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
102 m4_ifndef([PKG_CHECK_MODULES], [m4_fatal([Please install pkg-config.])])
103 PKG_CHECK_MODULES([SSL], [openssl],
106 if test "$ssl" = check; then
107 AC_MSG_WARN([Cannot find openssl:
111 OpenFlow connections over SSL will not be supported.
112 (You may use --disable-ssl to suppress this warning.)])
114 AC_MSG_ERROR([Cannot find openssl (use --disable-ssl to configure without SSL support)])
119 AC_SUBST([HAVE_OPENSSL])
120 AM_CONDITIONAL([HAVE_OPENSSL], [test "$HAVE_OPENSSL" = yes])
121 if test "$HAVE_OPENSSL" = yes; then
122 AC_DEFINE([HAVE_OPENSSL], [1], [Define to 1 if OpenSSL is installed.])
125 dnl Checks for libraries needed by lib/socket-util.c.
126 AC_DEFUN([OVS_CHECK_SOCKET_LIBS],
127 [AC_CHECK_LIB([socket], [connect])
128 AC_SEARCH_LIBS([gethostbyname], [resolv], [RESOLVER_LIBS=-lresolv])])
130 dnl Checks for the directory in which to store the PKI.
131 AC_DEFUN([OVS_CHECK_PKIDIR],
134 AC_HELP_STRING([--with-pkidir=DIR],
135 [PKI hierarchy directory [[LOCALSTATEDIR/lib/openvswitch/pki]]]),
137 [PKIDIR='${localstatedir}/lib/openvswitch/pki'])
140 dnl Checks for the directory in which to store pidfiles.
141 AC_DEFUN([OVS_CHECK_RUNDIR],
144 AC_HELP_STRING([--with-rundir=DIR],
145 [directory used for pidfiles
146 [[LOCALSTATEDIR/run/openvswitch]]]),
148 [RUNDIR='${localstatedir}/run/openvswitch'])
151 dnl Checks for the directory in which to store logs.
152 AC_DEFUN([OVS_CHECK_LOGDIR],
155 AC_HELP_STRING([--with-logdir=DIR],
156 [directory used for logs [[LOCALSTATEDIR/log/PACKAGE]]]),
158 [LOGDIR='${localstatedir}/log/${PACKAGE}'])
161 dnl Checks for the directory in which to store the Open vSwitch database.
162 AC_DEFUN([OVS_CHECK_DBDIR],
165 AC_HELP_STRING([--with-dbdir=DIR],
166 [directory used for conf.db [[SYSCONFDIR/PACKAGE]]]),
168 [DBDIR='${sysconfdir}/${PACKAGE}'])
171 dnl Defines HAVE_BACKTRACE if backtrace() is declared in <execinfo.h>
172 dnl and exists in libc.
173 AC_DEFUN([OVS_CHECK_BACKTRACE],
174 [AC_CHECK_HEADER([execinfo.h], [AC_CHECK_FUNCS([backtrace])])])
176 dnl Checks for __malloc_hook, etc., supported by glibc.
177 AC_DEFUN([OVS_CHECK_MALLOC_HOOKS],
179 [whether libc supports hooks for malloc and related functions],
180 [ovs_cv_malloc_hooks],
185 [(void) __malloc_hook;
186 (void) __realloc_hook;
187 (void) __free_hook;])],
188 [ovs_cv_malloc_hooks=yes],
189 [ovs_cv_malloc_hooks=no])])
190 if test $ovs_cv_malloc_hooks = yes; then
191 AC_DEFINE([HAVE_MALLOC_HOOKS], [1],
192 [Define to 1 if you have __malloc_hook, __realloc_hook, and
193 __free_hook in <malloc.h>.])
196 dnl Checks for valgrind/valgrind.h.
197 AC_DEFUN([OVS_CHECK_VALGRIND],
198 [AC_CHECK_HEADERS([valgrind/valgrind.h])])
200 dnl Checks for Python 2.x, x >= 4.
