AC_INIT(lib-src/rwhois.h)

AC_PROG_CC
AC_PROG_RANLIB

AC_CANONICAL_HOST

AC_CONFIG_HEADER(config.h)
AC_STDC_HEADERS
AC_CHECK_HEADERS(string.h strings.h unistd.h fcntl.h sys/file.h)

AC_CHECK_FUNCS(getaddrinfo, [have_getaddrinfo=yes], [have_getaddrinfo=no])

dnl
dnl Detect Operating Systems and Add Some Libraries
dnl
case "$host" in
  *-sunos5.6* | *-solaris2.6*)
      AC_CHECK_LIB(xnet, main)
  ;;
  *-sunos5* | *-solaris2*)
      AC_CHECK_LIB(socket, main)
      AC_CHECK_LIB(nsl, main)
  ;;
  *-linux-*)
      opsys=gnu-linux
      AC_CHECK_LIB(resolv, main)
  ;;
   *-bsdi*)
      opsys=bsdi
      AC_CHECK_LIB(kvm, main)
  ;;
esac

dnl The version
if test -f VERSION; then
        version_file="VERSION"
elif test -f ../VERSION; then
        version_file="../VERSION"
else
        version_file=`dirname $0`
fi
VERSION=`cat $version_file`
AC_SUBST(VERSION)
TARGETLABEL=$VERSION
AC_SUBST(TARGETLABEL)

dnl
dnl DEBUG
dnl
AC_ARG_ENABLE(debug,
[  --enable-debug          turn on debug messages],
[ AC_MSG_RESULT(Enabling debug messages)
  CFLAGS="-g -Wall -DDEBUG" ])


dnl
dnl IPv6 function
dnl

AC_ARG_ENABLE(ipv6,
[  --disable-ipv6          turn off IPv6 features])

AC_MSG_CHECKING(whether to enable IPv6 functionality)
if test "${enable_ipv6}" = "no"; then
	AC_MSG_RESULT(disabled)
else
   dnl KAME IPv6
   if grep WIDE /usr/include/netinet6/in6.h >/dev/null 2>&1; then
      if [ -d /usr/local/v6/lib -a -f /usr/local/v6/lib/libinet6.a ]; then
         IPV6LIBS="-L/usr/local/v6/lib -linet6"
      fi
      TARGETLABEL="${TARGETLABEL}-ipv6"
      AC_MSG_RESULT(KAME)
   dnl Linux IPv6
   elif test x`ls /proc/net/ipv6_route 2>/dev/null` = x"/proc/net/ipv6_route" 
   then
      if [ -d /usr/inet6/lib ]; then
         IPV6LIBS="-L/usr/inet6/lib -linet6"
         IPV6INCLUDES="-I/usr/inet6/include"
      fi
      TARGETLABEL="${TARGETLABEL}-ipv6"
      AC_MSG_RESULT(Linux IPv6)
   else
      AC_MSG_RESULT(no)
   fi
fi

AC_SUBST(IPV6LIBS)
AC_SUBST(IPV6INCLUDES)

AC_OUTPUT(Makefile lib-src/Makefile rwhois-src/Makefile rwhois-src/conf.h)