File: configure.in

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dnl ----------------------------------------------------------
dnl configure.in for ircii, 2.3.  copyright (c) matthew green, 1993,
dnl except those bits attributed otherwise.
dnl thanks to the screen 3.3 configure.in for giving me examples to
dnl work from and steal ;)
dnl
dnl @(#)$Id: configure.in,v 1.103 2014/12/26 15:26:42 jnelson Exp $

AC_REVISION([$Revision: 1.103 $])dnl
AC_INIT([source/irc.c])
AC_CONFIG_HEADER([include/defs.h])

unset GREP_OPTIONS

dnl ----------------------------------------------------------
dnl
dnl grok the version number - from source/irc.c
dnl

VERSION=`sed -n -e 's/";$//' -e '/const char irc_version.. = .EPIC.-/s///p' -e '/const char irc_version/q' < $srcdir/source/irc.c` 
echo this is EPIC5 version $VERSION
echo
AC_SUBST([VERSION])

dnl ----------------------------------------------------------
dnl
dnl initial stuff
dnl

AC_PROG_CC
AC_PROG_CPP
AC_ISC_POSIX
AC_AIX

dnl ----------------------------------------------------------
AC_MSG_CHECKING([for an extra library directory])
AC_ARG_WITH([localdir],
[  --with-localdir=/usr/local        An extra directory to look for stuff.],[
   if test "x$withval" = "x" ; then
      if test -d /usr/local/lib ; then
	withval="/usr/local"
      elif test -d /usr/pkg/lib ; then
	withval="/usr/pkg"
      elif test -d /opt/lib ; then
	withval="/opt"
      fi
   fi

   if test "x$withval" != "x" && \
      test -d "$withval"; then
      with_extra_libdir="yes"
   else
      with_extra_libdir="no"
   fi

   if test "x$with_extra_libdir" = "xyes" ; then
      LIBS="-L$withval/lib $LIBS"
      CFLAGS="-I$withval/include/ $CFLAGS"
      localdir=$withdir
   fi
],[
   if test "x$withval" = "x" ; then
      if test -d /usr/local/lib ; then
	withval="/usr/local"
      elif test -d /usr/pkg/lib ; then
	withval="/usr/pkg"
      elif test -d /opt/lib ; then
	withval="/opt"
      fi
   fi

   if test "x$withval" != "x" && \
      test -d "$withval"; then
      with_extra_libdir="yes"
   else
      with_extra_libdir="no"
   fi

   if test "x$with_extra_libdir" = "xyes" ; then
      LIBS="-L$withval/lib $LIBS"
      CFLAGS="-I$withval/include/ $CFLAGS"
      localdir=$withdir
   fi
])
AC_MSG_RESULT([$with_extra_libdir, $withval])

dnl ----------------------------------------------------------
dnl ----------------------------------------------------------
dnl
dnl System specific checks
dnl
dnl ----------------------------------------------------------
dnl ----------------------------------------------------------

dnl
dnl Checking for solaris cc
dnl
AC_MSG_CHECKING([for solaris cc])
( $CC -V 2>&1 | grep 'Sun C' > /dev/null ) && \
	sun_compiler="yes" \
	CFLAGS="$CFLAGS -erroff=E_ARG_INCOMPATIBLE_WITH_ARG,E_ASSIGNMENT_TYPE_MISMATCH"
AC_MSG_RESULT([ok])

dnl
dnl checking for svr4's /usr/ccs/lib
dnl
if test -d /usr/ccs/lib; then
	LIBS="-L/usr/ccs/lib $LIBS"
fi

dnl
dnl Checking for HP-UX's porting kit (from twincest)
dnl
dnl <twincest> hop: please change configure to look for setenv in -lcext
dnl <twincest> and with -I/usr/include/ep
dnl <twincest> (that's where setenv from the hp-ux porting kit lives)
dnl <twincest> in fact, perhaps just check for /usr/include/ep and -lcext, 
dnl +and use them unconditionally if present
dnl
dnl -- Do not use /usr/include/ep/.
dnl
dnl if test -d /usr/include/ep; then
dnl	CFLAGS="-I/usr/include/ep $CFLAGS"
dnl fi
AC_CHECK_LIB([cext], [setenv], [LIBS="$LIBS -lcext"],)

dnl
dnl Checking for Macintosh OS X (Written by Zach)
dnl Please note -- MAC OS X perl support only works with macports!
dnl
AC_MSG_CHECKING([for Macintosh OS X])
( $CC --version 2>&1 | grep 'apple-darwin' > /dev/null ) && \
       apple_compiler="yes" \
       perl_arch_flags="$(perl -MExtUtils::Embed -e 'ccopts;print "\n"; ldopts' | grep -o -- '-arch [-_0-9a-zA-Z]*' | sort -u)" \
       CFLAGS="$CFLAGS $perl_arch_flags"
AC_MSG_RESULT([ok])



dnl ----------------------------------------------------------
AC_MSG_CHECKING(if you want threaded stdout)
AC_ARG_WITH(threaded-stdout,
[  --with-threaded-stdout[=yes]      Threaded stdout so the client doesn't block when gnu screen malfunctions.],[
	if test "x$withval" = "x" ; then
		with_threaded_stdout="no"
	elif test "x$withval" = "xy" ; then
		with_threaded_stdout="yes"
		if [ "x$sun_compiler" = "xyes" ] ; then
			CFLAGS="CFLAGS -mt"
		else
			CFLAGS="$CFLAGS -pthread"
		fi
	elif test "x$withval" = "xY" ; then
		with_threaded_stdout="yes"
		if [ "x$sun_compiler" = "xyes" ] ; then
			CFLAGS="CFLAGS -mt"
		else
			CFLAGS="$CFLAGS -pthread"
		fi
	elif test "x$withval" = "xyes" ; then
		with_threaded_stdout="yes"
		if [ "x$sun_compiler" = "xyes" ] ; then
			CFLAGS="CFLAGS -mt"
		else
			CFLAGS="$CFLAGS -pthread"
		fi
	elif test "x$withval" = "xYES" ; then
		with_threaded_stdout="yes"
		if [ "x$sun_compiler" = "xyes" ] ; then
			CFLAGS="CFLAGS -mt"
		else
			CFLAGS="$CFLAGS -pthread"
		fi
	else
		with_threaded_stdout="no"
	fi
],[
	with_threaded_stdout="no"
])
AC_MSG_RESULT($with_threaded_stdout)
if test "x$with_threaded_stdout" = "xyes" ; then
	AC_DEFINE(WITH_THREADED_STDOUT)
	threading=1
fi


