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finit/configure.ac
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Joachim Wiberg 57c97d8190 Fix #224: support for cmdline -- finit.fstab=/etc/fstab.secondary 
This adds support for bringing up the system with an alternate fstab at
boot.  E.g., when using a primary/secondary setup for boot partitions.

By default /etc/fstab is read, like before, this can now be changed
using configure --with-fstab=/path/to/fstab.primary, which sets the
default that can be overridden using finit.fstab=/etc/fstab.secondary

If mounting, or fsck, fails in any way, Finit calls its own bundled
sulogin, or the system sulogin(8), to let the user handle the issue.
If there is no sulogin available, Finit will try to start up in its
rescue.conf boot mode.

Please note, in either of these rescue modes, use `reboot -f` to get the
system to reboot.  Finit is on pause in the background in rescue mode
and cannot be relied on (since there may not be any writable filesystems
available.).

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
2022-04-25 21:44:33 +02:00

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AC_INIT(Finit, 4.3-rc1, https://github.com/troglobit/finit/issues, finit, https://troglobit.com/finit.html)
AC_CONFIG_AUX_DIR(aux)
AM_INIT_AUTOMAKE([1.11 foreign dist-xz subdir-objects])
AM_SILENT_RULES([yes])
AC_CONFIG_SRCDIR([src/finit.c])
AC_CONFIG_HEADER([config.h])
AC_CONFIG_FILES([Makefile
contrib/Makefile
contrib/alpine/Makefile contrib/alpine/finit.d/Makefile contrib/alpine/finit.d/available/Makefile
contrib/debian/Makefile contrib/debian/finit.d/Makefile contrib/debian/finit.d/available/Makefile
contrib/void/Makefile contrib/void/finit.d/Makefile contrib/void/finit.d/available/Makefile
doc/Makefile
man/Makefile
plugins/Makefile
src/Makefile
test/test.env test/Makefile
test/tenv/Makefile test/common/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])
# 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
AC_PROG_MKDIR_P
# Configuration.
AC_HEADER_STDC
AC_CHECK_HEADERS([termios.h sys/ioctl.h mntent.h])
AC_CHECK_FUNCS([strstr getopt getmntent])
# Check for uint[8,16,32]_t
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
# Check for pkg-config first, warn if it's not installed
PKG_PROG_PKG_CONFIG
# Check for required libraries
PKG_CHECK_MODULES([uev], [libuev >= 2.2.0])
PKG_CHECK_MODULES([lite], [libite >= 2.2.0])
# Check for configured Finit features
AC_ARG_ENABLE(auto_reload,
AS_HELP_STRING([--enable-auto-reload], [Automatic reload on any .conf change]),,[
enable_auto_reload=no])
AC_ARG_ENABLE(kernel_cmdline,
AS_HELP_STRING([--enable-kernel-cmdline], [Parse init args from /proc/cmdline (don't use!)]),,[
enable_kernel_cmdline=no])
AC_ARG_ENABLE(fastboot,
AS_HELP_STRING([--enable-fastboot], [Skip fsck check on filesystems listed in /etc/fstab]),,[
enable_fastboot=no])
AC_ARG_ENABLE(fsckfix,
AS_HELP_STRING([--enable-fsckfix], [Run fsck fix mode (options: -yf) on filesystems listed in /etc/fstab]),,[
enable_fsckfix=no])
AC_ARG_ENABLE(redirect,
AS_HELP_STRING([--disable-redirect], [Disable redirection of service output to /dev/null]),,[
enable_redirect=yes])
AC_ARG_ENABLE(logrotate,
AS_HELP_STRING([--disable-logrotate], [Disable built-in rotation of /var/log/wtmp, default enabled]),,[
enable_logrotate=yes])
AC_ARG_ENABLE(doc,
AS_HELP_STRING([--disable-doc], [Disable build and install of doc/ section]),,[
enable_doc=yes])
AC_ARG_ENABLE(contrib,
AS_HELP_STRING([--disable-contrib], [Disable build and install of contrib section]),,[
enable_contrib=yes])
# 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([modules-load], [no], [Scans /etc/modules-load.d for modules to load])
AC_PLUGIN([modprobe], [yes], [Coldplug modules using modalias magic])
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.])
