3 # Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
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 Checks for --enable-coverage and updates CFLAGS and LDFLAGS appropriately.
18 AC_DEFUN([OVS_CHECK_COVERAGE],
19 [AC_REQUIRE([AC_PROG_CC])
22 [AC_HELP_STRING([--enable-coverage],
23 [Enable gcov coverage tool.])],
24 [case "${enableval}" in
25 (yes) coverage=true ;;
26 (no) coverage=false ;;
27 (*) AC_MSG_ERROR([bad value ${enableval} for --enable-coverage]) ;;
31 CFLAGS="$CFLAGS -O0 --coverage"
32 LDFLAGS="$LDFLAGS --coverage"
35 dnl Checks for --enable-ndebug and defines NDEBUG if it is specified.
36 AC_DEFUN([OVS_CHECK_NDEBUG],
39 [AC_HELP_STRING([--enable-ndebug],
40 [Disable debugging features for max performance])],
41 [case "${enableval}" in
44 (*) AC_MSG_ERROR([bad value ${enableval} for --enable-ndebug]) ;;
47 AM_CONDITIONAL([NDEBUG], [test x$ndebug = xtrue])])
49 dnl Checks for --enable-cache-time and defines CACHE_TIME if it is specified.
50 AC_DEFUN([OVS_CHECK_CACHE_TIME],
53 [AC_HELP_STRING([--enable-cache-time],
54 [Override time caching default (for testing only)])],
55 [case "${enableval}" in
58 (*) AC_MSG_ERROR([bad value ${enableval} for --enable-cache-time]) ;;
60 AC_DEFINE_UNQUOTED([CACHE_TIME], [$cache_time],
61 [Define to 1 to enable time caching, to 0 to disable time caching, or
62 leave undefined to use the default (as one should
66 AC_DEFUN([OVS_CHECK_ESX],
67 [AC_CHECK_HEADER([vmware.h],
70 AM_CONDITIONAL([ESX], [test "$ESX" = yes])
71 if test "$ESX" = yes; then
72 AC_DEFINE([ESX], [1], [Define to 1 if building on ESX.])
75 dnl Checks for Netlink support.
76 AC_DEFUN([OVS_CHECK_NETLINK],
77 [AC_CHECK_HEADER([linux/netlink.h],
80 [#include <sys/socket.h>
81 #include <linux/types.h>
83 AM_CONDITIONAL([HAVE_NETLINK], [test "$HAVE_NETLINK" = yes])
84 if test "$HAVE_NETLINK" = yes; then
85 AC_DEFINE([HAVE_NETLINK], [1],
86 [Define to 1 if Netlink protocol is available.])
89 dnl Checks for OpenSSL.
90 AC_DEFUN([OVS_CHECK_OPENSSL],
93 [AC_HELP_STRING([--disable-ssl], [Disable OpenSSL support])],
94 [case "${enableval}" in
97 (*) AC_MSG_ERROR([bad value ${enableval} for --enable-ssl]) ;;
101 if test "$ssl" != false; then
105 if test "$ssl" = check; then
106 AC_MSG_WARN([Cannot find openssl:
110 OpenFlow connections over SSL will not be supported.
111 (You may use --disable-ssl to suppress this warning.)])
113 AC_MSG_ERROR([Cannot find openssl (use --disable-ssl to configure without SSL support)])
118 AC_SUBST([HAVE_OPENSSL])
119 AM_CONDITIONAL([HAVE_OPENSSL], [test "$HAVE_OPENSSL" = yes])
120 if test "$HAVE_OPENSSL" = yes; then
121 AC_DEFINE([HAVE_OPENSSL], [1], [Define to 1 if OpenSSL is installed.])
124 dnl Checks for libraries needed by lib/socket-util.c.
125 AC_DEFUN([OVS_CHECK_SOCKET_LIBS],
126 [AC_CHECK_LIB([socket], [connect])
127 AC_SEARCH_LIBS([gethostbyname], [resolv], [RESOLVER_LIBS=-lresolv])])
129 dnl Checks for the directory in which to store the PKI.
130 AC_DEFUN([OVS_CHECK_PKIDIR],
133 AC_HELP_STRING([--with-pkidir=DIR],
134 [PKI hierarchy directory [[LOCALSTATEDIR/lib/openvswitch/pki]]]),
136 [PKIDIR='${localstatedir}/lib/openvswitch/pki'])
139 dnl Checks for the directory in which to store pidfiles.
140 AC_DEFUN([OVS_CHECK_RUNDIR],
143 AC_HELP_STRING([--with-rundir=DIR],
144 [directory used for pidfiles
145 [[LOCALSTATEDIR/run/openvswitch]]]),
147 [RUNDIR='${localstatedir}/run/openvswitch'])
150 dnl Checks for the directory in which to store logs.
