vde-2/configure.ac

   1 #                                               -*- Autoconf -*-
   2 # Process this file with autoconf to produce a configure script.
   3
   4 AC_PREREQ(2.59)
   5 AC_INIT([vde2],[2.3.1],[info@v2.cs.unibo.it])
   6 AC_CONFIG_MACRO_DIR([m4])
   7 AM_INIT_AUTOMAKE([foreign dist-bzip2 subdir-objects])
   8 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
   9 AC_CONFIG_SRCDIR([include/vde.h])
  10 AC_CONFIG_HEADER([include/config.h])
  11 AC_CONFIG_LIBOBJ_DIR(src/common)
  12
  13 # Checks for programs.
  14 AC_PROG_CXX
  15 AC_PROG_CC
  16 AC_PROG_INSTALL
  17 AC_PROG_LN_S
  18 AC_PROG_LIBTOOL
  19 AM_PROG_CC_C_O
  20
  21 AC_DEFINE_UNQUOTED(MODULES_EXT, "$shrext_cmds", [Extension of shared objects])
  22
  23 # Checks for libraries.
  24 AC_CHECK_LIB([dl], [dlopen])
  25 AC_CHECK_LIB([crypto], [EVP_EncryptInit],
  26                 [add_cryptcab_support=yes],
  27                 [add_cryptcab_support=no ; warn_cryptcab=yes])
  28
  29 AM_PATH_PYTHON([2.5], [add_python_support=yes], [add_python_support=warn])
  30 PYTHONINCLUDEDIR=`python2.5 -c "from distutils.sysconfig import get_python_inc; print get_python_inc();"`
  31 AC_CHECK_HEADERS([$PYTHONINCLUDEDIR/Python.h], [add_python_support=yes],
  32                 [add_python_support=no; warn_python=no])
  33 AC_CHECK_LIB([pcap], [pcap_open_dead],
  34                 [add_pcap=yes],
  35                 [add_pcap=no ; warn_pcap=yes])
  36 AC_SUBST(PYTHONINCLUDEDIR)
  37
  38 # Checks for header files.
  39 AC_HEADER_STDC
  40 AC_HEADER_SYS_WAIT
  41 AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h netinet/in.h stddef.h stdint.h stdlib.h string.h strings.h sys/ioctl.h sys/param.h sys/socket.h sys/time.h syslog.h termio.h termios.h unistd.h sys/filio.h sys/bitypes.h sys/wait.h sys/select.h sys/signal.h sys/stropts.h termios.h sys/type32.h])
  42
  43 AC_CHECK_HEADERS([syslimits.h sys/syslimits.h])
  44
  45 AC_CHECK_HEADERS([openssl/blowfish.h],
  46                  [],
  47                  [add_cryptcab_support=no ; warn_cryptcab=yes])
  48
  49 # Checks for typedefs, structures, and compiler characteristics.
  50 AC_C_CONST
  51 AC_C_INLINE
  52 AC_C_BIGENDIAN
  53 AC_C_PROTOTYPES
  54 AC_TYPE_MODE_T
  55 AC_TYPE_PID_T
  56 AC_TYPE_SIZE_T
  57 AC_HEADER_TIME
  58
  59 # Checks for library functions.
  60 AC_FUNC_CHOWN
  61 AC_FUNC_FORK
  62 AC_PROG_GCC_TRADITIONAL
  63 AC_FUNC_MALLOC
  64 AC_FUNC_MEMCMP
  65 AC_FUNC_REALLOC
  66 AC_FUNC_SELECT_ARGTYPES
  67 AC_FUNC_VPRINTF
  68 AC_CHECK_FUNCS([atexit dup2 gethostbyname gethostname gettimeofday inet_ntoa memmove memset putenv select setenv socket strchr strdup strerror strstr uname inet_aton sprintf readv random srandom index bcmp drand48 memmove gethostid revoke fchmod getopt_long_only funopen])
  69 AC_REPLACE_FUNCS([open_memstream strndup])
  70 AC_CHECK_FUNC([poll],
  71         [
  72                 AC_MSG_CHECKING([for poll sanity])
  73                 if expr "$build_os" : "darwin*" > /dev/null; then
  74                         AC_MSG_RESULT([present but broken, emulating with select])
  75                         AC_LIBOBJ([poll])
  76                         AC_DEFINE([poll], [vde_poll], [Define to vde_poll if the replacement function should be used.])
