3 # Copyright (c) 2008, 2009, 2010 Nicira Networks.
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at:
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
17 dnl Check for --enable-threaded and updates CFLAGS.
18 AC_DEFUN([OVS_CHECK_THREADED],
19 [AC_REQUIRE([AC_PROG_CC])
22 [AC_HELP_STRING([--enable-threaded],
23 [Enable threaded version of userspace implementation])],
24 [case "${enableval}" in
25 (yes) coverage=true ;;
26 (no) coverage=false ;;
27 (*) AC_MSG_ERROR([bad value ${enableval} for --enable-threaded]) ;;
31 AC_DEFINE([THREADED], [1],
32 [Define to 1 if the threaded version of userspace
33 implementation is enabled.])
36 dnl Checks for --enable-coverage and updates CFLAGS and LDFLAGS appropriately.
37 AC_DEFUN([OVS_CHECK_COVERAGE],
38 [AC_REQUIRE([AC_PROG_CC])
41 [AC_HELP_STRING([--enable-coverage],
42 [Enable gcov coverage tool.])],
43 [case "${enableval}" in
44 (lcov|yes) coverage=true ;;
45 (no) coverage=false ;;
46 (*) AC_MSG_ERROR([bad value ${enableval} for --enable-coverage]) ;;
50 CFLAGS="$CFLAGS -O0 --coverage"
51 LDFLAGS="$LDFLAGS --coverage"
54 dnl Checks for --enable-ndebug and defines NDEBUG if it is specified.
55 AC_DEFUN([OVS_CHECK_NDEBUG],
58 [AC_HELP_STRING([--enable-ndebug],
59 [Disable debugging features for max performance])],
60 [case "${enableval}" in
63 (*) AC_MSG_ERROR([bad value ${enableval} for --enable-ndebug]) ;;
66 AM_CONDITIONAL([NDEBUG], [test x$ndebug = xtrue])])
68 dnl Checks for Netlink support.
69 AC_DEFUN([OVS_CHECK_NETLINK],
70 [AC_CHECK_HEADER([linux/netlink.h],
73 [#include <sys/socket.h>
74 #include <linux/types.h>
76 AM_CONDITIONAL([HAVE_NETLINK], [test "$HAVE_NETLINK" = yes])
77 if test "$HAVE_NETLINK" = yes; then
78 AC_DEFINE([HAVE_NETLINK], [1],
79 [Define to 1 if Netlink protocol is available.])
82 dnl Checks for OpenSSL.
83 AC_DEFUN([OVS_CHECK_OPENSSL],
86 [AC_HELP_STRING([--disable-ssl], [Disable OpenSSL support])],
87 [case "${enableval}" in
90 (*) AC_MSG_ERROR([bad value ${enableval} for --enable-ssl]) ;;
94 if test "$ssl" != false; then
95 dnl Make sure that pkg-config is installed.
96 m4_pattern_forbid([PKG_CHECK_MODULES])
97 PKG_CHECK_MODULES([SSL], [libssl],
100 if test "$ssl" = check; then
101 AC_MSG_WARN([Cannot find libssl:
105 OpenFlow connections over SSL will not be supported.
106 (You may use --disable-ssl to suppress this warning.)])
108 AC_MSG_ERROR([Cannot find libssl (use --disable-ssl to configure without SSL support)])
113 AC_SUBST([HAVE_OPENSSL])
114 AM_CONDITIONAL([HAVE_OPENSSL], [test "$HAVE_OPENSSL" = yes])
115 if test "$HAVE_OPENSSL" = yes; then
116 AC_DEFINE([HAVE_OPENSSL], [1], [Define to 1 if OpenSSL is installed.])
119 dnl Checks for libraries needed by lib/socket-util.c.
120 AC_DEFUN([OVS_CHECK_SOCKET_LIBS],
121 [AC_CHECK_LIB([socket], [connect])
122 AC_SEARCH_LIBS([gethostbyname], [resolv], [RESOLVER_LIBS=-lresolv])])
124 dnl Checks for the directory in which to store the PKI.
125 AC_DEFUN([OVS_CHECK_PKIDIR],
128 AC_HELP_STRING([--with-pkidir=DIR],
129 [PKI hierarchy directory [[DATADIR/openvswitch/pki]]]),
131 [PKIDIR='${pkgdatadir}/pki'])
134 dnl Checks for the directory in which to store pidfiles.
135 AC_DEFUN([OVS_CHECK_RUNDIR],
138 AC_HELP_STRING([--with-rundir=DIR],
139 [directory used for pidfiles
140 [[LOCALSTATEDIR/run/openvswitch]]]),
142 [RUNDIR='${localstatedir}/run/openvswitch'])
145 dnl Checks for the directory in which to store logs.