dnl ----------------------------------------------------------
dnl   Where does this belong?
AC_MSG_CHECKING(which multiplexer function to use)
AC_ARG_WITH(multiplex,
[  --with-multiplex[=TYPE]           Multiplexer type (select,poll,freebsd-kqueue,pthread,solaris-ports)],[
	if test "x$withval" = "x"; then
		with_multiplex="select"
	elif test "x$withval" = "xselect"; then
		with_multiplex="select"
	elif test "x$withval" = "xpoll"; then
		with_multiplex="poll"
	elif test "x$withval" = "xfreebsd-kqueue"; then
		with_multiplex="kqueue"
	elif test "x$withval" = "xsolaris-ports"; then
		with_multiplex="port_create"
	elif test "x$withval" = "xpthread"; then
		with_multiplex="pthread_create"
		if [ "x$sun_compiler" = "xyes" ] ; then
			CFLAGS="CFLAGS -mt"
		else
			CFLAGS="$CFLAGS -pthread"
		fi
	else
		with_multiplex="select"
	fi
],[
	with_multiplex="select"
])
AC_MSG_RESULT($with_multiplex)
AC_CHECK_FUNC($with_multiplex, [
	if test "x$with_multiplex" = "xselect" ; then
		AC_DEFINE(USE_SELECT)
		threading=0
	elif test "x$with_multiplex" = "xpoll" ; then
		AC_DEFINE(USE_POLL)
		threading=0
	elif test "x$with_multiplex" = "xkqueue" ; then
		AC_DEFINE(USE_FREEBSD_KQUEUE)
		threading=0
	elif test "x$with_multiplex" = "xport_create" ; then
		AC_DEFINE(USE_SOLARIS_PORTS)
		threading=0
	elif test "x$with_multiplex" = "xpthread_create" ; then
		AC_DEFINE(USE_PTHREAD)
		threading=1
	fi
],[
	AC_DEFINE(USE_SELECT)
	threading=0
])


dnl ----------------------------------------------------------
dnl
dnl Check for libraries before we check for functions!
dnl

if test -z "$libsocket"; then
	AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket",)
fi

dnl Check to see if libarchive actually works
dnl XXX I don't understand why this is even necessary.
AC_ARG_WITH([libarchive], [  --without-libarchive              Disable libarchive support.],
	[], [with_libarchive=maybe])
if test "x$with_libarchive" != "xno" ; then
	have_libarchive=""
	orig_LIBS="$LIBS"
	AC_CHECK_LIB(archive, archive_read_new, [LIBS="$LIBS -larchive"])
	AC_MSG_CHECKING(whether libarchive works the way I expect)
	AC_TRY_LINK([#include <archive.h>], [
		struct archive *x; 
		const char *s = "bogus.zip";
		x = archive_read_new();
		archive_read_support_format_all(x);
		archive_read_open_file(x, s, 10240);
	], have_libarchive="yes")
	if test "x$have_libarchive" = "x"; then
		LIBS="$orig_LIBS"
		AC_MSG_RESULT(no)
		if test "x$with_libarchive" = "xyes" ; then
			AC_MSG_ERROR([--with-libarchive was specified but libarchive could not be found. Please do not specify --with-libarchive or install libarchive.])
                fi
	else
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_LIBARCHIVE)
	fi
fi

dnl -----
AC_ARG_WITH(ssl,
[  --with-ssl[=PATH]                 Help me find your SSL installation (DIR is OpenSSL's install dir).],[
	if test -z "$withval"; then
		with_ssl="yes"
	fi
])

AC_MSG_CHECKING(whether to include SSL support)
if test "x$with_ssl" = "xno"; then
	AC_MSG_RESULT(no)
	AC_MSG_ERROR([You cannot explicitly turn off OpenSSL support any more.  This error is intentional.  Please remove --without-ssl and try again.])
else
	saved_LIBS="$LIBS"
	saved_CFLAGS="$CFLAGS"

	# First, let's see if the user overrode the openssl location
	ssldir="$with_ssl"
	if test "x$ssldir" != "x" -a "x$ssldir" != "xyes"; then
	    if test -f "$ssldir/include/openssl/ssl.h" && 
			test -f "$ssldir/lib/libssl.a"; then
		LIBS="$saved_LIBS -L$ssldir/lib -lssl -lcrypto"
	        CFLAGS="$saved_CFLAGS -I$ssldir/include"
		AC_TRY_LINK([#include <openssl/ssl.h>],
			    [SSL_accept(0);], [have_ssl="yes"])
	    fi

	    if test "x$have_ssl" != "xyes"; then
		AC_MSG_RESULT([no])	
		AC_MSG_ERROR([I could not find the OpenSSL installed at $with_ssl you asked me to use with --with-ssl=$with_ssl.  Please ensure that directory contains the files 'include/openssl/ssl.h' and 'lib/libssl.a'.  If you are unsure, remove --with-ssl and just let me auto-detect it.])
	    fi
	fi

	# Second, let's see if it just works by default
	LIBS="$saved_LIBS -lssl -lcrypto"
	CFLAGS="$saved_CFLAGS"
	AC_TRY_LINK([#include <openssl/ssl.h>],
		[SSL_accept(0);], [have_ssl="yes"])

	# Otherwise, go hunting for it.
	if test "x$have_ssl" = "x" ; then
	    for ssldir in $localdir/ssl $localdir/openssl; do
		if test "x$have_ssl" != "x"; then
			break;
		fi

		if test "x$ssldir" = "x"; then
			continue;
		fi

		if test -f "$ssldir/include/openssl/ssl.h" &&
			test -f "$ssldir/lib/libssl.a"; then
		    CFLAGS="$saved_CFLAGS -I$ssldir/include"
		    LIBS="$saved_LIBS -L$ssldir/lib -lssl -lcrypto"
		    AC_TRY_LINK([#include <openssl/ssl.h>],
				[SSL_accept(0);], [have_ssl="yes"])
		fi
	    done
	fi

	# If we found it somewhere, great!  Otherwise, revert.
	if test ! -n "$have_ssl"; then
		LIBS="$saved_LIBS"
		CFLAGS="$saved_CFLAGS"
		AC_MSG_RESULT([no])
		if test "x$with_ssl" != "x"; then
			AC_MSG_ERROR([You requested SSL support, but OpenSSL was not found. Please supply a pathname to OpenSSL])
		fi
		AC_MSG_ERROR([I was unable to find OpenSSL.  If it is not installed, please install it.  If it is installed, please help me find it using --with-ssl=/usr/local or similar.])
	else
	    if test "x$threading" = "x1" ; then
		AC_MSG_RESULT([yes])
		AC_MSG_CHECKING([whether your SSL is threading compatable])
		AC_TRY_RUN([
#define OPENSSL_THREAD_DEFINES
#include <openssl/opensslconf.h>
main ()
{
#if defined(THREADS)
        exit(0);
#else
        exit(1);
#endif
}
],
		AC_MSG_RESULT([yes])
		AC_DEFINE([HAVE_SSL]),
		AC_MSG_RESULT([no. Your system can not do SSL with pthreads]),:)
	    else
		AC_DEFINE([HAVE_SSL])
		AC_MSG_RESULT([yes])
	    fi
	fi
fi


dnl this is for isc.  need the nsl_s library as well.
if test -z "$libinet"; then
	AC_CHECK_LIB(inet, socket, libnsl=1; LIBS="$LIBS -linet -lnsl_s",)
fi

if test -z "$libnsl"; then
	AC_CHECK_LIB(nsl, gethostname, LIBS="$LIBS -lnsl",)
fi

