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 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 (lcov|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 Netlink support.
50 AC_DEFUN([OVS_CHECK_NETLINK],
51 [AC_CHECK_HEADER([linux/netlink.h],
54 [#include <sys/socket.h>
55 #include <linux/types.h>
57 AM_CONDITIONAL([HAVE_NETLINK], [test "$HAVE_NETLINK" = yes])
58 if test "$HAVE_NETLINK" = yes; then
59 AC_DEFINE([HAVE_NETLINK], [1],
60 [Define to 1 if Netlink protocol is available.])
63 dnl Checks for OpenSSL.
64 AC_DEFUN([OVS_CHECK_OPENSSL],
67 [AC_HELP_STRING([--disable-ssl], [Disable OpenSSL support])],
68 [case "${enableval}" in
71 (*) AC_MSG_ERROR([bad value ${enableval} for --enable-ssl]) ;;
75 if test "$ssl" != false; then
76 dnl Make sure that pkg-config is installed.
77 m4_pattern_forbid([PKG_CHECK_MODULES])
78 PKG_CHECK_MODULES([SSL], [openssl],
81 if test "$ssl" = check; then
82 AC_MSG_WARN([Cannot find openssl:
86 OpenFlow connections over SSL will not be supported.
87 (You may use --disable-ssl to suppress this warning.)])
89 AC_MSG_ERROR([Cannot find openssl (use --disable-ssl to configure without SSL support)])
94 AC_SUBST([HAVE_OPENSSL])
95 AM_CONDITIONAL([HAVE_OPENSSL], [test "$HAVE_OPENSSL" = yes])
96 if test "$HAVE_OPENSSL" = yes; then
97 AC_DEFINE([HAVE_OPENSSL], [1], [Define to 1 if OpenSSL is installed.])
100 dnl Checks for libraries needed by lib/socket-util.c.
101 AC_DEFUN([OVS_CHECK_SOCKET_LIBS],
102 [AC_CHECK_LIB([socket], [connect])
103 AC_SEARCH_LIBS([gethostbyname], [resolv], [RESOLVER_LIBS=-lresolv])])
105 dnl Checks for the directory in which to store the PKI.
106 AC_DEFUN([OVS_CHECK_PKIDIR],
109 AC_HELP_STRING([--with-pkidir=DIR],
110 [PKI hierarchy directory [[DATADIR/openvswitch/pki]]]),
112 [PKIDIR='${pkgdatadir}/pki'])
115 dnl Checks for the directory in which to store pidfiles.
116 AC_DEFUN([OVS_CHECK_RUNDIR],
119 AC_HELP_STRING([--with-rundir=DIR],
120 [directory used for pidfiles
121 [[LOCALSTATEDIR/run/openvswitch]]]),
123 [RUNDIR='${localstatedir}/run/openvswitch'])
126 dnl Checks for the directory in which to store logs.
127 AC_DEFUN([OVS_CHECK_LOGDIR],
130 AC_HELP_STRING([--with-logdir=DIR],
131 [directory used for logs [[LOCALSTATEDIR/log/PACKAGE]]]),
133 [LOGDIR='${localstatedir}/log/${PACKAGE}'])
136 dnl Checks for __malloc_hook, etc., supported by glibc.
137 AC_DEFUN([OVS_CHECK_MALLOC_HOOKS],
139 [whether libc supports hooks for malloc and related functions],
140 [ovs_cv_malloc_hooks],
145 [(void) __malloc_hook;
146 (void) __realloc_hook;
147 (void) __free_hook;])],
148 [ovs_cv_malloc_hooks=yes],
149 [ovs_cv_malloc_hooks=no])])
150 if test $ovs_cv_malloc_hooks = yes; then
151 AC_DEFINE([HAVE_MALLOC_HOOKS], [1],
152 [Define to 1 if you have __malloc_hook, __realloc_hook, and
153 __free_hook in <malloc.h>.])
156 dnl Checks for valgrind/valgrind.h.
