[mirror_lxcfs.git] / configure.ac

AC_PREREQ([2.69])

AC_INIT([lxcfs], [4.0.9], [lxc-devel@lists.linuxcontainers.org])

# We need pkg-config
PKG_PROG_PKG_CONFIG

AC_CONFIG_SRCDIR([configure.ac])
AC_CONFIG_AUX_DIR([config])
AC_CONFIG_HEADERS([config.h])

AC_SUBST(ACLOCAL_AMFLAGS, "-I m4")
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([-Wall -Werror -Wno-portability subdir-objects])
AC_CANONICAL_HOST
AM_PROG_CC_C_O
AC_USE_SYSTEM_EXTENSIONS

# Test if we have a new enough compiler.
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#define GCC_VERSION \
	(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)

#define CLANG_VERSION \
	(__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)

#if GCC_VERSION < 40700 && CLANG_VERSION < 10000
#error Sorry, your compiler is too old - please upgrade it
#endif
	]])], [valid_compiler=yes], [valid_compiler=no])
if test "x$valid_compiler" = "xno"; then
	AC_MSG_ERROR([Sorry, your compiler is too old - please upgrade it])
fi

# libtool
LT_INIT
AC_SUBST([LIBTOOL_DEPS])

AC_CONFIG_FILES([
	Makefile
	lxcfs.spec

	config/Makefile
	config/init/Makefile
	config/init/systemd/Makefile
	config/init/systemd/lxcfs.service
	config/init/sysvinit/Makefile
	config/init/upstart/Makefile

	doc/Makefile

	share/Makefile
	share/00-lxcfs.conf
	share/lxc.mount.hook
	share/lxc.reboot.hook

	src/Makefile

	tests/Makefile ])

AC_CHECK_LIB(pthread, main)

PKG_CHECK_MODULES(FUSE, fuse3, [have_fuse3=yes], [have_fuse3=no])
if test "x$have_fuse3" = "xyes"; then
	AC_DEFINE([HAVE_FUSE3], [1], [Use fuse3])
	AC_DEFINE_UNQUOTED([FUSE_USE_VERSION], [30], [Use fuse version 30])
else
	PKG_CHECK_MODULES(FUSE, fuse, [AC_DEFINE_UNQUOTED([FUSE_USE_VERSION], [26], [Use fuse])])
fi

AC_PATH_PROG(HELP2MAN, help2man, false // No help2man //)
AM_CONDITIONAL([HAVE_HELP2MAN], [test "x$HELP2MAN" != "xfalse // No help2man //" ])

AC_ARG_WITH([runtime-path],
	[AC_HELP_STRING(
		[--with-runtime-path=dir],
		[runtime directory (default: /run)]
	)], [], [with_runtime_path=['/run']])

AS_AC_EXPAND(RUNTIME_PATH, "$with_runtime_path")
AS_AC_EXPAND(LXCFSSHAREDIR, "$datarootdir/lxcfs")
AS_AC_EXPAND(LXCCONFDIR, "$datarootdir/lxc/config/common.conf.d")
AS_AC_EXPAND(LXCFSTARGETDIR, "$localstatedir/lib/lxcfs")

# Detect the distribution. This is used for the default configuration and
# for some distro-specific build options.
AC_MSG_CHECKING([host distribution])
AC_ARG_WITH(distro, AS_HELP_STRING([--with-distro=DISTRO], [Specify the Linux distribution to target: One of redhat, oracle, centos, fedora, suse, gentoo, debian, arch, slackware, paldo, openmandriva or pardus.]))
if type lsb_release >/dev/null 2>&1 && test "z$with_distro" = "z"; then
	with_distro=`lsb_release -is`
fi

