Silence compiler warnings.

src/mesa/pipe/draw/draw_clip.c

@@ -116,7 +116,7 @@ static void interp( const struct clipper *clip,
       const float *pos = dst->clip;
       const float *scale = clip->stage.draw->viewport.scale;
       const float *trans = clip->stage.draw->viewport.translate;
-      const float oow = 1.0 / pos[3];
+      const float oow = 1.0f / pos[3];
 
       dst->data[0][0] = pos[0] * oow * scale[0] + trans[0];
       dst->data[0][1] = pos[1] * oow * scale[1] + trans[1];

src/mesa/pipe/draw/draw_twoside.c

@@ -55,7 +55,7 @@ static void twoside_begin( struct draw_stage *stage )
     * if the triangle is back-facing (negative).
     * sign = -1 for CCW, +1 for CW
     */
-   twoside->sign = (stage->draw->setup.front_winding == PIPE_WINDING_CCW) ? -1 : 1;
+   twoside->sign = (stage->draw->setup.front_winding == PIPE_WINDING_CCW) ? -1.0f : 1.0f;
 
    stage->next->begin( stage->next );
 }

src/mesa/pipe/softpipe/sp_clear.c

@@ -46,7 +46,7 @@ softpipe_clear(struct pipe_context *pipe, struct pipe_surface *ps,
                unsigned clearValue)
 {
    struct softpipe_context *softpipe = softpipe_context(pipe);
-   int x, y, w, h;
+   unsigned x, y, w, h;
 
    softpipe_update_derived(softpipe); /* not needed?? */