AC_INIT(Finit, 3.0-beta1, https://github.com/troglobit/finit/issues, finit, http://troglobit.com/finit.html)
AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz subdir-objects])
AM_SILENT_RULES([yes])

AC_CONFIG_SRCDIR([finit.c])
AC_CONFIG_HEADER([config.h])
AC_CONFIG_FILES([Makefile plugins/Makefile])

# Older versions of autoconf (<2.58) do not have AC_CONFIG_MACRO_DIR()
#m4_include([m4/plugin.m4])
#m4_include([m4/expand.m4])
AC_CONFIG_MACRO_DIR([m4])

# Change default prefix, we're PID 1 after all ...
AC_PREFIX_DEFAULT([])

# Handle building plugins either as dynamically loadable, or built-in
LT_INIT([shared disable-static dlopen aix-soname=both disable-fast-install])

# Checks for programs.
AC_PROG_CC
AC_PROG_LN_S
AC_PROG_INSTALL

# Configuration.
AC_HEADER_STDC
AC_CHECK_FUNCS(strstr getopt)

# Check for uint[8,16,32]_t
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T

# Check for required libraries
PKG_CHECK_MODULES([uev],  [libuev >= 1.4.0])
PKG_CHECK_MODULES([lite], [libite >= 1.5.0])

# Check for configured Finit features
AC_ARG_ENABLE(embedded,
        AS_HELP_STRING([--enable-embedded], [Embedded defaults, BusBox getty, mdev etc.]))

AC_ARG_ENABLE(rw-rootfs,
        AS_HELP_STRING([--enable-rw-rootfs], [Remount / as read-write at boot, not for embedded]))

AC_ARG_ENABLE(silent,
        AS_HELP_STRING([--enable-silent], [Completely silent operation, not even boot messages]))

AC_ARG_ENABLE(inetd,
        AS_HELP_STRING([--disable-inetd], [Disable built-in inetd super server, default enabled]))

AC_ARG_ENABLE(quiet,
        AS_HELP_STRING([--disable-quiet], [Disable quiet mode, default: silent after boot]))

# Check for extra plugins to enable
enable_all_plugins=auto
AC_PLUGIN([alsa-utils], [no],  [Save and restore ALSA sound settings using alsactl])
AC_PLUGIN([dbus],       [no],  [Setup and start system message bus, D-Bus])
AC_PLUGIN([inetd-echo], [no],  [Inetd plugin: echo server, RFC862])
AC_PLUGIN([inetd-time], [no],  [Inetd plugin: time (rdate) server, RFC868])
AC_PLUGIN([lost],       [no],  [Example HOOK_SVC_LOST plugin, very noisy as-is!])
AC_PLUGIN([resolvconf], [no],  [Setup necessary files for resolvconf])
AC_PLUGIN([x11-common], [no],  [Console setup (for X)])
AC_PLUGIN([netlink],    [yes], [Basic netlink plugin for IFUP/IFDN and GW events. Can be replaced with externally built plugin that links with libnl or similar.])

# Check for extra arguments or packages
AC_ARG_WITH(heading,
        AS_HELP_STRING([--with-heading=GREET], [Display GREET instead of Finit version at boot]),
	[heading=$withval], [heading='$PACKAGE_NAME v$PACKAGE_VERSION'])

AC_ARG_WITH(fifo,
        AS_HELP_STRING([--with-fifo=FIFO], [FIFO for init/telinit clients, default /dev/initctl]),
	[fifo=$withval], [fifo=/dev/initctl])

AC_ARG_WITH(plugindir,
        AS_HELP_STRING([--with-plugindir=DIR], [Finit plugin directory, default /lib/finit/plugins]),
	[pkglibdir=$withval], [pkglibdir=$libdir/finit/plugins])
AC_SUBST([pkglibdir])

AC_ARG_WITH(config,
        AS_HELP_STRING([--with-config=CONFIG], [Finit bootstrap config file, default /etc/finit.conf]),
	[conf=$withval], [conf=$sysconfdir/finit.conf])

AC_ARG_WITH(rcsd,
        AS_HELP_STRING([--with-rcsd=DIR], [Finit rcS.d/ directory, default /etc/finit.d]),
	[rcsd=$withval], [rcsd=$sysconfdir/finit.d])

AC_ARG_WITH(rc-local,
        AS_HELP_STRING([--with-rc-local=FILE], [SysV init /etc/rc.local file, default /etc/rc.local]),
	[rclocal=$withval], [rclocal=$sysconfdir/rc.local])

AC_ARG_WITH(console,
        AS_HELP_STRING([--with-console=DEV], [Console to use, default: /dev/console]),
	[console=$withval], [console=/dev/console])

AC_ARG_WITH(shell,
        AS_HELP_STRING([--with-shell=PATH], [Fallback shell to use, default: /bin/sh]),
	[shell=$withval], [shell=/bin/sh])

AC_ARG_WITH(username,
        AS_HELP_STRING([--with-username=USER], [User for 'startx' .conf option, default: root]),
	[username=$withval], [username=root])

AC_ARG_WITH(hostname,
        AS_HELP_STRING([--with-hostname=NAME], [If /etc/hostname is missing, default: noname]),
	[hostname=$withval], [hostname=noname])

AC_ARG_WITH(runlevel,
        AS_HELP_STRING([--with-runlevel=N], [Runlevel to switch to after bootstrap, default: 2]),
	[runlevel=$withval], [runlevel=2])

