fill-rule problem ..

i have a simple square with two quadratic bezier segments in it. it is easy
to define this by a single path element.

<svg>
  <path transform="translate(20,20)" stroke-width="2" stroke="blue"
fill="lightgray"
        d="M0,0 H100 V100 H0 Z M10,50 Q30,30 50,50 T90,50" />
</svg>

but i cannot find a fill-rule to completely fill the square. even the new
winding-count rule wouldn't work.

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stefan goessner