if test "z$with_distro" = "z"; then
	AC_CHECK_FILE(/etc/redhat-release,with_distro="redhat")
	AC_CHECK_FILE(/etc/oracle-release,with_distro="oracle")
	AC_CHECK_FILE(/etc/centos-release,with_distro="centos")
	AC_CHECK_FILE(/etc/fedora-release,with_distro="fedora")
	AC_CHECK_FILE(/etc/SuSE-release,with_distro="suse")
	AC_CHECK_FILE(/etc/gentoo-release,with_distro="gentoo")
	AC_CHECK_FILE(/etc/debian_version,with_distro="debian")
	AC_CHECK_FILE(/etc/arch-release,with_distro="arch")
	AC_CHECK_FILE(/etc/slackware-version,with_distro="slackware")
	AC_CHECK_FILE(/etc/frugalware-release,with_distro="frugalware")
	AC_CHECK_FILE(/etc/mandrakelinux-release, with_distro="openmandriva")
	AC_CHECK_FILE(/etc/mandriva-release,with_distro="openmandriva")
	AC_CHECK_FILE(/etc/pardus-release,with_distro="pardus")
	AC_CHECK_FILE(/etc/pld-release,with_distro="pld")
fi

with_distro=`echo ${with_distro} | tr '[[:upper:]]' '[[:lower:]]'`

if test "z$with_distro" = "z"; then
	with_distro="unknown"
fi

case $with_distro in
	ubuntu)
		distroconf=default.conf.ubuntu
		;;
	redhat|centos|fedora|oracle|oracleserver|pld)
		distroconf=default.conf.libvirt
		;;
	*)
		distroconf=default.conf.unknown
		;;
esac

AC_MSG_RESULT([$with_distro])
AM_CONDITIONAL([HAVE_DEBIAN], [test x"$with_distro" = "xdebian" -o x"$with_distro" = "xubuntu"])
AM_CONDITIONAL([DISTRO_UBUNTU], [test "x$with_distro" = "xubuntu"])

# Check for init system type
AC_MSG_CHECKING([for init system type])
AC_ARG_WITH([init-script],
	    [AC_HELP_STRING([--with-init-script@<:@=TYPE@<:@,TYPE,...@:>@@:>@],
			    [Type(s) of init script to install: bsd, openrc, sysvinit, systemd, upstart,
			     distro @<:@default=distro@:>@])],[],[with_init_script=distro])
case "$with_init_script" in
	distro)
		case $with_distro in
			fedora)
				init_script=systemd
				;;
			redhat|centos|oracle|oracleserver)
				init_script=sysvinit
				;;
			debian)
				init_script=upstart,systemd,sysvinit
				;;
			ubuntu)
				init_script=upstart,systemd,sysvinit
				;;
			pld)
				init_script=systemd,sysvinit
				;;
			slackware)
				echo -n "Warning: bsd init job not yet implemented"
				init_script=
				;;
                        gentoo)
				echo -n "Warning: openrc init job not yet implemented"
				init_script=
				;;
			*)
				echo -n "Linux distribution init system unknown."
				init_script=
				;;
		esac
		;;
	*)
		init_script=$with_init_script
		;;
esac

# Check valid init systems were given, run in subshell so we don't mess up IFS
(IFS="," ; for init_sys in $init_script;
do
	case "$init_sys" in
		none|bsd|openrc|sysvinit|systemd|upstart)
			;;
		*)
			exit 1
			;;
	esac
done) || AC_MSG_ERROR([Unknown init system type in $init_script])

AM_CONDITIONAL([INIT_SCRIPT_BSD], [echo "$init_script" |grep -q "bsd"])
AM_CONDITIONAL([INIT_SCRIPT_OPENRC], [echo "$init_script" |grep -q "openrc"])
AM_CONDITIONAL([INIT_SCRIPT_SYSV], [echo "$init_script" |grep -q "sysvinit"])
AM_CONDITIONAL([INIT_SCRIPT_SYSTEMD], [echo "$init_script" |grep -q "systemd"])
AM_CONDITIONAL([INIT_SCRIPT_UPSTART], [echo "$init_script" |grep -q "upstart"])
AC_MSG_RESULT($init_script)

AC_SUBST([lxcfsdir], "${libdir}/lxcfs")

# Rootfs path, where the container mount structure is assembled
AC_ARG_WITH([rootfs-path],
	[AC_HELP_STRING(
		[--with-rootfs-path=dir],
		[lxc rootfs mount point]
	)], [], [with_rootfs_path=['${libdir}/lxc/rootfs']])

AS_AC_EXPAND(LIBDIR, "$libdir")

