[mirror_lxcfs.git] / configure.ac

AC_PREREQ([2.69])

AC_INIT([lxcfs], [4.0.5], [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, fuse, [], [
	PKG_CHECK_MODULES(FUSE, fuse3, [AC_DEFINE([HAVE_FUSE3], [1], [Use fuse3])])
])

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: $enable_mutex_debugging
EOF
Commit	Line	Data
9ce186dc	1	AC_PREREQ([2.69])
38ea5f47	2
f2f9f3a8	3	AC_INIT([lxcfs], [4.0.5], [lxc-devel@lists.linuxcontainers.org])
38ea5f47 CB	4
	5	# We need pkg-config
	6	PKG_PROG_PKG_CONFIG
	7
	8	AC_CONFIG_SRCDIR([configure.ac])
9ce186dc CB	9	AC_CONFIG_AUX_DIR([config])
9ce186dc CB	10	AC_CONFIG_HEADERS([config.h])
2183082c	11
38ea5f47 CB	12	AC_SUBST(ACLOCAL_AMFLAGS, "-I m4")
	13	AC_CONFIG_MACRO_DIR([m4])
	14	AM_INIT_AUTOMAKE([-Wall -Werror -Wno-portability subdir-objects])
	15	AC_CANONICAL_HOST
	16	AM_PROG_CC_C_O
	17	AC_USE_SYSTEM_EXTENSIONS
	18
	19	# Test if we have a new enough compiler.
	20	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
	21	#define GCC_VERSION \
	22	(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
	23
	24	#define CLANG_VERSION \
	25	(__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
	26
	27	#if GCC_VERSION < 40700 && CLANG_VERSION < 10000
	28	#error Sorry, your compiler is too old - please upgrade it
	29	#endif
	30	]])], [valid_compiler=yes], [valid_compiler=no])
	31	if test "x$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
f4591664 SP	63	PKG_CHECK_MODULES(FUSE, fuse, [], [
	64	PKG_CHECK_MODULES(FUSE, fuse3, [AC_DEFINE([HAVE_FUSE3], [1], [Use fuse3])])
	65	])
2183082c SH	66
2183082c SH	67	AC_PATH_PROG(HELP2MAN, help2man, false // No help2man //)
d85bd3de	68	AM_CONDITIONAL([HAVE_HELP2MAN], [test "x$HELP2MAN" != "xfalse // No help2man //" ])
2183082c	69
35482f91 SH	70	AC_ARG_WITH([runtime-path],
	71	[AC_HELP_STRING(
	72	[--with-runtime-path=dir],
	73	[runtime directory (default: /run)]
	74	)], [], [with_runtime_path=['/run']])
	75
	76	AS_AC_EXPAND(RUNTIME_PATH, "$with_runtime_path")
7456f3b5	77	AS_AC_EXPAND(LXCFSSHAREDIR, "$datarootdir/lxcfs")
b4851b56	78	AS_AC_EXPAND(LXCCONFDIR, "$datarootdir/lxc/config/common.conf.d")
7456f3b5 SG	79	AS_AC_EXPAND(LXCFSTARGETDIR, "$localstatedir/lib/lxcfs")
7456f3b5 SG	80
6cb7f996 SH	81	# Detect the distribution. This is used for the default configuration and
	82	# for some distro-specific build options.
	83	AC_MSG_CHECKING([host distribution])
	84	AC_ARG_WITH(distro, AS_HELP_STRING([--with-distro=DISTRO], [Specify the Linux distribution to target: One of redhat, oracle, centos, fedora, suse, gentoo, debian, arch, slackware, paldo, openmandriva or pardus.]))
