--- a/rogue3/configure.ac	Tue May 04 21:03:47 2021 -0400
+++ b/rogue3/configure.ac	Tue May 11 22:30:03 2021 -0400
@@ -1,8 +1,8 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-AC_PREREQ(2.56)
-AC_INIT([Rogue],[3.6.4], [yendor@rogueforge.net], [rogue3])
+AC_PREREQ([2.69])
+AC_INIT([Rogue],[3.6.4],[elwin@sdf.org],[rogue3])
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_FILES([Makefile rogue.6 rogue.r])
 
@@ -13,8 +13,6 @@
 # Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS([arpa/inet.h pwd.h errno.h fcntl.h limits.h nlist.h stdlib.h string.h sys/ioctl.h termios.h unistd.h utmp.h utmpx.h term.h ncurses/term.h process.h])
-# WARN: the sources often don't include the headers when needed.  That is one
-# reason why adding "-Wall" to CFLAGS produces 1246 lines of messages.
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_TYPE_UID_T
@@ -25,7 +23,6 @@
 AC_PROG_GCC_TRADITIONAL
 AC_FUNC_LSTAT
 AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK
-AC_TYPE_SIGNAL
 AC_FUNC_STAT
 AC_FUNC_VPRINTF
 AC_CHECK_FUNCS([erasechar killchar alarm getpass memset setenv strchr nlist _spawnl spawnl getpwuid loadav getloadavg strerror setgid setuid getuid getgid])
@@ -55,11 +52,11 @@
 AC_SUBST(DOCS_NROFF)
 AC_SUBST(DOCS_NONE)
 
-AC_ARG_WITH(program-name, AC_HELP_STRING([--with-program-name=NAME],[alternate executable name]),[progname="$withval" ], [progname="rogue3"] )
+AC_ARG_WITH(program-name, AS_HELP_STRING([--with-program-name=NAME],[alternate executable name]),[progname="$withval" ], [progname="rogue3"] )
 PROGRAM=$progname
 AC_SUBST(PROGRAM)
 
-AC_ARG_ENABLE(setgid, AC_HELP_STRING([--enable-setgid=NAME],[install executable as setgid with group ownership of NAME @<:@default=no@:>@]),[],[])
+AC_ARG_ENABLE(setgid, AS_HELP_STRING([--enable-setgid=NAME],[install executable as setgid with group ownership of NAME @<:@default=no@:>@]),[],[])
 AC_MSG_CHECKING([if using setgid execute bit])
 if test "x$enable_setgid" = "xno" ; then
 GROUPOWNER=
@@ -80,7 +77,7 @@
 
 AC_SUBST(GROUPOWNER)
 
-AC_ARG_ENABLE([scorefile],[AC_HELP_STRING([--enable-scorefile=SCOREFILE], [enable scoreboard with given filename])],[],[])
+AC_ARG_ENABLE([scorefile],[AS_HELP_STRING([--enable-scorefile=SCOREFILE],[enable scoreboard with given filename])],[],[])
 AC_MSG_CHECKING([for scoreboard file])
 if test "x$enable_scorefile" = "xno" ; then
 SCOREFILE=
@@ -101,7 +98,7 @@
 
 AC_SUBST(SCOREFILE)
 
-AC_ARG_ENABLE([logfile],[AC_HELP_STRING([--enable-logfile=LOGFILE], [enable logfile with given filename])],[],[])
+AC_ARG_ENABLE([logfile],[AS_HELP_STRING([--enable-logfile=LOGFILE],[enable logfile with given filename])],[],[])
 AC_MSG_CHECKING([for log file])
 if test "x$enable_logfile" = "xno" ; then
 LOGFILE=
@@ -122,7 +119,7 @@
 
 AC_SUBST(LOGFILE)
 
-AC_ARG_ENABLE([savedir],[AC_HELP_STRING([--enable-savedir=SAVEDIR], [enable systemwide location for saved games])],[],[enable_savedir="no"])
+AC_ARG_ENABLE([savedir],[AS_HELP_STRING([--enable-savedir=SAVEDIR],[enable systemwide location for saved games])],[],[enable_savedir="no"])
 AC_MSG_CHECKING([for save directory])
 if test "x$enable_savedir" = "xno" ; then
 SAVEDIR=
@@ -145,7 +142,7 @@
 
 AC_SUBST(SAVEDIR)
 
-AC_ARG_ENABLE([wizardmode],[AC_HELP_STRING([--enable-wizardmode], [enable availability of wizard mode @<:@default=no@:>@])],[],[])
+AC_ARG_ENABLE([wizardmode],[AS_HELP_STRING([--enable-wizardmode],[enable availability of wizard mode @<:@default=no@:>@])],[],[])
 AC_MSG_CHECKING([if wizard mode is enabled])
 if test "x$enable_wizardmode" = "xno" ; then
 AC_MSG_RESULT([no])
@@ -156,7 +153,7 @@
 AC_MSG_RESULT([yes])
 fi
 
-AC_ARG_ENABLE([maxload],[AC_HELP_STRING([--enable-maxload], [enable maxload @<:@default=no@:>@])],[],[])
+AC_ARG_ENABLE([maxload],[AS_HELP_STRING([--enable-maxload],[enable maxload @<:@default=no@:>@])],[],[])
 AC_MSG_CHECKING([runtime execution limit (maximum system load average)])
 if test "x$enable_maxload" = "xyes" ; then
 AC_DEFINE([MAXLOAD], [100], [Define if maxload feature should be enabled])
@@ -170,7 +167,7 @@
 AC_MSG_RESULT([$enable_maxload])
 fi
 
-AC_ARG_ENABLE([maxusers],[AC_HELP_STRING([--enable-maxusers], [enable maxuser @<:@default=no@:>@])],[],[])
+AC_ARG_ENABLE([maxusers],[AS_HELP_STRING([--enable-maxusers],[enable maxuser @<:@default=no@:>@])],[],[])
 AC_MSG_CHECKING([runtime execution limit (maximum online system users)])
 if test "x$enable_maxusers" = "xyes" ; then
 AC_DEFINE([MAXUSERS], [100], [Define if maxusers feature should be enabled])