AC_INIT(irssi, 0.8.12)
AC_CONFIG_SRCDIR([src])
AC_PREREQ(2.50)

AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([1.9 no-define])

AM_MAINTAINER_MODE

AC_ISC_POSIX
AC_PROG_CC
AC_PROG_CPP
AC_STDC_HEADERS
AM_PROG_LIBTOOL

AC_PATH_PROG(sedpath, sed)
AC_PATH_PROG(perlpath, perl)

dnl * --disable-static isn't a good idea, complain if it's used
if test "x$enable_static" = "xno"; then
	AC_ERROR([Don't give --disable-static option to configure])
fi

AC_CHECK_HEADERS(string.h stdlib.h unistd.h dirent.h sys/ioctl.h sys/resource.h)

# check posix headers..
AC_CHECK_HEADERS(sys/time.h sys/utsname.h regex.h)

AC_SYS_LARGEFILE

AC_ARG_WITH(socks,
[  --with-socks            Build with socks support],
	if test x$withval = xyes; then
		want_socks=yes
	else
		if test "x$withval" = xno; then
			want_socks=no
		else
			want_socks=yes
		fi
	fi,
	want_socks=no)

AC_ARG_WITH(textui,
[  --with-textui           Build text frontend],
	if test x$withval = xyes; then
		want_textui=yes
	else
		if test "x$withval" = xno; then
			want_textui=no
		else
			want_textui=yes
		fi
	fi,
	want_textui=yes)

AC_ARG_WITH(bot,
[  --with-bot              Build irssi-bot],
	if test x$withval = xyes; then
		want_irssibot=yes
	else
		if test "x$withval" = xno; then
			want_irssibot=no
		else
			want_irssibot=yes
		fi
	fi,
	want_irssibot=no)

AC_ARG_WITH(proxy,
[  --with-proxy            Build irssi-proxy],
	if test x$withval = xyes; then
		want_irssiproxy=yes
	else
		if test "x$withval" = xno; then
			want_irssiproxy=no
		else
			want_irssiproxy=yes
		fi
	fi,
	want_irssiproxy=no)

AC_ARG_WITH(terminfo,
[  --with-terminfo         Use terminfo directly instead of curses],
	if test x$withval = xyes; then
		want_terminfo=yes
	else
		if test "x$withval" = xno; then
			want_terminfo=no
		else
			want_terminfo=yes
		fi
	fi,
	want_terminfo=yes)

AC_ARG_WITH(modules,
[  --with-modules          Specify what modules to build in binary],
	if test x$withval != xyes -a x$withval != xno; then
		build_modules="$withval"
	fi)

if test "x$prefix" != "xNONE"; then
        prefix=`eval echo $prefix`
	PERL_MM_PARAMS="INSTALLDIRS=perl PREFIX=$prefix"
	perl_library_dir="PERL_USE_LIB"
	perl_set_use_lib=yes

	perl_prefix_note=yes
fi

AC_ARG_WITH(gc,
[  --with-gc               Use garbage collector],
	if test x$withval = xyes; then
		want_gc=yes
	else
		if test "x$withval" = xno; then
			want_gc=no
		else
			want_gc=yes
		fi
	fi,
	want_gc=no)

AC_ARG_WITH(perl-staticlib,
[  --with-perl-staticlib   Specify that we want to link perl libraries
                          statically in irssi, default is no],
	if test x$withval = xyes; then
		want_staticperllib=yes
	else
		if test "x$withval" = xno; then
			want_staticperllib=no
		else
			want_staticperllib=yes
		fi
	fi,
	want_staticperllib=no)


AC_ARG_WITH(perl-lib,
[  --with-perl-lib=[site|vendor|DIR]  Specify where to install the
                          Perl libraries for irssi, default is site],
	if test "x$withval" = xyes; then
		want_perl=yes
	elif test "x$withval" = xno; then
		want_perl=no
	elif test "x$withval" = xsite; then
		want_perl=yes
		perl_prefix_note=no
		PERL_MM_PARAMS=""
	elif test "x$withval" = xvendor; then
		want_perl=yes
		perl_prefix_note=no
		if test -z "`$perlpath -v|grep '5\.0'`"; then
			PERL_MM_PARAMS="INSTALLDIRS=vendor"
		else
			PERL_MM_PARAMS="INSTALLDIRS=perl PREFIX=`perl -e 'use Config; print $Config{prefix}'`"
		fi
		perl_library_dir="(vendor default - `$perlpath -e 'use Config; print $Config{archlib}'`)"
	else
		want_perl=yes
		perl_prefix_note=no
		PERL_MM_PARAMS="INSTALLDIRS=perl LIB=$withval"
		perl_library_dir="PERL_USE_LIB"
		perl_set_use_lib=yes
	fi,
	want_perl=yes)

