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unrealircd/autoconf/configure.in
T
Bram Matthys eddb406807 - Removed all old resolver code and switched over to c-ares (+our caching routines).
This should get rid of some annoying untracable (and usually rare) crashbugs in the
  old resolver. Besides that, it makes things look more clean and understandable.
  This should be the fix for the following bugids (all the same issue): #2499, #2551, #2558,
  #2559, #2603, #2642, #2502, #2501, #2618, #2616.
  Feedback and testing is very much welcomed (syzop@unrealircd.com).
2005-10-10 14:32:12 +00:00

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dnl Process this file with autoconf to produce a configure script.
AC_INIT(src/ircd.c)
if test $# = 0; then
echo "You might want to run ./Config or provide some parameters to this script."
echo "./configure --help for information about this script"
exit 0
fi
AC_CONFIG_HEADER(include/setup.h)
AC_PROG_CC
if test "$ac_cv_prog_gcc" = "yes"; then
CFLAGS="$CFLAGS -funsigned-char"
AC_CACHE_CHECK(if gcc has a working -pipe, ac_cv_pipe, [
save_cflags="$CFLAGS"
CFLAGS="$CFLAGS -pipe"
AC_TRY_COMPILE(,, ac_cv_pipe="yes", ac_cv_pipe="no")
CFLAGS="$save_cflags"
])
if test "$ac_cv_pipe" = "yes"; then
CFLAGS="-pipe $CFLAGS"
fi
fi
dnl (the gcc flag detection trick is taken from xemacs/Vin Shelton)
dnl UnrealIRCd might not be strict-aliasing safe at this time
case "`$CC -v --help 2>&1`" in
*-fstrict-aliasing* ) CFLAGS="$CFLAGS -fno-strict-aliasing" ;;
esac
dnl Pointer signedness warnings are really a pain and 99.9% of the time
dnl they are of absolutely no use whatsoever. IMO the person who decided
dnl to enable this without -Wall should be shot on sight.
case "`$CC -v --help 2>&1`" in
*-Wpointer-sign* ) CFLAGS="$CFLAGS -Wno-pointer-sign" ;;
esac
AC_PATH_PROG(RM,rm)
AC_PATH_PROG(CP,cp)
AC_PATH_PROG(TOUCH,touch)
AC_PATH_PROG(OPENSSLPATH,openssl)
AC_PATH_PROG(INSTALL,install)
AC_CHECK_PROG(MAKER, gmake, gmake, make)
AC_PATH_PROG(GMAKE,gmake)
AC_PATH_PROG(GUNZIP, gunzip)
AC_PATH_PROG(PKGCONFIG, pkg-config)
dnl Checks for libraries.
AC_CHECK_LIB(descrypt, crypt, [AC_DEFINE(HAVE_CRYPT) IRCDLIBS="$IRCDLIBS-ldescrypt " MKPASSWDLIBS="-ldescrypt"],
AC_CHECK_LIB(crypt, crypt,[ AC_DEFINE(HAVE_CRYPT) IRCDLIBS="$IRCDLIBS-lcrypt " MKPASSWDLIBS="-lcrypt"]))
AC_CHECK_LIB(socket, socket,IRCDLIBS="$IRCDLIBS-lsocket " SOCKLIB="-lsocket")
AC_CHECK_LIB(nsl, inet_ntoa,IRCDLIBS="$IRCDLIBS-lnsl " INETLIB="-lnsl")
AC_SUBST(IRCDLIBS)
AC_SUBST(MKPASSWDLIBS)
dnl module checking based on Hyb7's module checking code
AC_DEFUN(AC_ENABLE_DYN,
[
