configure.ac

# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.63])

AC_INIT([fence-agents],
	m4_esyscmd([make/git-version-gen .tarball-version]),
	[linux-cluster@redhat.com])

AM_INIT_AUTOMAKE([-Wno-portability dist-bzip2 dist-xz subdir-objects])

LT_PREREQ([2.2.6])
LT_INIT

AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_SRCDIR([lib/fencing.py.py])
AC_CONFIG_HEADERS([make/clusterautoconfig.h])

AC_CANONICAL_HOST
AC_PROG_LIBTOOL

AC_LANG([C])

# Sanitize path

if test "$prefix" = "NONE"; then
	prefix="/usr"
	if test "$localstatedir" = "\${prefix}/var"; then
		localstatedir="/var"
	fi
	if test "$sysconfdir" = "\${prefix}/etc"; then
		sysconfdir="/etc"
	fi
	if test "$libdir" = "\${exec_prefix}/lib"; then
		if test -e /usr/lib64; then
			libdir="/usr/lib64"
		else
			libdir="/usr/lib"
		fi
	fi
fi

case $exec_prefix in
  NONE)   exec_prefix=$prefix;;
  prefix) exec_prefix=$prefix;;
esac

# Checks for programs.

# check stolen from gnulib/m4/gnu-make.m4
if ! ${MAKE-make} --version /cannot/make/this >/dev/null 2>&1; then
	AC_MSG_ERROR([you don't seem to have GNU make; it is required])
fi

AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_LN_S
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_PROG_AWK
AC_PROG_CXX
AC_PROG_RANLIB

## local helper functions

# this function checks if CC support options passed as
# args. Global CFLAGS are ignored during this test.
cc_supports_flag() {
	local CFLAGS="$@"
	AC_MSG_CHECKING([whether $CC supports "$@"])
	AC_COMPILE_IFELSE([int main(){return 0;}] ,
			  [RC=0; AC_MSG_RESULT([yes])],
			  [RC=1; AC_MSG_RESULT([no])])
	return $RC
}

# this function tests if a library has a certain function
# by using AC_CHECK_LIB but restores the original LIBS global
# envvar. This is required to avoid libtool to link everything
# with everything.
check_lib_no_libs() {
	AC_CHECK_LIB([$1], [$2],,
		     [AC_MSG_ERROR([Unable to find $1 library])])
	LIBS=$ac_check_lib_save_LIBS
}

# Checks for header files.
AC_CHECK_HEADERS([arpa/inet.h fcntl.h libintl.h limits.h netdb.h stddef.h sys/socket.h sys/time.h syslog.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_C_INLINE
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UINT32_T

# Checks for library functions.
AC_FUNC_FORK
AC_FUNC_MALLOC
AC_CHECK_FUNCS([alarm atexit bzero dup2 memmove memset select socket strcasecmp strchr strdup strerror strtol])

# local options
AC_ARG_ENABLE([debug],
	[  --enable-debug          enable debug build. ],
	[ default="no" ])

AC_ARG_WITH([fenceagentslibdir],
	[  --with-fenceagentslibdir=PATH
                          installation path for fence library. ],
	[ FENCEAGENTSLIBDIR="$withval" ],
	[ FENCEAGENTSLIBDIR="${datadir}/fence" ])

AC_ARG_WITH([default-config-dir],
	[  --with-default-config-dir=DIR
			  cluster config directory. ],
	[ DEFAULT_CONFIG_DIR="$withval" ],
	[ DEFAULT_CONFIG_DIR="$sysconfdir/cluster" ])

AC_ARG_WITH([default-config-file],
	[  --with-default-config-file=FILE
			  cluster config file. ],
	[ DEFAULT_CONFIG_FILE="$withval" ],
	[ DEFAULT_CONFIG_FILE="cluster.conf" ])

AC_ARG_WITH([agents],
	[  --with-agents=LIST
                          list of agents to build/ship (default: all). ],
	[ AGENTS_LIST="$withval" ],
	[ AGENTS_LIST="all" ])

if test "x$AGENTS_LIST" = x; then
	AC_ERROR([No agents selected])
fi

FENCE_KDUMP=0
if echo "$AGENTS_LIST" | grep -q -E "all|kdump"; then
	case "$host_os" in
		*bsd*)
			;;
		*)
			FENCE_KDUMP=1
			;;
	esac
	AGENTS_LIST=$(echo "$AGENTS_LIST" | sed -E "s/kdump( |$)//")
fi

