[mirror_corosync-qdevice.git] / configure.ac

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

# bootstrap / init
AC_PREREQ([2.61])

AC_INIT([corosync-qdevice],
	m4_esyscmd([build-aux/git-version-gen .tarball-version]),
	[users@clusterlabs.org])

AC_USE_SYSTEM_EXTENSIONS

AM_INIT_AUTOMAKE([foreign 1.11])

LT_PREREQ([2.2.6])
LT_INIT

AM_SILENT_RULES([yes])

AC_CONFIG_SRCDIR([qdevices/corosync-qdevice.c])
AC_CONFIG_HEADER([config.h])
AC_CONFIG_MACRO_DIR([m4])

AC_CANONICAL_HOST

AC_LANG([C])

AC_SUBST(WITH_LIST, [""])

dnl Fix default variables - "prefix" variable if not specified
if test "$prefix" = "NONE"; then
	prefix="/usr"

	dnl Fix "localstatedir" variable if not specified
	if test "$localstatedir" = "\${prefix}/var"; then
		localstatedir="/var"
	fi
	dnl Fix "sysconfdir" variable if not specified
	if test "$sysconfdir" = "\${prefix}/etc"; then
		sysconfdir="/etc"
	fi
	dnl Fix "libdir" variable if not specified
	if test "$libdir" = "\${exec_prefix}/lib"; then
		if test -e /usr/lib64; then
			libdir="/usr/lib64"
		else
			libdir="/usr/lib"
		fi
	fi
fi

if test "$srcdir" = "."; then
	AC_MSG_NOTICE([building in place srcdir:$srcdir])
	AC_DEFINE([BUILDING_IN_PLACE], 1, [building in place])
else
	AC_MSG_NOTICE([building out of tree srcdir:$srcdir])
fi

# 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_AWK
AC_PROG_GREP
AC_PROG_SED
AC_PROG_CPP
AC_PROG_CC
AC_PROG_CC_C99
if test "x$ac_cv_prog_cc_c99" = "xno"; then
	AC_MSG_ERROR(["C99 support is required"])
fi
AC_PROG_LN_S
AC_PROG_INSTALL
AC_PROG_MAKE_SET
PKG_PROG_PKG_CONFIG
AC_PATH_PROG([BASHPATH], [bash])
AC_CHECK_PROGS([GROFF], [groff])

# Checks for typedefs.
AC_TYPE_UID_T
AC_TYPE_INT16_T
AC_TYPE_INT32_T
AC_TYPE_INT64_T
AC_TYPE_INT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
AC_TYPE_UINT8_T
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T

# Checks for libraries.
PKG_CHECK_MODULES([nss],[nss])
PKG_CHECK_MODULES([qb], [libqb])
PKG_CHECK_MODULES([corosync_common], [libcorosync_common])
PKG_CHECK_MODULES([cmap], [libcmap])
PKG_CHECK_MODULES([votequorum], [libvotequorum])

AC_CONFIG_FILES([Makefile
		 qdevices/Makefile
		 man/Makefile
		 init/Makefile
		 ])

# ===============================================
# Helpers
# ===============================================

## helper for CC stuff
cc_supports_flag() {
	BACKUP="$CPPFLAGS"
	CPPFLAGS="$CPPFLAGS $@ $unknown_warnings_as_errors"
	AC_MSG_CHECKING([whether $CC supports "$@"])
	AC_PREPROC_IFELSE([AC_LANG_PROGRAM([])],
			  [RC=0; AC_MSG_RESULT([yes])],
			  [RC=1; AC_MSG_RESULT([no])])
	CPPFLAGS="$BACKUP"
	return $RC
}

## local defines
PACKAGE_FEATURES=""

# local options
AC_ARG_ENABLE([fatal-warnings],
	[  --enable-fatal-warnings         : enable fatal warnings. ],
	[ default="no" ])

AC_ARG_ENABLE([debug],
	[  --enable-debug                  : enable debug build. ],
	[ default="no" ])

