+AC_CHECK_LIB(UTIL,memmove)
+AC_CHECK_LIB(socket,bind)
+AC_CHECK_LIB(nsl,gethostent)
+
+# -- Functions --
+
+AC_FUNC_FORK
+AC_FUNC_STRFTIME
+
+AC_CHECK_FUNCS([ \
+ bind gethostbyaddr gethostbyname gethostname inet_ntoa \
+ setsid setsockopt socket strcasecmp waitpid],,AC_MSG_ERROR([required function missing!]))
+
+AC_CHECK_FUNCS(inet_aton isdigit sigaction snprintf vsnprintf strdup strlcpy strlcat strtok_r)
+
+# -- Configuration options --
+
+# use syslog?
+
+x_syslog_on=no
+AC_ARG_WITH(syslog,
+ [ --without-syslog disable syslog (autodetected by default)],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_LIB(be, syslog)
+ AC_CHECK_FUNCS(syslog, x_syslog_on=yes,
+ AC_MSG_ERROR([Can't enable syslog!])
+ )
+ fi
+ ],
+ [
+ AC_CHECK_LIB(be, syslog)
+ AC_CHECK_FUNCS(syslog, x_syslog_on=yes)
+ ]
+)
+if test "$x_syslog_on" = "yes"; then
+ AC_DEFINE(SYSLOG, 1)
+ AC_CHECK_HEADERS(syslog.h,,AC_MSG_ERROR([required C header missing!]))
+fi
+
+# use zlib compression?
+
+x_zlib_on=no
+AC_ARG_WITH(zlib,
+ [ --without-zlib disable zlib compression (autodetected by default)],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_LIB(z, deflate)
+ AC_CHECK_FUNCS(deflate, x_zlib_on=yes,
+ AC_MSG_ERROR([Can't enable zlib!])
+ )
+ fi
+ ],
+ [ AC_CHECK_LIB(z, deflate)
+ AC_CHECK_FUNCS(deflate, x_zlib_on=yes)
+ ]
+)
+if test "$x_zlib_on" = "yes"; then
+ AC_DEFINE(ZLIB, 1)
+ AC_CHECK_HEADERS(zlib.h,,AC_MSG_ERROR([required C header missing!]))
+fi
+
+# detect which IO API to use:
+
+x_io_backend=none
+
+AC_ARG_WITH(select,
+ [ --without-select disable select IO support (autodetected by default)],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_FUNCS(select, x_io_select=yes,
+ AC_MSG_ERROR([Can't enable select IO support!])
+ )
+ fi
+ ],
+ [
+ AC_CHECK_FUNCS(select, x_io_select=yes)
+ ]
+)
+
+AC_ARG_WITH(poll,
+ [ --without-poll disable poll support (autodetected by default)],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_FUNCS(poll, x_io_backend=poll\(\),
+ AC_MSG_ERROR([Can't enable poll IO support!])
+ )
+ fi
+ ],
+ [
+ AC_CHECK_FUNCS(poll, x_io_backend=poll\(\))
+ ]
+)
+
+AC_ARG_WITH(devpoll,
+ [ --without-devpoll disable /dev/poll IO support (autodetected by default)],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+
+ AC_CHECK_HEADERS(sys/devpoll.h,,AC_MSG_ERROR([required C header missing!]))
+ fi
+ ],
+ [
+ AC_CHECK_HEADERS(sys/devpoll.h, x_io_backend=/dev/poll)
+ ]
+)
+
+AC_ARG_WITH(epoll,
+ [ --without-epoll disable epoll IO support (autodetected by default)],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_FUNCS(epoll_create, x_io_epoll=yes,
+ AC_MSG_ERROR([Can't enable epoll IO support!])
+ )
+ fi
+ ],
+ [
+ AC_CHECK_FUNCS(epoll_create, x_io_epoll=yes)
+ ]
+)
+
+AC_ARG_WITH(kqueue,
+ [ --without-kqueue disable kqueue IO support (autodetected by default)],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue\(\),
+ AC_MSG_ERROR([Can't enable kqueue IO support!])
+ )
+ fi
+ ],
+ [
+ AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue\(\))
+ ]
+)
+
+if test "$x_io_epoll" = "yes" -a "$x_io_select" = "yes"; then
+ # when epoll() and select() are available, we'll use both!