AC_CHECK_LIB(sun, getpwnam, LIBS="$LIBS -lsun",)
AC_CHECK_LIB(dgc, inet_addr, LIBS="$LIBS -ldgc",)
AC_CHECK_LIB(resolv, gethostbyname, LIBS="$LIBS -lresolv",)
AC_CHECK_LIB(crypt, crypt, LIBS="$LIBS -lcrypt",)
AC_CHECK_LIB(m, pow, LIBS="$LIBS -lm",)
AC_CHECK_LIB(rt, clock_gettime, LIBS="$LIBS -lrt",)

termcap=0;
warn_again=0;
AC_MSG_CHECKING(whether you want to use termcap instead of terminfo/ncurses)
AC_ARG_WITH(termcap,
[  --with-termcap                    Force use of termcap even if terminfo/ncurses is available ],
[   AC_MSG_RESULT(yes)
    AC_CHECK_LIB(termcap, tgetent, termcap=1;LIBS="-ltermcap $LIBS",
      AC_CHECK_LIB(termlib, tgetent, termcap=1;LIBS="-ltermlib $LIBS",
        AC_CHECK_LIB(curses,  tgetent, termcap=1;LIBS="-lcurses $LIBS",
          AC_MSG_WARN(I cant find tgetent.  Youll have to help me.))))],
[   AC_MSG_RESULT(no)
    AC_CHECK_LIB(ncurses, setupterm, LIBS="-lncurses $LIBS",
      AC_CHECK_LIB(tinfo,   setupterm, LIBS="-ltinfo $LIBS",
	  AC_CHECK_LIB(curses, setupterm, LIBS="-lcurses $LIBS",
	    AC_CHECK_LIB(curses, tgetent, termcap=1;LIBS="-lcurses $LIBS",
              AC_CHECK_LIB(termlib, tgetent, termcap=1;LIBS="-ltermlib $LIBS",
                AC_CHECK_LIB(termcap, tgetent, termcap=1;LIBS="-ltermcap $LIBS",
	          AC_MSG_WARN(I cant find tgetent.  Youll have to help me.)
		  warn_again=1))))))])

dnl ----------------------------------------------------------
dnl
dnl Checking for headers, functions, and a type declarations
dnl

AC_CHECK_HEADERS(fcntl.h ieeefp.h inttypes.h math.h ndbm.h netdb.h regex.h stddef.h stdint.h sys/fcntl.h sys/file.h sys/filio.h sys/select.h sys/sysctl.h sys/syslimits.h sys/time.h sys/un.h sys/param.h termios.h sys/termios.h xlocale.h,)
if test $termcap -eq 0 ; then
	AC_CHECK_HEADERS(term.h,)
else
	AC_CHECK_HEADERS(termcap.h,)
fi

AC_CHECK_FUNC(arc4random, AC_DEFINE(HAVE_ARC4RANDOM),)
AC_CHECK_FUNC(clock_gettime, AC_DEFINE(HAVE_CLOCK_GETTIME),)
AC_CHECK_FUNC(fchdir, AC_DEFINE(HAVE_FCHDIR),)
AC_CHECK_FUNC(fpathconf, AC_DEFINE(HAVE_FPATHCONF),)
AC_CHECK_FUNC(getlogin, AC_DEFINE(HAVE_GETLOGIN),)
AC_CHECK_FUNC(getaddrinfo, AC_DEFINE(HAVE_GETADDRINFO),)
AC_CHECK_FUNC(getnameinfo, AC_DEFINE(HAVE_GETNAMEINFO),)
AC_CHECK_FUNC(getpass, AC_DEFINE(HAVE_GETPASS),)
AC_CHECK_FUNC(getpgid, AC_DEFINE(HAVE_GETPGID),)
AC_CHECK_FUNC(getpgrp, AC_FUNC_GETPGRP,)
AC_CHECK_FUNC(getservbyport, AC_DEFINE(HAVE_GETSERVBYPORT),)
AC_CHECK_FUNC(gettimeofday, AC_DEFINE(HAVE_GETTIMEOFDAY),)
AC_CHECK_FUNC(killpg, AC_DEFINE(HAVE_KILLPG),)
AC_CHECK_FUNC(memmove, AC_DEFINE(HAVE_MEMMOVE),)
AC_CHECK_FUNC(nanosleep, AC_DEFINE(HAVE_NANOSLEEP),)
AC_CHECK_FUNC(uname, AC_DEFINE(HAVE_UNAME),)
AC_CHECK_FUNC(realpath, AC_DEFINE(HAVE_REALPATH),)
AC_CHECK_FUNC(setenv, AC_DEFINE(HAVE_SETENV),)
AC_CHECK_FUNC(setsid, AC_DEFINE(HAVE_SETSID),) 
AC_CHECK_FUNC(tcsetpgrp, AC_DEFINE(HAVE_TCSETPGRP),)
if test $termcap -eq 0 ; then
	AC_CHECK_FUNC(setupterm, AC_DEFINE(HAVE_TERMINFO),)
fi
AC_CHECK_FUNC(snprintf, AC_DEFINE(HAVE_SNPRINTF),)
AC_CHECK_FUNC(strerror, AC_DEFINE(HAVE_STRERROR),)
AC_CHECK_FUNC(strlcat, AC_DEFINE(HAVE_STRLCAT),)
AC_CHECK_FUNC(strlcpy, AC_DEFINE(HAVE_STRLCPY),)
AC_CHECK_FUNC(strptime, AC_DEFINE(HAVE_STRPTIME),)
AC_CHECK_FUNC(strtoul, AC_DEFINE(HAVE_STRTOUL),)
AC_CHECK_FUNC(sysconf, AC_DEFINE(HAVE_SYSCONF),)
AC_CHECK_FUNC(sysctlbyname, AC_DEFINE(HAVE_SYSCTLBYNAME),)
AC_CHECK_FUNC(unsetenv, AC_DEFINE(HAVE_UNSETENV),)
AC_CHECK_FUNC(vsnprintf, AC_DEFINE(HAVE_VSNPRINTF),)
AC_CHECK_FUNC(finite, AC_DEFINE(HAVE_FINITE),)
AC_MSG_CHECKING(for isfinite macro in math.h)
AC_EGREP_HEADER(isfinite, math.h, 
	AC_DEFINE(HAVE_ISFINITE) AC_MSG_RESULT(yes),
	AC_MSG_RESULT(no))
AC_CHECK_FUNC(tparm, AC_DEFINE(HAVE_TPARM),)
AC_CHECK_FUNC(newlocale, AC_DEFINE(HAVE_NEWLOCALE),)

dnl -- Oh why does this have to be so painful? --
AC_MSG_CHECKING(whether term.h works by itself)
AC_TRY_RUN([
#include <term.h>

main ()
{
       exit(0);
}
],
  AC_MSG_RESULT(yes),
  AC_MSG_RESULT(no)
  AC_MSG_CHECKING(whether term.h requires termio.h and curses.h)
  AC_TRY_RUN([
#include <termio.h>
#include <curses.h>
#include <term.h>

main ()
{
       exit(0);
}
  ],
  AC_MSG_RESULT(yes)
  AC_DEFINE(TERM_H_REQUIRES_CURSES_H),
  AC_MSG_RESULT(no, ugh)
  AC_DEFINE(DONT_USE_TERM_H), :), :)


