Fix 32-bit build.

  libc/tzcode/localtime.c: In function 'differ_by_repeat':
  libc/tzcode/localtime.c:338:2: error: comparison is always false due to limited range of data type [-Werror=type-limits]

Change-Id: Ic84be6391a66e9d50ed98f41d865387c77a60ffa
diff --git a/libc/tzcode/localtime.c b/libc/tzcode/localtime.c
index a52e334..e2599b4 100644
--- a/libc/tzcode/localtime.c
+++ b/libc/tzcode/localtime.c
@@ -335,7 +335,9 @@
 {
 	if (TYPE_BIT(time_t) - TYPE_SIGNED(time_t) < SECSPERREPEAT_BITS)
 			return 0;
+#if __LP64__ // 32-bit Android only has a signed 32-bit time_t; 64-bit Android is fixed.
 	return t1 - t0 == SECSPERREPEAT;
+#endif
 }
 
 static int