AC_CHECK_FUNCS([strlcpy],
	AM_CONDITIONAL(HAVE_STRLCPY, true)
	AC_DEFINE(HAVE_STRLCPY,1,[Have strlcpy]),
	AM_CONDITIONAL(HAVE_STRLCPY, false))

AC_CHECK_FUNCS([strlcat],
	AM_CONDITIONAL(HAVE_STRLCAT, true)
	AC_DEFINE(HAVE_STRLCAT,1,[Have strlcat]),
	AM_CONDITIONAL(HAVE_STRLCAT, false))

AC_CHECK_FUNCS([pidfd_open],
	AM_CONDITIONAL(HAVE_PIDFD_OPEN, true)
	AC_DEFINE(HAVE_PIDFD_OPEN,1,[Supports pidfd_open]),
	AM_CONDITIONAL(HAVE_PIDFD_OPEN, false))

AC_CHECK_FUNCS([pidfd_send_signal],
	AM_CONDITIONAL(HAVE_PIDFD_SEND_SIGNAL, true)
	AC_DEFINE(HAVE_PIDFD_SEND_SIGNAL,1,[Supports pidfd_send_signal]),
	AM_CONDITIONAL(HAVE_PIDFD_SEND_SIGNAL, false))

AX_CHECK_COMPILE_FLAG([-fdiagnostics-color], [CFLAGS="$CFLAGS -fdiagnostics-color"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough=5], [CFLAGS="$CFLAGS -Wimplicit-fallthrough=5"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wcast-align], [CFLAGS="$CFLAGS -Wcast-align"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wstrict-prototypes], [CFLAGS="$CFLAGS -Wstrict-prototypes"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [CFLAGS="$CFLAGS -fno-strict-aliasing"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-fstack-clash-protection], [CFLAGS="$CFLAGS -fstack-clash-protection"],,[-Werror])
AX_CHECK_LINK_FLAG([-fstack-protector-strong], [CFLAGS="$CFLAGS -fstack-protector-strong"],,[-Werror])
AX_CHECK_LINK_FLAG([--param=ssp-buffer-size=4], [CFLAGS="$CFLAGS --param=ssp-buffer-size=4"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-g], [CFLAGS="$CFLAGS -g"],,[-Werror])
AX_CHECK_COMPILE_FLAG([--mcet -fcf-protection], [CFLAGS="$CFLAGS --mcet -fcf-protection"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Werror=implicit-function-declaration], [CFLAGS="$CFLAGS -Werror=implicit-function-declaration"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wlogical-op], [CFLAGS="$CFLAGS -Wlogical-op"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wmissing-include-dirs], [CFLAGS="$CFLAGS -Wmissing-include-dirs"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wold-style-definition], [CFLAGS="$CFLAGS -Wold-style-definition"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Winit-self], [CFLAGS="$CFLAGS -Winit-self"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wunused-but-set-variable], [CFLAGS="$CFLAGS -Wunused-but-set-variable"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wfloat-equal], [CFLAGS="$CFLAGS -Wfloat-equal"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wsuggest-attribute=noreturn], [CFLAGS="$CFLAGS -Wsuggest-attribute=noreturn"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Werror=return-type], [CFLAGS="$CFLAGS -Werror=return-type"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Werror=incompatible-pointer-types], [CFLAGS="$CFLAGS -Werror=incompatible-pointer-types"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wformat=2], [CFLAGS="$CFLAGS -Wformat=2"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wshadow], [CFLAGS="$CFLAGS -Wshadow"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wendif-labels], [CFLAGS="$CFLAGS -Wendif-labels"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Werror=overflow], [CFLAGS="$CFLAGS -Werror=overflow"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-fdiagnostics-show-option], [CFLAGS="$CFLAGS -fdiagnostics-show-option"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Werror=shift-count-overflow], [CFLAGS="$CFLAGS -Werror=shift-count-overflow"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Werror=shift-overflow=2], [CFLAGS="$CFLAGS -Werror=shift-overflow=2"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wdate-time], [CFLAGS="$CFLAGS -Wdate-time"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-Wnested-externs], [CFLAGS="$CFLAGS -Wnested-externs"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-fasynchronous-unwind-tables], [CFLAGS="$CFLAGS -fasynchronous-unwind-tables"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-pipe], [CFLAGS="$CFLAGS -pipe"],,[-Werror])
AX_CHECK_COMPILE_FLAG([-fexceptions], [CFLAGS="$CFLAGS -fexceptions"],,[-Werror])