AC_HEADER_STDC
AC_HEADER_TIME
AC_HEADER_DIRENT
AC_TYPE_SIGNAL
AC_TYPE_MODE_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_FUNC_ALLOCA

dnl ----------------------------------------------------------
dnl Check to see if we can find intptr_t.
dnl
have_intptr_t=""
AC_MSG_CHECKING(for intptr_t in inttypes.h or stdint.h)
AC_TRY_LINK([#include <inttypes.h>],
	    [intptr_t x; x = 0;], AC_DEFINE(HAVE_INTPTR_T) 
				    have_intptr_t="yes")
AC_TRY_LINK([#include <stdint.h>],
	    [intptr_t x; x = 0;], AC_DEFINE(HAVE_INTPTR_T) 
				    have_intptr_t="yes")
if test "x$have_intptr_t" = "x"; then
	AC_MSG_RESULT(no)
else
	AC_MSG_RESULT(yes)
fi

dnl ----------------------------------------------------------
dnl Check to see if we have socklen_t
dnl
AC_MSG_CHECKING(for socklen_t)
AC_EGREP_HEADER(socklen_t, sys/socket.h,
  AC_MSG_RESULT(yes)
  AC_DEFINE(HAVE_SOCKLEN_T),
  AC_MSG_RESULT(no))

dnl ----------------------------------------------------------
dnl
dnl Check to see if we have to include <sys/select.h>
dnl 
dnl
AC_MSG_CHECKING(whether sys/types.h defines fd_set)
AC_EGREP_HEADER(fd_set, sys/types.h,
  AC_MSG_RESULT(yes),
  AC_MSG_RESULT(no)
  AC_MSG_CHECKING(whether sys/select.h defines fd_set)
  AC_EGREP_HEADER(fd_set, sys/select.h,
    AC_MSG_RESULT(yes)
    AC_DEFINE(NEED_SYS_SELECT_H),
    AC_MSG_RESULT(no. ugh.))) 

dnl ----------------------------------------------------------
dnl
dnl check for struct linger
dnl

AC_MSG_CHECKING(for struct linger)
AC_EGREP_HEADER([struct( |	)*linger], sys/socket.h, 
  AC_MSG_RESULT(yes), 
  AC_DEFINE(NO_STRUCT_LINGER) 
  AC_MSG_RESULT(no. ugh.))

dnl ---------------------------------------------------------
dnl
dnl Check for a useful SO_SNDLOWAT.
dnl Some systems (eg, linux) can be bothered to #define SO_SNDLOWAT
dnl but can't be bothered to implement it, instead returning an error.
dnl How completely bogus.  Don't #define it if you don't support it!
dnl
AC_MSG_CHECKING(for useful SO_SNDLOWAT)
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/socket.h>
main ()
{
#ifndef SO_SNDLOWAT
        exit(1);
#else
        int d = socket(AF_INET, SOCK_STREAM, 0);
        int size = 256;
        if (setsockopt(d, SOL_SOCKET, SO_SNDLOWAT, &size, sizeof(size)) < 0)
                exit(1);
        exit (0);
#endif
}
],
  AC_MSG_RESULT(yes, your SO_SNDLOWAT is useful)
  AC_DEFINE(HAVE_SO_SNDLOWAT),
  AC_MSG_RESULT(no, your SO_SNDLOWAT is broken and/or worthless), :)

dnl ----------------------------------------------------------
dnl
dnl Check for a realpath() that works.
dnl
AC_MSG_CHECKING(for useful realpath)
AC_TRY_RUN([
#include <sys/param.h>
#include <stdlib.h>
main ()
{
	char resolved_path[PATH_MAX];

	if (realpath("/etc/filethatdoesnotexist", resolved_path) == 0)
		exit(1);
	exit(0);
}
],
  AC_MSG_RESULT(yes),
  AC_MSG_RESULT(no, your realpath is broken and/or worthless)
  AC_DEFINE(HAVE_BROKEN_REALPATH), :)

dnl ----------------------------------------------------------
dnl
dnl Check for sys_siglist declaration
dnl

AC_MSG_CHECKING(for sys_siglist declaration)
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/signal.h>
#include <signal.h>
#include <unistd.h>
main()
{
	char *s = sys_siglist[0];
	exit(0);
}
],
  AC_MSG_RESULT(yes) 
  sys_siglist="1"
  AC_DEFINE(HAVE_SYS_SIGLIST),
  AC_MSG_RESULT(no), :)

dnl ---------------------------------------------------------
dnl Check for NSIG vs sys_nsig vs __sys_nsig
dnl
dnl ......

dnl ----------------------------------------------------------
dnl Check for 'intmax_t'
dnl
have_intmax_t=""
have_strtoimax_t=""
AC_MSG_CHECKING(for intmax_t in inttypes.h or stdint.h)
AC_TRY_LINK([#include <inttypes.h>],
	    [intmax_t x; x = 0;], have_intmax_t="yes")
AC_TRY_LINK([#include <stdint.h>],
	    [intmax_t x; x = 0;], have_intmax_t="yes")
if test "x$have_intmax_t" = "x"; then
	AC_MSG_RESULT(no)
else
	AC_MSG_RESULT(yes)
fi

AC_MSG_CHECKING(for strtoimax in inttypes.h or stdint.h)
AC_TRY_LINK([#include <inttypes.h>],
	    [char *ptr="1";strtoimax(ptr, &ptr, 10)], 
				    have_strtoimax="yes")
AC_TRY_LINK([#include <stdint.h>],
	    [char *ptr="1";strtoimax(ptr, &ptr, 10)], 
				    have_strtoimax="yes")
if test "x$have_strtoimax" = "x"; then
	AC_MSG_RESULT(no)
else
	AC_MSG_RESULT(yes)
fi


