+# memmove: A/UX libUTIL
+AC_SEARCH_LIBS([memmove], [UTIL], [], [
+ AC_MSG_ERROR([unable to find the memmove() function])
+])
+# gethostbyname: Solaris libnsl
+AC_SEARCH_LIBS([gethostbyname], [nsl], [], [
+ AC_MSG_ERROR([unable to find the gethostbyname() function])
+])
+# bind: SVR4 libsocket
+AC_SEARCH_LIBS([bind], [socket], [], [
+ AC_MSG_ERROR([unable to find the bind() function])
+])
+
+# -- Functions --
+
+AC_FUNC_FORK
+AC_FUNC_STRFTIME
+
+# Required functions
+AC_CHECK_FUNCS([ \
+ alarm dup2 endpwent gethostbyaddr gethostbyname gethostname \
+ gettimeofday inet_ntoa memmove memset setsid socket strcasecmp \
+ strchr strcspn strerror strncasecmp strrchr strspn strstr \
+ ],,
+ AC_MSG_ERROR([required function missing!]))
+
+# Optional functions
+AC_CHECK_FUNCS_ONCE([ \
+ gai_strerror getaddrinfo getnameinfo inet_aton sigaction sigprocmask \
+ snprintf vsnprintf strdup strlcpy strlcat strtok_r waitpid])
+
+# -- Configuration options --
+
+# use syslog?
+
+x_syslog_on=no
+AC_ARG_WITH(syslog,
+ AS_HELP_STRING([--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 $LDFLAGS"
+ fi
+ AC_SEARCH_LIBS([syslog], [be], [x_syslog_on=yes], [
+ AC_MSG_ERROR([Can't enable syslog!])
+ ])
+ fi
+ ],
+ [ AC_SEARCH_LIBS([syslog], [be], [x_syslog_on=yes])
+ ]
+)
+if test "$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,
+ AS_HELP_STRING([--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,
+ AS_HELP_STRING([--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 $LDFLAGS"
+ fi
+ AC_CHECK_FUNCS(select, x_io_select=yes,
+ AC_MSG_ERROR([Can't enable select IO support!])
+ )
+ fi
+ ],
+ [
+ AC_CHECK_FUNCS(select, x_io_select=yes)
+ ]
+)
+
+AC_ARG_WITH(poll,
+ AS_HELP_STRING([--without-poll],
+ [disable poll support (autodetected by default)]),
+ [ if test "$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, [
+ AC_CHECK_HEADERS(poll.h,
+ x_io_backend=poll\(\),
+ AC_MSG_ERROR(
+ [Can't enable poll IO support!])
+ )
+ ], [
+ AC_MSG_ERROR([Can't enable poll IO support!])
+ ])
+ fi
+ ],
+ [
+ AC_CHECK_FUNCS(poll, [
+ AC_CHECK_HEADERS(poll.h, x_io_backend=poll\(\))
+ ])
+ ]
+)
+
+AC_ARG_WITH(devpoll,
+ AS_HELP_STRING([--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 $LDFLAGS"
+ fi
+
+ AC_CHECK_HEADERS(sys/devpoll.h,,AC_MSG_ERROR([required C header missing!]))
+ fi
+ ],
+ [
+ AC_CHECK_HEADERS(sys/devpoll.h, x_io_backend=/dev/poll)
+ ]
+)
+
+AC_ARG_WITH(epoll,
+ AS_HELP_STRING([--without-epoll],
+ [disable epoll IO support (autodetected by default)]),
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_FUNCS(epoll_create, x_io_epoll=yes,
+ AC_MSG_ERROR([Can't enable epoll IO support!])
+ )
+ fi
+ ],
+ [
+ AC_CHECK_FUNCS(epoll_create, x_io_epoll=yes)
+ ]
+)
+
+AC_ARG_WITH(kqueue,
+ AS_HELP_STRING([--without-kqueue],
+ [disable kqueue IO support (autodetected by default)]),
+ [ if test "$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 useable IO API activated/found!?])
+fi
+
+# use SSL?
+
+AC_ARG_WITH(openssl,
+ AS_HELP_STRING([--with-openssl],
+ [enable SSL support using OpenSSL]),
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_LIB(crypto, BIO_s_mem)
+ AC_CHECK_LIB(ssl, SSL_library_init)
+ AC_CHECK_FUNCS(SSL_library_init, x_ssl_openssl=yes,
+ AC_MSG_ERROR([Can't enable openssl])
+ )
+ fi
+ ]
+)
+
+AC_ARG_WITH(gnutls,
+ AS_HELP_STRING([--with-gnutls],
+ [enable SSL support using gnutls]),
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_LIB(gnutls, gnutls_global_init)
+ AC_CHECK_FUNCS(gnutls_global_init, x_ssl_gnutls=yes,
+ AC_MSG_ERROR([Can't enable gnutls])
+ )
+ fi
+ ]
+)
+
+x_ssl_lib="no"
+if test "$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,
+ AS_HELP_STRING([--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 $LIBS"
+ AC_TRY_LINK([
+#include <tcpd.h>
+int allow_severity = 0;
+int deny_severity = 0;
+ ],[
+ tcpd_warn("link test");
+ ],[
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(TCPWRAP, 1)
+ x_tcpwrap_on=yes
+ ],[
+ AC_MSG_RESULT(no)
+ AC_MSG_ERROR([Can't enable TCP wrappers!])
