From graphviz project:

From graphviz project:
- various memory leak fixes
- various unititialized variable fixes
- consistent inclusion of config.h
- consistent use of gdmalloc
- various scope fixes (added "static"s)
- fix disabling of antialiasing indicated by -ve foreground color.
- fix calculation of brect when varying dpi
- allow building without threading on windows

Changed files:
    gd-graphviz.patch -> 1.1