AC_MSG_CHECKING(whether I can use intmax_t for intmax_t)
dnl Can we use (intmax_t) for (intmax_t)?
if test "x$have_intmax_t" != "x" ; then
  if test "x$have_strtoimax" != "x" ; then
    AC_DEFINE(HAVE_STRTOIMAX)
    AC_DEFINE(HAVE_INTMAX_NATIVE)
    AC_MSG_RESULT(yes)
  else
    AC_MSG_RESULT(no)
  fi
else
  AC_MSG_RESULT(no)
fi

dnl Can we use (long long) for (intmax_t) ?
AC_CHECK_SIZEOF([long long], 0)
if test "$ac_cv_sizeof_long_long" != 0; then
   AC_DEFINE([HAVE_INTMAX_LONG_LONG])
   AC_CHECK_FUNC([strtoll], AC_DEFINE([HAVE_STRTOLL]), 
			    AC_DEFINE([NEED_STRTOLL]))
fi

dnl Can we use (quad_t) for (intmax_t) ?
AC_CHECK_SIZEOF([quad_t], 0)
if test "$ac_cv_sizeof_quad_t" != 0; then
   AC_CHECK_FUNC([strtoq], AC_DEFINE([HAVE_STRTOQ])
			   AC_DEFINE([HAVE_INTMAX_QUADT]),)
fi

dnl Can we use (long) for (intmax_t)?  (Yes. always, if we must)
AC_DEFINE([HAVE_INTMAX_LONG])

dnl ----------------------------------------------------------
dnl
dnl need this for dcc stuff
dnl

AC_CHECK_SIZEOF([unsigned int], 4)
if test "$ac_cv_sizeof_unsigned_int" = 4; then
	AC_DEFINE([UNSIGNED_INT32])
else
	AC_CHECK_SIZEOF([unsigned long], 4)
	if test "$ac_cv_sizeof_unsigned_long" = 4; then
		AC_DEFINE([UNSIGNED_LONG32])
	else
		AC_DEFINE([UNKNOWN_32INT])
	fi
fi

dnl ----------------------------------------------------------
dnl
dnl It makes a big difference if your system's (struct sockaddr)
dnl structures look like this:
dnl
dnl struct sockaddr {
dnl     u_char     sa_len;
dnl     u_char     sa_family;
dnl     char       sa_data[14];
dnl };
dnl
dnl 	or this
dnl
dnl struct sockaddr {
dnl     u_short    sa_family;
dnl     char       sa_data[14];
dnl };
dnl
dnl so check for that here.
dnl
dnl -----------------------------------------------------------

AC_MSG_CHECKING([to see if your struct sockaddr includes a length field])
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/socket.h>
main()
{
	struct sockaddr sa;
	sa.sa_len = 0;
	exit(0);
}
],
  AC_DEFINE([HAVE_SA_LEN])
  AC_MSG_RESULT([yes]),
  AC_MSG_RESULT([no]), :)

dnl ----------------------------------------------------------
dnl
dnl checks for ipv6-related things
dnl

AC_MSG_CHECKING([whether to support ipv6])
AC_ARG_WITH(ipv6,
[  --without-ipv6                    Refuse to support IPv6],[
	if test "x$withval" = "xno" ; then
		AC_MSG_RESULT([no])
		AC_DEFINE([DO_NOT_USE_IPV6])
	else
		AC_MSG_RESULT([yes])
	fi
],[AC_MSG_RESULT([yes])])

AC_MSG_CHECKING([for struct sockaddr_storage])
AC_EGREP_HEADER([struct( |	)*sockaddr_storage], sys/socket.h, 
  AC_MSG_RESULT(yes) 
  AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE),
  AC_MSG_RESULT(no))

AC_MSG_CHECKING([for struct sockaddr_in6])
AC_EGREP_HEADER([struct( |	)*sockaddr_in6], netinet/in.h,
  AC_MSG_RESULT(yes)
  AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6),
  AC_MSG_RESULT(no))

AC_MSG_CHECKING([for struct addrinfo])
AC_EGREP_HEADER([struct( |	)*addrinfo], netdb.h,
  AC_MSG_RESULT(yes)
  AC_DEFINE(HAVE_STRUCT_ADDRINFO),
  AC_MSG_RESULT(no))

dnl ----------------------------------------------------------
dnl
dnl Some implementations of getaddrinfo (*cough*KAME*cough*) don't 
dnl support the AF_UNIX protocol family.  For these partially incomplete 
dnl implementations, we must add our own support in a wrapper.
dnl

AC_MSG_CHECKING([to see if your getaddrinfo supports AF_UNIX])
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <sys/un.h>
#include <stdlib.h>

main()
{
	struct addrinfo hints;
	struct addrinfo *results;
	int	retval;

	memset(&hints, 0, sizeof(hints));
	hints.ai_flags = 0;
	hints.ai_family = AF_UNIX;
	hints.ai_socktype = SOCK_STREAM;
	hints.ai_protocol = 0;

	retval = getaddrinfo(0, "/tmp/.ircd/6667", &hints, &results);
	if (retval != 0)
		exit(1);
	else
		exit(0);
}
],
  AC_MSG_RESULT([yes]),
  AC_DEFINE(GETADDRINFO_DOES_NOT_DO_AF_UNIX)
  AC_MSG_RESULT([no. ugh]), :)

dnl ----------------------------------------------------------
dnl
dnl Socks4 or Socks5 or neither?
dnl

AC_MSG_CHECKING(whether to support SOCKS)
AC_ARG_WITH(socks,
[  --with-socks[=PATH]               Compile with SOCKS (libsocks without socks.h) firewall traversal support.],
[ case "$withval" in
  no)
	AC_MSG_RESULT(no)
	;;
  *)
	if test "x$withval" != "xyes"; then
		LIBS="$LIBS -L$withval"
	fi

	AC_MSG_RESULT(yes)
	LIBS="$LIBS -lsocks"
	AC_DEFINE(SOCKS)
	AC_DEFINE(connect, Rconnect)
	AC_DEFINE(getsockname, Rgetsockname)
	AC_DEFINE(bind, Rbind)
	AC_DEFINE(accept, Raccept)
	AC_DEFINE(listen, Rlisten)
	AC_DEFINE(select, Rselect)
	;;
  esac ],
  AC_MSG_RESULT(no)
)

AC_MSG_CHECKING(whether to support SOCKS5)
AC_ARG_WITH(socks5,
[  --with-socks5[=PATH]              Compile with SOCKS5 (libsocks with socks.h) firewall traversal support.],
[ case "$withval" in
  no)
	AC_MSG_RESULT(no)
	;;
  *)
	if test "x$withval" != "xyes"; then
		LIBS="$LIBS -L$withval"
		CFLAGS="$CFLAGS -I$withval/../include/"
	fi

	AC_MSG_RESULT(yes)
	LIBS="$LIBS -lsocks"
	AC_DEFINE(SOCKS)
	AC_DEFINE(USE_SOCKS5)
	;;
  esac ],
  AC_MSG_RESULT(no)
)


dnl ----------------------------------------------------------
dnl
dnl Iconv support?
dnl
AC_ARG_WITH(iconv,
[  --with-iconv[=PATH]               Include iconv support (PATH is (eg) /usr/local).],[
	if test -z "$withval"; then
		with_iconv="/usr"
	fi
])

