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-rw-r--r--config/c-library.m434
1 files changed, 33 insertions, 1 deletions
diff --git a/config/c-library.m4 b/config/c-library.m4
index 44a3668636..f482f9936c 100644
--- a/config/c-library.m4
+++ b/config/c-library.m4
@@ -1,5 +1,5 @@
# Macros that test various C library quirks
-# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.18 2003/04/12 23:25:42 tgl Exp $
+# $Header: /cvsroot/pgsql/config/c-library.m4,v 1.19 2003/05/22 16:39:26 tgl Exp $
# PGAC_VAR_INT_TIMEZONE
@@ -18,6 +18,38 @@ if test x"$pgac_cv_var_int_timezone" = xyes ; then
fi])# PGAC_VAR_INT_TIMEZONE
+# PGAC_STRUCT_TIMEZONE
+# ------------------
+# Figure out how to get the current timezone. If `struct tm' has a
+# `tm_zone' member, define `HAVE_TM_ZONE'. Also, if the
+# external array `tzname' is found, define `HAVE_TZNAME'.
+# This is the same as the standard macro AC_STRUCT_TIMEZONE, except that
+# tzname[] is checked for regardless of whether we find tm_zone.
+AC_DEFUN([PGAC_STRUCT_TIMEZONE],
+[AC_REQUIRE([AC_STRUCT_TM])dnl
+AC_CHECK_MEMBERS([struct tm.tm_zone],,,[#include <sys/types.h>
+#include <$ac_cv_struct_tm>
+])
+if test "$ac_cv_member_struct_tm_tm_zone" = yes; then
+ AC_DEFINE(HAVE_TM_ZONE, 1,
+ [Define to 1 if your `struct tm' has `tm_zone'. Deprecated, use
+ `HAVE_STRUCT_TM_TM_ZONE' instead.])
+fi
+AC_CACHE_CHECK(for tzname, ac_cv_var_tzname,
+[AC_TRY_LINK(
+[#include <time.h>
+#ifndef tzname /* For SGI. */
+extern char *tzname[]; /* RS6000 and others reject char **tzname. */
+#endif
+],
+[atoi(*tzname);], ac_cv_var_tzname=yes, ac_cv_var_tzname=no)])
+if test $ac_cv_var_tzname = yes; then
+ AC_DEFINE(HAVE_TZNAME, 1,
+ [Define to 1 if you have the external array `tzname'.])
+fi
+])# PGAC_STRUCT_TIMEZONE
+
+
# PGAC_FUNC_GETTIMEOFDAY_1ARG
# ---------------------------
# Check if gettimeofday() has only one arguments. (Normal is two.)