X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Ftime.c;h=82ffab2c528e20b0d2a8e608413b606de695ce23;hb=c2ac5ba3964165ee2d21ccd4c6bf8bdc48e1a165;hp=59e9d1efa27150a3bd23fb3a52a20ff8bf6f1cf9;hpb=cf4cb9554515c59eddbde38d1cf236339c37f55f;p=sbcl.git

diff --git a/src/runtime/time.c b/src/runtime/time.c
index 59e9d1e..82ffab2 100644
--- a/src/runtime/time.c
+++ b/src/runtime/time.c
@@ -23,14 +23,28 @@ void get_timezone(time_t when, int *secwest, boolean *dst)
     struct tm ltm, gtm;
     int sw;
 
+#ifdef LISP_FEATURE_WIN32
+    /* No _r versions on Windows, but the API documentation also
+     * doesn't warn them about being non-reentrant... So here's
+     * hoping they actually are -- once Windows grows threads
+     * this better be checked, though.
+     *
+     * The Windows versions also don't support times before the
+     * epoch, so we kludge it. */
+    if (when < 0)
+        when = 0;
     ltm = *localtime(&when);
     gtm = *gmtime(&when);
+#else
+    ltm = *localtime_r(&when, &ltm);
+    gtm = *gmtime_r(&when, &gtm);
+#endif
 
     sw = (((gtm.tm_hour*60)+gtm.tm_min)*60+gtm.tm_sec) - (((ltm.tm_hour*60)+ltm.tm_min)*60+ltm.tm_sec);
     if ((gtm.tm_wday + 1) % 7 == ltm.tm_wday)
-	sw -= 24*3600;
+        sw -= 24*3600;
     else if (gtm.tm_wday == (ltm.tm_wday + 1) % 7)
-	sw += 24*3600;
+        sw += 24*3600;
     *secwest = sw;
     *dst = ltm.tm_isdst;
 }