--- a/urogue/configure.ac	Tue May 04 21:03:47 2021 -0400
+++ b/urogue/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([UltraRogue],[1.07], [yendor@rogueforge.net], [urogue])
+AC_PREREQ([2.69])
+AC_INIT([UltraRogue],[1.07],[elwin@sdf.org],[urogue])
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_FILES([Makefile])
 
@@ -23,7 +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])
@@ -52,11 +51,11 @@
 AC_SUBST(DOCS_NROFF)
 AC_SUBST(DOCS_NONE)
 
-AC_ARG_WITH(program-name, AC_HELP_STRING([--with-program-name=NAME],[alternate executable name]),[progname="$withval" ], [progname="urogue"] )
+AC_ARG_WITH(program-name, AS_HELP_STRING([--with-program-name=NAME],[alternate executable name]),[progname="$withval" ], [progname="urogue"] )
 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=
@@ -77,7 +76,7 @@
 
 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=
@@ -98,7 +97,7 @@
 
 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=
@@ -119,7 +118,7 @@
 
 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=
@@ -142,7 +141,7 @@
 
 AC_SUBST(SAVEDIR)
 
-AC_ARG_ENABLE([chardir],[AC_HELP_STRING([--enable-chardir=CHARDIR], [enable systemwide location for character files])],[],[enable_chardir="no"])
+AC_ARG_ENABLE([chardir],[AS_HELP_STRING([--enable-chardir=CHARDIR],[enable systemwide location for character files])],[],[enable_chardir="no"])
 AC_MSG_CHECKING([for character directory])
 if test "x$enable_chardir" = "xno" ; then
 CHARDIR=
@@ -165,7 +164,7 @@
 
 AC_SUBST(CHARDIR)
 
-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])
@@ -176,7 +175,7 @@
 AC_MSG_RESULT([yes])
 fi
 
-AC_ARG_ENABLE([memdebug],[AC_HELP_STRING([--enable-memdebug], [enable built-in memory checking @<:@default=no@:>@])],[],[])
+AC_ARG_ENABLE([memdebug],[AS_HELP_STRING([--enable-memdebug],[enable built-in memory checking @<:@default=no@:>@])],[],[])
 AC_MSG_CHECKING([if memory checking is enabled])
 if test "x$enable_memdebug" = "xno" ; then
 AC_MSG_RESULT([no])