CFLAGS="$CFLAGS -fvisibility=hidden -Wvla -std=gnu11"
AX_CHECK_LINK_FLAG([-z relro], [LDFLAGS="$LDFLAGS -z relro"],,[])
AX_CHECK_LINK_FLAG([-z now], [LDFLAGS="$LDFLAGS -z now"],,[])

# Build with ASAN commands
AC_ARG_ENABLE([asan],
	[AS_HELP_STRING([--enable-asan], [build with address sanitizer enabled [default=no]])],
	[enable_asan=$enableval], [enable_asan=no])
AM_CONDITIONAL([ENABLE_ASAN], [test "x$enable_asan" = "xyes"])

# Build with UBSAN commands
AC_ARG_ENABLE([ubsan],
	[AS_HELP_STRING([--enable-ubsan], [build with ubsan sanitizer enabled [default=no]])],
	[enable_asan=$enableval], [enable_ubsan=no])
AM_CONDITIONAL([ENABLE_UBSAN], [test "x$enable_ubsan" = "xyes"])

AC_OUTPUT

# Configuration overview
cat << EOF

----------------------------
Environment:
 - compiler: $CC

Debugging:
 - tests: $enable_tests
 - ASAN: $enable_asan
 - mutex debugging: $enable_mutex_debugging
EOF
Commit	Line	Data
9ce186dc	1	AC_PREREQ([2.69])
38ea5f47	2
cfbad91c	3	AC_INIT([lxcfs], [4.0.9], [lxc-devel@lists.linuxcontainers.org])
38ea5f47 CB	4
	5	# We need pkg-config
	6	PKG_PROG_PKG_CONFIG
	7
	8	AC_CONFIG_SRCDIR([configure.ac])
9ce186dc CB	9	AC_CONFIG_AUX_DIR([config])
9ce186dc CB	10	AC_CONFIG_HEADERS([config.h])
2183082c	11
38ea5f47 CB	12	AC_SUBST(ACLOCAL_AMFLAGS, "-I m4")
	13	AC_CONFIG_MACRO_DIR([m4])
	14	AM_INIT_AUTOMAKE([-Wall -Werror -Wno-portability subdir-objects])
	15	AC_CANONICAL_HOST
	16	AM_PROG_CC_C_O
	17	AC_USE_SYSTEM_EXTENSIONS
	18
	19	# Test if we have a new enough compiler.
	20	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
	21	#define GCC_VERSION \
	22	(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
	23
	24	#define CLANG_VERSION \
	25	(__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
	26
	27	#if GCC_VERSION < 40700 && CLANG_VERSION < 10000
	28	#error Sorry, your compiler is too old - please upgrade it
	29	#endif
	30	]])], [valid_compiler=yes], [valid_compiler=no])
	31	if test "x$valid_compiler" = "xno"; then
	32	AC_MSG_ERROR([Sorry, your compiler is too old - please upgrade it])
	33	fi
	34
	35	# libtool
	36	LT_INIT
	37	AC_SUBST([LIBTOOL_DEPS])
df54106a	38
2183082c	39	AC_CONFIG_FILES([
c1f9bbee	40	Makefile
3cd4195e	41	lxcfs.spec
38ea5f47	42
6cb7f996 SH	43	config/Makefile
	44	config/init/Makefile
	45	config/init/systemd/Makefile
89113f7e	46	config/init/systemd/lxcfs.service
6cb7f996 SH	47	config/init/sysvinit/Makefile
6cb7f996 SH	48	config/init/upstart/Makefile
38ea5f47 CB	49
	50	doc/Makefile
	51
7456f3b5 SG	52	share/Makefile
	53	share/00-lxcfs.conf
	54	share/lxc.mount.hook
5d6df2dd	55	share/lxc.reboot.hook
38ea5f47	56
0efe589c	57	src/Makefile
2183082c	58
38ea5f47	59	tests/Makefile ])
2183082c	60