146 AC_DEFUN([OVS_CHECK_LOGDIR],
149 AC_HELP_STRING([--with-logdir=DIR],
150 [directory used for logs [[LOCALSTATEDIR/log/PACKAGE]]]),
152 [LOGDIR='${localstatedir}/log/${PACKAGE}'])
155 dnl Checks for __malloc_hook, etc., supported by glibc.
156 AC_DEFUN([OVS_CHECK_MALLOC_HOOKS],
158 [whether libc supports hooks for malloc and related functions],
159 [ovs_cv_malloc_hooks],
164 [(void) __malloc_hook;
165 (void) __realloc_hook;
166 (void) __free_hook;])],
167 [ovs_cv_malloc_hooks=yes],
168 [ovs_cv_malloc_hooks=no])])
169 if test $ovs_cv_malloc_hooks = yes; then
170 AC_DEFINE([HAVE_MALLOC_HOOKS], [1],
171 [Define to 1 if you have __malloc_hook, __realloc_hook, and
172 __free_hook in <malloc.h>.])
175 dnl Checks for valgrind/valgrind.h.
176 AC_DEFUN([OVS_CHECK_VALGRIND],
177 [AC_CHECK_HEADERS([valgrind/valgrind.h])])
179 dnl Checks for Python 2.x, x >= 4.
180 AC_DEFUN([OVS_CHECK_PYTHON],
182 [for Python 2.x for x >= 4],
184 [if test -n "$PYTHON"; then
185 ovs_cv_python=$PYTHON
188 for binary in python python2.4 python2.5; do
189 ovs_save_IFS=$IFS; IFS=$PATH_SEPARATOR
192 test -z "$dir" && dir=.
193 if test -x $dir/$binary && $dir/$binary -c 'import sys
194 if sys.hexversion >= 0x02040000 and sys.hexversion < 0x03000000:
198 ovs_cv_python=$dir/$binary
204 AC_SUBST([HAVE_PYTHON])
205 AM_MISSING_PROG([PYTHON], [python])
206 if test $ovs_cv_python != no; then
207 PYTHON=$ovs_cv_python
212 AM_CONDITIONAL([HAVE_PYTHON], [test "$HAVE_PYTHON" = yes])])
215 AC_DEFUN([OVS_CHECK_DOT],
219 [dnl "dot" writes -V output to stderr:
220 if (dot -V) 2>&1 | grep '^dot - [gG]raphviz version' >/dev/null 2>&1; then
226 dnl Check whether to build E-R diagrams.
227 AC_DEFUN([OVS_CHECK_ER_DIAGRAMS],
228 [AC_REQUIRE([OVS_CHECK_DOT])
229 AC_REQUIRE([OVS_CHECK_PYTHON])
231 [whether to build E-R diagrams for database],
232 [ovs_cv_er_diagrams],
233 [if test $ovs_cv_dot != no && test $ovs_cv_python != no; then
234 ovs_cv_er_diagrams=yes
236 ovs_cv_er_diagrams=no
238 AM_CONDITIONAL([BUILD_ER_DIAGRAMS], [test $ovs_cv_er_diagrams = yes])])
240 dnl Checks for pyuic4.
241 AC_DEFUN([OVS_CHECK_PYUIC4],
245 [if (pyuic4 --version) >/dev/null 2>&1; then
250 AM_MISSING_PROG([PYUIC4], [pyuic4])
251 if test $ovs_cv_pyuic4 != no; then
252 PYUIC4=$ovs_cv_pyuic4
255 dnl Checks whether $PYTHON supports the module given as $1
256 AC_DEFUN([OVS_CHECK_PYTHON_MODULE],
257 [AC_REQUIRE([OVS_CHECK_PYTHON])
259 [for $1 Python module],
260 [ovs_cv_py_[]AS_TR_SH([$1])],
261 [ovs_cv_py_[]AS_TR_SH([$1])=no
262 if test $HAVE_PYTHON = yes; then
263 AS_ECHO(["running $PYTHON -c 'import $1
265 sys.exit(0)'..."]) >&AS_MESSAGE_LOG_FD 2>&1
266 if $PYTHON -c 'import $1
268 sys.exit(0)' >&AS_MESSAGE_LOG_FD 2>&1; then
269 ovs_cv_py_[]AS_TR_SH([$1])=yes
273 dnl Checks for Python modules needed by ovsdbmonitor.
