AC_INIT(daemon/main.c)
AM_INIT_AUTOMAKE([doldaconnect], [0.3])
AM_CONFIG_HEADER(config.h)

AC_PROG_CC
AC_PROG_INSTALL

AM_GNU_GETTEXT_VERSION(0.12.1)
AM_GNU_GETTEXT([external])
AM_PROG_LIBTOOL

AC_CHECK_LIB(pam, pam_start, , AC_MSG_ERROR([*** must have PAM]))
AC_CHECK_LIB(dl, dlopen, , AC_MSG_ERROR([*** PAM requires a working dynamic loader (libdl)]))
AC_CHECK_LIB(z, deflate, , AC_MSG_ERROR([*** must have zlib]))
AC_CHECK_LIB(bz2, BZ2_bzWriteOpen, , AC_MSG_ERROR([*** must have bzlib]))
AC_CHECK_LIB(gdbm, gdbm_open, , AC_MSG_ERROR([*** must have gdbm]))

clients=
extlibs=
experimental=no

AC_CHECK_PROG([PKG_CONFIG], pkg-config, yes, no)

# Gtk 2.0 check
AC_ARG_WITH(gtk2, [  --with-gtk2             Enable GTK2 support])
if test "$with_gtk2" = no; then
	HAS_GTK2=no
fi
if test "$HAS_GTK2" != no; then
	if test "$PKG_CONFIG" = yes; then
		AC_MSG_CHECKING([for GTK2 package information])
		if pkg-config --modversion gtk+-2.0 >/dev/null 2>&1; then
			AC_MSG_RESULT(yes)
        	else
			AC_MSG_RESULT(no)
        		HAS_GTK2=no
        	fi
		if test "$HAS_GTK2" != no; then
	                AC_CHECK_LIB(gtk-x11-2.0, gtk_init, [HAS_GTK2=yes], [HAS_GTK2=no], `pkg-config --libs gtk+-2.0`)
		fi
        	if test "$HAS_GTK2" = yes; then
        		cpp_bak="$CPPFLAGS"
        		CPPFLAGS="$CPPFLAGS `pkg-config --cflags gtk+-2.0`"
        		AC_CHECK_HEADER(gtk/gtk.h, [], [HAS_GTK2=no])
        		CPPFLAGS="$cpp_bak"
        	fi
	else
		HAS_GTK2=no
        fi
fi
if test "$with_gtk2" = yes -a "$HAS_GTK2" = no; then
	AC_MSG_ERROR([*** cannot find GTK2 on this system])
fi

# libxml2 check
AC_MSG_CHECKING([for libxml2 package information])
if test "$PKG_CONFIG" = yes; then
	if pkg-config --modversion libxml-2.0 >/dev/null 2>&1; then
		AC_MSG_RESULT(yes)
	else
		AC_MSG_RESULT(no)
		HAS_LIBXML=no
	fi
	if test "$HAS_LIBXML" != no; then
		AC_CHECK_LIB(xml2, xmlReadFile, [HAS_LIBXML=yes], [HAS_LIBXML=no], `pkg-config --libs libxml-2.0`)
	fi
else
	AC_MSG_RESULT(no)
	HAS_LIBXML=no
fi

# Gtk GUI check
gtk2ui_msg=No
AC_ARG_ENABLE(gtk2ui, [  --enable-gtk2ui         Enable the GTK2 user interface])
if test "$enable_gtk2ui" = yes; then
	if test "$HAS_GTK2" = no; then
		AC_MSG_ERROR([*** cannot build the GTK2 UI without a GTK2 library])
	fi
	if test "$HAS_LIBXML" = no; then
		AC_MSG_ERROR([*** the GTK2 UI needs libxml2])
	fi
fi
if test "$enable_gtk2ui" != no -a "$HAS_GTK2" = yes; then
	clients="$clients gtk2"
	gtk2ui_msg=Yes
fi

# Gtk progress bar check
gtk2pbar_msg=No
AH_TEMPLATE(ENABLE_GTK2PBAR, [define to compile GTK2 progress bars (experimental)])
AC_ARG_ENABLE(gtk2pbar, [  --enable-gtk2pbar       Enable GTK2 progress bars (experimental)])
if test "$enable_gtk2pbar" = yes; then
	if test "$HAS_GTK2" = no; then
		AC_MSG_ERROR([*** cannot build GTK2 progress bars without GTK2])
	fi
	experimental=yes
	gtk2pbar_msg=Yes
	AC_DEFINE(ENABLE_GTK2PBAR)
fi

# Gnome applet check
gnometrapplet_msg=No
AC_ARG_ENABLE(gnomeapplet, [  --enable-gnomeapplet    Enable GNOME transfer applet (experimental)])
if test "$enable_gnomeapplet" = yes; then
	experimental=yes
	gnometrapplet_msg=Yes
	clients="$clients gnome-trans-applet"
fi

# Gaim plugin check
gaimplugin_msg=No
AC_ARG_ENABLE(gaimplugin, [  --enable-gaimplugin     Enable GNOME transfer applet (experimental)])
if test "$enable_gaimplugin" = yes; then
	experimental=yes
	gaimplugin_msg=Yes
	clients="$clients gaim"
fi

# Guile check (XXX: Shouldn't have to be enabled manually)
guile_msg=No
if test "$with_guile" = yes; then
	GUILE_FLAGS
	extlibs="$extlibs guile"
	guile_msg=Yes
fi