AC_MSG_CHECKING(whether to include iconv support)
if test "x$with_iconv" = "xno"; then
	AC_MSG_RESULT([Iconv support is required; I'm afraid I must insist.])
	AC_MSG_CHECKING([whether to include iconv support])
	with_iconv=yes
fi

	saved_LIBS="$LIBS"
	saved_CFLAGS="$CFLAGS"

	dnl First try to see if it's in libc
	AC_TRY_LINK([#include <iconv.h>],
		[iconv_open(0, 0);], have_iconv="yes")

	dnl If it's not in libc, look in -liconv
	if test "x$have_iconv" = "x"; then
	   LIBS="$saved_LIBS -liconv"
	   CFLAGS="$saved_CFLAGS"
	   AC_TRY_LINK([#include <iconv.h>],
		[iconv_open(0, 0);], have_iconv="yes")
	fi

	dnl whatever.
	if test "x$with_iconv" = "xyes" ; then
		unset with_iconv
	fi

	dnl Otherwise, go hunting for it.
	if test "x$have_iconv" = "x"; then
	    for iconvdir in "$with_iconv" "$prefix" $localdir /usr/local /usr/pkg /opt /usr/opt; do
		if test "x$have_iconv" != "x"; then
			break
		fi

		if test "x$iconvdir" = "x"; then
			continue
		fi

dnl		if test -f "$iconvdir/include/iconv.h" &&
dnl			test -f "$iconvdir/lib/libiconv.a"; then
		if test -f "$iconvdir/include/iconv.h" ; then
		    CFLAGS="$saved_CFLAGS -I$iconvdir/include"
		    LIBS="$saved_LIBS -L$iconvdir/lib -liconv"
		    AC_TRY_LINK([#include <iconv.h>],
				[iconv_open(0, 0);], have_iconv="yes")
		fi

		if test "x$with_iconv" != "x"; then
			break
		fi
	    done
	fi

# If we found it somewhere, great!  Otherwise, revert.
if test "x$have_iconv" = "x"; then
	LIBS="$saved_LIBS"
	CFLAGS="$saved_CFLAGS"
	AC_MSG_RESULT(looked but did not find it)
	if test "x$with_iconv" != "x" ; then
		AC_MSG_ERROR([You specified --with-iconv=$with_iconv but that directory did not contain files include/iconv.h and lib/iconv.a.  Either specify a different directory or let me auto-detect it for you])
	else
		AC_MSG_ERROR([Iconv support is required.  I could not find your system's iconv support.  If you have iconv installed, please re-run configure with the --with-iconv=/path/to/dir option where include/iconv.h and lib/iconv.a exist.])
	fi
else
	AC_MSG_RESULT(yes)
	AC_DEFINE(HAVE_ICONV)
fi

dnl #sigh#
dnl AC_CHECK_FUNC(iconv_open, AC_DEFINE(HAVE_ICONV),)


dnl ----------------------------------------------------------
dnl
dnl Job Control / Wserv support?
dnl
AC_MSG_CHECKING(whether you have posix-like job control)
if test "x$ac_cv_func_tcsetpgrp" = "xyes" -a "x$ac_cv_func_setsid" = "xyes"; then
	AC_MSG_RESULT(yes)
else
	AC_MSG_RESULT(no)
	AC_DEFINE(NO_JOB_CONTROL)
	no_job_control=1
fi

AC_MSG_CHECKING(whether to include wserv support)
include_wserv="yes"
AC_ARG_WITH(wserv,
[  --without-wserv                   Refuse to support wserv (for multiple screens)],[
	if test -z "$withval"; then
		include_wserv="yes"
	else
		include_wserv="$withval"
	fi
])
if test "x$no_job_control" = "x1" ; then
	include_wserv="no"
fi
AC_MSG_RESULT($include_wserv)
if test "x$include_wserv" = "xyes" ; then
	WSERV_BIN="wserv4"
	WSERV_INSTALL="installwserv4"
fi

dnl ----------------------------------------------------------
dnl
dnl Valgrind assistance support?
dnl
AC_MSG_CHECKING(whether to include Valgrind Memcheck support)
AC_ARG_WITH(valgrind,
[  --with-valgrind                   Include support for Valgrind Memcheck ],
[],
[with_valgrind=no])
if test "x$with_valgrind" != "xno"; then
	AC_MSG_RESULT(yes)
	AC_CHECK_HEADERS([valgrind/memcheck.h])
else
	AC_MSG_RESULT(no)
fi


dnl ----------------------------------------------------------
dnl
dnl Perl support?
dnl
AC_ARG_WITH([perl], 
[  --with-perl=[PATH_TO_PERL_EXE]    Compile with perl support.],
	[], [with_perl=maybe])
if test "x$with_perl" = "xno" ; then
	AC_MSG_CHECKING(whether to support Perl)
	AC_MSG_RESULT(no)
else
	with_perl_errormsg="You specified --with-perl=$with_perl but I could not find a working perl. Please run ./configure with --without-perl or specify a path to a working perl executable."
	if test "x$with_perl" = "xyes" -o "x$with_perl" = "xmaybe" ; then
		perlexe=perl
	else
		perlexe="$with_perl"
	fi
	dnl Allow a full path to be specified in --with-perl
	if test -x "$perlexe" ; then
		PERLPROG=yes
	else
		AC_CHECK_PROG(PERLPROG, $perlexe, "yes", "no")
	fi
	AC_MSG_CHECKING([whether to support Perl])
	if test $PERLPROG != "yes" ; then
		if test "x$with_perl" != "xmaybe" ; then
			AC_MSG_ERROR([$with_perl_errormsg])
		fi
		AC_MSG_RESULT(no)
	else
		AC_MSG_RESULT(yes)
		PERLCFLAGS=`$perlexe -MExtUtils::Embed -e ccopts`
		PERLLIBS=`$perlexe -MExtUtils::Embed -e ldopts`

		AC_MSG_CHECKING(whether embedded perl works the way I expect)
		have_embedded_perl="no"
		old_CFLAGS="$CFLAGS"
		old_LIBS="$LIBS"
		CFLAGS="$CFLAGS $PERLCFLAGS"
		LIBS="$LIBS $PERLLIBS"
		AC_TRY_RUN([
#include <EXTERN.h>
#include <perl.h>
#include <XSUB.h>
int dummy_retval = -1;

/* I "borrowed" this from the perlembed(1) man page */
PerlInterpreter *my_perl;
int startup_perl(int argc, char **argv, char **env)
{
	char *embedding[] = {"", "-e", "0" };

	my_perl = perl_alloc();
	perl_construct(my_perl);
	PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
	perl_parse(my_perl, NULL, 3, embedding, NULL);
	if (SvTRUE(ERRSV))
	   (void)SvPV_nolen(ERRSV);
	perl_run(my_perl);
	if (SvTRUE(ERRSV))
	   (void)SvPV_nolen(ERRSV);
	perl_destruct(my_perl);
	perl_free(my_perl);
	PERL_SYS_TERM();
	dummy_retval = 0;
	return 0;
}
int main (int argc, char **argv, char **environ)
{
	startup_perl(argc, argv, environ);
	exit(dummy_retval);
}
], 
have_embedded_perl="yes",
have_embedded_perl="no",:)