AC_ARG_ENABLE([secure-build],
	[  --enable-secure-build           : enable PIE/RELRO build. ],
	[],
	[enable_secure_build="yes"])

AC_ARG_ENABLE([systemd],
	      [  --enable-systemd                : Install systemd service files],,
	[ enable_systemd="no" ])
AM_CONDITIONAL(INSTALL_SYSTEMD, test x$enable_systemd = xyes)

AC_ARG_WITH([initconfigdir],
	[AS_HELP_STRING([--with-initconfigdir=DIR],
		[configuration directory @<:@SYSCONFDIR/sysconfig@:>@])],
	[INITCONFIGDIR="$withval"],
	[INITCONFIGDIR='${sysconfdir}/sysconfig'])
AC_SUBST([INITCONFIGDIR])

AC_ARG_WITH([initddir],
	[  --with-initddir=DIR     : path to init script directory. ],
	[ INITDDIR="$withval" ],
	[ INITDDIR="$sysconfdir/init.d" ])

AC_ARG_WITH([systemddir],
	[  --with-systemddir=DIR   : path to systemd unit files directory. ],
	[ SYSTEMDDIR="$withval" ],
	[ SYSTEMDDIR="/lib/systemd/system" ])

AC_ARG_ENABLE([qdevices],
	[  --disable-qdevices               : Quorum devices support ],,
	[ enable_qdevices="yes" ])
AM_CONDITIONAL(BUILD_QDEVICES, test x$enable_qdevices = xyes)
AC_ARG_ENABLE([qnetd],
	[  --disable-qnetd                  : Quorum Net Daemon support ],,
	[ enable_qnetd="yes" ])
AM_CONDITIONAL(BUILD_QNETD, test x$enable_qnetd = xyes)

# *FLAGS handling goes here

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

# debug build stuff
if test "x${enable_debug}" = xyes; then
	AC_DEFINE_UNQUOTED([DEBUG], [1], [Compiling Debugging code])
	OPT_CFLAGS="-O0"
	PACKAGE_FEATURES="$PACKAGE_FEATURES debug"
else
	OPT_CFLAGS="-O3"
fi

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

if test "x${enable_systemd}" = xyes; then
	PKG_CHECK_MODULES([libsystemd], [libsystemd])
	AC_DEFINE([HAVE_LIBSYSTEMD], [1], [have systemd interface library])
	PACKAGE_FEATURES="$PACKAGE_FEATURES systemd"
        WITH_LIST="$WITH_LIST --with systemd"
fi
if test "x${enable_qdevices}" = xyes; then
	PACKAGE_FEATURES="$PACKAGE_FEATURES qdevices"
fi
if test "x${enable_qnetd}" = xyes; then
	PACKAGE_FEATURES="$PACKAGE_FEATURES qnetd"
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

if test "x${enable_fatal_warnings}" = xyes && \
		cc_supports_flag -Werror ; then
	AC_MSG_NOTICE([Enabling Fatal Warnings (-Werror)])
	WERROR_CFLAGS="-Werror"
	PACKAGE_FEATURES="$PACKAGE_FEATURES fatal-warnings"
else
	WERROR_CFLAGS=""
fi

if test "x${enable_secure_build}" = xyes; then
  # stolen from apache configure snippet
  AC_CACHE_CHECK([whether $CC accepts PIE flags], [ap_cv_cc_pie], [
    save_CFLAGS=$CFLAGS
    save_LDFLAGS=$LDFLAGS
    CFLAGS="$CFLAGS -fPIE"
    LDFLAGS="$LDFLAGS -pie"
    AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
      [ap_cv_cc_pie=yes], [ap_cv_cc_pie=no], [ap_cv_cc_pie=yes])
    CFLAGS=$save_CFLAGS
    LDFLAGS=$save_LDFLAGS
  ])
  if test "$ap_cv_cc_pie" = "yes"; then
    SEC_FLAGS="$SEC_FLAGS -fPIE"
    SEC_LDFLAGS="$SEC_LDFLAGS -pie"
    PACKAGE_FEATURES="$PACKAGE_FEATURES pie"
  fi