FENCE_MANUAL=0
if echo "$AGENTS_LIST" | grep -q -E "all|manual"; then
	FENCE_MANUAL=1
	AGENTS_LIST=$(echo "$AGENTS_LIST" | sed -E "s/manual( |$)//")
fi

FENCE_MPATH=0
if echo "$AGENTS_LIST" | grep -q -E "all|mpath"; then
	FENCE_MPATH=1
fi

FENCE_SCSI=0
if echo "$AGENTS_LIST" | grep -q -E "all|scsi"; then
	FENCE_SCSI=1
fi

FENCE_ZVM=0
if echo "$AGENTS_LIST" | grep -q -E "all|zvm( |$)"; then
	FENCE_ZVM=1
fi

if test "x$AGENTS_LIST" != xall; then
	for j in $AGENTS_LIST; do
		if ! test -f agents/$j/fence_$j*.py; then
			AC_ERROR([Agent $j does not exists])
		fi
		AGENTS_LIST=`echo "$AGENTS_LIST" | sed -E -e "s#$j([^_/]|$)#$j/fence_$j\1#g" -e "s#zvm/fence_zvm( |$)#zvm/fence_zvmip\1#g"`
	done
fi

if test "x$AGENTS_LIST" = xall; then
	AGENTS_LIST=`find $srcdir/agents -mindepth 2 -maxdepth 2 -name 'fence_*.py' -print0 | xargs -0 | sed -e 's#[^ ]*/agents/##g' -e 's#lib/[A-Za-z_.]* ##g' -e 's#nss_wrapper/[A-Za-z_.]* ##g' -e 's#autodetect/[A-Za-z_.]* ##g'`
fi

XENAPILIB=0
if echo "$AGENTS_LIST" | grep -q xenapi; then
	XENAPILIB=1
fi

## random vars

LOGDIR=${localstatedir}/log/cluster
CLUSTERVARRUN=${localstatedir}/run/cluster
CLUSTERDATA=${datadir}/cluster

AC_PATH_PROGS(XMLLINT, xmllint)
AM_CONDITIONAL(BUILD_DOC, test "x$XMLLINT" != "x" )
if test "x$XMLLINT" = "x"; then
   AC_MSG_WARN([xmllint not installed, unable to (re-)build manual pages])
   exit 1
fi
AC_SUBST(XMLLINT)

AC_PATH_PROGS(XSLTPROC, xsltproc)
AM_CONDITIONAL(BUILD_DOC, test "x$XSLTPROC" != "x" )
if test "x$XSLTPROC" = "x"; then
   AC_MSG_WARN([xsltproc not installed, unable to (re-)build manual pages])
   exit 1
fi
AC_SUBST(XSLTPROC)

AM_PATH_PYTHON
if test -z "$PYTHON"; then
    echo "*** Essential program python not found" 1>&2
    exit 1
fi

AC_PYTHON_MODULE(pexpect, 1)
AC_PYTHON_MODULE(pycurl, 1)
AC_PYTHON_MODULE(requests, 1)

