diff --git a/sys/amiga/amidos.c b/sys/amiga/amidos.c
index 097e57905..6aa0577fe 100644
--- a/sys/amiga/amidos.c
+++ b/sys/amiga/amidos.c
@@ -45,44 +45,6 @@ amiga_self_assign(void)
         UnLock(dup);
 }
 
-/* Generate an RFC 4122 v4 UUID for this game.  Draw bytes from the
-   core's ISAAC64 RNG, which init_random() seeded before we get here. */
-void
-get_nhuuid(void)
-{
-    uchar bytes[16];
-    int i;
-
-    if (svn.nhuuid[0])
-        return;
-
-    for (i = 0; i < 16; i++)
-        bytes[i] = (uchar) rn2(256);
-    /* RFC 4122: version=4 (random), variant=10. */
-    bytes[6] = (bytes[6] & 0x0F) | 0x40;
-    bytes[8] = (bytes[8] & 0x3F) | 0x80;
-
-    Snprintf(svn.nhuuid, sizeof svn.nhuuid,
-             "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
-             "%02x%02x%02x%02x%02x%02x",
-             bytes[0], bytes[1], bytes[2], bytes[3],
-             bytes[4], bytes[5],
-             bytes[6], bytes[7],
-             bytes[8], bytes[9],
-             bytes[10], bytes[11], bytes[12], bytes[13],
-             bytes[14], bytes[15]);
-}
-
-void
-free_nhuuid(void)
-{
-    int i;
-
-    for (i = 0; i < SIZE(svn.nhuuid); i++) {
-        svn.nhuuid[i] = 0;
-    }
-}
-
 #include "winext.h"
 #include "winproto.h"
 
diff --git a/sys/share/pcmain.c b/sys/share/pcmain.c
index 24495392b..2eea63724 100644
--- a/sys/share/pcmain.c
+++ b/sys/share/pcmain.c
@@ -12,7 +12,7 @@
 #include <signal.h>
 #endif
 
-#if !defined(AMIGA) && !defined(__DJGPP__)
+#if !defined(AMIGA) && !defined(__DJGPP__) && !defined(__MINT__)
 #include <sys\stat.h>
 #else
 #include <sys/stat.h>
@@ -27,9 +27,7 @@ char orgdir[PATHLEN]; /* also used in pcsys.c, amidos.c */
 
 #ifdef TOS
 boolean run_from_desktop = TRUE; /* should we pause before exiting?? */
-#ifdef __GNUC__
-long _stksize = 16 * 1024;
-#endif
+/* _stksize is owned by sys/atari/tos.c for the 5.0 GEM build. */
 #endif
 
 #ifdef AMIGA
@@ -119,7 +117,6 @@ _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);*/
 #endif
 
 #ifdef TOS
-    long clock_time;
     if (*argv[0]) { /* only a CLI can give us argv[0] */
         gh.hname = argv[0];
         run_from_desktop = FALSE;
@@ -342,10 +339,6 @@ _CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);*/
 /*
  * It seems you really want to play.
  */
-#ifdef TOS
-    if (comp_times((long) time(&clock_time)))
-        error("Your clock is incorrectly set!");
-#endif
     if (!dlb_init()) {
         pline(
             "%s\n%s\n%s\n%s\n\nNetHack was unable to open the required file "
@@ -779,7 +772,48 @@ free_nhuuid(void)
 }
 #endif
 
-#if defined(CROSS_TO_AMIGA)
+#if defined(CROSS_TO_ATARI) || defined(CROSS_TO_AMIGA)
+/* Generate an RFC 4122 v4 UUID for this game.  Draw bytes from the
+   core's ISAAC64 RNG, which init_random() seeded before we get here. */
+void
+get_nhuuid(void)
+{
+    uchar bytes[16];
+    int i;
+
+    if (svn.nhuuid[0])
+        return;
+
+    for (i = 0; i < 16; i++)
+        bytes[i] = (uchar) rn2(256);
+    /* RFC 4122: version=4 (random), variant=10. */
+    bytes[6] = (bytes[6] & 0x0F) | 0x40;
+    bytes[8] = (bytes[8] & 0x3F) | 0x80;
+
+    Snprintf(svn.nhuuid, sizeof svn.nhuuid,
+             "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
+             "%02x%02x%02x%02x%02x%02x",
+             bytes[0], bytes[1], bytes[2], bytes[3],
+             bytes[4], bytes[5],
+             bytes[6], bytes[7],
+             bytes[8], bytes[9],
+             bytes[10], bytes[11], bytes[12], bytes[13],
+             bytes[14], bytes[15]);
+}
+
+void
+free_nhuuid(void)
+{
+    int i;
+
+    for (i = 0; i < SIZE(svn.nhuuid); i++) {
+        svn.nhuuid[i] = 0;
+    }
+}
+#endif
+
+#if defined(CROSS_TO_AMIGA) || defined(CROSS_TO_ATARI)
+#ifdef CROSS_TO_AMIGA
 void msmsg
 VA_DECL(const char *, fmt)
 {
@@ -790,6 +824,18 @@ VA_DECL(const char *, fmt)
     VA_END();
     return;
 }
+#endif
+#ifdef CROSS_TO_ATARI
+void
+msmsg(const char *fmt, ...)
+{
+    va_list ap;
+    va_start(ap, fmt);
+    vprintf(fmt, ap);
+    va_end(ap);
+    fflush(stdout);
+}
+#endif
 
 unsigned long
 sys_random_seed(void)