		CFLAGS="$old_CFLAGS"
		LIBS="$old_LIBS"
		if test $have_embedded_perl = "yes" ; then
			AC_MSG_RESULT(yes)
			AC_DEFINE(HAVE_PERL)
			AC_DEFINE(PERLCFLAGS)
			AC_DEFINE(PERLLIBS)
			PERLDOTOH="perl.o"
		else
			if test "x$with_perl" != "xmaybe"; then
				AC_MSG_ERROR([$with_perl_errormsg])
			fi
			PERLCFLAGS=""
			PERLLIBS=""
			AC_MSG_RESULT(no, sorry)
			PERLCFLAGS=""
			PERLLIBS=""
		fi
	fi
fi

dnl ----------------------------------------------------------
dnl
dnl Tcl support?
dnl
AC_ARG_WITH([tcl], 
[  --with-tcl[=PATH_TO_tclConfig.sh] Compile with tcl support.],
	[], [with_tcl=maybe])

AC_MSG_CHECKING(whether to support TCL)
if test "x$with_tcl" = "xno"; then
	AC_MSG_RESULT(no)
else
	with_tcl_errormsg="You specified --with-tcl=$with_tcl but I could not find TCL. Please specify --with-tcl=/path/to/tclConfig.sh or remove --with-tcl from ./configure's commandline."
	if test "x$with_tcl" = "xmaybe" -o "x$with_tcl" = "xyes"; then
		for i in /usr/lib /usr/local/lib /usr/local/lib/tcl8.4 ; do
			if test -r "$i"/tclConfig.sh ; then
				tclconfig="$i"/tclConfig.sh
				break;
			fi
		done
	else
		tclconfig="$with_tcl"
	fi
	if test ! -r "$tclconfig" ; then
		dnl Avoid being automagic unless if the user wants us to be.
		if test "x$with_tcl" != "xmaybe" ; then
			AC_MSG_ERROR([$with_tcl_errormsg])
		fi
		AC_MSG_RESULT(no)
	else
		AC_MSG_RESULT(yes)
		TCLCFLAGS=`(. "$tclconfig" && echo $TCL_INCLUDE_SPEC)`
		TCLLIBS=`(. "$tclconfig" && echo $TCL_LIB_SPEC $TCL_LIBS)`
		TCLDOTOH="tcl.o"

		AC_MSG_CHECKING(whether embedded tcl works the way I expect)
		have_embedded_tcl="no"
		old_CFLAGS="$CFLAGS"
		old_LIBS="$LIBS"
		CFLAGS="$CFLAGS $TCLCFLAGS"
		LIBS="$LIBS $TCLLIBS"
		AC_TRY_LINK([
#include <tcl.h>
	   Tcl_Interp *my_tcl;
	   int Tcl_echoCmd (ClientData clientData, Tcl_Interp *interp, int objc, const char **objv)
	   {
		return TCL_OK;
	   }
], [
	my_tcl = Tcl_CreateInterp();
	Tcl_Init(my_tcl);
	Tcl_CreateCommand(my_tcl, "echo", Tcl_echoCmd,
		(ClientData)NULL, (void (*)()) NULL);
	Tcl_DeleteInterp(my_tcl);
], have_embedded_tcl="yes")

		CFLAGS="$old_CFLAGS"
		LIBS="$old_LIBS"
		if test $have_embedded_tcl = "yes" ; then
		    AC_MSG_RESULT(yes)
		    AC_DEFINE(HAVE_TCL)
		    AC_DEFINE(TCLCFLAGS)
		    AC_DEFINE(TCLLIBS)
		else
			if test "$with_tcl" != "xmaybe" ; then
				AC_MSG_ERROR([$with_tcl_errormsg])
			fi
			AC_MSG_RESULT(no, sorry)
		fi
	fi
fi

dnl ----------------------------------------------------------
dnl
dnl Ruby support?
dnl
AC_ARG_WITH([ruby], 
[  --with-ruby[=PATH_TO_RUBY_EXE]    Compile with ruby support.],
       [], [with_ruby=maybe])

with_ruby_errormsg="--with-ruby was specified but I could not locate ruby. Please try specifying --with-ruby=/path/to/ruby or --without-ruby."
AC_MSG_CHECKING([whether to support Ruby])
if test "x$with_ruby" = "xno" ; then
	AC_MSG_CHECKING(whether to support Ruby)
	AC_MSG_RESULT(no)
else
	AC_MSG_RESULT(yes)
	if test "x$with_ruby" = "xyes" -o "x$with_ruby" = "xmaybe" ; then
		rubyexe=ruby
	else
		rubyexe="$with_ruby"
	fi
	dnl Support --with-ruby being passed a full path instead of just an executable name.
	if test -x "$rubyexe" ; then
		RUBYPROG=yes
	else
		AC_CHECK_PROG([RUBYPROG], [$rubyexe], [yes], [no])
	fi
	if test "x$RUBYPROG" = xno ; then
		if test "x$with_ruby" != "xmaybe" ; then
			AC_MSG_ERROR([$with_ruby_errormsg])
		fi
	else
	    dnl ---- 
	    dnl Look first for Ruby 1.9
	    incdir=`$rubyexe -rrbconfig -e 'puts RbConfig::CONFIG[["rubyhdrdir"]]'`
	    dnl -- Ruby 1.8
	    if test "x$incdir" = "xnil" ; then
	       incdir=`$rubyexe -rrbconfig -e 'puts RbConfig::CONFIG[["archdir"]]'`
	       RUBYCFLAGS="-I$incdir"
	    dnl -- Ruby 1.9 and 2.0
	    else
	       arch=`$rubyexe -rrbconfig -e 'puts RbConfig::CONFIG[["arch"]]'`
	       RUBYCFLAGS="-I$incdir -I$incdir/$arch/"
	    fi

	    rubylibs=`$rubyexe -rrbconfig -e 'puts RbConfig::CONFIG[["LIBRUBYARG"]]'`
	    extralibs=`$rubyexe -rrbconfig -e 'puts RbConfig::CONFIG[["LIBS"]]'`
	    RUBYLIBS="$rubylibs $extralibs"
	    RUBYDOTOH="ruby.o"

	    AC_MSG_CHECKING(whether embedded ruby works the way I expect)
	    have_embedded_ruby="no"
	    old_CFLAGS="$CFLAGS"
	    old_LIBS="$LIBS"
	    CFLAGS="$CFLAGS $RUBYCFLAGS"
	    LIBS="$LIBS $RUBYLIBS"
	    AC_TRY_LINK([
#include <ruby.h>
    VALUE epic_echo (VALUE module, VALUE string)
    {
	VALUE x;
	char *my_string;
	x = rb_obj_as_string(string);
	my_string = StringValuePtr(x);
	return Qnil;
    }
], [
	VALUE rubyclass;

	ruby_init();
	ruby_init_loadpath();
	rubyclass = rb_define_class("EPIC", rb_cObject);
	rb_define_singleton_method(rubyclass, "echo", epic_echo, 1);
	rb_gc_register_address(&rubyclass);
], have_embedded_ruby="yes")

	    if ! test $have_embedded_ruby = "yes" ; then
		AC_MSG_RESULT(no)
		AC_MSG_CHECKING(whether ruby requires -pthread to link)
		RUBYCFLAGS="$RUBYCFLAGS -pthread"
		RUBYLIBS="$RUBYLIBS -pthread"
		CFLAGS="$old_CFLAGS $RUBYCFLAGS"
		LIBS="$old_LIBS $RUBYLIBS"

