File nethack-reproducible.patch of Package nethack

Author: Bernhard M. Wiedemann <bwiedemann suse de>
Date; 2019-08-08

Do not add build date into binary
to make package build reproducible

https://bugzilla.opensuse.org/show_bug.cgi?id=1047218 

It might be possible to upstream a variant of this patch.

Without this patch, we got such a diff:

 /usr/lib/nethack/nethack.tty differs in ELF section .rodata
   178a20 556e6978 204e6574 4861636b 20566572  Unix NetHack Ver
   178a30 73696f6e 20332e34 2e33202d 206c6173  sion 3.4.3 - las
 - 178a40 74206275 696c6420 54687520 41756720  t build Thu Aug
 - 178a50 20382030 373a3133 3a323520 32303139   8 07:13:25 2019
 + 178a40 74206275 696c6420 53617420 53657020  t build Sat Sep
 + 178a50 20392032 303a3239 3a343120 32303334   9 20:29:41 2034
   178a60 1b293000 1b285500 1b284200 243c3530  .)0..(U..(B.$<50


Index: nethack-3.4.3/util/makedefs.c
===================================================================
--- nethack-3.4.3.orig/util/makedefs.c
+++ nethack-3.4.3/util/makedefs.c
@@ -563,7 +563,7 @@ do_date()
 	(void) time(&clocktim);
 	Strcpy(cbuf, ctime(&clocktim));
 #else
-	(void) time((time_t *)&clocktim);
+	//(void) time((time_t *)&clocktim);
 	Strcpy(cbuf, ctime((time_t *)&clocktim));
 #endif
 	for (c = cbuf; *c; c++) if (*c == '\n') break;