	85	if type lsb_release >/dev/null 2>&1 && test "z$with_distro" = "z"; then
	86	with_distro=`lsb_release -is`
	87	fi
38ea5f47	88
6cb7f996 SH	89	if test "z$with_distro" = "z"; then
	90	AC_CHECK_FILE(/etc/redhat-release,with_distro="redhat")
	91	AC_CHECK_FILE(/etc/oracle-release,with_distro="oracle")
	92	AC_CHECK_FILE(/etc/centos-release,with_distro="centos")
	93	AC_CHECK_FILE(/etc/fedora-release,with_distro="fedora")
	94	AC_CHECK_FILE(/etc/SuSE-release,with_distro="suse")
	95	AC_CHECK_FILE(/etc/gentoo-release,with_distro="gentoo")
	96	AC_CHECK_FILE(/etc/debian_version,with_distro="debian")
	97	AC_CHECK_FILE(/etc/arch-release,with_distro="arch")
	98	AC_CHECK_FILE(/etc/slackware-version,with_distro="slackware")
	99	AC_CHECK_FILE(/etc/frugalware-release,with_distro="frugalware")
	100	AC_CHECK_FILE(/etc/mandrakelinux-release, with_distro="openmandriva")
	101	AC_CHECK_FILE(/etc/mandriva-release,with_distro="openmandriva")
	102	AC_CHECK_FILE(/etc/pardus-release,with_distro="pardus")
00d7fdd8	103	AC_CHECK_FILE(/etc/pld-release,with_distro="pld")
6cb7f996	104	fi
38ea5f47	105
6cb7f996 SH	106	with_distro=`echo ${with_distro} \| tr '[[:upper:]]' '[[:lower:]]'`
	107
	108	if test "z$with_distro" = "z"; then
	109	with_distro="unknown"
	110	fi
38ea5f47	111
6cb7f996 SH	112	case $with_distro in
	113	ubuntu)
	114	distroconf=default.conf.ubuntu
	115	;;
00d7fdd8	116	redhat\|centos\|fedora\|oracle\|oracleserver\|pld)
6cb7f996 SH	117	distroconf=default.conf.libvirt
	118	;;
	119	*)
	120	distroconf=default.conf.unknown
	121	;;
	122	esac
38ea5f47	123
6cb7f996 SH	124	AC_MSG_RESULT([$with_distro])
	125	AM_CONDITIONAL([HAVE_DEBIAN], [test x"$with_distro" = "xdebian" -o x"$with_distro" = "xubuntu"])
	126	AM_CONDITIONAL([DISTRO_UBUNTU], [test "x$with_distro" = "xubuntu"])
	127
	128	# Check for init system type
	129	AC_MSG_CHECKING([for init system type])
	130	AC_ARG_WITH([init-script],
	131	[AC_HELP_STRING([--with-init-script@<:@=TYPE@<:@,TYPE,...@:>@@:>@],
	132	[Type(s) of init script to install: bsd, openrc, sysvinit, systemd, upstart,
	133	distro @<:@default=distro@:>@])],[],[with_init_script=distro])
	134	case "$with_init_script" in
	135	distro)
	136	case $with_distro in
	137	fedora)
	138	init_script=systemd
	139	;;
	140	redhat\|centos\|oracle\|oracleserver)
	141	init_script=sysvinit
	142	;;
	143	debian)
ef2256ce	144	init_script=upstart,systemd,sysvinit
6cb7f996 SH	145	;;
6cb7f996 SH	146	ubuntu)
ef2256ce	147	init_script=upstart,systemd,sysvinit
6cb7f996	148	;;
00d7fdd8 ER	149	pld)
	150	init_script=systemd,sysvinit
	151	;;
6cb7f996 SH	152	slackware)
	153	echo -n "Warning: bsd init job not yet implemented"
	154	init_script=
	155	;;
	156	gentoo)
	157	echo -n "Warning: openrc init job not yet implemented"
	158	init_script=
	159	;;
	160	*)
	161	echo -n "Linux distribution init system unknown."