	        AC_TRY_LINK([
#include <ruby.h>
    VALUE epic_echo (VALUE module, VALUE string)
    {
	VALUE x;
	char *my_string;
	x = rb_obj_as_string(string);
	my_string = STR2CSTR(x);
	return Qnil;
    }
], [
	VALUE rubyclass;

	ruby_init();
	ruby_init_loadpath();
	rubyclass = rb_define_class("EPIC", rb_cObject);
	rb_define_singleton_method(rubyclass, "echo", epic_echo, 1);
	rb_gc_register_address(&rubyclass);
], have_embedded_ruby="yes")

	    fi

	    CFLAGS="$old_CFLAGS"
	    LIBS="$old_LIBS"
	    if test $have_embedded_ruby = "yes" ; then
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_RUBY)
		AC_DEFINE(RUBYCFLAGS)
		AC_DEFINE(RUBYLIBS)
	    else
		if test "x$with_ruby" != "xmaybe" ; then
			AC_MSG_ERROR([$with_ruby_errormsg])
		fi
	        RUBYDOTOH=""
		HAVE_RUBY=""
		RUBYCFLAGS=""
		RUBYLIBS=""
		AC_MSG_RESULT(no, sorry)
	    fi
	fi
fi

dnl ----------------------------------------------------------
dnl ----------------------------------------------------------
dnl
dnl closing stuff
dnl
dnl ----------------------------------------------------------
dnl ----------------------------------------------------------


dnl ----------------------------------------------------------
dnl 
dnl set some last minute sanity defaults
dnl

if test -z "$CFLAGS"; then CFLAGS="-g -O"; fi
if test -z "$LDFLAGS"; then LDFLAGS= ; fi
if test -z "$PERLDOTOH"; then PERLDOTOH= ; fi
if test -z "$TCLDOTOH"; then TCLDOTOH= ; fi
if test -z "$RUBYDOTOH"; then RUBYDOTOH= ; fi
if test -z "$WSERV_BIN"; then WSERV_BIN= ; fi
if test -z "$WSERV_INSTALL"; then WSERV_INSTALL= ; fi
if test -z "$bindir"; then bindir=\${prefix}/bin; fi
if test -z "$libdir"; then libdir=\${prefix}/lib; fi
if test -z "$irclibdir"; then irclibdir=\${libdir}/irc; fi
if test -z "$libexecdir"; then libexecdir=\${prefix}/libexec; fi

epic5=`echo "epic5" | sed -e "$program_transform_name"`
if test "$program_prefix" = "NONE" ; then
	program_prefix=
fi

AC_MSG_CHECKING(whether to support bounds checking gcc)
AC_ARG_WITH(bc,
[  --with-bc[=PATH_TO_GCC]           You have bounds checking gcc and want to use it.],
[   case "$withval" in
   no)
        AC_MSG_RESULT(no);
        ;;
   *)
        if test "x$withval" != "xyes" ; then
                CC="$withval"
        fi

        CFLAGS="$CFLAGS -Wall -fbounds-checking"
        LDFLAGS="$LDFLAGS -static"
        AC_MSG_RESULT(yes)
        ;;
   esac ],
   AC_MSG_RESULT(no)
)

AC_MSG_CHECKING(whether to turn on FreeBSD WARNS-like compiler warnings)
AC_ARG_WITH(warns,
[  --with-warns                      You wish to use FreeBSD WARNS-like compiler warnings.],
[   case "$withval" in
   no)
        AC_MSG_RESULT(no);
        ;;
   *)
        if test "x$withval" != "xyes" ; then
                CFLAGS="$CFLAGS $withval"
        fi

        CFLAGS="$CFLAGS -W -Wall -Wstrict-prototypes -Wmissing-prototypes -Wuninitialized -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wformat-extra-args -Wno-unused -ansi -fno-builtin"
        AC_MSG_RESULT(yes)
        ;;
   esac ],
   AC_MSG_RESULT(no)
)

AC_MSG_CHECKING(whether your compiler supports -Wno-pointer-sign)
old_cflags="$CFLAGS"
CFLAGS="$CFLAGS -Wno-pointer-sign"
AC_TRY_COMPILE(, [exit(0);], 
	AC_MSG_RESULT(yes),
        AC_MSG_RESULT(no)
	CFLAGS="$old_cflags"
)

AC_MSG_CHECKING(whether your compiler supports -fno-strict-aliasing)
old_cflags="$CFLAGS"
CFLAGS="$CFLAGS -fno-strict-aliasing"
AC_TRY_COMPILE(, [exit(0);], 
	AC_MSG_RESULT(yes),
        AC_MSG_RESULT(no)
	CFLAGS="$old_cflags"
)

AC_SUBST(CFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(RUBYDOTOH)
AC_SUBST(RUBYCFLAGS)
AC_SUBST(RUBYLIBS)
AC_SUBST(TCLDOTOH)
AC_SUBST(TCLCFLAGS)
AC_SUBST(TCLLIBS)
AC_SUBST(PERLDOTOH)
AC_SUBST(PERLCFLAGS)
AC_SUBST(PERLLIBS)
AC_SUBST(WSERV_BIN)
AC_SUBST(WSERV_INSTALL)
AC_SUBST(bindir)
AC_SUBST(irclibdir)
AC_SUBST(libexecdir)
AC_SUBST(srcdir)
AC_SUBST(includedir)
AC_SUBST(epic5)
AC_SUBST(program_transform_name)
AC_SUBST(program_prefix)
AC_SUBST(mandir)

AC_OUTPUT(Makefile source/Makefile source/info.c.sh)

dnl ----------------------------------------------------------
dnl
dnl Commencement
dnl

echo
echo "There you go.  Look at include/config.h for any options that "
echo "you might want to change before you 'make'.  Don't forget to "
echo "do a 'make install' before you're done."
echo 

if test "x$warn_again" != "x0" ; then
   echo '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@'
   echo '@@@              IMPORTANT WARNING!                 @@@'
   echo '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@'
   echo ''
   echo 'I was unable to find tgetent() which means the build will fail.'
   echo 'If you are using linux, you _MUST_ install the ncurses-dev'
   echo 'or ncurses-devel package and then "make distclean" and '
   echo 'then run configure again.'
   echo ''
   echo '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@'
   echo '@@@              IMPORTANT WARNING!                 @@@'
   echo '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@'
fi