AC_ARG_WITH(perl,
[  --with-perl[=yes|no|module]  Build with Perl support - also specifies
                          if it should be built into main irssi binary
                          (static, default) or as module],
	if test x$withval = xyes; then
		want_perl=static
	elif test x$withval = xstatic; then
		want_perl=static
	elif test x$withval = xmodule; then
		want_perl=module
	else
		want_perl=no
	fi,
	want_perl=static)

AC_ARG_ENABLE(ipv6,
[  --enable-ipv6           Enable IPv6 support],
	if test x$enableval = xyes; then
		want_ipv6=yes
	else
		if test "x$enableval" = xno; then
			want_ipv6=no
		else
			want_ipv6=yes
		fi
	fi,
	want_ipv6=yes)

dnl **
dnl ** SSL Library checks (OpenSSL)
dnl **

AC_ARG_ENABLE(ssl,
	    [  --disable-ssl           Disable Secure Sockets Layer support],,
	    enable_ssl=yes)

dnl **
dnl ** just some generic stuff...
dnl **

dnl * OS specific options
case "$host_os" in
  hpux*)
    CFLAGS="$CFLAGS -D_XOPEN_SOURCE_EXTENDED"
    ;;
  *)
    ;;
esac


AC_CHECK_FUNCS(mkfifo fcntl nl_langinfo)

AC_CHECK_FUNC(socket, [], [
	AC_CHECK_LIB(socket, socket, [
		LIBS="$LIBS -lsocket"
	])
])

AC_CHECK_FUNC(inet_addr, [], [
	AC_CHECK_LIB(nsl, inet_addr, [
		LIBS="$LIBS -lnsl"
	])
])

dnl * gcc specific options
if test "x$ac_cv_prog_gcc" = "xyes"; then
  CFLAGS="$CFLAGS -Wall"
fi

dnl * socklen_t - AC_CHECK_TYPE() would be _really_ useful if it only would
dnl * accept header files where to find the typedef..
AC_MSG_CHECKING([for socklen_t])
AC_CACHE_VAL(irssi_cv_type_socklen_t,
[AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>],
[socklen_t t;],
irssi_cv_type_socklen_t=yes,
irssi_cv_type_socklen_t=no,
)])
if test $irssi_cv_type_socklen_t = no; then
AC_DEFINE(socklen_t, int, Define to 'int' if <sys/socket.h> doesn't define.)
fi
AC_MSG_RESULT($irssi_cv_type_socklen_t)

AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(off_t)

if test $ac_cv_sizeof_off_t = 8; then
  offt_64bit=yes
else
  offt_64bit=no
fi

if test x$ac_cv_sizeof_off_t = x$ac_cv_sizeof_long; then
  # try to use unsigned long always first
  AC_DEFINE_UNQUOTED(PRIuUOFF_T, "lu")
  AC_DEFINE(UOFF_T_LONG)
elif test x$ac_cv_sizeof_off_t = x$ac_cv_sizeof_int; then
  # next try int
  AC_DEFINE_UNQUOTED(PRIuUOFF_T, "u")
  AC_DEFINE(UOFF_T_INT)
elif test x$ac_cv_sizeof_off_t = x$ac_cv_sizeof_long_long; then
  # and finally long long
  AC_DEFINE_UNQUOTED(PRIuUOFF_T, "llu")
  AC_DEFINE(UOFF_T_LONG_LONG)
else
  AC_ERROR([Couldn't find integer type for off_t])
fi

dnl **
dnl ** check for socks
dnl **

if test "x$want_socks" = "xyes"; then
	AC_CHECK_LIB(socks, connect, [
		AC_DEFINE(HAVE_SOCKS,, Build with socks support)
		LIBS="$LIBS -lsocks"
		AC_CHECK_HEADER(socks.h, [
			AC_DEFINE(HAVE_SOCKS_H)
			CFLAGS="$CFLAGS -DSOCKS"
			AC_MSG_RESULT(["socks5 library found, building with it"])
		], [
			AC_MSG_RESULT(["socks4 library found, building with it"])
			CFLAGS="$CFLAGS -Dconnect=Rconnect -Dgetsockname=Rgetsockname -Dgetpeername=Rgetpeername -Dbind=Rbind -Daccept=Raccept -Dlisten=Rlisten -Dselect=Rselect"
		])
	])
fi