201 AC_DEFUN([OVS_CHECK_PYTHON],
203 [for Python 2.x for x >= 4],
205 [if test -n "$PYTHON"; then
206 ovs_cv_python=$PYTHON
209 for binary in python python2.4 python2.5; do
210 ovs_save_IFS=$IFS; IFS=$PATH_SEPARATOR
213 test -z "$dir" && dir=.
214 if test -x $dir/$binary && $dir/$binary -c 'import sys
215 if sys.hexversion >= 0x02040000 and sys.hexversion < 0x03000000:
219 ovs_cv_python=$dir/$binary
225 AC_SUBST([HAVE_PYTHON])
226 AM_MISSING_PROG([PYTHON], [python])
227 if test $ovs_cv_python != no; then
228 PYTHON=$ovs_cv_python
233 AM_CONDITIONAL([HAVE_PYTHON], [test "$HAVE_PYTHON" = yes])])
236 AC_DEFUN([OVS_CHECK_DOT],
240 [dnl "dot" writes -V output to stderr:
241 if (dot -V) 2>&1 | grep '^dot - [[gG]]raphviz version' >/dev/null 2>&1; then
246 AM_CONDITIONAL([HAVE_DOT], [test "$ovs_cv_dot" = yes])])
248 dnl Checks for pyuic4.
249 AC_DEFUN([OVS_CHECK_PYUIC4],
253 [if (pyuic4 --version) >/dev/null 2>&1; then
258 AM_MISSING_PROG([PYUIC4], [pyuic4])
259 if test $ovs_cv_pyuic4 != no; then
260 PYUIC4=$ovs_cv_pyuic4
263 dnl Checks whether $PYTHON supports the module given as $1
264 AC_DEFUN([OVS_CHECK_PYTHON_MODULE],
265 [AC_REQUIRE([OVS_CHECK_PYTHON])
267 [for $1 Python module],
268 [ovs_cv_py_[]AS_TR_SH([$1])],
269 [ovs_cv_py_[]AS_TR_SH([$1])=no
270 if test $HAVE_PYTHON = yes; then
271 AS_ECHO(["running $PYTHON -c 'import $1
273 sys.exit(0)'..."]) >&AS_MESSAGE_LOG_FD 2>&1
274 if $PYTHON -c 'import $1
276 sys.exit(0)' >&AS_MESSAGE_LOG_FD 2>&1; then
277 ovs_cv_py_[]AS_TR_SH([$1])=yes
281 dnl Checks for Python modules needed by ovsdbmonitor.
282 AC_DEFUN([OVS_CHECK_OVSDBMONITOR],
283 [OVS_CHECK_PYTHON_MODULE([PySide.QtCore])
284 OVS_CHECK_PYTHON_MODULE([PyQt4.QtCore])
285 OVS_CHECK_PYTHON_MODULE([twisted.conch.ssh])
286 OVS_CHECK_PYTHON_MODULE([twisted.internet])
287 OVS_CHECK_PYTHON_MODULE([twisted.application])
288 OVS_CHECK_PYTHON_MODULE([json])
289 OVS_CHECK_PYTHON_MODULE([zope.interface])
290 if (test $ovs_cv_py_PySide_QtCore = yes \
291 || test $ovs_cv_py_PyQt4_QtCore = yes) \
292 && test $ovs_cv_py_twisted_conch_ssh = yes \
293 && test $ovs_cv_py_twisted_internet = yes \
294 && test $ovs_cv_py_twisted_application = yes \
295 && test $ovs_cv_py_json = yes \
296 && test $ovs_cv_py_zope_interface = yes; then
297 BUILD_OVSDBMONITOR=yes
299 BUILD_OVSDBMONITOR=no
301 AC_MSG_CHECKING([whether to build ovsdbmonitor])
302 AC_MSG_RESULT([$BUILD_OVSDBMONITOR])
303 AM_CONDITIONAL([BUILD_OVSDBMONITOR], [test $BUILD_OVSDBMONITOR = yes])])
305 # OVS_LINK2_IFELSE(SOURCE1, SOURCE2, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
306 # -------------------------------------------------------------
307 # Based on AC_LINK_IFELSE, but tries to link both SOURCE1 and SOURCE2
310 # This macro is borrowed from acinclude.m4 in GNU PSPP, which has the
313 # Copyright (C) 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
314 # This file is free software; the Free Software Foundation
315 # gives unlimited permission to copy and/or distribute it,
316 # with or without modifications, as long as this notice is preserved.