157 AC_DEFUN([OVS_CHECK_VALGRIND],
158 [AC_CHECK_HEADERS([valgrind/valgrind.h])])
160 dnl Checks for Python 2.x, x >= 4.
161 AC_DEFUN([OVS_CHECK_PYTHON],
163 [for Python 2.x for x >= 4],
165 [if test -n "$PYTHON"; then
166 ovs_cv_python=$PYTHON
169 for binary in python python2.4 python2.5; do
170 ovs_save_IFS=$IFS; IFS=$PATH_SEPARATOR
173 test -z "$dir" && dir=.
174 if test -x $dir/$binary && $dir/$binary -c 'import sys
175 if sys.hexversion >= 0x02040000 and sys.hexversion < 0x03000000:
179 ovs_cv_python=$dir/$binary
185 AC_SUBST([HAVE_PYTHON])
186 AM_MISSING_PROG([PYTHON], [python])
187 if test $ovs_cv_python != no; then
188 PYTHON=$ovs_cv_python
193 AM_CONDITIONAL([HAVE_PYTHON], [test "$HAVE_PYTHON" = yes])])
196 AC_DEFUN([OVS_CHECK_DOT],
200 [dnl "dot" writes -V output to stderr:
201 if (dot -V) 2>&1 | grep '^dot - [[gG]]raphviz version' >/dev/null 2>&1; then
206 AM_CONDITIONAL([HAVE_DOT], [test "$ovs_cv_dot" = yes])])
208 dnl Checks for pyuic4.
209 AC_DEFUN([OVS_CHECK_PYUIC4],
213 [if (pyuic4 --version) >/dev/null 2>&1; then
218 AM_MISSING_PROG([PYUIC4], [pyuic4])
219 if test $ovs_cv_pyuic4 != no; then
220 PYUIC4=$ovs_cv_pyuic4
223 dnl Checks whether $PYTHON supports the module given as $1
224 AC_DEFUN([OVS_CHECK_PYTHON_MODULE],
225 [AC_REQUIRE([OVS_CHECK_PYTHON])
227 [for $1 Python module],
228 [ovs_cv_py_[]AS_TR_SH([$1])],
229 [ovs_cv_py_[]AS_TR_SH([$1])=no
230 if test $HAVE_PYTHON = yes; then
231 AS_ECHO(["running $PYTHON -c 'import $1
233 sys.exit(0)'..."]) >&AS_MESSAGE_LOG_FD 2>&1
234 if $PYTHON -c 'import $1
236 sys.exit(0)' >&AS_MESSAGE_LOG_FD 2>&1; then
237 ovs_cv_py_[]AS_TR_SH([$1])=yes
241 dnl Checks for Python modules needed by ovsdbmonitor.
242 AC_DEFUN([OVS_CHECK_OVSDBMONITOR],
243 [OVS_CHECK_PYTHON_MODULE([PySide.QtCore])
244 OVS_CHECK_PYTHON_MODULE([PyQt4.QtCore])
245 OVS_CHECK_PYTHON_MODULE([twisted.conch.ssh])
246 OVS_CHECK_PYTHON_MODULE([twisted.internet])
247 OVS_CHECK_PYTHON_MODULE([twisted.application])
248 OVS_CHECK_PYTHON_MODULE([json])
249 OVS_CHECK_PYTHON_MODULE([zope.interface])
250 if (test $ovs_cv_py_PySide_QtCore = yes \
251 || test $ovs_cv_py_PyQt4_QtCore = yes) \
252 && test $ovs_cv_py_twisted_conch_ssh = yes \
253 && test $ovs_cv_py_twisted_internet = yes \
254 && test $ovs_cv_py_twisted_application = yes \
255 && test $ovs_cv_py_json = yes \
256 && test $ovs_cv_py_zope_interface = yes; then
257 BUILD_OVSDBMONITOR=yes
259 BUILD_OVSDBMONITOR=no
261 AC_MSG_CHECKING([whether to build ovsdbmonitor])
262 AC_MSG_RESULT([$BUILD_OVSDBMONITOR])
263 AM_CONDITIONAL([BUILD_OVSDBMONITOR], [test $BUILD_OVSDBMONITOR = yes])])
265 # OVS_LINK2_IFELSE(SOURCE1, SOURCE2, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
266 # -------------------------------------------------------------
267 # Based on AC_LINK_IFELSE, but tries to link both SOURCE1 and SOURCE2
270 # This macro is borrowed from acinclude.m4 in GNU PSPP, which has the
273 # Copyright (C) 2005, 2006, 2007, 2009 Free Software Foundation, Inc.