  # similar to above
  AC_CACHE_CHECK([whether $CC accepts RELRO flags], [ap_cv_cc_relro], [
    save_LDFLAGS=$LDFLAGS
    LDFLAGS="$LDFLAGS -Wl,-z,relro"
    AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
      [ap_cv_cc_relro=yes], [ap_cv_cc_relro=no], [ap_cv_cc_relro=yes])
    LDFLAGS=$save_LDFLAGS
  ])
  if test "$ap_cv_cc_relro" = "yes"; then
    SEC_LDFLAGS="$SEC_LDFLAGS -Wl,-z,relro"
    PACKAGE_FEATURES="$PACKAGE_FEATURES relro"
  fi

  AC_CACHE_CHECK([whether $CC accepts BINDNOW flags], [ap_cv_cc_bindnow], [
    save_LDFLAGS=$LDFLAGS
    LDFLAGS="$LDFLAGS -Wl,-z,now"
    AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
      [ap_cv_cc_bindnow=yes], [ap_cv_cc_bindnow=no], [ap_cv_cc_bindnow=yes])
    LDFLAGS=$save_LDFLAGS
  ])
  if test "$ap_cv_cc_bindnow" = "yes"; then
    SEC_LDFLAGS="$SEC_LDFLAGS -Wl,-z,now"
    PACKAGE_FEATURES="$PACKAGE_FEATURES bindnow"
  fi
fi

AC_CACHE_CHECK([whether $CC accepts "--as-needed"], [ap_cv_cc_as_needed], [
  save_LDFLAGS=$LDFLAGS
  LDFLAGS="$LDFLAGS -Wl,--as-needed"
  AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
    [ap_cv_cc_as_needed=yes], [ap_cv_cc_as_needed=no], [ap_cv_cc_as_needed=yes])
  LDFLAGS=$save_LDFLAGS
])

# define global include dirs
INCLUDE_DIRS="$INCLUDE_DIRS -I\$(top_builddir)/include -I\$(top_srcdir)/include"

# final build of *FLAGS
CFLAGS="$ENV_CFLAGS $lt_prog_compiler_pic $SEC_FLAGS $OPT_CFLAGS $GDB_FLAGS \
	$EXTRA_WARNINGS \
	$WERROR_CFLAGS"
CPPFLAGS="$ENV_CPPFLAGS $INCLUDE_DIRS"
LDFLAGS="$ENV_LDFLAGS $lt_prog_compiler_pic $SEC_LDFLAGS"

if test "$ap_cv_cc_as_needed" = "yes"; then
  LDFLAGS="$LDFLAGS -Wl,--as-needed"
fi

# substitute what we need:
AC_SUBST([BASHPATH])
AC_SUBST([INITDDIR])
AC_SUBST([SYSTEMDDIR])
AC_SUBST([LOGDIR])
AC_SUBST([LOGROTATEDIR])

AC_SUBST([SOMAJOR])
AC_SUBST([SOMINOR])
AC_SUBST([SOMICRO])
AC_SUBST([SONAME])

AC_SUBST([NSS_LDFLAGS])

AM_CONDITIONAL(BUILD_HTML_DOCS, test -n "${GROFF}")

AC_DEFINE_UNQUOTED([LOCALSTATEDIR], "$(eval echo ${localstatedir})", [localstate directory])

COROSYSCONFDIR=${sysconfdir}/corosync
AC_SUBST([COROSYSCONFDIR])
AC_DEFINE_UNQUOTED([COROSYSCONFDIR], "$(eval echo ${COROSYSCONFDIR})", [corosync-qdevice config directory])

AC_DEFINE_UNQUOTED([PACKAGE_FEATURES], "${PACKAGE_FEATURES}", [corosync-qdevice built-in features])