151 AC_DEFUN([OVS_CHECK_LOGDIR],
154 AC_HELP_STRING([--with-logdir=DIR],
155 [directory used for logs [[LOCALSTATEDIR/log/PACKAGE]]]),
157 [LOGDIR='${localstatedir}/log/${PACKAGE}'])
160 dnl Checks for the directory in which to store the Open vSwitch database.
161 AC_DEFUN([OVS_CHECK_DBDIR],
164 AC_HELP_STRING([--with-dbdir=DIR],
165 [directory used for conf.db [[SYSCONFDIR/PACKAGE]]]),
167 [DBDIR='${sysconfdir}/${PACKAGE}'])
170 dnl Defines HAVE_BACKTRACE if backtrace() is found.
171 AC_DEFUN([OVS_CHECK_BACKTRACE],
172 [AC_SEARCH_LIBS([backtrace], [execinfo ubacktrace])])
174 dnl Checks for __malloc_hook, etc., supported by glibc.
175 AC_DEFUN([OVS_CHECK_MALLOC_HOOKS],
177 [whether libc supports hooks for malloc and related functions],
178 [ovs_cv_malloc_hooks],
183 [(void) __malloc_hook;
184 (void) __realloc_hook;
185 (void) __free_hook;])],
186 [ovs_cv_malloc_hooks=yes],
187 [ovs_cv_malloc_hooks=no])])
188 if test $ovs_cv_malloc_hooks = yes; then
189 AC_DEFINE([HAVE_MALLOC_HOOKS], [1],
190 [Define to 1 if you have __malloc_hook, __realloc_hook, and
191 __free_hook in <malloc.h>.])
194 dnl Checks for valgrind/valgrind.h.
195 AC_DEFUN([OVS_CHECK_VALGRIND],
196 [AC_CHECK_HEADERS([valgrind/valgrind.h])])
198 dnl Checks for Python 2.x, x >= 4.
199 AC_DEFUN([OVS_CHECK_PYTHON],
201 [for Python 2.x for x >= 4],
203 [if test -n "$PYTHON"; then
204 ovs_cv_python=$PYTHON
207 for binary in python python2.4 python2.5; do
208 ovs_save_IFS=$IFS; IFS=$PATH_SEPARATOR
211 test -z "$dir" && dir=.
212 if test -x $dir/$binary && $dir/$binary -c 'import sys
213 if sys.hexversion >= 0x02040000 and sys.hexversion < 0x03000000:
217 ovs_cv_python=$dir/$binary
223 AC_SUBST([HAVE_PYTHON])
224 AM_MISSING_PROG([PYTHON], [python])
225 if test $ovs_cv_python != no; then
226 PYTHON=$ovs_cv_python
231 AM_CONDITIONAL([HAVE_PYTHON], [test "$HAVE_PYTHON" = yes])])
234 AC_DEFUN([OVS_CHECK_DOT],
238 [dnl "dot" writes -V output to stderr:
239 if (dot -V) 2>&1 | grep '^dot - [[gG]]raphviz version' >/dev/null 2>&1; then
244 AM_CONDITIONAL([HAVE_DOT], [test "$ovs_cv_dot" = yes])])
246 dnl Checks for pyuic4.
247 AC_DEFUN([OVS_CHECK_PYUIC4],
251 [if (pyuic4 --version) >/dev/null 2>&1; then
256 AM_MISSING_PROG([PYUIC4], [pyuic4])
257 if test $ovs_cv_pyuic4 != no; then
258 PYUIC4=$ovs_cv_pyuic4
261 dnl Checks whether $PYTHON supports the module given as $1
262 AC_DEFUN([OVS_CHECK_PYTHON_MODULE],
263 [AC_REQUIRE([OVS_CHECK_PYTHON])
265 [for $1 Python module],
266 [ovs_cv_py_[]AS_TR_SH([$1])],
267 [ovs_cv_py_[]AS_TR_SH([$1])=no
268 if test $HAVE_PYTHON = yes; then
269 AS_ECHO(["running $PYTHON -c 'import $1
271 sys.exit(0)'..."]) >&AS_MESSAGE_LOG_FD 2>&1
272 if $PYTHON -c 'import $1
274 sys.exit(0)' >&AS_MESSAGE_LOG_FD 2>&1; then
275 ovs_cv_py_[]AS_TR_SH([$1])=yes
279 dnl Checks for Python modules needed by ovsdbmonitor.
