AC_INIT(lisp/liece.el)
AM_INIT_AUTOMAKE(liece, 1.4.4)

AM_PATH_LISPDIR

AC_PROG_CC
AC_ISC_POSIX
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_PROG_RANLIB

AC_CHECK_HEADERS(sys/select.h libgen.h socks.h netinet6/in6.h)

AC_CHECK_LIB(nsl, gethostbyname)
AC_CHECK_LIB(socket, socket)

AC_CHECK_FUNCS(strtoul memmove basename getaddrinfo)

AC_CHECK_TYPE(fd_set, int)

dnl checking if the system supports ipv6 address space or not
AC_CACHE_CHECK([for struct in6_addr], ac_cv_struct_in6_addr,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet6/in6.h>], [struct in6_addr v6; v6.s6_addr32[3];],
ac_cv_struct_in6_addr=yes, ac_cv_struct_in6_addr=no)])
test "x$ac_cv_struct_in6_addr" = "xyes" && AC_DEFINE(HAVE_IN6_ADDR)

dnl checking if the system supports tcp over ipv6 support or not
AC_CACHE_CHECK([for struct sockaddr_in6], ac_cv_struct_sockaddr_in6,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet6/in6.h>], [struct sockaddr_in6 v6; v6.sin6_addr;],
ac_cv_struct_sockaddr_in6=yes, ac_cv_struct_sockaddr_in6=no)])
test "x$ac_cv_struct_sockaddr_in6" = "xyes" && AC_DEFINE(HAVE_SOCKADDR_IN6)

# Check compile with IPv6 support
AC_MSG_CHECKING(whether we compile with IPv6)
AC_ARG_ENABLE(ipv6, \
 [ --enable-ipv6           compile with IPv6 [default=no]],, \
    enable_ipv6=no)
test "x$enable_ipv6" = "xyes" && AC_DEFINE(INET6)
AC_MSG_RESULT($enable_ipv6)

# Check whether to retrieve APEL/FLIM distribution.
AC_MSG_CHECKING(whether we retrieve APEL/FLIM distribution via CVS)
AC_ARG_ENABLE(tm, \
 [ --enable-tm             retrieve APEL/FLIM distribution via CVS [default=no]],, \
    enable_tm=no)
if test "x$enable_tm" = "xyes"; then
    AC_MSG_RESULT(yes)
else 
    AC_MSG_RESULT(no)
fi
AM_CONDITIONAL(USE_TM, test x$enable_tm = xyes)

AC_OUTPUT(Makefile \
lisp/Makefile \
dcc/Makefile \
doc/Makefile \
etc/Makefile)