# Kerberos check
krb_msg=No
AH_TEMPLATE(HAVE_KRB5, [define to compile support for Kerberos 5 (not GSS-API) authentication])
AC_ARG_WITH(krb5, [  --with-krb5[=PATH]        Enable Kerberos 5 (not GSSAPI) authentication])
if test "$with_krb5" != no; then
	cpp_bak="$CPPFLAGS"
	ld_bak="$LDFLAGS"
	if test "$with_krb5" != yes; then
		CPPFLAGS="$CPPFLAGS -I${with_krb5}/include"
		LDFLAGS="$LDFLAGS -L${with_krb5}/lib"
	fi
	AC_CHECK_LIB(krb5, krb5_init_context, [HAS_KRB5=yes], [HAS_KRB5=no])
	if test "$HAS_KRB5" = yes; then
		AC_CHECK_HEADER(com_err.h, [HAS_COMERR=yes], [HAS_COMERR=no])
		if test "$HAS_COMERR" = no; then
			AC_CHECK_HEADER(et/com_err.h, [HAS_COMERR=yes; CPPFLAGS="$CPPFLAGS -I/usr/include/et"], [])
		fi
	fi
	if test "$HAS_COMERR" = no; then
		HAS_KRB5=no
	fi
	if test "$HAS_KRB5" = no; then
		CPPFLAGS="$cpp_bak"
		LDFLAGS="$ld_bak"
	fi
fi
KRB5_LDADD=
if test -n "$with_krb5" -a "$with_krb5" != no -a "$HAS_KRB5" != yes; then
	AC_MSG_ERROR([*** cannot find Kerberos 5 on this system - try passing --with-krb5=/path/to/kerberos])
fi
if test "$with_krb5" != no -a "$HAS_KRB5" = yes; then
	AC_DEFINE(HAVE_KRB5)
	KRB5_LDADD=-lkrb5
	krb_msg=Yes
fi
AC_SUBST([KRB5_LDADD])

# Misc. functions checks
AC_CHECK_FUNC(vswprintf, , AC_MSG_ERROR([*** must have vswprintf]))
AH_TEMPLATE(HAVE_WCSCASECMP, [define if your system implements wcscasecmp])
AC_CHECK_FUNC(wcscasecmp, [ AC_DEFINE(HAVE_WCSCASECMP) ])

AH_TEMPLATE(HAVE_LINUX_SOCKIOS_H, [define if you have linux/sockios.h on your system])
AC_CHECK_HEADER([linux/sockios.h], [ AC_DEFINE(HAVE_LINUX_SOCKIOS_H) ])

AH_TEMPLATE(HAVE_IPV6, [define if your system supports IPv6 and you wish to compile with support for it])
AC_CHECK_MEMBER(struct sockaddr_in6.sin6_family, [ AC_DEFINE(HAVE_IPV6) ], , [#include <netinet/in.h>])

AH_TEMPLATE(HAVE_RESOLVER, [define if your system supports the res_* functions to fetch DNS RRs])
AC_CHECK_LIB(resolv, res_query, [ AC_DEFINE(HAVE_RESOLVER)
				  LDFLAGS="$LDFLAGS -lresolv" ])
AH_TEMPLATE(HAVE_KEYUTILS, [define if your system supports the Linux keyring functions])
AC_CHECK_LIB(keyutils, keyctl_search, [ AC_DEFINE(HAVE_KEYUTILS)
					LDFLAGS="$LDFLAGS -lkeyutils" ])

AC_HEADER_STDC
AC_HEADER_DIRENT
AC_HEADER_SYS_WAIT

AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_TYPE_SIGNAL

CPPFLAGS="-I\$(top_srcdir)/include $CPPFLAGS"

AC_SUBST([clients extlibs])
AC_OUTPUT([
Makefile
autopackage/Makefile
common/Makefile
daemon/Makefile
lib/Makefile
lib/guile/Makefile
lib/guile/dolcon/Makefile
clients/Makefile
clients/gtk2/Makefile
clients/gnome-trans-applet/Makefile
clients/gaim/Makefile
include/Makefile
include/doldaconnect/Makefile
doc/Makefile
po/Makefile.in
config/Makefile
contrib/Makefile
autopackage/dolcon.apspec
autopackage/dcuilib.apspec
autopackage/dcguile.apspec
])

echo
echo "Dolda Connect has been configured with the following settings:"
echo
echo "    Kerberos 5 support:      $krb_msg"
echo "    GTK2 user interface:     $gtk2ui_msg"
echo "    GTK2 progress bars:      $gtk2pbar_msg"
echo "    Guile extension library: $guile_msg"
echo "    GNOME transfer applet:   $gnometrapplet_msg"
echo "    Gaim chat plugin:        $gaimplugin_msg"
echo

if tput bold >/dev/null 2>&1 && tty <&2 >/dev/null 2>&1; then
	hastput=y
fi
if test "$HAS_GTK2" = no -a "$with_gtk2" != no -a "$enable_gtk2ui" != no; then
	if test "$hastput" = y; then
		tput bold
		tput setf 4 2>/dev/null
	fi
	echo -n "    Warning: " >&2
	if test "$hastput" = y; then
		tput sgr0
	fi
	echo "Could not find a GTK2 development installation on this system." >&2
	echo "             That means you won't get a UI." >&2
	echo "             Make absolutely sure this is what you want!" >&2
	if test "$hastput" = y; then
		tput bel
	fi
	sleep 1
fi
if test "$experimental" = yes; then
	if test "$hastput" = y; then
		tput bold
		tput setf 4 2>/dev/null
	fi
	echo -n "    Warning: " >&2
	if test "$hastput" = y; then
		tput sgr0
	fi
	echo "You have enabled one or more experimental features!" >&2
	echo "             Please don't complain that it doesn't work, unless" >&2
	echo "             you have something constructive to add about the situation." >&2
	if test "$hastput" = y; then
		tput bel
	fi
	sleep 1
fi