AC_CHECK_FUNC(dlopen,, AC_CHECK_LIB(dl, dlopen,IRCDLIBS="$IRCDLIBS -ldl",
[
AC_MSG_WARN(Dynamic linking is not enabled because dlopen was not found)
AC_DEFINE(STATIC_LINKING)
]))
hold_cflags=$CFLAGS
CFLAGS="$CFLAGS -export-dynamic"
AC_CACHE_CHECK(if we need the -export-dynamic flag, ac_cv_export_dynamic, [
AC_TRY_LINK(, [int i];, ac_cv_export_dynamic=yes, ac_cv_export_dynamic=no)])
if test "$ac_cv_export_dynamic" = "no"; then
CFLAGS=$hold_cflags
fi
AC_CACHE_CHECK(for compiler option to produce PIC,ac_cv_pic,[
if test "$ac_cv_prog_gcc" = "yes"; then
ac_cv_pic="-fPIC -DPIC -shared"
case `uname -s` in
Darwin*[)]
ac_cv_pic="-bundle -flat_namespace -undefined suppress"
;;
HP-UX*[)]
ac_cv_pic="-fPIC"
;;
esac
else
case `uname -s` in
SunOS*[)]
ac_cv_pic="-KPIC -DPIC -G"
;;
esac
fi
])
AC_CACHE_CHECK(if your system prepends an underscore on symbols,ac_cv_underscore,[
cat >uscore.c << __EOF__
int main() {
return 0;
}
__EOF__
$CC -o uscore $CFLAGS uscore.c 1>&5
if test -z "`strings -a uscore |grep '^_main$'`"; then
ac_cv_underscore=no
else
ac_cv_underscore=yes
fi
rm -f uscore uscore.c
])
if test "$ac_cv_underscore" = "yes"; then
AC_DEFINE(UNDERSCORE)
fi
MODULEFLAGS=$ac_cv_pic
AC_DEFINE(DYNAMIC_LINKING)
])
AC_DEFUN(AC_ENABLE_INET6,[
AC_CACHE_CHECK(if your system has IPv6 support, ac_cv_ip6, [
save_libs="$LIBS"
LIBS="$LIBS $SOCKLIB"
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/socket.h>
int main() {
if (socket(AF_INET6, SOCK_STREAM, 0) < 0)
exit(1);
exit(0);
}
], ac_cv_ip6=yes, ac_cv_ip6=no)
])
if test "$ac_cv_ip6" = "no"; then
AC_MSG_WARN(Your system does not support IPv6 so it will not be enabled)
else
AC_DEFINE(INET6)
dnl in6addr_any detection code taken from ratbox
AC_MSG_CHECKING([for struct in6addr_any])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#define IN_AUTOCONF
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>]],
[[struct in6_addr a = in6addr_any;]]
)],
[AC_MSG_RESULT(yes)],
[
AC_MSG_RESULT(no)
AC_DEFINE(NO_IN6ADDR_ANY)
]
)
fi
LIBS="$save_libs"
])
AC_CHECK_HEADER(sys/param.h,AC_DEFINE(PARAMH))
AC_CHECK_HEADER(stdlib.h,AC_DEFINE(STDLIBH))
AC_CHECK_HEADER(stddef.h,AC_DEFINE(STDDEFH))
AC_CHECK_HEADER(sys/syslog.h,AC_DEFINE(SYSSYSLOGH))
AC_CHECK_HEADER(unistd.h,AC_DEFINE(UNISTDH))
AC_CHECK_HEADER(string.h,AC_DEFINE(STRINGH))
AC_CHECK_HEADER(strings.h,AC_DEFINE(STRINGSH))
AC_CHECK_HEADER(malloc.h,AC_DEFINE(MALLOCH,<malloc.h>))
AC_CHECK_HEADER(sys/rusage.h,AC_DEFINE(RUSAGEH))
AC_CHECK_HEADER(glob.h,AC_DEFINE(GLOBH))
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_STRUCT_TM
AC_TYPE_UID_T
unreal_CHECK_TYPE_SIZES
AC_CACHE_CHECK(what kind of nonblocking sockets you have, ac_cv_nonblocking,[