AC_OUTPUT

AC_MSG_RESULT([])
AC_MSG_RESULT([$PACKAGE configuration:])
AC_MSG_RESULT([  Version                  = ${VERSION}])
AC_MSG_RESULT([  Prefix                   = ${prefix}])
AC_MSG_RESULT([  Executables              = ${sbindir}])
AC_MSG_RESULT([  Man pages                = ${mandir}])
AC_MSG_RESULT([  Doc dir                  = ${docdir}])
AC_MSG_RESULT([  Libraries                = ${libdir}])
AC_MSG_RESULT([  Header files             = ${includedir}])
AC_MSG_RESULT([  Arch-independent files   = ${datadir}])
AC_MSG_RESULT([  State information        = ${localstatedir}])
AC_MSG_RESULT([  System configuration     = ${sysconfdir}])
AC_MSG_RESULT([  System init.d directory  = ${INITDDIR}])
AC_MSG_RESULT([  System systemd directory = ${SYSTEMDDIR}])
AC_MSG_RESULT([  Log directory            = ${LOGDIR}])
AC_MSG_RESULT([  Log rotate directory     = ${LOGROTATEDIR}])
AC_MSG_RESULT([  corosync config dir      = ${COROSYSCONFDIR}])
AC_MSG_RESULT([  init config directory    = ${INITCONFIGDIR}])
AC_MSG_RESULT([  Features                 = ${PACKAGE_FEATURES}])
AC_MSG_RESULT([])
AC_MSG_RESULT([$PACKAGE build info:])
AC_MSG_RESULT([  Default optimization     = ${OPT_CFLAGS}])
AC_MSG_RESULT([  Default debug options    = ${GDB_CFLAGS}])
AC_MSG_RESULT([  Extra compiler warnings  = ${EXTRA_WARNING}])
AC_MSG_RESULT([  Env. defined CFLAG       = ${ENV_CFLAGS}])
AC_MSG_RESULT([  Env. defined CPPFLAGS    = ${ENV_CPPFLAGS}])
AC_MSG_RESULT([  Env. defined LDFLAGS     = ${ENV_LDFLAGS}])
AC_MSG_RESULT([  Fatal War.   CFLAGS      = ${WERROR_CFLAGS}])
AC_MSG_RESULT([  Final        CFLAGS      = ${CFLAGS}])
AC_MSG_RESULT([  Final        CPPFLAGS    = ${CPPFLAGS}])
AC_MSG_RESULT([  Final        LDFLAGS     = ${LDFLAGS}])
Commit	Line	Data
9a1955a7 JF	1	# -- Autoconf --
	2	# Process this file with autoconf to produce a configure script.
	3
	4	# bootstrap / init
	5	AC_PREREQ([2.61])
	6
	7	AC_INIT([corosync-qdevice],
	8	m4_esyscmd([build-aux/git-version-gen .tarball-version]),
	9	[users@clusterlabs.org])
	10
	11	AC_USE_SYSTEM_EXTENSIONS
	12
	13	AM_INIT_AUTOMAKE([foreign 1.11])
	14
	15	LT_PREREQ([2.2.6])
	16	LT_INIT
	17
	18	AM_SILENT_RULES([yes])
	19
	20	AC_CONFIG_SRCDIR([qdevices/corosync-qdevice.c])
	21	AC_CONFIG_HEADER([config.h])
	22	AC_CONFIG_MACRO_DIR([m4])
	23
	24	AC_CANONICAL_HOST
	25
	26	AC_LANG([C])
	27
	28	AC_SUBST(WITH_LIST, [""])
	29
	30	dnl Fix default variables - "prefix" variable if not specified
	31	if test "$prefix" = "NONE"; then
	32	prefix="/usr"
	33
	34	dnl Fix "localstatedir" variable if not specified
	35	if test "$localstatedir" = "\${prefix}/var"; then
