X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/bfad64befb4d6696fdfb63b119666eec4bac6fb3..ec68c7d9fca00e976df02842dc2c9d5a523567af:/sbr/dtime.c

diff --git a/sbr/dtime.c b/sbr/dtime.c
index acab8774..52f3a790 100644
--- a/sbr/dtime.c
+++ b/sbr/dtime.c
@@ -1,6 +1,4 @@
-
-/*
- * dtime.c -- time/date routines
+/* dtime.c -- time/date routines
  *
  * This code is Copyright (c) 2002, by the authors of nmh.  See the
  * COPYRIGHT file in the root directory of the nmh distribution for
@@ -41,12 +39,6 @@ char *tw_ldotw[] = {
     "Saturday",  NULL
 };
 
-struct zone {
-    char *std;
-    char *dst;
-    int shift;
-};
-
 static int dmsize[] = {
     31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
 };
@@ -108,7 +100,14 @@ dlocaltime (time_t *clock)
     if (tm->tm_isdst)			/* if DST is in effect */
 	tw.tw_zone -= 60;		/* reset to normal offset */
 #else
-    tzset();
+    {
+        static bool deja_vu;
+
+        if (!deja_vu) {
+            deja_vu = true;
+            tzset();
+        }
+    }
     tw.tw_zone = -(timezone / 60);
 #endif
 
@@ -232,9 +231,9 @@ dtime (time_t *clock, int alpha_timezone)
     if (alpha_timezone)
 	/* use alpha-numeric timezones */
 	return dasctime (dlocaltime (clock), TW_NULL);
-    else
-	/* use numeric timezones */
-	return dasctime (dlocaltime (clock), TW_ZONE);
+
+    /* use numeric timezones */
+    return dasctime (dlocaltime (clock), TW_ZONE);
 }