > 0xFFFF && *P) ) {
      memory->free( memory, *P );
      *P = 0;
    }
  }

==============================================================================

ttcload.c: ~380:

      while ( flag < limit )
      {
        if ( --byte_len < 0 )
          goto Invalid_Outline;

        if(flag == 0) return; /* sanity check */

        *flag++ = c = FT_GET_BYTE();
        if ( c & 8 )
        {
          if ( --byte_len < 0 )
            goto Invalid_Outline;

==============================================================================

ttgload.c: ~666:

      FT_Vector*  pp1;
      FT_Vector*  pp2;

      if(!outline->points) return; /* sanity check */

      /* pp1 = xMin - lsb */
      pp1    = outline->points + n_points;
      pp1->x = load->bbox.xMin - load->left_bearing;
      pp1->y = 0;




        
                
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