	36	localstatedir="/var"
	37	fi
	38	dnl Fix "sysconfdir" variable if not specified
	39	if test "$sysconfdir" = "\${prefix}/etc"; then
	40	sysconfdir="/etc"
	41	fi
	42	dnl Fix "libdir" variable if not specified
	43	if test "$libdir" = "\${exec_prefix}/lib"; then
	44	if test -e /usr/lib64; then
	45	libdir="/usr/lib64"
	46	else
	47	libdir="/usr/lib"
	48	fi
	49	fi
	50	fi
	51
	52	if test "$srcdir" = "."; then
	53	AC_MSG_NOTICE([building in place srcdir:$srcdir])
	54	AC_DEFINE([BUILDING_IN_PLACE], 1, [building in place])
	55	else
	56	AC_MSG_NOTICE([building out of tree srcdir:$srcdir])
	57	fi
	58
	59	# Checks for programs.
	60
	61	# check stolen from gnulib/m4/gnu-make.m4
	62	if ! ${MAKE-make} --version /cannot/make/this >/dev/null 2>&1; then
	63	AC_MSG_ERROR([you don't seem to have GNU make; it is required])
	64	fi
65
66	AC_PROG_AWK
67	AC_PROG_GREP
68	AC_PROG_SED
69	AC_PROG_CPP
70	AC_PROG_CC
71	AC_PROG_CC_C99
72	if test "x$ac_cv_prog_cc_c99" = "xno"; then
73	AC_MSG_ERROR(["C99 support is required"])
74	fi
75	AC_PROG_LN_S
76	AC_PROG_INSTALL
77	AC_PROG_MAKE_SET
78	PKG_PROG_PKG_CONFIG
79	AC_PATH_PROG([BASHPATH], [bash])
80	AC_CHECK_PROGS([GROFF], [groff])
81
82	# Checks for typedefs.
83	AC_TYPE_UID_T
84	AC_TYPE_INT16_T
85	AC_TYPE_INT32_T
86	AC_TYPE_INT64_T
87	AC_TYPE_INT8_T
88	AC_TYPE_UINT16_T
89	AC_TYPE_UINT32_T
90	AC_TYPE_UINT64_T
91	AC_TYPE_UINT8_T
92	AC_TYPE_SIZE_T
93	AC_TYPE_SSIZE_T
94
95	# Checks for libraries.
96	PKG_CHECK_MODULES([nss],[nss])
97	PKG_CHECK_MODULES([qb], [libqb])
98	PKG_CHECK_MODULES([corosync_common], [libcorosync_common])
99	PKG_CHECK_MODULES([cmap], [libcmap])
100	PKG_CHECK_MODULES([votequorum], [libvotequorum])
101
102	AC_CONFIG_FILES([Makefile
103	qdevices/Makefile
104	man/Makefile
105	init/Makefile
106	])
107
108	# ===============================================
109	# Helpers
110	# ===============================================
111
112	## helper for CC stuff
113	cc_supports_flag() {
114	BACKUP="$CPPFLAGS"
115	CPPFLAGS="$CPPFLAGS $@ $unknown_warnings_as_errors"
116	AC_MSG_CHECKING([whether $CC supports "$@"])
117	AC_PREPROC_IFELSE([AC_LANG_PROGRAM([])],
118	[RC=0; AC_MSG_RESULT([yes])],
119	[RC=1; AC_MSG_RESULT([no])])
120	CPPFLAGS="$BACKUP"
121	return $RC
122	}
123
124	## local defines
125	PACKAGE_FEATURES=""
126
127	# local options
128	AC_ARG_ENABLE([fatal-warnings],
129	[ --enable-fatal-warnings : enable fatal warnings. ],
130	[ default="no" ])
131
132	AC_ARG_ENABLE([debug],
133	[ --enable-debug : enable debug build. ],
134	[ default="no" ])
135
136	AC_ARG_ENABLE([secure-build],