save_libs="$LIBS"
LIBS="$LIBS $SOCKLIB"
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <signal.h>
alarmed() {
exit(1);
}
int main() {
#ifdef O_NONBLOCK
char b[12], x[32];
int f, l = sizeof(x);
f = socket(AF_INET, SOCK_DGRAM, 0);
if (f >= 0 && !(fcntl(f, F_SETFL, O_NONBLOCK))) {
signal(SIGALRM, alarmed);
alarm(3);
recvfrom(f, b, 12, 0, (struct sockaddr *)x, &l);
alarm(0);
exit(0);
}
#endif
exit(1);
}
],ac_cv_nonblocking=O_NONBLOCK,[
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <signal.h>
alarmed() {
exit(0);
}
int main() {
#ifdef O_NDELAY
char b[12], x[32];
int f, l = sizeof(x);
f = socket(AF_INET, SOCK_DGRAM, 0);
if (f >= 0 && !(fcntl(f, F_SETFL, O_NDELAY))) {
signal(SIGALRM, alarmed);
alarm(3);
recvfrom(f, b, 12, 0, (struct sockaddr *)x, &l);
alarm(0);
exit(0);
}
#endif
exit(1);
}],ac_cv_nonblocking=O_NDELAY,[
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <signal.h>
alarmed() {
exit(1);
}
int main() {
#ifdef FIONBIO
char b[12], x[32];
int f, l = sizeof(x);
f = socket(AF_INET, SOCK_DGRAM, 0);
if (f >= 0 && !(fcntl(f, F_SETFL, FIONBIO))) {
signal(SIGALRM, alarmed);
alarm(3);
recvfrom(f, b, 12, 0, (struct sockaddr *)x, &l);
alarm(0);
exit(0);
}
#endif
exit(1);
], ac_cv_nonblocking=FIONBIO,ac_cv_nonblocking=none)])])])
if test "$ac_cv_nonblocking" = "O_NONBLOCK"; then
AC_DEFINE(NBLOCK_POSIX)
elif test "$ac_cv_nonblocking" = "O_NDELAY"; then
AC_DEFINE(NBLOCK_BSD)
elif test "$ac_cv_nonblocking" = "FIONBIO"; then
AC_DEFINE(NBLOCK_SYSV)
fi
LIBS="$save_libs"
dnl Checks for library functions.
AC_PROG_GCC_TRADITIONAL
AC_FUNC_SETPGRP
AC_FUNC_SETVBUF_REVERSED
AC_FUNC_ALLOCA
AC_CHECK_FUNCS(snprintf,AC_DEFINE(HAVE_SNPRINTF))
AC_CHECK_FUNCS(vsnprintf,AC_DEFINE(HAVE_VSNPRINTF))
AC_CHECK_FUNCS(strlcpy, AC_DEFINE(HAVE_STRLCPY))
AC_CHECK_FUNCS(strlcat, AC_DEFINE(HAVE_STRLCAT))
AC_CHECK_FUNCS(strlncat, AC_DEFINE(HAVE_STRLNCAT))
AC_CHECK_FUNCS(inet_pton, AC_DEFINE(HAVE_INET_PTON))
AC_CHECK_FUNCS(inet_ntop, AC_DEFINE(HAVE_INET_NTOP))
dnl Check if it supports C99 style variable length arrays
AC_CACHE_CHECK(if C99 variable length arrays are supported, ac_cv_varlen_arrays, [
AC_TRY_COMPILE(,[
int main() {
int i = 5;
int a[i];
a[0] = 1;
return 0;
}], ac_cv_varlen_arrays=yes, ac_cv_varlen_arrays=no)
])
if test "$ac_cv_varlen_arrays" = "yes" ; then
AC_DEFINE(HAVE_C99_VARLEN_ARRAY)
fi
AC_CACHE_CHECK(if we can set the core size to unlimited, ac_cv_force_core,[
AC_TRY_RUN([
#include <sys/time.h>
#include <sys/resource.h>
#include <unistd.h>
int main() {
struct rlimit corelim;
corelim.rlim_cur = corelim.rlim_max = RLIM_INFINITY;
if (setrlimit(RLIMIT_CORE, &corelim))
exit(1);