dnl **
dnl ** fe-text checks
dnl **

for try in 1 2; do
  if test $try = 1; then
    glib_modules=gmodule
  else
    echo "*** trying without -lgmodule"
    glib_modules=
  fi
  AM_PATH_GLIB_2_0(2.0.0,,, $glib_modules)
  if test "$GLIB_LIBS"; then
    if test $glib_modules = gmodule; then
      AC_DEFINE(HAVE_GMODULE)
      have_gmodule=yes
    fi
    break
  fi
done

if test -z "$GLIB_LIBS"; then
  echo
  echo "*** If you don't have GLIB, you can get it from ftp://ftp.gtk.org/pub/glib/"
  echo "*** We recommend you get the latest stable GLIB 2 version."
  echo "*** Compile and install it, and make sure pkg-config finds it,"
  echo "*** by adding the path where the .pc file is located to PKG_CONFIG_PATH"
  echo

  AC_ERROR([GLIB is required to build irssi.])
fi

LIBS="$LIBS $GLIB_LIBS"

have_openssl=no
if test "$enable_ssl" = "yes"; then
  PKG_CHECK_MODULES(SSL, openssl, :, :)
  if test "$SSL_LIBS"; then
    CFLAGS="$CFLAGS $SSL_CFLAGS"
    have_openssl=yes
  else
    AC_CHECK_LIB(ssl, SSL_read, [
      AC_CHECK_HEADERS(openssl/ssl.h openssl/err.h, [
        SSL_LIBS="-lssl -lcrypto"
        AC_SUBST(SSL_LIBS)
	have_openssl=yes
      ])
    ],, -lcrypto)
  fi
  if test "$have_openssl" = "yes"; then
    AC_DEFINE(HAVE_OPENSSL,, Build with OpenSSL support)
    LIBS="$LIBS $SSL_LIBS"
  fi
fi

dnl **
dnl ** Garbage Collector
dnl **
have_gc=no
if test "x$want_gc" = xyes; then
  AC_CHECK_LIB(gc, GC_malloc, [
    AC_CHECK_HEADER(gc/gc.h, [
      AC_DEFINE(HAVE_GC_GC_H)
      AC_DEFINE(USE_GC)
      LIBS="$LIBS -lgc"
      have_gc=yes
    ], [
      AC_CHECK_HEADER(gc.h, [
	AC_DEFINE(HAVE_GC_H)
	AC_DEFINE(USE_GC)
	LIBS="$LIBS -lgc"
	have_gc=yes
      ])
    ])
  ])
fi

dnl **
dnl ** check if we can link dynamic libraries to modules
dnl ** also checks if libraries are built to .libs dir
dnl **

AC_MSG_CHECKING([if we can link dynamic libraries with modules])
DYNLIB_MODULES=no

dnl ** compile object file
cat > conftest.c <<EOF
#include <math.h>
int modfunc(){return (int)floor(1.2);}
EOF

./libtool --tag=CC --mode=compile $CC $CFLAGS -c conftest.c 2> /dev/null > /dev/null
if test ! -s conftest.lo; then
  AC_ERROR([error compiling test module])
fi

dnl ** link to library
./libtool --tag=CC --mode=link $CC $CFLAGS $LDFLAGS -rpath /usr/lib conftest.lo -lm -o libconftest.la > /dev/null
if test ! -s .libs/libconftest.a; then
  AC_ERROR([error, can't even find .a library])
fi