137	[ --enable-secure-build : enable PIE/RELRO build. ],
138	[],
139	[enable_secure_build="yes"])
140
141	AC_ARG_ENABLE([systemd],
142	[ --enable-systemd : Install systemd service files],,
143	[ enable_systemd="no" ])
144	AM_CONDITIONAL(INSTALL_SYSTEMD, test x$enable_systemd = xyes)
145
146	AC_ARG_WITH([initconfigdir],
147	[AS_HELP_STRING([--with-initconfigdir=DIR],
148	[configuration directory @<:@SYSCONFDIR/sysconfig@:>@])],
149	[INITCONFIGDIR="$withval"],
150	[INITCONFIGDIR='${sysconfdir}/sysconfig'])
151	AC_SUBST([INITCONFIGDIR])
152
153	AC_ARG_WITH([initddir],
154	[ --with-initddir=DIR : path to init script directory. ],
155	[ INITDDIR="$withval" ],
156	[ INITDDIR="$sysconfdir/init.d" ])
157
158	AC_ARG_WITH([systemddir],
159	[ --with-systemddir=DIR : path to systemd unit files directory. ],
160	[ SYSTEMDDIR="$withval" ],
161	[ SYSTEMDDIR="/lib/systemd/system" ])
162
163	AC_ARG_ENABLE([qdevices],
164	[ --disable-qdevices : Quorum devices support ],,
165	[ enable_qdevices="yes" ])
166	AM_CONDITIONAL(BUILD_QDEVICES, test x$enable_qdevices = xyes)
167	AC_ARG_ENABLE([qnetd],
168	[ --disable-qnetd : Quorum Net Daemon support ],,
169	[ enable_qnetd="yes" ])
170	AM_CONDITIONAL(BUILD_QNETD, test x$enable_qnetd = xyes)
171
172	# *FLAGS handling goes here
173
174	ENV_CFLAGS="$CFLAGS"
175	ENV_CPPFLAGS="$CPPFLAGS"
176	ENV_LDFLAGS="$LDFLAGS"
177
178	# debug build stuff
179	if test "x${enable_debug}" = xyes; then
180	AC_DEFINE_UNQUOTED([DEBUG], [1], [Compiling Debugging code])
181	OPT_CFLAGS="-O0"
182	PACKAGE_FEATURES="$PACKAGE_FEATURES debug"
183	else
184	OPT_CFLAGS="-O3"
185	fi
186
187	# gdb flags
188	if test "x${GCC}" = xyes; then
189	GDB_FLAGS="-ggdb3"
190	else
191	GDB_FLAGS="-g"
192	fi
193
194	if test "x${enable_systemd}" = xyes; then
195	PKG_CHECK_MODULES([libsystemd], [libsystemd])
196	AC_DEFINE([HAVE_LIBSYSTEMD], [1], [have systemd interface library])
197	PACKAGE_FEATURES="$PACKAGE_FEATURES systemd"
198	WITH_LIST="$WITH_LIST --with systemd"
199	fi
200	if test "x${enable_qdevices}" = xyes; then
201	PACKAGE_FEATURES="$PACKAGE_FEATURES qdevices"
202	fi
203	if test "x${enable_qnetd}" = xyes; then
204	PACKAGE_FEATURES="$PACKAGE_FEATURES qnetd"
205	fi
206
207	# extra warnings
208	EXTRA_WARNINGS=""
209
210	WARNLIST="
211	all
212	shadow
213	missing-prototypes
214	missing-declarations
215	strict-prototypes
216	declaration-after-statement
217	pointer-arith
218	write-strings
219	cast-align
220	bad-function-cast
221	missing-format-attribute
222	format=2
223	format-security
224	format-nonliteral
225	no-long-long
226	unsigned-char
227	gnu89-inline