  77                 else
  78                         AC_DEFINE([HAVE_POLL], 1, [Define to 1 if your system has a working poll() function.])
  79                         AC_MSG_RESULT([yes])
  80                 fi
  81         ],
  82         [])
  83
  84 # All other nice checks I have to make for recostructing missing parts of
  85 # slirp's config.h file
  86 AC_CHECK_SIZEOF(char)
  87 AC_CHECK_SIZEOF(short)
  88 AC_CHECK_SIZEOF(int)
  89 AC_CHECK_SIZEOF(char *)
  90
  91 # Define VDE_LINUX or VDE_DARWIN
  92 case "$build_os" in
  93         linux*)
  94                 AC_DEFINE([VDE_LINUX], 1, [If defined, this is a Linux system])
  95                 ;;
  96         darwin*)
  97                 AC_DEFINE([VDE_DARWIN], 1, [If defined, this is a Darwin system])
  98                 darwin_gcc=yes
  99                 ;;
 100         freebsd*)
 101                 AC_DEFINE([VDE_FREEBSD], 1, [If defined, this is a FreeBSD system])
 102                 ;;
 103         *)
 104                 AC_MSG_ERROR([Unsupported architecture: $build_os. At the moment, only
 105 Linux, Darwin and FreeBSD are supported. Contributions are appreciated! :-)])
 106                 ;;
 107 esac
 108
 109 # Enable profiling options
 110 AC_ARG_ENABLE([profile],
 111         AS_HELP_STRING([--enable-profile],
 112                 [Compile with debugging/profiling options]),
 113         [if test $enableval = "yes"; then enable_profile=yes; fi])
 114
 115 # Enable experimental features
 116 AC_ARG_ENABLE([experimental],
 117         AS_HELP_STRING([--enable-experimental],
 118                 [Enable experimental features (async notifies, plugin support, packet counter)]),
 119         [if test $enableval = "yes"; then enable_experimental=yes; fi])
 120
 121 # Disable vde_cryptcab? (depends on ssl, maybe unwanted)
 122 AC_ARG_ENABLE([cryptcab],
 123         AS_HELP_STRING([--disable-cryptcab],
 124                 [Disable libcrypto-dependend vde_cryptcab compilation]),
 125         [if test $enableval = "no" ; then add_cryptcab_support=no ; warn_cryptcab=no ; fi])
 126
 127 # Check of tuntap device
 128 AC_ARG_ENABLE([tuntap],
 129     AS_HELP_STRING([--disable-tuntap],
 130       [Disable tuntap compilation]), [:],
 131         [case "$build_os" in
 132                 linux*)
 133                         AC_CHECK_HEADER([linux/if_tun.h],
 134                                 [AC_DEFINE([HAVE_TUNTAP], 1, [If defined, tuntap support is compiled in])],
 135                                 [warn_tuntap=yes])
 136                         can_make_libvdetap=yes
 137                         can_make_vdetunctl=yes
 138                         ;;
 139                 darwin*)
 140                         # I don't use AC_CHECK_FILES because I need test -e and not test -r
 141                         for i in /dev/tap0 /Library/Extensions/tap.kext ; do
 142                                 AC_MSG_CHECKING([for $i])
 143                                 if test -e "$i" ; then
 144                                         AC_MSG_RESULT([yes])
 145                                         definename="`echo "$i" | tr "a-z*" "A-ZP" | tr -c "0-9A-Z" "_"`"
 146                                         AC_DEFINE_UNQUOTED([HAVE_$definename])
 147                                         eval HAVE_$definename=yes
 148                                 else
 149                                         AC_MSG_RESULT([no])
 150                                         warn_tuntap=yes
 151                                 fi
 152                         done
 153
 154                         if test "$HAVE__DEV_TAP0_" ; then
 155                                 AC_DEFINE([HAVE_TUNTAP], 1, [If defined, tuntap support is compiled in])
 156                                 if ! test "$HAVE__LIBRARY_EXTENSIONS_TAP_KEXT_" -o "$HAVE__SYSTEM_LIBRARY_EXTENSIONS_TAP_KEXT_" ; then
 157                                         AC_MSG_WARN([/dev/tap0 exists, but the kext cannot be found. Let's hope your
 158 configuration does work...])