2c51f8dd SH	61	AC_CHECK_LIB(pthread, main)
2c51f8dd SH	62
7182b4ce CB	63	PKG_CHECK_MODULES(FUSE, fuse3, [have_fuse3=yes], [have_fuse3=no])
	64	if test "x$have_fuse3" = "xyes"; then
	65	AC_DEFINE([HAVE_FUSE3], [1], [Use fuse3])
	66	AC_DEFINE_UNQUOTED([FUSE_USE_VERSION], [30], [Use fuse version 30])
	67	else
	68	PKG_CHECK_MODULES(FUSE, fuse, [AC_DEFINE_UNQUOTED([FUSE_USE_VERSION], [26], [Use fuse])])
	69	fi
2183082c SH	70
2183082c SH	71	AC_PATH_PROG(HELP2MAN, help2man, false // No help2man //)
d85bd3de	72	AM_CONDITIONAL([HAVE_HELP2MAN], [test "x$HELP2MAN" != "xfalse // No help2man //" ])
2183082c	73
35482f91 SH	74	AC_ARG_WITH([runtime-path],
	75	[AC_HELP_STRING(
	76	[--with-runtime-path=dir],
	77	[runtime directory (default: /run)]
	78	)], [], [with_runtime_path=['/run']])
	79
	80	AS_AC_EXPAND(RUNTIME_PATH, "$with_runtime_path")
7456f3b5	81	AS_AC_EXPAND(LXCFSSHAREDIR, "$datarootdir/lxcfs")
b4851b56	82	AS_AC_EXPAND(LXCCONFDIR, "$datarootdir/lxc/config/common.conf.d")
7456f3b5 SG	83	AS_AC_EXPAND(LXCFSTARGETDIR, "$localstatedir/lib/lxcfs")
7456f3b5 SG	84
6cb7f996 SH	85	# Detect the distribution. This is used for the default configuration and
	86	# for some distro-specific build options.
	87	AC_MSG_CHECKING([host distribution])
	88	AC_ARG_WITH(distro, AS_HELP_STRING([--with-distro=DISTRO], [Specify the Linux distribution to target: One of redhat, oracle, centos, fedora, suse, gentoo, debian, arch, slackware, paldo, openmandriva or pardus.]))
	89	if type lsb_release >/dev/null 2>&1 && test "z$with_distro" = "z"; then
	90	with_distro=`lsb_release -is`
	91	fi
38ea5f47	92
6cb7f996 SH	93	if test "z$with_distro" = "z"; then
	94	AC_CHECK_FILE(/etc/redhat-release,with_distro="redhat")
	95	AC_CHECK_FILE(/etc/oracle-release,with_distro="oracle")
	96	AC_CHECK_FILE(/etc/centos-release,with_distro="centos")
	97	AC_CHECK_FILE(/etc/fedora-release,with_distro="fedora")
	98	AC_CHECK_FILE(/etc/SuSE-release,with_distro="suse")
	99	AC_CHECK_FILE(/etc/gentoo-release,with_distro="gentoo")
	100	AC_CHECK_FILE(/etc/debian_version,with_distro="debian")
	101	AC_CHECK_FILE(/etc/arch-release,with_distro="arch")
	102	AC_CHECK_FILE(/etc/slackware-version,with_distro="slackware")
	103	AC_CHECK_FILE(/etc/frugalware-release,with_distro="frugalware")
	104	AC_CHECK_FILE(/etc/mandrakelinux-release, with_distro="openmandriva")
	105	AC_CHECK_FILE(/etc/mandriva-release,with_distro="openmandriva")
	106	AC_CHECK_FILE(/etc/pardus-release,with_distro="pardus")
00d7fdd8	107	AC_CHECK_FILE(/etc/pld-release,with_distro="pld")
6cb7f996	108	fi
38ea5f47	109
6cb7f996 SH	110	with_distro=`echo ${with_distro} \| tr '[[:upper:]]' '[[:lower:]]'`
	111
	112	if test "z$with_distro" = "z"; then