228	no-strict-aliasing
229	"
230
231	for j in $WARNLIST; do
232	if cc_supports_flag -W$j; then
233	EXTRA_WARNINGS="$EXTRA_WARNINGS -W$j";
234	fi
235	done
236
237	if test "x${enable_fatal_warnings}" = xyes && \
238	cc_supports_flag -Werror ; then
239	AC_MSG_NOTICE([Enabling Fatal Warnings (-Werror)])
240	WERROR_CFLAGS="-Werror"
241	PACKAGE_FEATURES="$PACKAGE_FEATURES fatal-warnings"
242	else
243	WERROR_CFLAGS=""
244	fi
245
246	if test "x${enable_secure_build}" = xyes; then
247	# stolen from apache configure snippet
248	AC_CACHE_CHECK([whether $CC accepts PIE flags], [ap_cv_cc_pie], [
249	save_CFLAGS=$CFLAGS
250	save_LDFLAGS=$LDFLAGS
251	CFLAGS="$CFLAGS -fPIE"
252	LDFLAGS="$LDFLAGS -pie"
253	AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
254	[ap_cv_cc_pie=yes], [ap_cv_cc_pie=no], [ap_cv_cc_pie=yes])
255	CFLAGS=$save_CFLAGS
256	LDFLAGS=$save_LDFLAGS
257	])
258	if test "$ap_cv_cc_pie" = "yes"; then
259	SEC_FLAGS="$SEC_FLAGS -fPIE"
260	SEC_LDFLAGS="$SEC_LDFLAGS -pie"
261	PACKAGE_FEATURES="$PACKAGE_FEATURES pie"
262	fi
263
264	# similar to above
265	AC_CACHE_CHECK([whether $CC accepts RELRO flags], [ap_cv_cc_relro], [
266	save_LDFLAGS=$LDFLAGS
267	LDFLAGS="$LDFLAGS -Wl,-z,relro"
268	AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
269	[ap_cv_cc_relro=yes], [ap_cv_cc_relro=no], [ap_cv_cc_relro=yes])
270	LDFLAGS=$save_LDFLAGS
271	])
272	if test "$ap_cv_cc_relro" = "yes"; then
273	SEC_LDFLAGS="$SEC_LDFLAGS -Wl,-z,relro"
274	PACKAGE_FEATURES="$PACKAGE_FEATURES relro"
275	fi
276
277	AC_CACHE_CHECK([whether $CC accepts BINDNOW flags], [ap_cv_cc_bindnow], [
278	save_LDFLAGS=$LDFLAGS
279	LDFLAGS="$LDFLAGS -Wl,-z,now"
280	AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
281	[ap_cv_cc_bindnow=yes], [ap_cv_cc_bindnow=no], [ap_cv_cc_bindnow=yes])
282	LDFLAGS=$save_LDFLAGS
283	])
284	if test "$ap_cv_cc_bindnow" = "yes"; then
285	SEC_LDFLAGS="$SEC_LDFLAGS -Wl,-z,now"
286	PACKAGE_FEATURES="$PACKAGE_FEATURES bindnow"
287	fi
288	fi
289
290	AC_CACHE_CHECK([whether $CC accepts "--as-needed"], [ap_cv_cc_as_needed], [
291	save_LDFLAGS=$LDFLAGS
292	LDFLAGS="$LDFLAGS -Wl,--as-needed"
293	AC_TRY_RUN([static int foo[30000]; int main () { return 0; }],
294	[ap_cv_cc_as_needed=yes], [ap_cv_cc_as_needed=no], [ap_cv_cc_as_needed=yes])
295	LDFLAGS=$save_LDFLAGS
296	])
297
298	# define global include dirs
299	INCLUDE_DIRS="$INCLUDE_DIRS -I\$(top_builddir)/include -I\$(top_srcdir)/include"
300
301	# final build of *FLAGS
302	CFLAGS="$ENV_CFLAGS $lt_prog_compiler_pic $SEC_FLAGS $OPT_CFLAGS $GDB_FLAGS \
303	$EXTRA_WARNINGS \
304	$WERROR_CFLAGS"