### Enable features ###########################################################################

# Create config.h from selected features and fallback defautls
AS_IF([test "x$enable_embedded" = "xyes"],[
	AC_DEFINE(EMBEDDED_SYSTEM, 1,                [Target an embedded system with BusyBox])
	AC_DEFINE(SETUP_DEVFS,     "/sbin/mdev -s",  [Command to populate /dev])
	AC_DEFINE(GETTY,           "/sbin/getty -L", [Command to start getty on login prompt])
        AC_DEFINE(GETTY_BUSYBOX,   1,                [Use BusyBox getty call syntax])
        AC_DEFINE(BAUDRATE,        115200,           [Default getty baudrate])
	],[
        AC_DEFINE(SETUP_DEVFS,     "/sbin/udevd --daemon", [Command to populate /dev])
	AC_DEFINE(GETTY,           "/sbin/getty -8", [Command to start getty on login prompt])
        AC_DEFINE(GETTY_AGETTY,    1,                [Use standard agetty call syntax])
        AC_DEFINE(BAUDRATE,        38400,            [Default getty baudrate])])

AS_IF([test "x$enable_rw_rootfs" = "xyes"],[
        AC_DEFINE(REMOUNT_ROOTFS,  1, [Remount / as rw at boot])])

AS_IF([test "x$enable_silent" = "xyes"],[
        AC_DEFINE(SILENT_MODE,  1, [Completely silent operation, not even boot messages])
	],[
	AC_DEFINE(SILENT_MODE,  0, [Normal output, default])])

### Disable features ###########################################################################
AS_IF([test "x$enable_inetd" != "xno"],enable_inetd="yes",[
	AC_DEFINE(INETD_DISABLED,  1, [Disable built-in inetd])])

AS_IF([test "x$enable_quiet" != "xno"],[
        AC_DEFINE(QUIET_MODE,  0, [Will print stopping/starting/etc messages at runtime])
	],[
	AC_DEFINE(QUIET_MODE,  1, [Silent at runtime, after initial boot, default])])

### With features ##############################################################################
AS_IF([test "x$with_fifo" != "xno"],[
	AS_IF([test "x$fifo" = "xyes"],[
		    fifo='/dev/initctl'])])
AC_EXPAND_DIR(lurvig, "$fifo")
AC_DEFINE_UNQUOTED(FINIT_FIFO, "$lurvig", [FIFO for old style init/telinit client programs])

AS_IF([test "x$with_config" != "xno"],[
	AS_IF([test "x$config" = "xyes"],[
		conf=$sysconfdir/finit.conf])])
AC_EXPAND_DIR(lurvig, "$conf")
AC_DEFINE_UNQUOTED(FINIT_CONF, "$lurvig", [Main Finit configuration file, default /etc/finit.conf])

AS_IF([test "x$with_rcsd" != "xno"],[
	AS_IF([test "x$rcsd" = "xyes"],[
		rcsd=$sysconfdir/finit.d])])
AC_EXPAND_DIR(lurvig, "$rcsd")
AC_DEFINE_UNQUOTED(FINIT_RCSD, "$lurvig", [Finit rcS.d/, default /etc/finit.d])

AS_IF([test "x$with_rc_local" != "xno"],[
	AS_IF([test "x$rclocal" = "xyes"],[
		rclocal=$sysconfdir/rc.local])])
AC_EXPAND_DIR(lurvig, "$rclocal")
AC_DEFINE_UNQUOTED(FINIT_RC_LOCAL, "$lurvig", [Compat SysV /etc/rc.local file to run last at boot.])

AS_IF([test "x$with_heading" != "xno"],[
	AS_IF([test "x$heading" = "xyes"],[
		heading='$PACKAGE_NAME v$PACKAGE_VERSION'])])
AC_DEFINE_UNQUOTED(INIT_HEADING, "$heading", [Displayed by Finit at boot])

AS_IF([test "x$with_console" != "xno"],[
	AS_IF([test "x$console" = "xyes"],[
		console=/dev/console])])
AC_DEFINE_UNQUOTED(CONSOLE, "$console", [Default console to use])

AS_IF([test "x$with_shell" != "xno"],[
	AS_IF([test "x$shell" = "xyes"],[
		shell=/bin/sh])])
AC_DEFINE_UNQUOTED(FALLBACK_SHELL, "$shell", [Used if no login getty])

AS_IF([test "x$with_username" != "xno"],[
	AS_IF([test "x$username" = "xyes"],[
		username=root])])
AC_DEFINE_UNQUOTED(DEFUSER, "$username", [Used for startx .conf option])

AS_IF([test "x$with_hostname" != "xno"],[
	AS_IF([test "x$hostname" = "xyes"],[
		hostname=noname])])
AC_DEFINE_UNQUOTED(DEFHOST, "$hostname", [For /etc/hostname])

AS_IF([test "x$with_runlevel" != "xno"],[
	AS_IF([test "x$runlevel" = "xyes"],[
		AC_DEFINE_UNQUOTED(RUNLEVEL, 2, [Default runlevel to start after S])])
	AC_DEFINE_UNQUOTED(RUNLEVEL, $runlevel, [Runlevel to start after S])])

# Control build with automake flags
AM_CONDITIONAL(STATIC, [test "x$enable_static" = "xyes"])
AM_CONDITIONAL(INETD, [test "x$enable_inetd" = "xyes"])

# Generate all files
AC_OUTPUT