AC_PLUGIN([hotplug], [yes], [Setup and start udev or mdev hotplug daemon])
AC_PLUGIN([rtc], [yes], [Save and restore RTC using hwclock])
AC_PLUGIN([tty], [yes], [Automatically activate new TTYs, e.g. USB-to-serial])
AC_PLUGIN([urandom], [yes], [Setup and save random seed at boot/shutdown])
# Check for extra arguments or packages
AC_ARG_WITH(fstab,
AS_HELP_STRING([--with-fstab=FILE], [System default fstab, default $sysconfdir/fstab]),
[fstab=$withval], [fstab=yes])
AC_ARG_WITH(heading,
AS_HELP_STRING([--with-heading=GREET], [Heading for boot progress. Default: PRETTY_NAME from /etc/os-release, fallback to "Finit vX.YY"]),
[heading=$withval], [heading=yes])
AC_ARG_WITH(config,
AS_HELP_STRING([--with-config=CONFIG], [Finit bootstrap config file, default /etc/finit.conf]),
[conf=$withval], [conf=yes])
AC_ARG_WITH(rcsd,
AS_HELP_STRING([--with-rcsd=DIR], [Finit rcS.d/ directory, default /etc/finit.d]),
[rcsd=$withval], [rcsd=yes])
AC_ARG_WITH(rc-local,
AS_HELP_STRING([--with-rc-local=FILE], [SysV init /etc/rc.local file, default /etc/rc.local]),
[rclocal=$withval], [rclocal=yes])
AC_ARG_WITH(sysconfig,
AS_HELP_STRING([--with-sysconfig=DIR], [System environment directory, sourced by .conf files, default /etc/default & /etc/conf.d]),
[sysconfig=$withval], [sysconfig=default])
AC_ARG_WITH(group,
AS_HELP_STRING([--with-group=NAME], [Group for /run/finit/socket (initctl), default: root]),
[group=$withval], [group=root])
AC_ARG_WITH(hostname,
AS_HELP_STRING([--with-hostname=NAME], [If /etc/hostname is missing, default: noname]),
[hostname=$withval], [hostname=yes])
AC_ARG_WITH(runlevel,
AS_HELP_STRING([--with-runlevel=N], [Runlevel to switch to after bootstrap, default: 2]),
[runlevel=$withval], [runlevel=yes])
AC_ARG_WITH(random-seed,
AS_HELP_STRING([--with-random-seed=FILE], [Save a random seed for /dev/urandom across reboots, default /var/lib/misc/random-seed]),
[random_seed=$withval], [random_seed=yes])
AC_ARG_WITH(keventd,
AS_HELP_STRING([--with-keventd], [Enable built-in keventd, default: no]),, [with_keventd=no])
AC_ARG_WITH(watchdog,
AS_HELP_STRING([--with-watchdog=[DEV]], [Enable built-in watchdog, default: /dev/watchdog]),
[watchdog=$withval], [with_watchdog=no watchdog=])
### Enable features ###########################################################################
# Create config.h from selected features and fallback defaults
AS_IF([test "x$enable_auto_reload" = "xyes"], [
AC_DEFINE(AUTO_RELOAD, 1, [Finit automatically does `initctl reload` on any .conf change])])
AS_IF([test "x$enable_kernel_cmdline" = "xyes"], [
AC_DEFINE(KERNEL_CMDLINE, 1, [Dumpster diving after init args from /proc/cmdline])])
AS_IF([test "x$enable_fastboot" = "xyes"], [
AC_DEFINE(FAST_BOOT, 1, [Skip fsck check on filesystems listed in /etc/fstab])])
AS_IF([test "x$enable_fsckfix" = "xyes"], [
AC_DEFINE(FSCK_FIX, 1, [Run fsck fix mode (options: -yf) on filesystems listed in /etc/fstab])])
AS_IF([test "x$enable_redirect" = "xyes"], [
AC_DEFINE(REDIRECT_OUTPUT, 1, [Enable redirection of service output to /dev/null])])
### Disable features ###########################################################################
AS_IF([test "x$enable_logrotate" != "xno"], [
AC_DEFINE(LOGROTATE_ENABLED, 1, [Enable built-in rotation of /var/log/wtmp et al.])])