	113	with_distro="unknown"
	114	fi
38ea5f47	115
6cb7f996 SH	116	case $with_distro in
	117	ubuntu)
	118	distroconf=default.conf.ubuntu
	119	;;
00d7fdd8	120	redhat\|centos\|fedora\|oracle\|oracleserver\|pld)
6cb7f996 SH	121	distroconf=default.conf.libvirt
	122	;;
	123	*)
	124	distroconf=default.conf.unknown
	125	;;
	126	esac
38ea5f47	127
6cb7f996 SH	128	AC_MSG_RESULT([$with_distro])
	129	AM_CONDITIONAL([HAVE_DEBIAN], [test x"$with_distro" = "xdebian" -o x"$with_distro" = "xubuntu"])
	130	AM_CONDITIONAL([DISTRO_UBUNTU], [test "x$with_distro" = "xubuntu"])
	131
	132	# Check for init system type
	133	AC_MSG_CHECKING([for init system type])
	134	AC_ARG_WITH([init-script],
	135	[AC_HELP_STRING([--with-init-script@<:@=TYPE@<:@,TYPE,...@:>@@:>@],
	136	[Type(s) of init script to install: bsd, openrc, sysvinit, systemd, upstart,
	137	distro @<:@default=distro@:>@])],[],[with_init_script=distro])
	138	case "$with_init_script" in
	139	distro)
	140	case $with_distro in
	141	fedora)
	142	init_script=systemd
	143	;;
	144	redhat\|centos\|oracle\|oracleserver)
	145	init_script=sysvinit
	146	;;
	147	debian)
ef2256ce	148	init_script=upstart,systemd,sysvinit
6cb7f996 SH	149	;;
6cb7f996 SH	150	ubuntu)
ef2256ce	151	init_script=upstart,systemd,sysvinit
6cb7f996	152	;;
00d7fdd8 ER	153	pld)
	154	init_script=systemd,sysvinit
	155	;;
6cb7f996 SH	156	slackware)
	157	echo -n "Warning: bsd init job not yet implemented"
	158	init_script=
	159	;;
	160	gentoo)
	161	echo -n "Warning: openrc init job not yet implemented"
	162	init_script=
	163	;;
	164	*)
	165	echo -n "Linux distribution init system unknown."
	166	init_script=
	167	;;
	168	esac
	169	;;
	170	*)
	171	init_script=$with_init_script
	172	;;
	173	esac
	174
	175	# Check valid init systems were given, run in subshell so we don't mess up IFS
	176	(IFS="," ; for init_sys in $init_script;
	177	do
	178	case "$init_sys" in
	179	none\|bsd\|openrc\|sysvinit\|systemd\|upstart)
	180	;;
	181	*)
	182	exit 1
	183	;;
	184	esac
	185	done) \|\| AC_MSG_ERROR([Unknown init system type in $init_script])
	186
	187	AM_CONDITIONAL([INIT_SCRIPT_BSD], [echo "$init_script" \|grep -q "bsd"])
	188	AM_CONDITIONAL([INIT_SCRIPT_OPENRC], [echo "$init_script" \|grep -q "openrc"])
	189	AM_CONDITIONAL([INIT_SCRIPT_SYSV], [echo "$init_script" \|grep -q "sysvinit"])
	190	AM_CONDITIONAL([INIT_SCRIPT_SYSTEMD], [echo "$init_script" \|grep -q "systemd"])
	191	AM_CONDITIONAL([INIT_SCRIPT_UPSTART], [echo "$init_script" \|grep -q "upstart"])
	192	AC_MSG_RESULT($init_script)
	193
369154d6	194	AC_SUBST([lxcfsdir], "${libdir}/lxcfs")
df54106a	195
237e200e SH	196	# Rootfs path, where the container mount structure is assembled
