Handle proper substraction of unsigned numbers.
diff --git a/dlls/opengl32/wgl.c b/dlls/opengl32/wgl.c
index 4d5a257..05d7ce1 100644
--- a/dlls/opengl32/wgl.c
+++ b/dlls/opengl32/wgl.c
@@ -595,7 +595,7 @@
glNewList(listBase++, GL_COMPILE);
if (needed_size != 0) {
glBitmap(gm.gmBlackBoxX, gm.gmBlackBoxY,
- 0 - gm.gmptGlyphOrigin.x, gm.gmBlackBoxY - gm.gmptGlyphOrigin.y,
+ 0 - (int) gm.gmptGlyphOrigin.x, (int) gm.gmBlackBoxY - (int) gm.gmptGlyphOrigin.y,
gm.gmCellIncX, gm.gmCellIncY,
gl_bitmap);
} else {