274 AC_DEFUN([OVS_CHECK_OVSDBMONITOR],
275 [OVS_CHECK_PYTHON_MODULE([PySide.QtCore])
276 OVS_CHECK_PYTHON_MODULE([PyQt4.QtCore])
277 OVS_CHECK_PYTHON_MODULE([twisted.conch.ssh])
278 OVS_CHECK_PYTHON_MODULE([twisted.internet])
279 OVS_CHECK_PYTHON_MODULE([twisted.application])
280 OVS_CHECK_PYTHON_MODULE([json])
281 OVS_CHECK_PYTHON_MODULE([zope.interface])
282 if (test $ovs_cv_py_PySide_QtCore = yes \
283 || test $ovs_cv_py_PyQt4_QtCore = yes) \
284 && test $ovs_cv_py_twisted_conch_ssh = yes \
285 && test $ovs_cv_py_twisted_internet = yes \
286 && test $ovs_cv_py_twisted_application = yes \
287 && test $ovs_cv_py_json = yes \
288 && test $ovs_cv_py_zope_interface = yes; then
289 BUILD_OVSDBMONITOR=yes
291 BUILD_OVSDBMONITOR=no
293 AC_MSG_CHECKING([whether to build ovsdbmonitor])
294 AC_MSG_RESULT([$BUILD_OVSDBMONITOR])
295 AM_CONDITIONAL([BUILD_OVSDBMONITOR], [test $BUILD_OVSDBMONITOR = yes])])
297 # OVS_LINK2_IFELSE(SOURCE1, SOURCE2, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
298 # -------------------------------------------------------------
299 # Based on AC_LINK_IFELSE, but tries to link both SOURCE1 and SOURCE2
302 # This macro is borrowed from acinclude.m4 in GNU PSPP, which has the
305 # Copyright (C) 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
306 # This file is free software; the Free Software Foundation
307 # gives unlimited permission to copy and/or distribute it,
308 # with or without modifications, as long as this notice is preserved.
310 m4_define([OVS_LINK2_IFELSE],
311 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
312 mv conftest.$ac_ext conftest1.$ac_ext
313 m4_ifvaln([$2], [AC_LANG_CONFTEST([$2])])dnl
314 mv conftest.$ac_ext conftest2.$ac_ext
315 rm -f conftest1.$ac_objext conftest2.$ac_objext conftest$ac_exeext
316 ovs_link2='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest1.$ac_ext conftest2.$ac_ext $LIBS >&5'
317 AS_IF([_AC_DO_STDERR($ovs_link2) && {
318 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
319 test ! -s conftest.err
320 } && test -s conftest$ac_exeext && {
321 test "$cross_compiling" = yes ||
322 AS_TEST_X([conftest$ac_exeext])
325 [echo "$as_me: failed source file 1 of 2 was:" >&5
326 sed 's/^/| /' conftest1.$ac_ext >&5
327 echo "$as_me: failed source file 2 of 2 was:" >&5
328 sed 's/^/| /' conftest2.$ac_ext >&5
330 dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
331 dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
332 dnl as it would interfere with the next link command.
333 rm -rf conftest.dSYM conftest1.dSYM conftest2.dSYM
334 rm -f core conftest.err conftest1.err conftest2.err
335 rm -f conftest1.$ac_objext conftest2.$ac_objext conftest*_ipa8_conftest*.oo
336 rm -f conftest$ac_exeext
337 rm -f m4_ifval([$1], [conftest1.$ac_ext]) m4_ifval([$2], [conftest1.$ac_ext])[]dnl
340 dnl Defines USE_LINKER_SECTIONS to 1 if the compiler supports putting
341 dnl variables in sections with user-defined names and the linker
342 dnl automatically defines __start_SECNAME and __stop_SECNAME symbols
343 dnl that designate the start and end of the sections.
344 AC_DEFUN([OVS_CHECK_LINKER_SECTIONS],
346 [for user-defined linker section support],
347 [ovs_cv_use_linker_sections],
350 [int a __attribute__((__section__("mysection"))) = 1;
351 int b __attribute__((__section__("mysection"))) = 2;
352 int c __attribute__((__section__("mysection"))) = 3;])],
355 extern int __start_mysection;
356 extern int __stop_mysection;],
357 [int n_ints = &__stop_mysection - &__start_mysection;
359 for (i = &__start_mysection; i < &__start_mysection + n_ints; i++) {
362 [ovs_cv_use_linker_sections=yes],
363 [ovs_cv_use_linker_sections=no])])
364 if test $ovs_cv_use_linker_sections = yes; then
365 AC_DEFINE([USE_LINKER_SECTIONS], [1],
366 [Define to 1 if the compiler support putting variables
367 into sections with user-defined names and the linker
368 automatically defines __start_SECNAME and __stop_SECNAME
369 symbols that designate the start and end of the section.])