Remove a reference to __DATE__ from yasm for non official builds.

frontends/tasm/tasm.c

 /*
  * Program entry point, command line parsing
  *
  *  Copyright (C) 2001-2008  Peter Johnson
  *  Copyright (C) 2007-2008  Samuel Thibault
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 206 matching lines @@
     { "z", 0, opt_ignore, 0,
       N_("Display source line with error message (ignored)"), NULL },
 
     { "b", 0, opt_exe_handler, 0,
       N_("Build a (very) basic .exe file"), NULL },
 };
 
 /* version message */
 /*@observer@*/ static const char *version_msg[] = {
     PACKAGE_STRING,
+#if !defined(DONT_EMBED_BUILD_METADATA) || defined(OFFICIAL_BUILD)
     "Compiled on " __DATE__ ".",
+#endif
     "Copyright (c) 2001-2010 Peter Johnson and other Yasm developers.",
     "Run yasm --license for licensing overview and summary."
 };
 
 /* help messages */
 /*@observer@*/ static const char *help_head = N_(
     "usage: tasm [option]* source [,object] [,listing] [,xref] \n"
     "Options:\n");
 /*@observer@*/ static const char *help_tail = N_(
     "\n"
@@ skipping 754 matching lines @@
 }
 
 static void
 print_yasm_warning(const char *filename, unsigned long line, const char *msg)
 {
     if (line)
         fprintf(errfile, "*%s* %s(%lu) %s\n", _("Warning"), filename, line, msg);
     else
         fprintf(errfile, "*%s* %s %s\n", _("Warning"), filename, msg);
 }