if echo "$AGENTS_LIST" | grep -q amt_ws; then
	AC_PYTHON_MODULE(pywsman)
	if test "x${HAVE_PYMOD_PYWSMAN}" != xyes; then
		AGENTS_LIST=$(echo "$AGENTS_LIST" | sed -E "s#amt_ws/fence_amt_ws.py( |$)##")
		AC_MSG_WARN("Not building fence_amt_ws")
	fi
fi
if echo "$AGENTS_LIST" | grep -q aws; then
	AC_PYTHON_MODULE(boto3)
	if test "x${HAVE_PYMOD_BOTO3}" != xyes; then
		AGENTS_LIST=$(echo "$AGENTS_LIST" | sed -E "s#aws/fence_aws.py( |$)##")
		AC_MSG_WARN("Not building fence_aws")
	fi
fi
if echo "$AGENTS_LIST" | grep -q -E "ovh|vmware_soap"; then
	AC_PYTHON_MODULE(suds)
	if test "x${HAVE_PYMOD_SUDS}" != xyes; then
		AGENTS_LIST=$(echo "$AGENTS_LIST" | sed -E "s#(ovh/fence_ovh|vmware_soap/fence_vmware_soap).py( |$)##g")
		AC_MSG_WARN("Not building fence_ovh and fence_vmware_soap")
	fi
fi
if echo "$AGENTS_LIST" | grep -q gce; then
	AC_PYTHON_MODULE(googleapiclient)
	if test "x${HAVE_PYMOD_GOOGLEAPICLIENT}" != xyes; then
		AGENTS_LIST=$(echo "$AGENTS_LIST" | sed -E "s#gce/fence_gce.py( |$)##")
		AC_MSG_WARN("Not building fence_ovh and fence_gce")
	fi
fi

if echo "$AGENTS_LIST" | grep -q openstack; then
        AC_PYTHON_MODULE(novaclient)
        AC_PYTHON_MODULE(keystoneclient)
        if test "x${HAVE_PYMOD_OPENSTACKCLIENT}" != xyes; then
                AGENTS_LIST=$(echo "$AGENTS_LIST" | sed -E "s#openstack/fence_openstack.py( |$)##")
                AC_MSG_WARN("Not building fence_openstack")
        fi
fi

## path to 3rd-party binaries
AC_PATH_PROG([IPMITOOL_PATH], [ipmitool], [/usr/bin/ipmitool])
AC_PATH_PROG([OPENSTACK_PATH], [openstack], [/usr/bin/openstack])
AC_PATH_PROG([AMTTOOL_PATH], [amttool], [/usr/bin/amttool])
AC_PATH_PROG([GNUTLSCLI_PATH], [gnutlscli], [/usr/bin/gnutls-cli])
AC_PATH_PROG([COROSYNC_CMAPCTL_PATH], [corosync-cmapctl], [/usr/sbin/corosync-cmapctl])
AC_PATH_PROG([SG_PERSIST_PATH], [sg_persist], [/usr/bin/sg_persist])
AC_PATH_PROG([SG_TURS_PATH], [sg_turs], [/usr/bin/sg_turs])
AC_PATH_PROG([VGS_PATH], [vgs], [/usr/sbin/vgs])
AC_PATH_PROG([SUDO_PATH], [sudo], [/usr/bin/sudo])
AC_PATH_PROG([SSH_PATH], [ssh], [/usr/bin/ssh])
AC_PATH_PROG([TELNET_PATH], [telnet], [/usr/bin/telnet])
AC_PATH_PROG([MPATH_PATH], [mpathpersist], [/usr/sbin/mpathpersist])
AC_PATH_PROG([SBD_PATH], [sbd], [/sbin/sbd])
AC_PATH_PROG([SUDO_PATH], [sudo], [/usr/bin/sudo])
AC_PATH_PROG([SNMPWALK_PATH], [snmpwalk], [/usr/bin/snmpwalk])
AC_PATH_PROG([SNMPSET_PATH], [snmpset], [/usr/bin/snmpset])
AC_PATH_PROG([SNMPGET_PATH], [snmpget], [/usr/bin/snmpget])
AC_PATH_PROG([NOVA_PATH], [nova], [/usr/bin/nova])
AC_PATH_PROG([POWERMAN_PATH], [powerman], [/usr/bin/powerman])

AC_PATH_PROG([PING_CMD], [ping])
AC_PATH_PROG([PING6_CMD], [ping6])
AC_PATH_PROG([PING4_CMD], [ping4])

if test "x${ac_cv_path_PING_CMD}" = x; then
	# assume multicall-ping just not available in build-environment
	PING_CMD="/bin/ping"
	PING4_CMD="/bin/ping -4"
	PING6_CMD="/bin/ping -6"
elif test "x${ac_cv_path_PING6_CMD}" = x; then
	# just IPv4
	PING4_CMD="${ac_cv_path_PING_CMD}"
elif test -L ${ac_cv_path_PING6_CMD}; then
	# assume multicall-ping
	PING4_CMD="${ac_cv_path_PING_CMD} -4"
else
	# ping is just IPv4
	PING4_CMD="${ac_cv_path_PING_CMD}"
fi