dnl ** check if dynamic linking worked
libfile=`grep '^library_names' libconftest.la|$sedpath "s/library_names='\(.*\)'.*/\1/"|$sedpath 's/.* \([[^ ]]*\)$/\1/'`
if test ! -s .libs/$libfile; then
  AC_MSG_RESULT([no, error linking test module])
else
  cat > conftest.c <<EOF
#include <gmodule.h>
main() {
GModule *m; int (*modfunc)(void);
m = g_module_open(".libs/$libfile", 0);
if (!m) g_print("error loading: %s", g_module_error());
else if (!g_module_symbol(m, "modfunc", (gpointer *) &modfunc))
  g_print("modfunc() symbol not found from module");
else if (modfunc() == 1) g_print("ok"); else g_print("wrong result?! 1 vs %d", modfunc());
return 0; }
EOF
  $CC $CFLAGS $LDFLAGS conftest.c -o conftest $GLIB_CFLAGS $GLIB_LIBS 2> /dev/null > /dev/null
  if test ! -s conftest; then
    AC_MSG_RESULT([no, error compiling test program])
  else
    status="`./conftest`"
    if test "x$status" = "xok"; then
      DYNLIB_MODULES=yes
      AC_MSG_RESULT([yes])
    else
      AC_MSG_RESULT([no, error running: $status])
    fi
  fi
fi
rm -rf conftest conftest.* libconftest.* .libs

dnl **
dnl ** curses checks
dnl **

if test "x$want_textui" = "xyes"; then
	AC_CHECK_CURSES

	TEXTUI_LIBS="$CURSES_LIBS"
	if test "x$has_curses" = "xtrue"; then
		old_libs=$LIBS
		LIBS="$LIBS $CURSES_LIBS"
		if test $want_terminfo = no; then
			AC_CHECK_FUNC(use_default_colors, AC_DEFINE(HAVE_NCURSES_USE_DEFAULT_COLORS))
			AC_CHECK_FUNC(idcok, AC_DEFINE(HAVE_CURSES_IDCOK))
			AC_CHECK_FUNC(resizeterm, AC_DEFINE(HAVE_CURSES_RESIZETERM))
			AC_CHECK_FUNC(wresize, AC_DEFINE(HAVE_CURSES_WRESIZE))
		fi
		AC_CHECK_FUNC(setupterm,, [
		       	want_termcap=yes
		])
		LIBS=$old_libs
	else
		AC_CHECK_LIB(tinfo, setupterm, [
		  TEXTUI_LIBS="-ltinfo"
		  want_terminfo=yes
		], AC_CHECK_LIB(termlib, tgetent, [
		  TEXTUI_LIBS="-ltermlib"
		  want_termcap=yes
		], AC_CHECK_LIB(termcap, tgetent, [
		  TEXTUI_LIBS="-ltermcap"
		  want_termcap=yes
		], [
		  AC_ERROR(Terminfo/termcap not found - install ncurses-devel package)
		  want_textui=no
		])))
        fi
	AC_SUBST(TEXTUI_LIBS)

       	if test "x$want_termcap" = "xyes"; then
       		AC_CHECK_FUNC(tparm,, need_tparm=yes)
	else
		AC_DEFINE(HAVE_TERMINFO)
       	fi
fi

dnl **
dnl ** perl checks
dnl **

if test "$want_perl" != "no"; then
	AC_MSG_CHECKING(for working Perl support)

	if test -z "$perlpath"; then
       		perl_check_error="perl binary not found"
	else
		PERL_CFLAGS=`$perlpath -MExtUtils::Embed -e ccopts 2>/dev/null`
	fi

	if test "x$ac_cv_prog_gcc" = "xyes" -a -z "`echo $host_os|grep 'bsd\|linux'`"; then
		dnl * several systems have Perl compiled with native compiler
		dnl * but irssi is being compiled with GCC. Here we try to
		dnl * fix those command line options a bit so GCC won't
		dnl * complain about them. Normally there's only few options
		dnl * that we want to keep:
		dnl * -Ddefine -Uundef -I/path -fopt -mopt
		PERL_CFLAGS=`echo $PERL_CFLAGS | $perlpath -pe 's/^(.* )?-[^DUIfm][^ ]+/\1/g; s/^(.* )?\+[^ ]+/\1/g'`

		PERL_EXTRA_OPTS="CCCDLFLAGS=\"-fPIC\""
		AC_SUBST(PERL_EXTRA_OPTS)
	fi

	if test -z "$PERL_CFLAGS"; then
		if test -n "$perl_check_error"; then
			perl_check_error="Error getting perl CFLAGS"
		fi
		AC_MSG_RESULT([not found, building without Perl])
		want_perl=no
	else
		PERL_LDFLAGS=`$perlpath -MExtUtils::Embed -e ldopts 2>/dev/null`

		dnl * Perl 5.004 and older use perl_xxx variables while
		dnl * later use PL_perl_xxx variables ..
		have_pl_perl=`$perlpath -e 'print $] < 5.005 ? "no" : "yes";'`
                if test "x$have_pl_perl" = "xyes"; then
			AC_DEFINE(HAVE_PL_PERL)
		fi

