*: compile fixes for 64-bit build

diff --git a/findutils/find.c b/findutils/find.c
index 86f787d..2158468 100644
--- a/findutils/find.c
+++ b/findutils/find.c
@@ -881,7 +881,9 @@
 				fileAction,     /* file action */
 				fileAction,     /* dir action */
 #if ENABLE_FEATURE_FIND_MAXDEPTH
-				(void*)maxdepth,/* user data */
+				/* double cast suppresses
+				 * "cast to ptr from int of different size" */
+				(void*)(ptrdiff_t)maxdepth,/* user data */
 #else
 				NULL,           /* user data */
 #endif