318 m4_define([OVS_LINK2_IFELSE],
319 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
320 mv conftest.$ac_ext conftest1.$ac_ext
321 m4_ifvaln([$2], [AC_LANG_CONFTEST([$2])])dnl
322 mv conftest.$ac_ext conftest2.$ac_ext
323 rm -f conftest1.$ac_objext conftest2.$ac_objext conftest$ac_exeext
324 ovs_link2='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest1.$ac_ext conftest2.$ac_ext $LIBS >&5'
325 AS_IF([_AC_DO_STDERR($ovs_link2) && {
326 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
327 test ! -s conftest.err
328 } && test -s conftest$ac_exeext && {
329 test "$cross_compiling" = yes ||
330 AS_TEST_X([conftest$ac_exeext])
333 [echo "$as_me: failed source file 1 of 2 was:" >&5
334 sed 's/^/| /' conftest1.$ac_ext >&5
335 echo "$as_me: failed source file 2 of 2 was:" >&5
336 sed 's/^/| /' conftest2.$ac_ext >&5
338 dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
339 dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
340 dnl as it would interfere with the next link command.
341 rm -rf conftest.dSYM conftest1.dSYM conftest2.dSYM
342 rm -f core conftest.err conftest1.err conftest2.err
343 rm -f conftest1.$ac_objext conftest2.$ac_objext conftest*_ipa8_conftest*.oo
344 rm -f conftest$ac_exeext
345 rm -f m4_ifval([$1], [conftest1.$ac_ext]) m4_ifval([$2], [conftest1.$ac_ext])[]dnl
348 dnl Defines USE_LINKER_SECTIONS to 1 if the compiler supports putting
349 dnl variables in sections with user-defined names and the linker
350 dnl automatically defines __start_SECNAME and __stop_SECNAME symbols
351 dnl that designate the start and end of the sections.
352 AC_DEFUN([OVS_CHECK_LINKER_SECTIONS],
354 [for user-defined linker section support],
355 [ovs_cv_use_linker_sections],
358 [int a __attribute__((__section__("mysection"))) = 1;
359 int b __attribute__((__section__("mysection"))) = 2;
360 int c __attribute__((__section__("mysection"))) = 3;])],
363 extern int __start_mysection;
364 extern int __stop_mysection;],
365 [int n_ints = &__stop_mysection - &__start_mysection;
367 for (i = &__start_mysection; i < &__start_mysection + n_ints; i++) {
370 [ovs_cv_use_linker_sections=yes],
371 [ovs_cv_use_linker_sections=no])])
372 if test $ovs_cv_use_linker_sections = yes; then
373 AC_DEFINE([USE_LINKER_SECTIONS], [1],
374 [Define to 1 if the compiler support putting variables
375 into sections with user-defined names and the linker
376 automatically defines __start_SECNAME and __stop_SECNAME
377 symbols that designate the start and end of the section.])
380 [USE_LINKER_SECTIONS], [test $ovs_cv_use_linker_sections = yes])])
382 dnl Checks for groff.
383 AC_DEFUN([OVS_CHECK_GROFF],
387 [if (groff -v) >/dev/null 2>&1; then
392 AM_CONDITIONAL([HAVE_GROFF], [test "$ovs_cv_groff" = yes])])