exit(0);
}
],ac_cv_force_core=yes,ac_cv_force_core=no)
])
if test "$ac_cv_force_core" = "yes"; then
AC_DEFINE(FORCE_CORE)
fi
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(gettimeofday,AC_DEFINE(GETTIMEOFDAY),[AC_CHECK_FUNCS(lrand48,AC_DEFINE(LRADN48))])
AC_CHECK_FUNCS(getrusage,AC_DEFINE(GETRUSAGE_2),[AC_CHECK_FUNCS(times,AC_DEFINE(TIMES_2))])
AC_CHECK_FUNCS(setproctitle,AC_DEFINE(HAVE_SETPROCTITLE),[
AC_CHECK_LIB(util,setproctitle,AC_DEFINE(HAVE_SETPROCTITLE) IRCDLIBS="$IRCDLIBS-lutil",[
AC_EGREP_HEADER([#define.*PS_STRINGS.*],sys/exec.h,AC_DEFINE(HAVE_PSSTRINGS),[
AC_CHECK_FUNCS(pstat,AC_DEFINE(HAVE_PSTAT))
])
])
])
AC_CACHE_CHECK(what type of signals you have, ac_cv_sigtype, [
AC_TRY_RUN([
#include <signal.h>
int main() {
sigaction(SIGTERM, (struct sigaction *)0L, (struct sigaction *)0L);
}
], ac_cv_sigtype=POSIX, [
AC_TRY_RUN([
#include <signal.h>
int calls = 0;
void handler()
{
if (calls)
return;
calls++;
kill(getpid(), SIGTERM);
sleep(1);
}
int main() {
signal(SIGTERM, handler);
kill(getpid(), SIGTERM);
exit(0);
}
], ac_cv_sigtype=BSD,ac_cv_sigtype=SYSV)])])
if test "$ac_cv_sigtype" = "POSIX"; then
AC_DEFINE(POSIX_SIGNALS)
elif test "$ac_cv_sigtype" = "BSD"; then
AC_DEFINE(BSD_RELIABLE_SIGNALS)
else
AC_DEFINE(SYSV_UNRELIABLE_SIGNALS)
fi
AC_CHECK_FUNCS(strtoken,,AC_DEFINE(NEED_STRTOKEN))
AC_CHECK_FUNCS(strtok,,AC_DEFINE(NEED_STRTOK))
AC_CHECK_FUNCS(strerror,,AC_DEFINE(NEED_STRERROR))
AC_CHECK_FUNCS(index,,AC_DEFINE(NOINDEX))
AC_CHECK_FUNCS(strtoul,,STRTOUL="strtoul.o")
AC_CHECK_FUNCS(bcopy,,AC_DEFINE(NEED_BCOPY))
AC_CHECK_FUNCS(bcmp,,AC_DEFINE(NEED_BCMP))
AC_CHECK_FUNCS(bzero,,AC_DEFINE(NEED_BZERO))
AC_CHECK_FUNCS(strcasecmp,AC_DEFINE(GOT_STRCASECMP))
save_libs="$LIBS"
LIBS="$LIBS $SOCKLIB $INETLIB"
AC_CHECK_FUNCS(inet_addr,,AC_DEFINE(NEED_INET_ADDR))
AC_CHECK_FUNCS(inet_ntoa,,AC_DEFINE(NEED_INET_NTOA))
AC_CHECK_FUNCS(inet_netof,,AC_DEFINE(NEED_INET_NETOF))
LIBS="$save_libs"
AC_CHECK_FUNCS(syslog,AC_DEFINE(HAVE_SYSLOG))
AC_CHECK_FUNCS(vsyslog,AC_DEFINE(HAVE_VSYSLOG))
AC_SUBST(STRTOUL)
AC_SUBST(CRYPTOLIB)
AC_SUBST(MODULEFLAGS)
AC_ARG_WITH(listen, [AC_HELP_STRING([--with-listen=backlog],[Specify the listen backlog value])],
AC_DEFINE_UNQUOTED(LISTEN_SIZE,$withval),AC_DEFINE(LISTEN_SIZE,5))
AC_ARG_WITH(nick-history, [AC_HELP_STRING([--with-nick-history=length],[Specify the length of the nickname history])],
AC_DEFINE_UNQUOTED(NICKNAMEHISTORYLENGTH,$withval), AC_DEFINE(NICKNAMEHISTORYLENGTH,2000))
AC_ARG_WITH(sendq, [AC_HELP_STRING([--with-sendq=maxsendq],[Specify the max sendq for the server])],
AC_DEFINE_UNQUOTED(MAXSENDQLENGTH,$withval),AC_DEFINE(MAXSENDQLENGTH,3000000))