+ x_io_backend="epoll(), select()"
+else
+ if test "$x_io_epoll" = "yes"; then
+ # we prefere epoll() if it is available
+ x_io_backend="epoll()"
+ else
+ if test "$x_io_select" = "yes" -a "$x_io_backend" = "none"; then
+ # we'll use select, when available and no "better"
+ # interface has been detected ...
+ x_io_backend="select()"
+ fi
+ fi
+fi
+
+if test "$x_io_backend" = "none"; then
+ AC_MSG_ERROR([No useabe IO API activated/found!?])
+fi
+
+# use SSL?
+
+AC_ARG_WITH(openssl,
+ [ --with-openssl enable SSL support using OpenSSL],
+ [ if test "$withval" = "yes"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_LIB(crypto, BIO_s_mem)
+ AC_CHECK_LIB(ssl, SSL_library_init)
+ AC_CHECK_FUNCS(SSL_library_init, x_ssl_openssl=yes,
+ AC_MSG_ERROR([Can't enable openssl])
+ )
+ fi
+ ]
+)
+
+AC_ARG_WITH(gnutls,
+ [ --with-gnutls enable SSL support using gnutls],
+ [ if test "$withval" = "yes"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_LIB(gnutls, gnutls_global_init)
+ AC_CHECK_FUNCS(gnutls_global_init, x_ssl_gnutls=yes,
+ AC_MSG_ERROR([Can't enable gnutls])
+ )
+ fi
+ ]
+)
+
+x_ssl_lib="no"
+if test "$x_ssl_gnutls" = "yes"; then
+ if test "$x_ssl_openssl" = "yes";then
+ AC_MSG_ERROR([Cannot enable both gnutls and openssl])
+ fi
+ x_ssl_lib=gnutls
+fi
+if test "$x_ssl_openssl" = "yes"; then
+ x_ssl_lib=openssl
+fi
+
+# use TCP wrappers?
+
+x_tcpwrap_on=no
+AC_ARG_WITH(tcp-wrappers,
+ [ --with-tcp-wrappers enable TCP wrappers support],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_MSG_CHECKING(for hosts_access)
+ LIBS="-lwrap $LIBS"
+ AC_TRY_LINK([
+#include <tcpd.h>
+int allow_severity = 0;
+int deny_severity = 0;
+ ],[
+ tcpd_warn("link test");
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(TCPWRAP, 1)
+ x_tcpwrap_on=yes
+ ],[
+ AC_MSG_RESULT(no)
+ AC_MSG_ERROR([Can't enable TCP wrappers!])
+ ])
+ fi
+ ]
+)
+
+# include support for "zeroconf"?
+
+x_zeroconf_on=no
+AC_ARG_WITH(zeroconf,
+ [ --with-zeroconf enable support for "Zeroconf"],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_FUNCS(DNSServiceRegistrationCreate, x_zeroconf_on=osx,
+ [
+ AC_CHECK_LIB(pthread, pthread_mutexattr_init)
+ AC_CHECK_LIB(howl, sw_discovery_init)
+ AC_CHECK_FUNCS(sw_discovery_init, \
+ x_zeroconf_on=howl, \
+ AC_MSG_ERROR([Can't enable Zeroconf!]))
+ ])
+ fi
+ ]
+)
+if test "$x_zeroconf_on" = "osx"; then
+ AC_CHECK_HEADERS([DNSServiceDiscovery/DNSServiceDiscovery.h \
+ mach/port.h],,AC_MSG_ERROR([required C header missing!]))
+ AC_DEFINE(ZEROCONF, 1)
+fi
+if test "$x_zeroconf_on" = "howl"; then
+ for dir in /usr/local/include /usr/local/include/howl* \
+ /usr/include /usr/include/howl* \
+ /usr/local/include/avahi* /usr/include/avahi*; do
+ test -d "$dir" || continue
+ AC_MSG_CHECKING([for Howl headers in $dir])
+ if test -f "$dir/rendezvous/rendezvous.h"; then
+ if test "$dir" != "/usr/local/include" -a \
+ "$dir" != "/usr/include"; then
+ CFLAGS="-I$dir $CFLAGS"
+ CPPFLAGS="-I$dir $CPPFLAGS"
+ fi
+ AC_MSG_RESULT(yes)
+ break
+ else
+ AC_MSG_RESULT(no)
+ fi
+ done
+ AC_CHECK_HEADERS([rendezvous/rendezvous.h],, \
+ AC_MSG_ERROR([required C header missing!]))