AM_CONDITIONAL(LOGROTATE, [test "x$enable_logrotate" = "xyes"])
### With features ##############################################################################
AS_IF([test "x$with_fstab" != "xno"], [
AS_IF([test "x$fstab" = "xyes"], [fstab=$sysconfdir/fstab])
AC_EXPAND_DIR(fstab_path, "$fstab")
AC_DEFINE_UNQUOTED(FINIT_FSTAB, "$fstab_path", [Built-in default: /etc/fstab])],[
AC_DEFINE_UNQUOTED(FINIT_FSTAB, NULL, [No built-in default fstab])])
AS_IF([test "x$with_config" != "xno"], [
AS_IF([test "x$conf" = "xyes"], [
conf=$sysconfdir/finit.conf])])
AC_EXPAND_DIR(conf_path, "$conf")
AC_DEFINE_UNQUOTED(FINIT_CONF, "$conf_path", [Main Finit configuration file, default /etc/finit.conf])
AC_SUBST(FINIT_CONF, "$conf_path")
AS_IF([test "x$with_rcsd" != "xno"], [
AS_IF([test "x$rcsd" = "xyes"], [
rcsd=$sysconfdir/finit.d])])
AC_EXPAND_DIR(rcsd_path, "$rcsd")
AC_DEFINE_UNQUOTED(FINIT_RCSD, "$rcsd_path", [Finit rcS.d/, default /etc/finit.d])
AC_SUBST(FINIT_RCSD, "$rcsd_path")
AS_IF([test "x$with_rc_local" != "xno"], [
AS_IF([test "x$rclocal" = "xyes"], [
rclocal=$sysconfdir/rc.local])])
AC_EXPAND_DIR(rclocal_path, "$rclocal")
AC_DEFINE_UNQUOTED(FINIT_RC_LOCAL, "$rclocal_path", [Compat SysV /etc/rc.local file to run last at boot.])
AS_IF([test "x$with_sysconfig" != "xno"], [
AS_IF([test "x$sysconfig" != "xdefault"], [
AC_EXPAND_DIR(sysconfig_path, "$sysconfig")
AC_DEFINE_UNQUOTED(FINIT_SYSCONFIG, "$sysconfig_path",
[System environment, default /etc/default & /etc/conf.d])])])
AS_IF([test "x$with_heading" != "xno"], [
AS_IF([test "x$heading" = "xyes"], [heading=""])
AC_DEFINE_UNQUOTED(INIT_OSHEADING, "$heading", [Displayed by Finit at boot, defaults to /etc/os-release PRETTY_NAME])])
AS_IF([test "x$with_group" != "xno"], [
AS_IF([test "x$group" = "xyes"], [
group=root])])
AC_DEFINE_UNQUOTED(DEFGROUP, "$group", [For /run/finit/socket])
AS_IF([test "x$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"], [
runlevel=2
AC_DEFINE_UNQUOTED(RUNLEVEL, $runlevel, [Default runlevel to start after S])])
AC_DEFINE_UNQUOTED(RUNLEVEL, $runlevel, [Runlevel to start after S])])
AS_IF([test "x$with_random_seed" != "xno"], [
AS_IF([test "x$random_seed" = "xyes"], [
random_seed=/var/lib/misc/random-seed])
AC_EXPAND_DIR(random_path, "$random_seed")
AC_DEFINE_UNQUOTED(RANDOMSEED, "$random_path", [Improve random at boot by seeding it with sth from before.])])
