From 311bed3fbafec4ec6dc1792d73b18b910da4c8f6 Mon Sep 17 00:00:00 2001
From: rocky <rocky>
Date: Thu, 27 Oct 2005 03:26:39 +0000
Subject: [PATCH] Attempt to deal with OS's (like BSDI) that don't have an
 extern long timezone.

---
 configure.ac       | 21 ++++++++++++++++++++-
 lib/udf/udf_time.c |  6 +++++-
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 698787e3..a0b62ef3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,7 +19,7 @@ define(RELEASE_NUM, 77)
 define(CDIO_VERSION_STR, 0.$1cvs)
 
 AC_PREREQ(2.52)
-AC_REVISION([$Id: configure.ac,v 1.178 2005/10/27 03:03:42 rocky Exp $])dnl
+AC_REVISION([$Id: configure.ac,v 1.179 2005/10/27 03:26:39 rocky Exp $])dnl
 AC_INIT(libcdio, CDIO_VERSION_STR(RELEASE_NUM))
 AC_CONFIG_SRCDIR(src/cd-info.c)
 
@@ -283,6 +283,25 @@ else
 fi
 dnl
 
+dnl bitfield order
+AC_MSG_CHECKING(extern long timezone variable)
+AC_TRY_RUN([
+#ifdef NEED_TIMEZONEVAR
+#define timezonevar 1
+#endif
+
+#include <time.h>
+extern long timezone;
+int main(int argc, char **argv) {
+  long test_timezone = timezone;
+  return 0; 
+}
+], [AC_MSG_RESULT(yes); 
+   AC_DEFINE([HAVE_TIMEZONE_VAR], 1, 
+	[Define if you have an extern long timenzone variable.])],
+   [AC_MSG_RESULT(no)])
+dnl
+
 dnl AM_PROG_LIBTOOL tests whether we have GNU ld
 dnl this must come before checking --with-versioned-libs
 dnl which requires GNU ld.
diff --git a/lib/udf/udf_time.c b/lib/udf/udf_time.c
index c971c621..2e09bd68 100644
--- a/lib/udf/udf_time.c
+++ b/lib/udf/udf_time.c
@@ -93,7 +93,9 @@ static time_t year_seconds[MAX_YEAR_SECONDS]= {
   /*2038*/ SPY(68,17,0)
 };
 
+#ifdef HAVE_TIMEZONE_VAR
 extern long timezone;
+#endif
 
 #define SECS_PER_HOUR	(60 * 60)
 #define SECS_PER_DAY	(SECS_PER_HOUR * 24)
@@ -142,8 +144,10 @@ udf_time_to_stamp(udf_timestamp_t *dest, struct timespec ts)
   long int days, rem, y;
   const unsigned short int *ip;
   int16_t offset;
-  
+
+#ifdef HAVE_TIMEZONE_VAR  
   offset = -timezone;
+#endif
   
   if (!dest)
     return NULL;