+ AC_DEFINE(ZEROCONF, 1)
+fi
+
+# do IDENT requests using libident?
+
+x_identauth_on=no
+AC_ARG_WITH(ident,
+ [ --with-ident enable "IDENT" ("AUTH") protocol support],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_LIB(ident, ident_id)
+ AC_CHECK_FUNCS(ident_id, x_identauth_on=yes,
+ AC_MSG_ERROR([Can't enable IDENT support!])
+ )
+ fi
+ ]
+)
+if test "$x_identauth_on" = "yes"; then
+ AC_DEFINE(IDENTAUTH, 1)
+ AC_CHECK_HEADERS(ident.h,,AC_MSG_ERROR([required C header missing!]))
+fi
+
+# compile in IRC+ protocol support?
+
+x_ircplus_on=yes
+AC_ARG_ENABLE(ircplus,
+ [ --disable-ircplus disable IRC+ protocol],
+ if test "$enableval" = "no"; then x_ircplus_on=no; fi
+)
+if test "$x_ircplus_on" = "yes"; then
+ AC_DEFINE(IRCPLUS, 1)
+fi
+
+# enable support for IPv6?
+x_ipv6_on=no
+AC_ARG_ENABLE(ipv6,
+ [ --enable-ipv6 enable IPv6 protocol support],
+ if test "$enableval" = "yes"; then x_ipv6_on=yes; fi
+)
+if test "$x_ipv6_on" = "yes"; then
+ AC_CHECK_FUNCS([ \
+ getaddrinfo getnameinfo \
+ ],,AC_MSG_ERROR([required function missing for IPv6 support!]))
+ AC_DEFINE(WANT_IPV6, 1)
+fi
+
+# compile in IRC "sniffer"?
+
+x_sniffer_on=no; x_debug_on=no
+AC_ARG_ENABLE(sniffer,
+ [ --enable-sniffer enable IRC traffic sniffer (enables debug mode)],
+ if test "$enableval" = "yes"; then
+ AC_DEFINE(SNIFFER, 1)
+ x_sniffer_on=yes; x_debug_on=yes
+ fi
+)
+
+# enable additional debugging code?
+
+AC_ARG_ENABLE(debug,
+ [ --enable-debug show additional debug output],
+ if test "$enableval" = "yes"; then x_debug_on=yes; fi
+)
+if test "$x_debug_on" = "yes"; then
+ AC_DEFINE(DEBUG, 1)
+ test "$GCC" = "yes" && CFLAGS="-pedantic $CFLAGS"
+ AC_CHECK_FUNCS(mtrace)
+fi
+
+# enable "strict RFC rules"?
+
+x_strict_rfc_on=no
+AC_ARG_ENABLE(strict-rfc,
+ [ --enable-strict-rfc strict RFC conformance -- may break clients!],
+ if test "$enableval" = "yes"; then
+ AC_DEFINE(STRICT_RFC, 1)
+ x_strict_rfc_on=yes
+ fi
+)
+
+# -- Definitions --
+
+AC_DEFINE_UNQUOTED(TARGET_CPU, "$target_cpu" )
+AC_DEFINE_UNQUOTED(TARGET_VENDOR, "$target_vendor" )
+AC_DEFINE_UNQUOTED(TARGET_OS, "$target_os" )
+
+# Add additional CFLAGS, eventually specified on the command line, but after
+# running this configure script. Useful for "-Werror" for example.
