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, if --enable-ssl is passed in.
64 AC_DEFUN([OVS_CHECK_OPENSSL],
67 [AC_HELP_STRING([--enable-ssl],
68 [Enable ssl support (requires libssl)])],
69 [case "${enableval}" in
72 (*) AC_MSG_ERROR([bad value ${enableval} for --enable-ssl]) ;;
76 if test "$ssl" = true; then
77 dnl Make sure that pkg-config is installed.
78 m4_pattern_forbid([PKG_CHECK_MODULES])
79 PKG_CHECK_MODULES([SSL], [libssl],
82 AC_MSG_WARN([Cannot find libssl:
86 OpenFlow connections over SSL will not be supported.])])
90 AC_SUBST([HAVE_OPENSSL])
91 AM_CONDITIONAL([HAVE_OPENSSL], [test "$HAVE_OPENSSL" = yes])
92 if test "$HAVE_OPENSSL" = yes; then
93 AC_DEFINE([HAVE_OPENSSL], [1], [Define to 1 if OpenSSL is installed.])
96 dnl Checks for libraries needed by lib/socket-util.c.
97 AC_DEFUN([OVS_CHECK_SOCKET_LIBS],
98 [AC_CHECK_LIB([socket], [connect])
99 AC_SEARCH_LIBS([gethostbyname], [resolv], [RESOLVER_LIBS=-lresolv])])
101 dnl Checks for the directory in which to store the PKI.
102 AC_DEFUN([OVS_CHECK_PKIDIR],
105 AC_HELP_STRING([--with-pkidir=DIR],
106 [PKI hierarchy directory [[DATADIR/openvswitch/pki]]]),
108 [PKIDIR='${pkgdatadir}/pki'])
111 dnl Checks for the directory in which to store pidfiles.
112 AC_DEFUN([OVS_CHECK_RUNDIR],
115 AC_HELP_STRING([--with-rundir=DIR],
116 [directory used for pidfiles [[LOCALSTATEDIR/run]]]),
118 [RUNDIR='${localstatedir}/run'])
121 dnl Checks for the directory in which to store logs.
122 AC_DEFUN([OVS_CHECK_LOGDIR],
125 AC_HELP_STRING([--with-logdir=DIR],
126 [directory used for logs [[LOCALSTATEDIR/log/PACKAGE]]]),
128 [LOGDIR='${localstatedir}/log/${PACKAGE}'])
131 dnl Checks for __malloc_hook, etc., supported by glibc.
132 AC_DEFUN([OVS_CHECK_MALLOC_HOOKS],
134 [whether libc supports hooks for malloc and related functions],
135 [ovs_cv_malloc_hooks],
140 [(void) __malloc_hook;
141 (void) __realloc_hook;
142 (void) __free_hook;])],
143 [ovs_cv_malloc_hooks=yes],
144 [ovs_cv_malloc_hooks=no])])
145 if test $ovs_cv_malloc_hooks = yes; then
146 AC_DEFINE([HAVE_MALLOC_HOOKS], [1],
147 [Define to 1 if you have __malloc_hook, __realloc_hook, and
148 __free_hook in <malloc.h>.])
151 dnl Checks for valgrind/valgrind.h.
152 AC_DEFUN([OVS_CHECK_VALGRIND],
153 [AC_CHECK_HEADERS([valgrind/valgrind.h])])
155 dnl Searches for a directory to put lockfiles for tty devices.
156 dnl Defines C preprocessor variable TTY_LOCK_DIR to a quoted string
157 dnl for that directory.
158 AC_DEFUN([OVS_CHECK_TTY_LOCK_DIR],
159 [AC_CACHE_CHECK([directory used for serial device lockfiles],
160 [ovs_cv_path_tty_locks],
161 [# This list of candidate directories is from minicom.