	197	AC_ARG_WITH([rootfs-path],
	198	[AC_HELP_STRING(
	199	[--with-rootfs-path=dir],
	200	[lxc rootfs mount point]
	201	)], [], [with_rootfs_path=['${libdir}/lxc/rootfs']])
	202
	203	AS_AC_EXPAND(LIBDIR, "$libdir")
	204
5fbea8a6 CB	205	AC_CHECK_FUNCS([strlcpy],
	206	AM_CONDITIONAL(HAVE_STRLCPY, true)
	207	AC_DEFINE(HAVE_STRLCPY,1,[Have strlcpy]),
	208	AM_CONDITIONAL(HAVE_STRLCPY, false))
38ea5f47	209
5fbea8a6 CB	210	AC_CHECK_FUNCS([strlcat],
	211	AM_CONDITIONAL(HAVE_STRLCAT, true)
	212	AC_DEFINE(HAVE_STRLCAT,1,[Have strlcat]),
	213	AM_CONDITIONAL(HAVE_STRLCAT, false))
	214
2aa59b2e CB	215	AC_CHECK_FUNCS([pidfd_open],
	216	AM_CONDITIONAL(HAVE_PIDFD_OPEN, true)
	217	AC_DEFINE(HAVE_PIDFD_OPEN,1,[Supports pidfd_open]),
	218	AM_CONDITIONAL(HAVE_PIDFD_OPEN, false))
	219
	220	AC_CHECK_FUNCS([pidfd_send_signal],
	221	AM_CONDITIONAL(HAVE_PIDFD_SEND_SIGNAL, true)
	222	AC_DEFINE(HAVE_PIDFD_SEND_SIGNAL,1,[Supports pidfd_send_signal]),
	223	AM_CONDITIONAL(HAVE_PIDFD_SEND_SIGNAL, false))
	224
9ce186dc CB	225	AX_CHECK_COMPILE_FLAG([-fdiagnostics-color], [CFLAGS="$CFLAGS -fdiagnostics-color"],,[-Werror])
	226	AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough=5], [CFLAGS="$CFLAGS -Wimplicit-fallthrough=5"],,[-Werror])
	227	AX_CHECK_COMPILE_FLAG([-Wcast-align], [CFLAGS="$CFLAGS -Wcast-align"],,[-Werror])
	228	AX_CHECK_COMPILE_FLAG([-Wstrict-prototypes], [CFLAGS="$CFLAGS -Wstrict-prototypes"],,[-Werror])
	229	AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [CFLAGS="$CFLAGS -fno-strict-aliasing"],,[-Werror])
	230	AX_CHECK_COMPILE_FLAG([-fstack-clash-protection], [CFLAGS="$CFLAGS -fstack-clash-protection"],,[-Werror])
	231	AX_CHECK_LINK_FLAG([-fstack-protector-strong], [CFLAGS="$CFLAGS -fstack-protector-strong"],,[-Werror])
	232	AX_CHECK_LINK_FLAG([--param=ssp-buffer-size=4], [CFLAGS="$CFLAGS --param=ssp-buffer-size=4"],,[-Werror])
	233	AX_CHECK_COMPILE_FLAG([-g], [CFLAGS="$CFLAGS -g"],,[-Werror])
	234	AX_CHECK_COMPILE_FLAG([--mcet -fcf-protection], [CFLAGS="$CFLAGS --mcet -fcf-protection"],,[-Werror])
	235	AX_CHECK_COMPILE_FLAG([-Werror=implicit-function-declaration], [CFLAGS="$CFLAGS -Werror=implicit-function-declaration"],,[-Werror])
	236	AX_CHECK_COMPILE_FLAG([-Wlogical-op], [CFLAGS="$CFLAGS -Wlogical-op"],,[-Werror])
	237	AX_CHECK_COMPILE_FLAG([-Wmissing-include-dirs], [CFLAGS="$CFLAGS -Wmissing-include-dirs"],,[-Werror])
	238	AX_CHECK_COMPILE_FLAG([-Wold-style-definition], [CFLAGS="$CFLAGS -Wold-style-definition"],,[-Werror])
	239	AX_CHECK_COMPILE_FLAG([-Winit-self], [CFLAGS="$CFLAGS -Winit-self"],,[-Werror])
	240	AX_CHECK_COMPILE_FLAG([-Wunused-but-set-variable], [CFLAGS="$CFLAGS -Wunused-but-set-variable"],,[-Werror])