AS_IF([test "x$with_keventd" != "xno"], [with_keventd=yes])
AS_IF([test "x$with_watchdog" != "xno"], [
AS_IF([test "x$watchdog" = "xyes"], [
watchdog=/dev/watchdog])
with_watchdog=yes
AC_DEFINE_UNQUOTED(WDT_DEVNODE, "$watchdog", [Built-in watchdog device node])], [
watchdog=])
# Control build with automake flags
AM_CONDITIONAL(STATIC, [test "x$enable_static" = "xyes"])
AM_CONDITIONAL(KEVENTD, [test "x$with_keventd" != "xno"])
AM_CONDITIONAL(WATCHDOGD, [test "x$with_watchdog" != "xno"])
AM_CONDITIONAL(DOC, [test "x$enable_doc" = "xyes"])
AM_CONDITIONAL(CONTRIB, [test "x$enable_contrib" = "xyes"])
# Override default libdir, used for plugins and rescue.conf
pkglibdir=$libdir/finit
AC_SUBST(pkglibexecdir)
AC_EXPAND_DIR(pkglibexecdir, "$libexecdir/finit")
AC_DEFINE_UNQUOTED(FINIT_LIBPATH_, "$pkglibexecdir", [Finit libexec path])
AC_EXPAND_DIR(plugin_path, "$libdir/finit/plugins")
AC_SUBST(plugin_path)
AC_DEFINE_UNQUOTED(PLUGIN_PATH, "$plugin_path", [Finit plugin path])
AC_EXPAND_DIR(rescue_conf, "$libdir/finit/rescue.conf")
AC_DEFINE_UNQUOTED(RESCUE_CONF, "$rescue_conf", [Finit rescue mode .conf])
AC_EXPAND_DIR(sample_conf, "$libdir/finit/sample.conf")
AC_DEFINE_UNQUOTED(SAMPLE_CONF, "$sample_conf", [Finit sameple.conf for initctl create])
AS_IF([test "$heading" = ""], [heading="<DEFAULT>"])
AS_IF([test "$heading" = "no"], [heading="<NONE>"])
# Generate all files
AC_OUTPUT
cat <<EOF
------------------ Summary ------------------
$PACKAGE_NAME version $PACKAGE_VERSION
Prefix................: $prefix
Exec prefix...........: $eprefix
Sysconfdir............: `eval echo $sysconfdir`
Localstatedir.........: `eval echo $localstatedir`
Default fstab.........: `eval echo $fstab`
Finit config file.....: $conf_path
Finit config.d path...: $rcsd_path
Finit plugin path.....: $plugin_path
Compat rc.local path..: $rclocal_path
System environment....: ${sysconfig_path:-${sysconfig}}
Random seed path......: $random_path
C Compiler............: $CC $CFLAGS $CPPFLAGS $LDFLAGS $LIBS
Linker................: $LD $LLDP_LDFLAGS $LLDP_BIN_LDFLAGS $LDFLAGS $LIBS
Behavior:
Boot heading..........: $heading
Plugins...............: $plugins
Optional features:
Install doc/..........: $enable_doc
Install contrib/......: $enable_contrib
Built-in keventd......: $with_keventd
Built-in watchdogd....: $with_watchdog $watchdog
Built-in logrotate....: $enable_logrotate
Skip fsck check.......: $enable_fastboot
Run fsck fix mode.....: $enable_fsckfix
Redirect output.......: $enable_redirect
Default hostname......: $hostname
Default group.........: $group
Default runlevel......: $runlevel
------------- Compiler version --------------
$($CC --version || true)
-------------- Linker version ---------------
$($LD --version || true)
---------------------------------------------
Check the above options and compile with:
${MAKE-make}
EOF
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