		if test "x$DYNLIB_MODULES" = "xno" -a "$want_perl" != "static"; then
			dnl * wanted perl as module, won't get it.
			want_perl=static
			perl_mod_error="Dynamic library dependencies don't work with modules"
		fi

		if test "$want_perl" != "static"; then
			dnl * dynaloader.a -> libperl_dynaloader.la
			DYNALOADER_A=`echo $PERL_LDFLAGS | $perlpath -pe 's/^(.* )*([[^ ]]*DynaLoader\.a).*/\2/'`
		fi

		dnl * don't check libperl.a if dynaloader.a wasn't found..
		if test -n "$DYNALOADER_A"; then
			dnl * find either libperl.a or libperl.so
			LIBPERL_A=`echo "$PERL_LDFLAGS -L/usr/lib"|$perlpath -e 'foreach (split(/ /, <STDIN>)) { if (/^-L(.*)/) { my $dir=$1; if (\`ls $dir/libperl.so* 2>/dev/null\`) { print "-lperl"; last; }; if (-e "$dir/libperl.a") { print "$dir/libperl.a"; last } } };'`
			if test -z "$LIBPERL_A"; then
				perl_mod_error="Didn't find location of -lperl"
				DYNALOADER_A=
			elif test "$LIBPERL_A" = "-lperl"; then
				LIBPERL_A=
			fi
		fi

		dnl * remove all database stuffs
		dnl * nsl is already in ldflags
		dnl * libc is of course linked without needing -lc
		dnl * -rdynamic must not be in LIBADD line
		for word in -ldb -ldbm -lndbm -lgdbm -lc -rdynamic; do
		  PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath -e "s/$word //" -e "s/$word$//"`
		done

		case "$host_os" in
		  linux*)
		    PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath -e 's/-lposix //' -e 's/-lposix$//'`
		    ;;
		  hpux*)
		    if test "x$ac_cv_prog_gcc" = "xyes"; then
		      PERL_CFLAGS=`echo $PERL_CFLAGS | $sedpath -e 's/-Ae //' -e 's/-Ae$//'`
		      PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath -e 's/-Ae //' -e 's/-Ae$//'`
		    fi
		    ;;
		  *)
		    ;;
		esac

		dnl * check that perl's ldflags actually work
		echo "main(){perl_alloc(); return 0;}" > conftest.c
		$CC $CFLAGS conftest.c -o conftest $LDFLAGS $PERL_LDFLAGS 2> perl.error.tmp > /dev/null
		if test ! -s conftest -a "x$ignore_perl_errors" = "x"; then
			perl_check_error="Error linking with perl libraries: $PERL_LDFLAGS: `cat perl.error.tmp`"
			AC_MSG_RESULT([error linking with perl libraries, building without Perl])
			want_perl=no
		fi

		rm -f perl.error.tmp
	fi

	if test "x$want_perl" != "xno"; then
		if test "x$want_perl" = "xstatic"; then
			AC_MSG_RESULT(ok)
		elif test -z "$DYNALOADER_A"; then
			AC_MSG_RESULT([error parsing ldopts, building Perl into irssi binary instead of as module])
			want_perl=static
		else
			AC_MSG_RESULT(ok)
			PERL_LDFLAGS=`echo $PERL_LDFLAGS | $perlpath -pe 's/^(.* )*[[^ ]]*DynaLoader\.a/\1libperl_dynaloader.la/'`
			if test -n "$LIBPERL_A"; then
				PERL_LDFLAGS=`echo $PERL_LDFLAGS | $sedpath -e 's/-lperl /libperl_orig.la /' -e 's/-lperl$/libperl_orig.la$/'`
			fi
			AC_SUBST(LIBPERL_A)
			AC_SUBST(DYNALOADER_A)
		fi

		if test "x$want_perl" = "xstatic"; then
			dnl * building with static perl support
			dnl * all PERL_LDFLAGS linking is done in fe-text
			PERL_LINK_FLAGS="$PERL_LDFLAGS"
			PERL_LINK_LIBS="../perl/libperl_core_static.la"
			PERL_FE_LINK_LIBS="../perl/libfe_perl_static.la"
			PERL_LDFLAGS=
			AC_DEFINE(HAVE_STATIC_PERL)