162 ovs_cv_path_tty_locks=none
163 for dir in /etc/locks /var/lock /usr/spool/locks \
164 /var/spool/locks /var/spool/lock \
165 /usr/spool/uucp /var/spool/uucp /var/run; do
166 if test -d $dir; then
167 ovs_cv_path_tty_locks=$dir
171 if test "$ovs_cv_path_tty_locks" = none; then
172 AC_MSG_ERROR([cannot find a directory for tty locks])
174 AC_DEFINE_UNQUOTED([TTY_LOCK_DIR], "$ovs_cv_path_tty_locks",
175 [Directory used for serial device lockfiles])])
177 dnl The following check is adapted from GNU PSPP.
178 dnl It searches for the ncurses library. If it finds it, it sets
179 dnl HAVE_CURSES to yes and sets NCURSES_LIBS and NCURSES_CFLAGS
180 dnl appropriate. Otherwise, it sets HAVE_CURSES to no.
181 AC_DEFUN([OVS_CHECK_CURSES],
182 [if test "$cross_compiling" != yes; then
183 AC_CHECK_PROGS([NCURSES_CONFIG], [ncurses5-config ncurses8-config])
185 if test "$NCURSES_CONFIG" = ""; then
186 AC_SEARCH_LIBS([tgetent], [ncurses],
187 [AC_CHECK_HEADERS([term.h curses.h],
192 CFLAGS="$CFLAGS $($NCURSES_CONFIG --cflags)"
193 AC_CHECK_HEADERS([term.h curses.h],
197 if test "$HAVE_CURSES" = yes; then
198 NCURSES_LIBS=$($NCURSES_CONFIG --libs)
199 NCURSES_CFLAGS=$($NCURSES_CONFIG --cflags)
200 AC_SUBST(NCURSES_CFLAGS)
201 AC_SUBST(NCURSES_LIBS)
204 AM_CONDITIONAL([HAVE_CURSES], [test "$HAVE_CURSES" = yes])])
206 dnl Checks for linux/vt.h.
207 AC_DEFUN([OVS_CHECK_LINUX_VT_H],
208 [AC_CHECK_HEADER([linux/vt.h],
209 [HAVE_LINUX_VT_H=yes],
210 [HAVE_LINUX_VT_H=no])
211 AM_CONDITIONAL([HAVE_LINUX_VT_H], [test "$HAVE_LINUX_VT_H" = yes])
212 if test "$HAVE_LINUX_VT_H" = yes; then
213 AC_DEFINE([HAVE_LINUX_VT_H], [1],
214 [Define to 1 if linux/vt.h is available.])
217 dnl Checks for libpcre.
218 AC_DEFUN([OVS_CHECK_PCRE],
219 [dnl Make sure that pkg-config is installed.
220 m4_pattern_forbid([PKG_CHECK_MODULES])
221 PKG_CHECK_MODULES([PCRE], [libpcre >= 7.2], [HAVE_PCRE=yes], [HAVE_PCRE=no])
222 AM_CONDITIONAL([HAVE_PCRE], [test "$HAVE_PCRE" = yes])
223 if test "$HAVE_PCRE" = yes; then
224 AC_DEFINE([HAVE_PCRE], [1], [Define to 1 if libpcre is installed.])
227 dnl Checks for Python 2.x, x >= 4.
228 AC_DEFUN([OVS_CHECK_PYTHON],
230 [for Python 2.x for x >= 4],
232 [if test -n "$PYTHON"; then
233 ovs_cv_python=$PYTHON
236 for binary in python python2.4 python2.5; do
237 ovs_save_IFS=$IFS; IFS=$PATH_SEPARATOR
240 test -z "$dir" && dir=.
241 if test -x $dir/$binary && $dir/$binary -c 'import sys
242 if sys.hexversion >= 0x02040000 and sys.hexversion < 0x03000000:
246 ovs_cv_python=$dir/$binary
252 AC_SUBST([HAVE_PYTHON])
253 AM_MISSING_PROG([PYTHON], [python])
254 if test $ovs_cv_python != no; then
255 PYTHON=$ovs_cv_python
260 AM_CONDITIONAL([HAVE_PYTHON], [test "$HAVE_PYTHON" = yes])])