+test -n "$CFLAGS_END" && CFLAGS="$CFLAGS $CFLAGS_END"
+
+# -- Generate files --
+
+AC_OUTPUT([ \
+ Makefile \
+ doc/Makefile \
+ doc/src/Makefile \
+ src/Makefile \
+ src/portab/Makefile \
+ src/ipaddr/Makefile \
+ src/tool/Makefile \
+ src/ngircd/Makefile \
+ src/testsuite/Makefile \
+ man/Makefile \
+ contrib/Makefile \
+ contrib/Debian/Makefile \
+ contrib/MacOSX/Makefile \
+ contrib/MacOSX/ngIRCd.xcodeproj/Makefile \
+ contrib/MacOSX/ngIRCd.pmdoc/Makefile \
+])
+
+type dpkg >/dev/null 2>&1
+if test $? -eq 0; then
+ # Generate debian/ link if the dpkg command exists
+ # (read: if we are running on a debian compatible system)
+ echo "creating Debian-specific links ..."
+ test -f debian/rules || ln -s contrib/Debian debian
+fi
+
+# -- Result --
+
+echo
+echo "ngIRCd $PACKAGE_VERSION has been configured with the following options:"
+echo
+
+# Someone please show me a better way :) [borrowed by OpenSSH]
+B=`eval echo ${bindir}` ; B=`eval echo ${B}`
+S=`eval echo ${sbindir}` ; S=`eval echo ${S}`
+C=`eval echo ${sysconfdir}` ; C=`eval echo ${C}`
+M=`eval echo ${mandir}` ; M=`eval echo ${M}`
+D=`eval echo ${datadir}/doc/${PACKAGE}` ; D=`eval echo ${D}`
+
+echo " Target: ${target}"
+test "$target" != "$host" && echo " Host: ${host}"
+echo " Compiler: ${CC}"
+test -n "$CFLAGS" && echo " Compiler flags: ${CFLAGS}"
+test -n "$CPPFLAGS" && echo " Preprocessor flags: ${CPPFLAGS}"
+test -n "$LDFLAGS" && echo " Linker flags: ${LDFLAGS}"
+test -n "$LIBS" && echo " Libraries: ${LIBS}"
+echo
+echo " 'ngircd' binary: $S"
+echo " Configuration file: $C"
+echo " Manual pages: $M"
+echo " Documentation: $D"
+echo
+
+echo $ECHO_N " Syslog support: $ECHO_C"
+test "$x_syslog_on" = "yes" \
+ && echo $ECHO_N "yes $ECHO_C" \
+ || echo $ECHO_N "no $ECHO_C"
+echo $ECHO_N " Enable debug code: $ECHO_C"
+test "$x_debug_on" = "yes" \
+ && echo "yes" \
+ || echo "no"
+
+echo $ECHO_N " zlib compression: $ECHO_C"
+test "$x_zlib_on" = "yes" \
+ && echo $ECHO_N "yes $ECHO_C" \
+ || echo $ECHO_N "no $ECHO_C"
+echo $ECHO_N " IRC sniffer: $ECHO_C"
+test "$x_sniffer_on" = "yes" \
+ && echo "yes" \
+ || echo "no"
+
+echo $ECHO_N " Use TCP Wrappers: $ECHO_C"
+test "$x_tcpwrap_on" = "yes" \
+ && echo $ECHO_N "yes $ECHO_C" \
+ || echo $ECHO_N "no $ECHO_C"
+echo $ECHO_N " Strict RFC mode: $ECHO_C"
+test "$x_strict_rfc_on" = "yes" \
+ && echo "yes" \
+ || echo "no"
+
+echo $ECHO_N " Zeroconf support: $ECHO_C"
+case "$x_zeroconf_on" in
+ osx)
+ echo $ECHO_N "Apple $ECHO_C"
+ ;;
+ howl)
+ echo $ECHO_N "Howl $ECHO_C"
+ ;;
+ *)
+ echo $ECHO_N "no $ECHO_C"
+ ;;
+esac
+echo $ECHO_N " IRC+ protocol: $ECHO_C"
+test "$x_ircplus_on" = "yes" \
+ && echo "yes" \
+ || echo "no"
+
+echo $ECHO_N " IDENT support: $ECHO_C"
+test "$x_identauth_on" = "yes" \
+ && echo $ECHO_N "yes $ECHO_C" \
+ || echo $ECHO_N "no $ECHO_C"
+echo $ECHO_N " I/O backend: $ECHO_C"
+ echo "\"$x_io_backend\""
+
+echo $ECHO_N " IPv6 protocol: $ECHO_C"
+echo $ECHO_N "$x_ipv6_on $ECHO_C"