			dnl * build only static library of perl module
			perl_module_lib=
			perl_module_fe_lib=
			perl_static_lib=libperl_core_static.la
			perl_static_fe_lib=libfe_perl_static.la
			PERL_LIBTOOL='$(SHELL) $(top_builddir)/libtool'
		else
			dnl * build dynamic library of perl module
			perl_module_lib=libperl_core.la
			perl_module_fe_lib=libfe_perl.la
			perl_static_lib=
			perl_static_fe_lib=
			PERL_LIBTOOL='$(SHELL) $(top_builddir)/libtool'
		fi

		if test "x$want_staticperllib" = "xyes"; then
			PERL_MM_PARAMS="$PERL_MM_PARAMS LINKTYPE=static"
			PERL_LINK_LIBS="$PERL_LINK_LIBS ../perl/common/blib/arch/auto/Irssi/Irssi.a ../perl/irc/blib/arch/auto/Irssi/Irc/Irc.a ../perl/ui/blib/arch/auto/Irssi/UI/UI.a ../perl/textui/blib/arch/auto/Irssi/TextUI/TextUI.a"
			PERL_STATIC_LIBS=1
		else
			PERL_STATIC_LIBS=0
		fi

		# figure out the correct @INC path - we'll need to do this
		# through MakeMaker since it's difficult to get it right
		# otherwise.
		if test "x$perl_set_use_lib" = "xyes"; then
			perl -e 'use ExtUtils::MakeMaker; WriteMakefile("NAME" => "test", "MAKEFILE" => "Makefile.test");' $PERL_MM_PARAMS >/dev/null
			PERL_USE_LIB=`perl -e 'open(F, "Makefile.test"); while (<F>) { chomp; if (/^(\w+) = (.*$)/) { $keys{$1} = $2; } }; $key = $keys{INSTALLARCHLIB}; while ($key =~ /\\$\((\w+)\)/) { $value = $keys{$1}; $key =~ s/\\$\($1\)/$value/; }; print $key;'`
			rm -f Makefile.test
		fi

		AC_SUBST(perl_module_lib)
		AC_SUBST(perl_static_lib)
		AC_SUBST(perl_module_fe_lib)
		AC_SUBST(perl_static_fe_lib)
		AC_SUBST(PERL_LIBTOOL)

		AC_SUBST(PERL_LINK_FLAGS)
		AC_SUBST(PERL_LINK_LIBS)
                AC_SUBST(PERL_FE_LINK_LIBS)

		AC_SUBST(PERL_LDFLAGS)
		AC_SUBST(PERL_CFLAGS)

		AC_SUBST(PERL_USE_LIB)
		AC_SUBST(PERL_MM_PARAMS)
		AC_SUBST(PERL_STATIC_LIBS)
	fi
fi

dnl ** check what we want to build
AM_CONDITIONAL(BUILD_TEXTUI, test "$want_textui" = "yes")
AM_CONDITIONAL(BUILD_IRSSIBOT, test "$want_irssibot" = "yes")
AM_CONDITIONAL(BUILD_IRSSIPROXY, test "$want_irssiproxy" = "yes")
AM_CONDITIONAL(HAVE_PERL, test "$want_perl" != "no")
AM_CONDITIONAL(HAVE_STATIC_PERL, test "$want_perl" = "static")
AM_CONDITIONAL(NEED_TPARM, test "$need_tparm" = "yes")
AM_CONDITIONAL(USE_CURSES, test "$want_terminfo" != "yes" -a "$want_termcap" != "yes")

# move LIBS to PROG_LIBS so they're not tried to be used when linking eg. perl libraries
PROG_LIBS=$LIBS
LIBS=
AC_SUBST(PROG_LIBS)

dnl **
dnl ** Keep all the libraries here so each frontend doesn't need to
dnl ** keep track of them all
dnl **
dnl ** (these could be made configurable)

CHAT_MODULES="irc"
irc_MODULES="dcc flood notifylist"
if test -n "$build_modules"; then
	irc_MODULES="$irc_MODULES $build_modules"
fi

dnl ****************************************

AC_SUBST(CHAT_MODULES)
AC_SUBST(irc_MODULES)

CORE_LIBS="../core/libcore.a ../lib-config/libirssi_config.a ../lib-popt/libpopt.a"
FE_COMMON_LIBS=""

