# CIT_STRUCT_TM
# ------------------
# Figure out how to get the current GMT offset.  If `struct tm' has a
# `tm_gmtoff' member, define `HAVE_STRUCT_TM_TM_GMTOFF'.  Otherwise, if the
# external variable `timezone' is found, define `HAVE_TIMEZONE'.
AC_DEFUN([CIT_STRUCT_TM],
[AC_REQUIRE([AC_STRUCT_TM])dnl
AC_CHECK_MEMBERS([struct tm.tm_gmtoff],,,[#include <sys/types.h>
#include <$ac_cv_struct_tm>
])
if test "$ac_cv_member_struct_tm_tm_gmtoff" != yes; then
  AC_CACHE_CHECK(for timezone, ac_cv_var_timezone,
[AC_TRY_LINK(
[#include <time.h>],
[printf("%ld", (long)timezone);], ac_cv_var_timezone=yes, ac_cv_var_timezone=no)])
  if test $ac_cv_var_timezone = yes; then
    AC_DEFINE(HAVE_TIMEZONE, 1,
              [Define if you don't have `tm_gmtoff' but do have the external
               variable `timezone'.])
  fi
fi
])# CIT_STRUCT_TM

AC_DEFUN([AC_CHECK_DB],[
for lib in $1
do
   AS_VAR_PUSHDEF([ac_tr_db], [ac_cv_db_lib_${lib}])dnl
   bogo_saved_LIBS="$LIBS"
   LIBS="$LIBS -l$lib"
   AC_CACHE_CHECK([for db_create in -l${lib}], ac_tr_db,
      [AC_TRY_LINK([#include <db.h>], [int foo=db_create((void *)0, (void *) 0, 
0 )],
                   [AS_VAR_SET(ac_tr_db, yes)],
                   [AS_VAR_SET(ac_tr_db, no)])
      ])
   AS_IF([test AS_VAR_GET(ac_tr_db) = yes],
         [$2
	  LIBS="$bogo_saved_LIBS"
	  SERVER_LIBS="$SERVER_LIBS -l$lib"
          db=yes],
         [LIBS="$bogo_saved_LIBS"
          db=no])
   AS_VAR_POPDEF([ac_tr_db])dnl
test "$db" = "yes" && break
done
if test "$db" = "no"; then
$3
fi
])# AC_CHECK_DB