AC_ARG_WITH(bufferpool, [AC_HELP_STRING([--with-bufferpool=size],[Specify the size of the buffer pool])],
AC_DEFINE_UNQUOTED(BUFFERPOOL,[($withval * MAXSENDQLENGTH)]),AC_DEFINE(BUFFERPOOL,[(18 * MAXSENDQLENGTH)]))
AC_ARG_WITH(hostname, [AC_HELP_STRING([--with-hostname=host],[Specify the local hostname of the server])], AC_DEFINE_UNQUOTED(DOMAINNAME,"$withval"),AC_DEFINE_UNQUOTED(DOMAINNAME,"`hostname`"))
AC_DEFINE_UNQUOTED(MYOSNAME,"`uname -a`")
AC_ARG_WITH(permissions, [AC_HELP_STRING([--with-permissions=permissions],[Specify the default permissions for
configuration files])], AC_DEFINE_UNQUOTED(DEFAULT_PERMISSIONS,$withval), AC_DEFINE(DEFAULT_PERMISSIONS, 0600))
AC_ARG_WITH(dpath, [AC_HELP_STRING([--with-dpath=path],[Specify the path where configuration files are stored])],
AC_DEFINE_UNQUOTED(DPATH, "$withval") IRCDDIR="$withval", AC_DEFINE_UNQUOTED(DPATH,"`pwd`") IRCDDIR="`pwd`")
AC_ARG_WITH(fd-setsize, [AC_HELP_STRING([--with-fd-setsize=size],[Specify the max file descriptors to use])],
ac_fd=$withval, ac_fd=1024)
AC_DEFINE_UNQUOTED(MAXCONNECTIONS, $ac_fd)
AC_ARG_WITH(spath, [AC_HELP_STRING([--with-spath],[Specify the location of the executable])],
AC_DEFINE_UNQUOTED(SPATH,"$withval") BINDIR="$withval",AC_DEFINE_UNQUOTED(SPATH,"`pwd`/src/ircd") BINDIR="`pwd`/src/ircd")
AC_ARG_ENABLE(nospoof, [AC_HELP_STRING([--enable-nospoof],[Enable spoofing protection])], AC_DEFINE(NOSPOOF))
AC_ARG_ENABLE(prefixaq, [AC_HELP_STRING([--enable-prefixaq],[Enable chanadmin and chanowner prefixes])], AC_DEFINE(PREFIX_AQ))
AC_ARG_ENABLE(hub, [AC_HELP_STRING([--enable-hub],[Compile as a hub server])], AC_DEFINE(HUB))
AC_ARG_WITH(showlistmodes, [AC_HELP_STRING([--with-showlistmodes], [Specify whether modes are shown in /list])],
AC_DEFINE(LIST_SHOW_MODES))
AC_ARG_WITH(topicisnuhost, [AC_HELP_STRING([--with-topicisnuhost], [Display nick!user@host as the topic setter])],
AC_DEFINE(TOPIC_NICK_IS_NUHOST))
AC_ARG_WITH(shunnotices, [AC_HELP_STRING([--with-shunnotices], [Notify a user when he/she is no longer shunned])],
AC_DEFINE(SHUN_NOTICES))
AC_ARG_WITH(no-operoverride, [AC_HELP_STRING([--with-no-operoverride], [Disable OperOverride])],
AC_DEFINE(NO_OPEROVERRIDE))
AC_ARG_WITH(disableusermod, [AC_HELP_STRING([--with-disableusermod], [Disable /set* and /chg*])],
AC_DEFINE(DISABLE_USERMOD))
AC_ARG_WITH(operoverride-verify, [AC_HELP_STRING([--with-operoverride-verify], [Require opers to invite themselves to +s/+p channels])],
AC_DEFINE(OPEROVERRIDE_VERIFY))
CHECK_SSL
CHECK_ZLIB
CHECK_LIBCURL
AC_ARG_ENABLE(dynamic-linking, [AC_HELP_STRING([--enable-dynamic-linking],[Make the IRCd dynamically link shared objects rather than statically])], AC_ENABLE_DYN, AC_DEFINE(STATIC_LINKING))
