* systime.h [USG] (EMACS_GET_TZ_OFFSET): Assign to *(offset), not

	(offset).  Don't forget the while corresponding to the do.
	Include USG in the list of systems that have a tzname array.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/systime.h b/src/systime.h
index 1741c8cc046..ab1d6802133 100644
--- a/src/systime.h
+++ b/src/systime.h
@@ -201,14 +201,14 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define EMACS_GET_TZ_OFFSET(offset)                                     \
   do {                                                                  \
     tzset ();                                                           \
-    (offset) = timezone;                                                \
-  }
+    *(offset) = timezone;                                               \
+  } while (0)
 #endif
 
 /* The following sane systems have a tzname array.  The timezone() function
    is a stupid idea; timezone names can only be determined geographically,
    not by Greenwich offset.  */
-#if defined (ultrix) || defined (hpux) || defined (_AIX)
+#if defined (ultrix) || defined (hpux) || defined (_AIX) || defined (USG)
 
 #define EMACS_GET_TZ_NAMES(standard, savings)                           \
   do {                                                                  \