	162	init_script=
	163	;;
	164	esac
	165	;;
	166	*)
	167	init_script=$with_init_script
	168	;;
	169	esac
	170
	171	# Check valid init systems were given, run in subshell so we don't mess up IFS
	172	(IFS="," ; for init_sys in $init_script;
	173	do
	174	case "$init_sys" in
	175	none\|bsd\|openrc\|sysvinit\|systemd\|upstart)
	176	;;
	177	*)
	178	exit 1
	179	;;
	180	esac
	181	done) \|\| AC_MSG_ERROR([Unknown init system type in $init_script])
	182
	183	AM_CONDITIONAL([INIT_SCRIPT_BSD], [echo "$init_script" \|grep -q "bsd"])
	184	AM_CONDITIONAL([INIT_SCRIPT_OPENRC], [echo "$init_script" \|grep -q "openrc"])
	185	AM_CONDITIONAL([INIT_SCRIPT_SYSV], [echo "$init_script" \|grep -q "sysvinit"])
	186	AM_CONDITIONAL([INIT_SCRIPT_SYSTEMD], [echo "$init_script" \|grep -q "systemd"])
	187	AM_CONDITIONAL([INIT_SCRIPT_UPSTART], [echo "$init_script" \|grep -q "upstart"])
	188	AC_MSG_RESULT($init_script)
	189
369154d6	190	AC_SUBST([lxcfsdir], "${libdir}/lxcfs")
df54106a	191
237e200e SH	192	# Rootfs path, where the container mount structure is assembled
	193	AC_ARG_WITH([rootfs-path],
	194	[AC_HELP_STRING(
	195	[--with-rootfs-path=dir],
	196	[lxc rootfs mount point]
	197	)], [], [with_rootfs_path=['${libdir}/lxc/rootfs']])
	198
	199	AS_AC_EXPAND(LIBDIR, "$libdir")
	200
5fbea8a6 CB	201	AC_CHECK_FUNCS([strlcpy],
	202	AM_CONDITIONAL(HAVE_STRLCPY, true)
	203	AC_DEFINE(HAVE_STRLCPY,1,[Have strlcpy]),
	204	AM_CONDITIONAL(HAVE_STRLCPY, false))
38ea5f47	205
5fbea8a6 CB	206	AC_CHECK_FUNCS([strlcat],
	207	AM_CONDITIONAL(HAVE_STRLCAT, true)
	208	AC_DEFINE(HAVE_STRLCAT,1,[Have strlcat]),
	209	AM_CONDITIONAL(HAVE_STRLCAT, false))
	210
2aa59b2e CB	211	AC_CHECK_FUNCS([pidfd_open],
	212	AM_CONDITIONAL(HAVE_PIDFD_OPEN, true)
	213	AC_DEFINE(HAVE_PIDFD_OPEN,1,[Supports pidfd_open]),
	214	AM_CONDITIONAL(HAVE_PIDFD_OPEN, false))
	215
	216	AC_CHECK_FUNCS([pidfd_send_signal],
	217	AM_CONDITIONAL(HAVE_PIDFD_SEND_SIGNAL, true)
	218	AC_DEFINE(HAVE_PIDFD_SEND_SIGNAL,1,[Supports pidfd_send_signal]),
	219	AM_CONDITIONAL(HAVE_PIDFD_SEND_SIGNAL, false))
	220
9ce186dc CB	221	AX_CHECK_COMPILE_FLAG([-fdiagnostics-color], [CFLAGS="$CFLAGS -fdiagnostics-color"],,[-Werror])
	222	AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough=5], [CFLAGS="$CFLAGS -Wimplicit-fallthrough=5"],,[-Werror])
	223	AX_CHECK_COMPILE_FLAG([-Wcast-align], [CFLAGS="$CFLAGS -Wcast-align"],,[-Werror])
	224	AX_CHECK_COMPILE_FLAG([-Wstrict-prototypes], [CFLAGS="$CFLAGS -Wstrict-prototypes"],,[-Werror])
	225	AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [CFLAGS="$CFLAGS -fno-strict-aliasing"],,[-Werror])
	226	AX_CHECK_COMPILE_FLAG([-fstack-clash-protection], [CFLAGS="$CFLAGS -fstack-clash-protection"],,[-Werror])
	227	AX_CHECK_LINK_FLAG([-fstack-protector-strong], [CFLAGS="$CFLAGS -fstack-protector-strong"],,[-Werror])
	228	AX_CHECK_LINK_FLAG([--param=ssp-buffer-size=4], [CFLAGS="$CFLAGS --param=ssp-buffer-size=4"],,[-Werror])
	229	AX_CHECK_COMPILE_FLAG([-g], [CFLAGS="$CFLAGS -g"],,[-Werror])
	230	AX_CHECK_COMPILE_FLAG([--mcet -fcf-protection], [CFLAGS="$CFLAGS --mcet -fcf-protection"],,[-Werror])
	231	AX_CHECK_COMPILE_FLAG([-Werror=implicit-function-declaration], [CFLAGS="$CFLAGS -Werror=implicit-function-declaration"],,[-Werror])