AC_ARG_ENABLE(inet6, [AC_HELP_STRING([--enable-inet6],[Make the IRCd support IPv6])], AC_ENABLE_INET6)
AC_SUBST(IRCDDIR)
AC_SUBST(BINDIR)
AC_MSG_CHECKING(if FD_SETSIZE is large enough to allow $ac_fd file descriptors)
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/time.h>
int main() {
if (FD_SETSIZE >= $ac_fd)
exit(0);
exit(1);
}
], AC_MSG_RESULT(yes), [
FD_SETSIZE="-DFD_SETSIZE=$ac_fd"
AC_MSG_RESULT(no)
])
AC_SUBST(FD_SETSIZE)
case `uname -s` in
*SunOS*)
CFLAGS="$CFLAGS -D_SOLARIS"
IRCDLIBS="$IRCDLIBS -lresolv "
;;
*solaris*)
CFLAGS="$CFLAGS -D_SOLARIS"
IRCDLIBS="$IRCDLIBS -lresolv "
;;
esac
dnl REMEMBER TO CHANGE WITH A NEW TRE RELEASE!
tre_version="0.7.2"
AC_MSG_RESULT(extracting TRE regex library)
cur_dir=`pwd`
cd extras
dnl remove old tre directory to force a recompile...
rm -rf tre-$tre_version
if test "x$ac_cv_path_GUNZIP" = "x" ; then
tar xfz tre.tar.gz
else
cp tre.tar.gz tre.tar.gz.bak
gunzip -f tre.tar.gz
cp tre.tar.gz.bak tre.tar.gz
tar xf tre.tar
fi
AC_MSG_RESULT(configuring TRE regex library)
cd tre-$tre_version
./configure --disable-agrep --disable-shared --disable-system-abi --disable-wchar --disable-multibyte --prefix=$cur_dir/extras/regexp || exit 1
AC_MSG_RESULT(compiling TRE regex library)
$ac_cv_prog_MAKER || exit 1
AC_MSG_RESULT(installing TRE regex library)
$ac_cv_prog_MAKER install || exit 1
TREINCDIR="$cur_dir/extras/regexp/include"
AC_SUBST(TREINCDIR)
if test "x$ac_cv_path_PKGCONFIG" = "x" ; then
TRELIBS="-L../extras/regexp/lib -ltre"
else
TRELIBS=`$ac_cv_path_PKGCONFIG --libs tre.pc`
fi
AC_SUBST(TRELIBS)
cd $cur_dir
dnl REMEMBER TO CHANGE WITH A NEW C-ARES RELEASE!
cares_version="1.3.0"
AC_MSG_RESULT(extracting c-ares resolver library)
cur_dir=`pwd`
cd extras
dnl remove old c-ares directory to force a recompile...
rm -rf c-ares-$cares_version
if test "x$ac_cv_path_GUNZIP" = "x" ; then
tar xfz c-ares.tar.gz
else
cp c-ares.tar.gz c-ares.tar.gz.bak
gunzip -f c-ares.tar.gz
cp c-ares.tar.gz.bak c-ares.tar.gz
tar xf c-ares.tar
fi
AC_MSG_RESULT(configuring c-ares library)
cd c-ares-$cares_version
./configure --prefix=$cur_dir/extras/c-ares || exit 1
AC_MSG_RESULT(compiling c-ares resolver library)
$ac_cv_prog_MAKER || exit 1
AC_MSG_RESULT(installing c-ares resolver library)
$ac_cv_prog_MAKER install || exit 1
CARESINCDIR="$cur_dir/extras/c-ares/include"
AC_SUBST(CARESINCDIR)
CARESLIBS="-L../extras/c-ares/lib -lcares"
AC_SUBST(CARESLIBS)
cd $cur_dir
AC_OUTPUT(Makefile src/modules/Makefile unreal ircdcron/ircdchk)
chmod 0700 unreal
chmod 0700 ircdcron/ircdchk