Avoid implicit reliance on memcpy due to large structure copy

src/SystemFonts.c

@@ -320,7 +320,7 @@ void* cc_memchr(const void* ptr, int ch, size_t num) {
 
 	for (; num > 0; num--, a++)
 	{
-		if (*a == ch) return a;
+		if (*a == ch) return (void*)a;
 	}
 	return NULL;
 }

src/freetype/pshints.c

@@ -1703,7 +1703,7 @@
                          FALSE );
 
     /* save a copy of current HintMap to use when drawing initial point */
-    glyphpath->firstHintMap = glyphpath->hintMap;     /* structure copy */
+    ft_memcpy(&glyphpath->firstHintMap, &glyphpath->hintMap, sizeof(glyphpath->hintMap));
   }