CHAT_LIBS=""
for c in $CHAT_MODULES; do
	module_inits=""
	module_deinits=""
	fe_module_inits=""
	fe_module_deinits=""
	CHAT_LIBS="$CHAT_LIBS ../$c/lib$c.a ../$c/core/lib${c}_core.a"
	if test -f $srcdir/src/fe-common/$c/module.h; then
		FE_COMMON_LIBS="$FE_COMMON_LIBS../fe-common/$c/libfe_common_$c.a "
	fi
	for s in `eval echo \\$${c}_MODULES`; do
		CHAT_LIBS="$CHAT_LIBS ../$c/$s/lib${c}_$s.a"
		module_inits="$module_inits ${c}_${s}_init();"
		module_deinits="${c}_${s}_deinit(); $module_deinits"
		if test -f $srcdir/src/fe-common/$c/$s/module.h; then
			FE_COMMON_LIBS="$FE_COMMON_LIBS../fe-common/$c/$s/libfe_${c}_$s.a "
			fe_module_inits="$fe_module_inits fe_${c}_${s}_init();"
			fe_module_deinits="fe_${c}_${s}_deinit(); $fe_module_deinits"
		fi
	done

	mkdir -p src/$c
	file="src/$c/$c.c"
        echo "/* this file is automatically generated by configure - don't change */" > $file
	echo "void ${c}_core_init(void); void ${c}_core_deinit(void);" >> $file
	if test -n "$module_inits"; then
        	echo "$module_inits" | $sedpath -e 's/()/(void)/g' -e 's/ /void /g' >> $file
        	echo "$module_deinits" | $sedpath -e 's/ *$//' -e 's/()/(void)/g' -e 's/ /void /g' -e 's/^/void /' >> $file
	fi
        echo "void ${c}_init(void) { ${c}_core_init(); $module_inits }" >> $file
        echo "void ${c}_deinit(void) { $module_deinits ${c}_core_deinit(); }" >> $file

	if test -f $srcdir/src/fe-common/$c/module.h; then
		mkdir -p src/fe-common/$c
	        file="src/fe-common/$c/${c}-modules.c"
	        echo "/* this file is automatically generated by configure - don't change */" > $file
                if test -n "$fe_module_inits"; then
		        echo "$fe_module_inits" | $sedpath -e 's/()/(void)/g' -e 's/ /void /g' >> $file
		        echo "$fe_module_deinits" | $sedpath -e 's/ *$//' -e 's/()/(void)/g' -e 's/ /void /g' -e 's/^/void /' >> $file
		fi
	        echo "void fe_${c}_modules_init(void) { $fe_module_inits }" >> $file
	        echo "void fe_${c}_modules_deinit(void) { $fe_module_deinits }" >> $file
	fi
done

FE_COMMON_LIBS="$FE_COMMON_LIBS../fe-common/core/libfe_common_core.a"

dnl ** common libraries needed by frontends
COMMON_NOUI_LIBS="$CHAT_LIBS $CORE_LIBS"
COMMON_LIBS="$FE_COMMON_LIBS $COMMON_NOUI_LIBS"
AC_SUBST(COMMON_NOUI_LIBS)
AC_SUBST(COMMON_LIBS)

dnl **
dnl ** IPv6 support
dnl **

have_ipv6=no
if test "x$want_ipv6" = "xyes"; then
	AC_MSG_CHECKING([for IPv6])
	AC_CACHE_VAL(irssi_cv_type_in6_addr,
	[AC_TRY_COMPILE([
	#include <sys/types.h>
	#include <sys/socket.h>
	#include <netinet/in.h>
	#include <netdb.h>
	#include <arpa/inet.h>],
	[struct in6_addr i;],
	have_ipv6=yes,
	)])
	if test $have_ipv6 = yes; then
		AC_DEFINE(HAVE_IPV6)
	fi
	AC_MSG_RESULT($have_ipv6)
fi

dnl **
dnl ** IRSSI_VERSION_DATE and IRSSI_VERSION_TIME
dnl **
VERSION_DATE=`head -n 2 $srcdir/ChangeLog| grep '^r' | awk '{print $5}' | tr -d '-'`
VERSION_TIME=`head -n 2 $srcdir/ChangeLog| grep '^r' | awk '{print $6}' | awk -F: '{printf "%d\n", $1$2}'`
AC_SUBST(VERSION_DATE)
AC_SUBST(VERSION_TIME)