305	CPPFLAGS="$ENV_CPPFLAGS $INCLUDE_DIRS"
306	LDFLAGS="$ENV_LDFLAGS $lt_prog_compiler_pic $SEC_LDFLAGS"
307
308	if test "$ap_cv_cc_as_needed" = "yes"; then
309	LDFLAGS="$LDFLAGS -Wl,--as-needed"
310	fi
311
312	# substitute what we need:
313	AC_SUBST([BASHPATH])
314	AC_SUBST([INITDDIR])
315	AC_SUBST([SYSTEMDDIR])
316	AC_SUBST([LOGDIR])
317	AC_SUBST([LOGROTATEDIR])
318
319	AC_SUBST([SOMAJOR])
320	AC_SUBST([SOMINOR])
321	AC_SUBST([SOMICRO])
322	AC_SUBST([SONAME])
323
324	AC_SUBST([NSS_LDFLAGS])
325
326	AM_CONDITIONAL(BUILD_HTML_DOCS, test -n "${GROFF}")
327
328	AC_DEFINE_UNQUOTED([LOCALSTATEDIR], "$(eval echo ${localstatedir})", [localstate directory])
329
330	COROSYSCONFDIR=${sysconfdir}/corosync
331	AC_SUBST([COROSYSCONFDIR])
332	AC_DEFINE_UNQUOTED([COROSYSCONFDIR], "$(eval echo ${COROSYSCONFDIR})", [corosync-qdevice config directory])
333
334	AC_DEFINE_UNQUOTED([PACKAGE_FEATURES], "${PACKAGE_FEATURES}", [corosync-qdevice built-in features])
335
336	AC_OUTPUT
337
338	AC_MSG_RESULT([])
339	AC_MSG_RESULT([$PACKAGE configuration:])
340	AC_MSG_RESULT([ Version = ${VERSION}])
341	AC_MSG_RESULT([ Prefix = ${prefix}])
342	AC_MSG_RESULT([ Executables = ${sbindir}])
343	AC_MSG_RESULT([ Man pages = ${mandir}])
344	AC_MSG_RESULT([ Doc dir = ${docdir}])
345	AC_MSG_RESULT([ Libraries = ${libdir}])
346	AC_MSG_RESULT([ Header files = ${includedir}])
347	AC_MSG_RESULT([ Arch-independent files = ${datadir}])
348	AC_MSG_RESULT([ State information = ${localstatedir}])
349	AC_MSG_RESULT([ System configuration = ${sysconfdir}])
350	AC_MSG_RESULT([ System init.d directory = ${INITDDIR}])
351	AC_MSG_RESULT([ System systemd directory = ${SYSTEMDDIR}])
352	AC_MSG_RESULT([ Log directory = ${LOGDIR}])
353	AC_MSG_RESULT([ Log rotate directory = ${LOGROTATEDIR}])
354	AC_MSG_RESULT([ corosync config dir = ${COROSYSCONFDIR}])
355	AC_MSG_RESULT([ init config directory = ${INITCONFIGDIR}])
356	AC_MSG_RESULT([ Features = ${PACKAGE_FEATURES}])
357	AC_MSG_RESULT([])
358	AC_MSG_RESULT([$PACKAGE build info:])
359	AC_MSG_RESULT([ Default optimization = ${OPT_CFLAGS}])
360	AC_MSG_RESULT([ Default debug options = ${GDB_CFLAGS}])
361	AC_MSG_RESULT([ Extra compiler warnings = ${EXTRA_WARNING}])
362	AC_MSG_RESULT([ Env. defined CFLAG = ${ENV_CFLAGS}])
363	AC_MSG_RESULT([ Env. defined CPPFLAGS = ${ENV_CPPFLAGS}])
364	AC_MSG_RESULT([ Env. defined LDFLAGS = ${ENV_LDFLAGS}])
365	AC_MSG_RESULT([ Fatal War. CFLAGS = ${WERROR_CFLAGS}])
366	AC_MSG_RESULT([ Final CFLAGS = ${CFLAGS}])
367	AC_MSG_RESULT([ Final CPPFLAGS = ${CPPFLAGS}])
368	AC_MSG_RESULT([ Final LDFLAGS = ${LDFLAGS}])