	241	AX_CHECK_COMPILE_FLAG([-Wfloat-equal], [CFLAGS="$CFLAGS -Wfloat-equal"],,[-Werror])
	242	AX_CHECK_COMPILE_FLAG([-Wsuggest-attribute=noreturn], [CFLAGS="$CFLAGS -Wsuggest-attribute=noreturn"],,[-Werror])
	243	AX_CHECK_COMPILE_FLAG([-Werror=return-type], [CFLAGS="$CFLAGS -Werror=return-type"],,[-Werror])
	244	AX_CHECK_COMPILE_FLAG([-Werror=incompatible-pointer-types], [CFLAGS="$CFLAGS -Werror=incompatible-pointer-types"],,[-Werror])
	245	AX_CHECK_COMPILE_FLAG([-Wformat=2], [CFLAGS="$CFLAGS -Wformat=2"],,[-Werror])
	246	AX_CHECK_COMPILE_FLAG([-Wshadow], [CFLAGS="$CFLAGS -Wshadow"],,[-Werror])
	247	AX_CHECK_COMPILE_FLAG([-Wendif-labels], [CFLAGS="$CFLAGS -Wendif-labels"],,[-Werror])
	248	AX_CHECK_COMPILE_FLAG([-Werror=overflow], [CFLAGS="$CFLAGS -Werror=overflow"],,[-Werror])
	249	AX_CHECK_COMPILE_FLAG([-fdiagnostics-show-option], [CFLAGS="$CFLAGS -fdiagnostics-show-option"],,[-Werror])
	250	AX_CHECK_COMPILE_FLAG([-Werror=shift-count-overflow], [CFLAGS="$CFLAGS -Werror=shift-count-overflow"],,[-Werror])
	251	AX_CHECK_COMPILE_FLAG([-Werror=shift-overflow=2], [CFLAGS="$CFLAGS -Werror=shift-overflow=2"],,[-Werror])
	252	AX_CHECK_COMPILE_FLAG([-Wdate-time], [CFLAGS="$CFLAGS -Wdate-time"],,[-Werror])
	253	AX_CHECK_COMPILE_FLAG([-Wnested-externs], [CFLAGS="$CFLAGS -Wnested-externs"],,[-Werror])
	254	AX_CHECK_COMPILE_FLAG([-fasynchronous-unwind-tables], [CFLAGS="$CFLAGS -fasynchronous-unwind-tables"],,[-Werror])
	255	AX_CHECK_COMPILE_FLAG([-pipe], [CFLAGS="$CFLAGS -pipe"],,[-Werror])
	256	AX_CHECK_COMPILE_FLAG([-fexceptions], [CFLAGS="$CFLAGS -fexceptions"],,[-Werror])
	257
515f1ddf	258	CFLAGS="$CFLAGS -fvisibility=hidden -Wvla -std=gnu11"
9ce186dc CB	259	AX_CHECK_LINK_FLAG([-z relro], [LDFLAGS="$LDFLAGS -z relro"],,[])
	260	AX_CHECK_LINK_FLAG([-z now], [LDFLAGS="$LDFLAGS -z now"],,[])
	261
7eac3825 CB	262	# Build with ASAN commands
	263	AC_ARG_ENABLE([asan],
	264	[AS_HELP_STRING([--enable-asan], [build with address sanitizer enabled [default=no]])],
	265	[enable_asan=$enableval], [enable_asan=no])
	266	AM_CONDITIONAL([ENABLE_ASAN], [test "x$enable_asan" = "xyes"])
	267
	268	# Build with UBSAN commands
	269	AC_ARG_ENABLE([ubsan],
	270	[AS_HELP_STRING([--enable-ubsan], [build with ubsan sanitizer enabled [default=no]])],
	271	[enable_asan=$enableval], [enable_ubsan=no])
	272	AM_CONDITIONAL([ENABLE_UBSAN], [test "x$enable_ubsan" = "xyes"])
	273
2183082c	274	AC_OUTPUT
7eac3825 CB	275
	276	# Configuration overview
	277	cat << EOF
	278
	279	----------------------------
	280	Environment:
	281	- compiler: $CC
	282
	283	Debugging:
	284	- tests: $enable_tests
	285	- ASAN: $enable_asan
	286	- mutex debugging: $enable_mutex_debugging
	287	EOF