AC_CONFIG_FILES([
Makefile
src/Makefile
src/core/Makefile
src/irc/Makefile
src/irc/core/Makefile
src/irc/dcc/Makefile
src/irc/notifylist/Makefile
src/irc/proxy/Makefile
src/irc/flood/Makefile
src/fe-common/Makefile
src/fe-common/core/Makefile
src/fe-common/irc/Makefile
src/fe-common/irc/dcc/Makefile
src/fe-common/irc/notifylist/Makefile
src/fe-none/Makefile
src/fe-text/Makefile
src/lib-config/Makefile
src/lib-popt/Makefile
src/perl/Makefile
src/perl/common/Makefile.PL
src/perl/irc/Makefile.PL
src/perl/ui/Makefile.PL
src/perl/textui/Makefile.PL
scripts/Makefile
scripts/examples/Makefile
docs/Makefile
docs/help/Makefile
docs/help/in/Makefile
irssi-version.h
irssi.spec
])

AC_OUTPUT

dnl ** for building from objdir
old_dir=`pwd` && cd $srcdir && whole_dir=`pwd` && cd $old_dir
if test "x$old_dir" != "x$whole_dir"; then
	if test "x$want_perl" != "xno"; then
		subdirfiles=""
		for i in $whole_dir/src/perl/common $whole_dir/src/perl/irc $whole_dir/src/perl/ui $whole_dir/src/perl/textui; do
			subdirfiles=`echo $subdirfiles $i/typemap $i/module.h $i/*.pm $i/*.xs`
		done
		for file in $whole_dir/src/perl/*.[[ch]] $whole_dir/src/perl/libperl_orig.la $whole_dir/src/perl/libperl_dynaloader.la $subdirfiles; do
			link=`echo $file|$sedpath "s?$whole_dir/??"`
			rm -f $link
			$LN_S $file $link
		done
	fi
fi

echo

if test "x$want_textui" = "xno"; then
	text=no
elif test "x$want_termcap" = "xyes"; then
	text="yes, using termcap"
elif test "x$want_terminfo" = "xyes"; then
	text="yes, using terminfo"
else
	text="yes, using curses"
fi
echo "Building text frontend ........... : $text"
echo "Building irssi bot ............... : $want_irssibot"
echo "Building irssi proxy ............. : $want_irssiproxy"
if test "x$have_gmodule" = "xyes"; then
	echo "Building with module support ..... : yes"
else
	echo "Building with module support : NO!! /LOAD will not work!"
	echo " - You're missing gmodule (comes with glib) for some reason,"
	echo "   or it doesn't work in your system."
fi

if test "x$want_perl" = "xstatic"; then
	echo "Building with Perl support ....... : static (in irssi binary)"
elif test "x$want_perl" = "xmodule"; then
	echo "Building with Perl support ....... : module"
else
	if test -z "$perl_check_error"; then
		echo "Building with Perl support ....... : no"
	else
		echo "Building with Perl support ....... : NO!"
		echo " - $perl_check_error"
	fi
fi

if test "x$want_perl" != "xno" -a "x$perl_mod_error" != "x"; then
	echo " - NOTE: Perl support will be compiled statically to irssi, not as"
	echo "   a module as requested. Reason:"
	echo "   $perl_mod_error"

	if test -f /etc/debian_version; then
		echo " - Try: apt-get install libperl-dev"
	fi
fi

if test "x$want_perl" != "xno"; then
	if test "$perl_library_dir" = "PERL_USE_LIB"; then
		perl_library_dir=$PERL_USE_LIB
	fi
	if test -z "$perl_library_dir"; then
		perl_library_dir="(site default - `$perlpath -e 'use Config; print $Config{sitearch}'`)"
	fi
       	echo "Perl library directory ........... : $perl_library_dir"
	if test "x$perl_prefix_note" = "xyes"; then
		echo "  - NOTE: This was automatically set to the same directory you gave with"
		echo "  --prefix. If you want the perl libraries to install to their 'correct'"
		echo "  path, you'll need to give --with-perl-lib=site option to configure."
		echo "  Anyway, installing perl to this directory should work just as well."
	fi
fi
echo "Install prefix ................... : $prefix"

echo

echo "Building with IPv6 support ....... : $have_ipv6"
echo "Building with SSL support ........ : $have_openssl"
echo "Building with 64bit DCC support .. : $offt_64bit"
echo "Building with garbage collector .. : $have_gc"

echo
echo "If there are any problems, read the INSTALL file."