[glib] Fix Win32 build

[Tor Lillqvist <tml src gnome org>]

commit 3c86a77ae5efa57a6f62c2eeec9c67aa66246496
Author: Tor Lillqvist <tml iki fi>
Date:   Thu Aug 26 12:41:46 2010 +0300

    Fix Win32 build

 configure.ac           |    1 +
 glib/gdatetime.c       |    2 +-
 glib/tests/gdatetime.c |   26 +++++++++++++++++++++++---
 3 files changed, 25 insertions(+), 4 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2c0c958..dab2049 100644
--- a/configure.ac
+++ b/configure.ac
@@ -882,6 +882,7 @@ AC_CHECK_MEMBERS([struct stat.st_blksize, struct stat.st_blocks, struct statfs.f
 #endif])
 # struct statvfs.f_basetype is available on Solaris but not for Linux. 
 AC_CHECK_MEMBERS([struct statvfs.f_basetype],,, [#include <sys/statvfs.h>])
+AC_CHECK_MEMBERS([struct tm.tm_gmtoff])
 
 # Checks for libcharset
 AM_LANGINFO_CODESET
diff --git a/glib/gdatetime.c b/glib/gdatetime.c
index baf0c5f..d03ac0c 100644
--- a/glib/gdatetime.c
+++ b/glib/gdatetime.c
@@ -1700,7 +1700,7 @@ g_date_time_new_from_epoch (gint64 t) /* IN */
   localtime_r (&tt, &tm);
 #else
   {
-    struct tm *ptm = localtime (&timet);
+    struct tm *ptm = localtime (&tt);
 
     if (ptm == NULL)
       {
diff --git a/glib/tests/gdatetime.c b/glib/tests/gdatetime.c
index b651b5b..f0a0e55 100644
--- a/glib/tests/gdatetime.c
+++ b/glib/tests/gdatetime.c
@@ -54,9 +54,9 @@ get_localtime_tm (time_t     time_,
         g_return_if_fail_warning (G_LOG_DOMAIN, G_STRFUNC, "ptm != NULL");
 #endif
 
-        tm.tm_mon = 0;
-        tm.tm_mday = 1;
-        tm.tm_year = 100;
+        retval->tm_mon = 0;
+        retval->tm_mday = 1;
+        retval->tm_year = 100;
       }
     else
       memcpy ((void *) retval, (void *) ptm, sizeof (struct tm));
@@ -718,7 +718,18 @@ test_GDateTime_utc_now (void)
   struct tm  tm;
 
   t = time (NULL);
+#ifdef HAVE_GMTIME_R
   gmtime_r (&t, &tm);
+#else
+  {
+    struct tm *tmp = gmtime (&t);
+    /* Assume gmtime() can't fail as we got t from time(NULL). (Note
+     * that on Windows, gmtime() *is* MT-safe, it uses a thread-local
+     * buffer.)
+     */
+    memcpy (&tm, tmp, sizeof (struct tm));
+  }
+#endif
   dt = g_date_time_new_utc_now ();
   g_assert_cmpint (tm.tm_year + 1900, ==, g_date_time_get_year (dt));
   g_assert_cmpint (tm.tm_mon + 1, ==, g_date_time_get_month (dt));
@@ -741,7 +752,9 @@ test_GDateTime_get_utc_offset (void)
 
   dt = g_date_time_new_now ();
   ts = g_date_time_get_utc_offset (dt);
+#ifdef HAVE_STRUCT_TM_TM_GMTOFF
   g_assert_cmpint (ts, ==, (tm.tm_gmtoff * G_TIME_SPAN_SECOND));
+#endif
   g_date_time_unref (dt);
 }
 
@@ -791,7 +804,14 @@ test_GDateTime_to_utc (void)
   struct tm  tm;
 
   t = time (NULL);
+#ifdef HAVE_GMTIME_R
   gmtime_r (&t, &tm);
+#else
+  {
+    struct tm *tmp = gmtime (&t);
+    memcpy (&tm, tmp, sizeof (struct tm));
+  }
+#endif
   dt2 = g_date_time_new_now ();
   dt = g_date_time_to_utc (dt2);
   g_assert_cmpint (tm.tm_year + 1900, ==, g_date_time_get_year (dt));