 159                                 fi
 160                         else
 161                                 warn_tuntap=yes
 162                                 AC_MSG_WARN([You do not have tuntap support. You can get it here:
 163 http://tuntaposx.sourceforge.net/])
 164                         fi
 165                         ;;
 166                 freebsd*)
 167                         AC_CHECK_HEADER([net/if_tun.h],
 168                                 [AC_DEFINE([HAVE_TUNTAP], 1, [If defined, tuntap support is compiled in])],
 169                                 [warn_tuntap=yes])
 170                         ;;
 171         esac])
 172
 173 # Disable pcap support (pdump)? (depends on libpcap, maybe unwanted)
 174 AC_ARG_ENABLE([pcap],
 175         AS_HELP_STRING([--disable-pcap],
 176                 [Disable pcap support (pdump plugin)]),
 177         [if test $enableval = "no" ; then add_pcap=no ; warn_pcap=no ; fi])
 178
 179 AC_ARG_ENABLE([kernel-switch],
 180         AS_HELP_STRING([--enable-kernel-switch],
 181                 [Compile support for in-kernel switch. ]),
 182         [if test $enableval = "yes"; then
 183                 enable_kernel_switch=yes
 184                 AC_DEFINE([USE_IPN], 1, [If defined, enable support for IPN socket])
 185         fi])
 186
 187 AM_CONDITIONAL(ENABLE_CRYPTCAB, test "$add_cryptcab_support" = yes)
 188 AM_CONDITIONAL(ENABLE_PYTHON, test "$add_python_support" = yes)
 189 AM_CONDITIONAL(ENABLE_PCAP, test "$add_pcap" = yes)
 190 AM_CONDITIONAL(CAN_MAKE_LIBVDETAP, test "$can_make_libvdetap" = yes)
 191 AM_CONDITIONAL(CAN_MAKE_VDETUNCTL, test "$can_make_vdetunctl" = yes)
 192 AM_CONDITIONAL(ENABLE_EXPERIMENTAL, test "$enable_experimental" = yes)
 193 AM_CONDITIONAL(ENABLE_PROFILE, test "$enable_profile" = yes)
 194 AM_CONDITIONAL(DARWIN_GCC, test "$darwin_gcc" = yes)
 195 AM_CONDITIONAL(ENABLE_KERNEL_SWITCH, test "$enable_kernel_switch" = yes)
 196
 197
 198 CFLAGS="-Wall -O2 $CFLAGS"
 199 AC_SUBST(CFLAGS)
 200
 201 AC_CONFIG_FILES(
 202                 [Makefile]
 203                 [doc/Makefile]
 204                 [include/Makefile]
 205                 [man/Makefile]
 206                 [src/Makefile]
 207                 [src/lib/Makefile]
 208                 [src/lib/vdesnmp.pc]
 209                 [src/lib/vdemgmt.pc]
 210                 [src/lib/vdeplug.pc]
 211                 [src/lib/vdehist.pc]
 212                 [src/lib/python/Makefile]
 213                 [src/vde_switch/Makefile]
 214                 [src/kvde_switch/Makefile]
 215                 [src/vde_over_ns/Makefile]
 216                 [src/common/Makefile]
 217                 [src/vdetaplib/Makefile]
 218                 [src/vde_l3/Makefile]
 219                 [src/vde_cryptcab/Makefile]
 220                 [src/slirpvde/Makefile]
 221                 [src/vde_switch/plugins/Makefile]
 222                 )
 223 AC_OUTPUT
 224
 225
 226 echo
 227 echo
 228 echo "Configure results:"
 229 echo
 230 if test x$add_cryptcab_support = "xyes" ; then
 231         echo " + VDE CryptCab............ enabled"
 232 else
 233         echo " - VDE CryptCab............ disabled"
 234 fi
 235
 236 if test x$add_python_support = "xyes" ; then
 237         echo " + Python Libraries........ enabled"
 238 else
 239         echo " - Python Libraries........ disabled"
 240 fi
 241
 242 if test x$warn_tuntap = "xyes" ; then
 243         echo " - TAP support............. disabled"
 244 else
 245         echo " + TAP support............. enabled"
 246 fi
 247
 248 if test x$add_pcap = "xyes" ; then
 249         echo " + pcap support............ enabled"
 250 else
 251         echo " - pcap support............ disabled"
 252 fi
 253
 254 if test x$enable_experimental = "xyes" ; then
 255         echo " + Experimental features... enabled"
 256 else
 257         echo " - Experimental features... disabled"
 258 fi
 259
 260 if test x$enable_profile = "xyes" ; then
 261         echo " + Profiling options....... enabled"
 262 else
 263         echo " - Profiling options....... disabled"
 264 fi
 265
 266 if test x$enable_kernel_switch = "xyes" ; then
 267         echo " + Kernel switch........... enabled"
 268 else
 269         echo " - Kernel switch........... disabled"
 270 fi
 271
 272 echo
 273 echo
 274 if ! test x$add_cryptcab_support = "xyes" ; then
 275         if test x$warn_cryptcab = "xyes" ; then
 276                 AC_MSG_WARN([VDE CryptCab support has been disabled because libcrypto is
 277 not installed on your system, or because openssl/blowfish.h could not be
 278 found. Please install them if you want CryptCab to be compiled and installed.])
 279         fi
 280 fi
 281
 282 if ! test x$add_python_support = "xyes" ; then
 283         if test x$warn_python = "xyes" ; then
 284                 AC_MSG_WARN([Python libraries support has been disabled because python is
 285 not installed on your system, or because it could not be
 286 found. Please install it if you want Python libraries to be compiled and installed.])
 287         fi
 288 fi
 289
 290 if ! test x$add_pcap = "xyes" ; then
 291         if test x$warn_pcap = "xyes" ; then
 292                 AC_MSG_WARN([VDE vde_pcapplug and packet dump plugin have been disabled because
 293 libpcap is not installed on your system, or because it's too old.
 294 Please install it if you want vde_pcapplug and pdump to be compiled and installed.])
 295         fi
 296 fi
 297
 298 echo
 299 echo "Type 'make' to compile $PACKAGE $VERSION,"
 300 echo "or type 'make V=1' for verbose compiling"
 301 echo "and then type 'make install' to install it into $prefix"
 302 echo