init span.y=0 to silence warnings
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@ -196,6 +196,7 @@ static void NAME(GLcontext *ctx, const SWvertex *v0,
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(void) swrast;
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INIT_SPAN(span, GL_POLYGON, 0, 0, 0);
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span.y = 0; /* silence warnings */
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#ifdef INTERP_Z
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(void) fixedToDepthShift;
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