	232	AX_CHECK_COMPILE_FLAG([-Wlogical-op], [CFLAGS="$CFLAGS -Wlogical-op"],,[-Werror])
	233	AX_CHECK_COMPILE_FLAG([-Wmissing-include-dirs], [CFLAGS="$CFLAGS -Wmissing-include-dirs"],,[-Werror])
	234	AX_CHECK_COMPILE_FLAG([-Wold-style-definition], [CFLAGS="$CFLAGS -Wold-style-definition"],,[-Werror])
	235	AX_CHECK_COMPILE_FLAG([-Winit-self], [CFLAGS="$CFLAGS -Winit-self"],,[-Werror])
	236	AX_CHECK_COMPILE_FLAG([-Wunused-but-set-variable], [CFLAGS="$CFLAGS -Wunused-but-set-variable"],,[-Werror])
	237	AX_CHECK_COMPILE_FLAG([-Wfloat-equal], [CFLAGS="$CFLAGS -Wfloat-equal"],,[-Werror])
	238	AX_CHECK_COMPILE_FLAG([-Wsuggest-attribute=noreturn], [CFLAGS="$CFLAGS -Wsuggest-attribute=noreturn"],,[-Werror])
	239	AX_CHECK_COMPILE_FLAG([-Werror=return-type], [CFLAGS="$CFLAGS -Werror=return-type"],,[-Werror])
	240	AX_CHECK_COMPILE_FLAG([-Werror=incompatible-pointer-types], [CFLAGS="$CFLAGS -Werror=incompatible-pointer-types"],,[-Werror])
	241	AX_CHECK_COMPILE_FLAG([-Wformat=2], [CFLAGS="$CFLAGS -Wformat=2"],,[-Werror])
	242	AX_CHECK_COMPILE_FLAG([-Wshadow], [CFLAGS="$CFLAGS -Wshadow"],,[-Werror])
	243	AX_CHECK_COMPILE_FLAG([-Wendif-labels], [CFLAGS="$CFLAGS -Wendif-labels"],,[-Werror])
	244	AX_CHECK_COMPILE_FLAG([-Werror=overflow], [CFLAGS="$CFLAGS -Werror=overflow"],,[-Werror])
	245	AX_CHECK_COMPILE_FLAG([-fdiagnostics-show-option], [CFLAGS="$CFLAGS -fdiagnostics-show-option"],,[-Werror])
	246	AX_CHECK_COMPILE_FLAG([-Werror=shift-count-overflow], [CFLAGS="$CFLAGS -Werror=shift-count-overflow"],,[-Werror])
	247	AX_CHECK_COMPILE_FLAG([-Werror=shift-overflow=2], [CFLAGS="$CFLAGS -Werror=shift-overflow=2"],,[-Werror])
	248	AX_CHECK_COMPILE_FLAG([-Wdate-time], [CFLAGS="$CFLAGS -Wdate-time"],,[-Werror])
	249	AX_CHECK_COMPILE_FLAG([-Wnested-externs], [CFLAGS="$CFLAGS -Wnested-externs"],,[-Werror])
	250	AX_CHECK_COMPILE_FLAG([-fasynchronous-unwind-tables], [CFLAGS="$CFLAGS -fasynchronous-unwind-tables"],,[-Werror])
	251	AX_CHECK_COMPILE_FLAG([-pipe], [CFLAGS="$CFLAGS -pipe"],,[-Werror])
	252	AX_CHECK_COMPILE_FLAG([-fexceptions], [CFLAGS="$CFLAGS -fexceptions"],,[-Werror])
	253
515f1ddf	254	CFLAGS="$CFLAGS -fvisibility=hidden -Wvla -std=gnu11"
9ce186dc CB	255	AX_CHECK_LINK_FLAG([-z relro], [LDFLAGS="$LDFLAGS -z relro"],,[])
	256	AX_CHECK_LINK_FLAG([-z now], [LDFLAGS="$LDFLAGS -z now"],,[])
	257
7eac3825 CB	258	# Build with ASAN commands
	259	AC_ARG_ENABLE([asan],
	260	[AS_HELP_STRING([--enable-asan], [build with address sanitizer enabled [default=no]])],
	261	[enable_asan=$enableval], [enable_asan=no])
	262	AM_CONDITIONAL([ENABLE_ASAN], [test "x$enable_asan" = "xyes"])
	263
	264	# Build with UBSAN commands
	265	AC_ARG_ENABLE([ubsan],
	266	[AS_HELP_STRING([--enable-ubsan], [build with ubsan sanitizer enabled [default=no]])],
	267	[enable_asan=$enableval], [enable_ubsan=no])
	268	AM_CONDITIONAL([ENABLE_UBSAN], [test "x$enable_ubsan" = "xyes"])
	269
2183082c	270	AC_OUTPUT
7eac3825 CB	271
	272	# Configuration overview
	273	cat << EOF
	274
	275	----------------------------
	276	Environment:
	277	- compiler: $CC
	278
	279	Debugging:
	280	- tests: $enable_tests
	281	- ASAN: $enable_asan
	282	- mutex debugging: $enable_mutex_debugging
	283	EOF