274 # This file is free software; the Free Software Foundation
275 # gives unlimited permission to copy and/or distribute it,
276 # with or without modifications, as long as this notice is preserved.
278 m4_define([OVS_LINK2_IFELSE],
279 [m4_ifvaln([$1], [AC_LANG_CONFTEST([$1])])dnl
280 mv conftest.$ac_ext conftest1.$ac_ext
281 m4_ifvaln([$2], [AC_LANG_CONFTEST([$2])])dnl
282 mv conftest.$ac_ext conftest2.$ac_ext
283 rm -f conftest1.$ac_objext conftest2.$ac_objext conftest$ac_exeext
284 ovs_link2='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest1.$ac_ext conftest2.$ac_ext $LIBS >&5'
285 AS_IF([_AC_DO_STDERR($ovs_link2) && {
286 test -z "$ac_[]_AC_LANG_ABBREV[]_werror_flag" ||
287 test ! -s conftest.err
288 } && test -s conftest$ac_exeext && {
289 test "$cross_compiling" = yes ||
290 AS_TEST_X([conftest$ac_exeext])
293 [echo "$as_me: failed source file 1 of 2 was:" >&5
294 sed 's/^/| /' conftest1.$ac_ext >&5
295 echo "$as_me: failed source file 2 of 2 was:" >&5
296 sed 's/^/| /' conftest2.$ac_ext >&5
298 dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
299 dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
300 dnl as it would interfere with the next link command.
301 rm -rf conftest.dSYM conftest1.dSYM conftest2.dSYM
302 rm -f core conftest.err conftest1.err conftest2.err
303 rm -f conftest1.$ac_objext conftest2.$ac_objext conftest*_ipa8_conftest*.oo
304 rm -f conftest$ac_exeext
305 rm -f m4_ifval([$1], [conftest1.$ac_ext]) m4_ifval([$2], [conftest1.$ac_ext])[]dnl
308 dnl Defines USE_LINKER_SECTIONS to 1 if the compiler supports putting
309 dnl variables in sections with user-defined names and the linker
310 dnl automatically defines __start_SECNAME and __stop_SECNAME symbols
311 dnl that designate the start and end of the sections.
312 AC_DEFUN([OVS_CHECK_LINKER_SECTIONS],
314 [for user-defined linker section support],
315 [ovs_cv_use_linker_sections],
318 [int a __attribute__((__section__("mysection"))) = 1;
319 int b __attribute__((__section__("mysection"))) = 2;
320 int c __attribute__((__section__("mysection"))) = 3;])],
323 extern int __start_mysection;
324 extern int __stop_mysection;],
325 [int n_ints = &__stop_mysection - &__start_mysection;
327 for (i = &__start_mysection; i < &__start_mysection + n_ints; i++) {
330 [ovs_cv_use_linker_sections=yes],
331 [ovs_cv_use_linker_sections=no])])
332 if test $ovs_cv_use_linker_sections = yes; then
333 AC_DEFINE([USE_LINKER_SECTIONS], [1],
334 [Define to 1 if the compiler support putting variables
335 into sections with user-defined names and the linker
336 automatically defines __start_SECNAME and __stop_SECNAME
337 symbols that designate the start and end of the section.])
340 [USE_LINKER_SECTIONS], [test $ovs_cv_use_linker_sections = yes])])