+ ])
+ fi
+ ]
+)
+
+# do IDENT requests using libident?
+
+x_identauth_on=no
+AC_ARG_WITH(ident,
+ AS_HELP_STRING([--with-ident],
+ [enable "IDENT" ("AUTH") protocol support]),
+ [ if test "$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 PAM support?
+
+x_pam_on=no
+AC_ARG_WITH(pam,
+ AS_HELP_STRING([--with-pam],
+ [enable user authentication using PAM]),
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_LIB(pam, pam_authenticate)
+ AC_CHECK_FUNCS(pam_authenticate, x_pam_on=yes,
+ AC_MSG_ERROR([Can't enable PAM support!])
+ )
+ fi
+ ]
+)
+if test "$x_pam_on" = "yes"; then
+ AC_DEFINE(PAM, 1)
+ AC_CHECK_HEADERS(security/pam_appl.h,pam_ok=yes)
+ if test "$pam_ok" != "yes"; then
+ AC_CHECK_HEADERS(pam/pam_appl.h,pam_ok=yes,
+ AC_MSG_ERROR([required C header missing!]))
+ fi
+fi
+
+# compile in IRC+ protocol support?
+
+x_ircplus_on=yes
+AC_ARG_ENABLE(ircplus,
+ AS_HELP_STRING([--disable-ircplus],
+ [disable IRC+ protocol]),
+ if test "$enableval" = "no"; then x_ircplus_on=no; fi
+)
+if test "$x_ircplus_on" = "yes"; then
+ AC_DEFINE(IRCPLUS, 1)
+fi
+
+# enable support for IPv6?
+x_ipv6_on=no
+AC_ARG_ENABLE(ipv6,
+ AS_HELP_STRING([--enable-ipv6],
+ [enable IPv6 protocol support]),
+ if test "$enableval" = "yes"; then x_ipv6_on=yes; fi
+)
+if test "$x_ipv6_on" = "yes"; then
+ # getaddrinfo() and getnameinfo() are optional when not compiling
+ # with IPv6 support, but are required for IPv6 to work!
+ AC_CHECK_FUNCS([ \
+ getaddrinfo getnameinfo \
+ ],,AC_MSG_ERROR([required function missing for IPv6 support!]))
+ AC_DEFINE(WANT_IPV6, 1)
+fi
+
+# compile in IRC "sniffer"?
+
+x_sniffer_on=no; x_debug_on=no
+AC_ARG_ENABLE(sniffer,
+ AS_HELP_STRING([--enable-sniffer],
+ [enable IRC traffic sniffer (enables debug mode)]),
+ if test "$enableval" = "yes"; then
+ AC_DEFINE(SNIFFER, 1)
+ x_sniffer_on=yes; x_debug_on=yes
+ fi
+)
+
+# enable additional debugging code?
+
+AC_ARG_ENABLE(debug,
+ AS_HELP_STRING([--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 $CFLAGS"
+ AC_CHECK_FUNCS(mtrace)
+fi
+
+# enable "strict RFC rules"?
+
+x_strict_rfc_on=no
+AC_ARG_ENABLE(strict-rfc,
+ AS_HELP_STRING([--enable-strict-rfc],
+ [strict RFC conformance -- may break clients!]),
+ if test "$enableval" = "yes"; then
+ AC_DEFINE(STRICT_RFC, 1)
+ x_strict_rfc_on=yes
+ fi
+)
+
+# -- Definitions --
+
+AC_DEFINE_UNQUOTED(HOST_CPU, "$host_cpu" )
+AC_DEFINE_UNQUOTED(HOST_VENDOR, "$host_vendor" )
+AC_DEFINE_UNQUOTED(HOST_OS, "$host_os" )
+
+# Add additional CFLAGS, eventually specified on the command line, but after
+# running this configure script. Useful for "-Werror" for example.
+test -n "$CFLAGS_END" && CFLAGS="$CFLAGS $CFLAGS_END"
+
+# -- Generate files --
+
+AC_CONFIG_FILES([ \
+ Makefile \
+ contrib/Anope/Makefile \
+ contrib/Debian/Makefile \
+ contrib/MacOSX/Makefile \
+ contrib/MacOSX/ngIRCd.pmdoc/Makefile \
+ contrib/MacOSX/ngIRCd.xcodeproj/Makefile \
+ contrib/Makefile \
+ doc/Makefile \
+ doc/src/Makefile \
+ man/Makefile \
+ src/ipaddr/Makefile \
+ src/Makefile \
+ src/ngircd/Makefile \
+ src/portab/Makefile \
+ src/testsuite/Makefile \
+ src/tool/Makefile \
+])
+
+AC_OUTPUT
+
+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 ${docdir}` ; D=`eval echo ${D}`
+
+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 " IDENT support: $ECHO_C"
+test "$x_identauth_on" = "yes" \
+ && echo $ECHO_N "yes $ECHO_C" \
+ || echo $ECHO_N "no $ECHO_C"
+echo $ECHO_N " IRC+ protocol: $ECHO_C"
+test "$x_ircplus_on" = "yes" \
+ && echo "yes" \
+ || echo "no"
+
+echo $ECHO_N " IPv6 protocol: $ECHO_C"
+test "$x_ipv6_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\""