280 AC_DEFUN([OVS_CHECK_OVSDBMONITOR],
281 [OVS_CHECK_PYTHON_MODULE([PySide.QtCore])
282 OVS_CHECK_PYTHON_MODULE([PyQt4.QtCore])
283 OVS_CHECK_PYTHON_MODULE([twisted.conch.ssh])
284 OVS_CHECK_PYTHON_MODULE([twisted.internet])
285 OVS_CHECK_PYTHON_MODULE([twisted.application])
286 OVS_CHECK_PYTHON_MODULE([json])
287 OVS_CHECK_PYTHON_MODULE([zope.interface])
288 if (test $ovs_cv_py_PySide_QtCore = yes \
289 || test $ovs_cv_py_PyQt4_QtCore = yes) \
290 && test $ovs_cv_py_twisted_conch_ssh = yes \
291 && test $ovs_cv_py_twisted_internet = yes \
292 && test $ovs_cv_py_twisted_application = yes \
293 && test $ovs_cv_py_json = yes \
294 && test $ovs_cv_py_zope_interface = yes; then
295 BUILD_OVSDBMONITOR=yes
297 BUILD_OVSDBMONITOR=no
299 AC_MSG_CHECKING([whether to build ovsdbmonitor])
300 AC_MSG_RESULT([$BUILD_OVSDBMONITOR])
301 AM_CONDITIONAL([BUILD_OVSDBMONITOR], [test $BUILD_OVSDBMONITOR = yes])])
303 # OVS_LINK2_IFELSE(SOURCE1, SOURCE2, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
304 # -------------------------------------------------------------
305 # Based on AC_LINK_IFELSE, but tries to link both SOURCE1 and SOURCE2
308 # This macro is borrowed from acinclude.m4 in GNU PSPP, which has the
311 # Copyright (C) 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
312 # This file is free software; the Free Software Foundation
313 # gives unlimited permission to copy and/or distribute it,
314 # with or without modifications, as long as this notice is preserved.
316 m4_define([OVS_LINK2_IFELSE],
317 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
318 mv conftest.$ac_ext conftest1.$ac_ext
319 m4_ifvaln([$2], [AC_LANG_CONFTEST([$2])])dnl
320 mv conftest.$ac_ext conftest2.$ac_ext
321 rm -f conftest1.$ac_objext conftest2.$ac_objext conftest$ac_exeext
322 ovs_link2='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest1.$ac_ext conftest2.$ac_ext $LIBS >&5'
323 AS_IF([_AC_DO_STDERR($ovs_link2) && {
324 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
325 test ! -s conftest.err
326 } && test -s conftest$ac_exeext && {
327 test "$cross_compiling" = yes ||
328 AS_TEST_X([conftest$ac_exeext])
331 [echo "$as_me: failed source file 1 of 2 was:" >&5
332 sed 's/^/| /' conftest1.$ac_ext >&5
333 echo "$as_me: failed source file 2 of 2 was:" >&5
334 sed 's/^/| /' conftest2.$ac_ext >&5
336 dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
337 dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
338 dnl as it would interfere with the next link command.
339 rm -rf conftest.dSYM conftest1.dSYM conftest2.dSYM
340 rm -f core conftest.err conftest1.err conftest2.err
341 rm -f conftest1.$ac_objext conftest2.$ac_objext conftest*_ipa8_conftest*.oo
342 rm -f conftest$ac_exeext
343 rm -f m4_ifval([$1], [conftest1.$ac_ext]) m4_ifval([$2], [conftest1.$ac_ext])[]dnl
346 dnl Defines USE_LINKER_SECTIONS to 1 if the compiler supports putting
347 dnl variables in sections with user-defined names and the linker
348 dnl automatically defines __start_SECNAME and __stop_SECNAME symbols
349 dnl that designate the start and end of the sections.
350 AC_DEFUN([OVS_CHECK_LINKER_SECTIONS],
352 [for user-defined linker section support],
353 [ovs_cv_use_linker_sections],
356 [int a __attribute__((__section__("mysection"))) = 1;
357 int b __attribute__((__section__("mysection"))) = 2;
358 int c __attribute__((__section__("mysection"))) = 3;])],
361 extern int __start_mysection;
362 extern int __stop_mysection;],
363 [int n_ints = &__stop_mysection - &__start_mysection;
365 for (i = &__start_mysection; i < &__start_mysection + n_ints; i++) {
368 [ovs_cv_use_linker_sections=yes],
369 [ovs_cv_use_linker_sections=no])])
370 if test $ovs_cv_use_linker_sections = yes; then
371 AC_DEFINE([USE_LINKER_SECTIONS], [1],
372 [Define to 1 if the compiler support putting variables
373 into sections with user-defined names and the linker
374 automatically defines __start_SECNAME and __stop_SECNAME
375 symbols that designate the start and end of the section.])
378 [USE_LINKER_SECTIONS], [test $ovs_cv_use_linker_sections = yes])])
380 dnl Checks for groff.
381 AC_DEFUN([OVS_CHECK_GROFF],
385 [if (groff -v) >/dev/null 2>&1; then
390 AM_CONDITIONAL([HAVE_GROFF], [test "$ovs_cv_groff" = yes])])