## do subst

AC_SUBST([DEFAULT_CONFIG_DIR])
AC_DEFINE_UNQUOTED([DEFAULT_CONFIG_DIR], "$(eval echo ${DEFAULT_CONFIG_DIR})",
		   [Default config directory])

AC_SUBST([DEFAULT_CONFIG_FILE])
AC_DEFINE_UNQUOTED([DEFAULT_CONFIG_FILE], "$(eval echo ${DEFAULT_CONFIG_FILE})",
		   [Default config file])

AC_SUBST([LOGDIR])
AC_DEFINE_UNQUOTED([LOGDIR], "$(eval echo ${LOGDIR})",
		   [Default logging directory])

AC_SUBST([CLUSTERVARRUN])
AC_DEFINE_UNQUOTED([CLUSTERVARRUN], "$(eval echo ${CLUSTERVARRUN})",
		   [Default cluster var/run directory])

AC_SUBST([CLUSTERDATA])
AC_SUBST([FENCEAGENTSLIBDIR])
AC_SUBST([SNMPBIN])
AC_SUBST([AGENTS_LIST])
AM_CONDITIONAL(BUILD_FENCE_KDUMP, test $FENCE_KDUMP -eq 1)
AM_CONDITIONAL(BUILD_FENCE_MANUAL, test $FENCE_MANUAL -eq 1)
AM_CONDITIONAL(BUILD_FENCE_MPATH, test $FENCE_MPATH -eq 1)
AM_CONDITIONAL(BUILD_FENCE_SCSI, test $FENCE_SCSI -eq 1)
AM_CONDITIONAL(BUILD_FENCE_ZVM, test $FENCE_ZVM -eq 1)
AM_CONDITIONAL(BUILD_XENAPILIB, test $XENAPILIB -eq 1)

AC_SUBST([IPMITOOL_PATH])
AC_SUBST([OPENSTACK_PATH])
AC_SUBST([AMTTOOL_PATH])
AC_SUBST([COROSYNC_CMAPCTL_PATH])
AC_SUBST([SG_PERSIST_PATH])
AC_SUBST([SG_TURS_PATH])
AC_SUBST([VGS_PATH])
AC_SUBST([POWERMAN_PATH])


## *FLAGS handling

ENV_CFLAGS="$CFLAGS"
ENV_CPPFLAGS="$CPPFLAGS"
ENV_LDFLAGS="$LDFLAGS"

# debug build stuff
if test "x${enable_debug}" = xyes; then
	AC_DEFINE_UNQUOTED([DEBUG], [1], [Compiling Debugging code])
	OPT_CFLAGS="-O0"
else
	OPT_CFLAGS="-O2"
fi

# gdb flags
if test "x${GCC}" = xyes; then
	GDB_FLAGS="-ggdb3"
else
	GDB_FLAGS="-g"
fi

# extra warnings
EXTRA_WARNINGS=""

WARNLIST="
	all
	shadow
	missing-prototypes
	missing-declarations
	strict-prototypes
	declaration-after-statement
	pointer-arith
	write-strings
	cast-align
	bad-function-cast
	missing-format-attribute
	format=2
	format-security
	format-nonliteral
	no-long-long
	unsigned-char
	gnu89-inline
	no-strict-aliasing
	"

for j in $WARNLIST; do
	if cc_supports_flag -W$j; then
		EXTRA_WARNINGS="$EXTRA_WARNINGS -W$j";
	fi
done

CFLAGS="$ENV_CFLAGS $OPT_CFLAGS $GDB_FLAGS \
	$EXTRA_WARNINGS $WERROR_CFLAGS"
CPPFLAGS="-I\$(top_builddir)/make -I\$(top_srcdir)/make -I. $ENV_CPPFLAGS"
LDFLAGS="$ENV_LDFLAGS"


AM_EXTRA_RECURSIVE_TARGETS([xml-check xml-upload])
AC_CONFIG_FILES([Makefile
		 agents/Makefile
		 lib/Makefile
		 doc/Makefile])

AC_OUTPUT