diff --git a/configure.ac b/configure.ac
index 26fcf7a8..3350365a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,7 @@ define(RELEASE_NUM, 71)
 define(CDIO_VERSION_STR, 0.$1cvs)
 
 AC_PREREQ(2.52)
-AC_REVISION([$Id: configure.ac,v 1.102 2004/10/28 11:13:40 rocky Exp $])dnl
+AC_REVISION([$Id: configure.ac,v 1.103 2004/10/30 00:38:43 rocky Exp $])dnl
 AC_INIT(libcdio, CDIO_VERSION_STR(RELEASE_NUM))
 AC_CONFIG_SRCDIR(src/cd-info.c)
 AM_INIT_AUTOMAKE
@@ -114,7 +114,7 @@ AM_PATH_LIBPOPT(,
 dnl headers
 
 AC_HEADER_STDC
-AC_CHECK_HEADERS(glob.h)
+AC_CHECK_HEADERS(glob.h stdbool.h)
 
 dnl compiler
 AC_C_BIGENDIAN
@@ -325,6 +325,27 @@ AC_CHECK_MEMBER([struct tm.tm_gmtoff],
                  ,
                  [#include <time.h>])
 
+if test $ac_cv_member_struct_tm_tm_gmtoff = yes ; then
+  AC_MSG_CHECKING([whether time.h defines daylight and timezone variables])
+  AC_TRY_RUN([
+#include <time.h>
+
+
+       extern char *tzname[2];
+       extern long timezone;
+       extern int daylight;
+
+int
+ main() {
+  return (timezone != 0) + daylight;
+}
+  ],[AC_DEFINE(HAVE_DAYLIGHT, 1,
+   [Define if time.h defines extern long timezone and int daylight vars.])
+   has_daylight=yes
+   ],[has_daylight=no])
+   AC_MSG_RESULT($has_daylight)
+fi
+
 if test x$enable_joliet = x; then
 AC_ARG_ENABLE(joliet,
 	[  --disable-joliet          don't include Joliet extension support],
diff --git a/lib/iso9660.c b/lib/iso9660.c
index 463868f2..bff1b8a3 100644
--- a/lib/iso9660.c
+++ b/lib/iso9660.c
@@ -1,5 +1,5 @@
 /*
-    $Id: iso9660.c,v 1.22 2004/10/26 06:33:49 rocky Exp $
+    $Id: iso9660.c,v 1.23 2004/10/30 00:38:43 rocky Exp $
 
     Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org>
     Copyright (C) 2003, 2004 Rocky Bernstein <rocky@panix.com>
@@ -37,7 +37,7 @@
 #include <stdio.h>
 #endif
 
-static const char _rcsid[] = "$Id: iso9660.c,v 1.22 2004/10/26 06:33:49 rocky Exp $";
+static const char _rcsid[] = "$Id: iso9660.c,v 1.23 2004/10/30 00:38:43 rocky Exp $";
 
 /* some parameters... */
 #define SYSTEM_ID         "CD-RTOS CD-BRIDGE"
@@ -101,9 +101,11 @@ iso9660_get_dtime (const iso9660_dtime_t *idr_date, bool b_localtime,
 #if defined(HAVE_TM_GMTOFF) && defined(HAVE_TZSET)
   if (b_localtime) {
     tzset();
+    p_tm->tm_zone   = (char *) tzname;
+#if defined(HAVE_DAYLIGHT)
     p_tm->tm_isdst  = daylight;
     p_tm->tm_gmtoff = timezone;
-    p_tm->tm_zone   = (char *) tzname;
+#endif
   }
 #endif