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, [2.1.5], renzo@cs.unibo.it)
   6 AM_INIT_AUTOMAKE([foreign])
   7 AC_CONFIG_SRCDIR([vde.h])
   8 AC_CONFIG_HEADER([config.h])
   9
  10 # Checks for programs.
  11 AC_PROG_CXX
  12 AC_PROG_CC
  13 AC_PROG_INSTALL
  14 AC_PROG_LN_S
  15 AC_PROG_LIBTOOL
  16
  17 # Checks for libraries.
  18 AC_CHECK_LIB([dl], [dlopen])
  19 AC_CHECK_LIB([crypto], [EVP_EncryptInit],
  20                 [add_cryptcab_support=yes],
  21                 [add_cryptcab_support=no ; warn_cryptcab=yes])
  22
  23 # Checks for header files.
  24 AC_HEADER_STDC
  25 AC_HEADER_SYS_WAIT
  26 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])
  27
  28 AC_CHECK_HEADERS([syslimits.h sys/syslimits.h])
  29
  30 AC_CHECK_HEADERS([openssl/blowfish.h],
  31                  [],
  32                  [add_cryptcab_support=no ; warn_cryptcab=yes])
  33
  34 # Checks for typedefs, structures, and compiler characteristics.
  35 AC_C_CONST
  36 AC_C_INLINE
  37 AC_C_BIGENDIAN
  38 AC_C_PROTOTYPES
  39 AC_TYPE_MODE_T
  40 AC_TYPE_PID_T
  41 AC_TYPE_SIZE_T
  42 AC_HEADER_TIME
  43
  44 # Checks for library functions.
  45 AC_FUNC_CHOWN
  46 AC_FUNC_FORK
  47 AC_PROG_GCC_TRADITIONAL
  48 AC_FUNC_MALLOC
  49 AC_FUNC_MEMCMP
  50 AC_FUNC_REALLOC
  51 AC_FUNC_SELECT_ARGTYPES
  52 AC_TYPE_SIGNAL
  53 AC_FUNC_VPRINTF
  54 AC_CHECK_FUNCS([atexit dup2 gethostbyname gethostname gettimeofday inet_ntoa memmove memset putenv select setenv socket strchr strdup strndup strerror strstr uname inet_aton sprintf readv random srandom index bcmp drand48 memmove gethostid revoke fchmod getopt_long_only])
  55
  56 # All other nice checks I have to make for recostructing missing parts of
  57 # slirp's config.h file
  58 AC_CHECK_SIZEOF(char)
  59 AC_CHECK_SIZEOF(short)
  60 AC_CHECK_SIZEOF(int)
  61 AC_CHECK_SIZEOF(char *)
  62
  63 # Define VDE_LINUX or VDE_DARWIN
  64 case "$build_os" in
  65         linux*)
  66                 AC_DEFINE([VDE_LINUX], 1, [If defined, this is a Linux system])
  67                 ;;
  68         darwin*)
  69                 AC_DEFINE([VDE_DARWIN], 1, [If defined, this is a Darwin system])
  70                 ;;
  71         *)
  72                 AC_MSG_ERROR([Unsupported architecture: $build_os. At the moment, only
  73 Linux and Darwin are supported. Contributions are appreciated! :-)])
  74                 ;;
  75 esac
  76
  77
  78 # Disable vde_cryptcab? (depends on ssl, maybe unwanted)
  79 AC_ARG_ENABLE([cryptcab],
  80         AS_HELP_STRING([--disable-cryptcab],
  81                 [Disable libcrypto-dependend vde_cryptcab compilation]),
  82         [if test $enableval = "no" ; then add_cryptcab_support=no ; warn_cryptcab=no ; fi])
  83
  84 # Check of tuntap device
  85 AC_ARG_ENABLE([tuntap],
  86     AS_HELP_STRING([--disable-tuntap],
  87       [Disable tuntap compilation]),
  88     [if test $enableval != "no" ; then add_tuntap_support=yes ; else add_tuntap_support=no ; fi],
  89     [add_tuntap_support=yes])
  90
  91 # Check for tuntap support for Linux and OSX
  92 if test "$add_tuntap_support" = yes ; then
  93         case "$build_os" in
  94                 linux*)
  95                         AC_CHECK_HEADER([linux/if_tun.h],
  96                                 [AC_DEFINE([TUNTAP], 1, [If defined, tuntap support is compiled in])],
  97                                 [AC_MSG_ERROR([Tuntap support seem to be not enabled on your kernel])])
  98                         can_make_libvdetap=yes
  99                         ;;
 100                 darwin*)
 101                         # I don't use AC_CHECK_FILES because I need test -e and not test -r
 102                         for i in /dev/tap0 /Library/Extensions/tap.kext /System/Library/Extensions/tap.kext ; do
 103                                 AC_MSG_CHECKING([for $i])
 104                                 if test -e "$i" ; then
 105                                         AC_MSG_RESULT([yes])
 106                                         definename="`echo "$i" | tr "a-z*" "A-ZP" | tr -c "0-9A-Z" "_"`"
 107                                         AC_DEFINE_UNQUOTED([HAVE_$definename])
 108                                         eval HAVE_$definename=yes
 109                                 else
 110                                         AC_MSG_RESULT([no])
 111                                 fi
 112                         done
 113
 114                         if test "$HAVE__DEV_TAP0_" ; then
 115                                 AC_DEFINE([TUNTAP], 1, [If defined, tuntap support is compiled in])
 116                                 if ! test "$HAVE__LIBRARY_EXTENSIONS_TAP_KEXT_" -o "$HAVE__SYSTEM_LIBRARY_EXTENSIONS_TAP_KEXT_" ; then
 117                                         AC_MSG_WARN([/dev/tap0 exists, but the kext cannot be found. Let's hope your
 118 configuration does work...])
 119                                 fi
 120                                 AC_MSG_CHECKING([for broken poll() support in Tiger])
 121                                 if expr "$build_os" : "darwin8\..*" > /dev/null; then
 122                                         AC_MSG_RESULT([yes, emulating with select()])
 123                                         AC_DEFINE([HAVE_BROKEN_POLL], 1, [If defined, use poll2select])
 124                                         have_broken_poll=yes
 125                                 else
 126                                         AC_MSG_RESULT([no])
 127                                 fi
 128                         else
 129                                 AC_MSG_ERROR([You do not have tuntap support. You can get it here:
 130 http://www-user.rhrk.uni-kl.de/~nissler/tuntap/])
 131                         fi
 132                         ;;
 133         esac
 134 fi
 135
 136 AM_CONDITIONAL(ENABLE_CRYPTCAB, test "$add_cryptcab_support" = yes)
 137 AM_CONDITIONAL(WANT_TUNTAP, test "$add_tuntap_support" = yes)
 138 AM_CONDITIONAL(CAN_MAKE_LIBVDETAP, test "$can_make_libvdetap" = yes)
 139 AM_CONDITIONAL(HAVE_BROKEN_POLL, test "$have_broken_poll" = yes)
 140
 141 AC_CONFIG_FILES([Makefile]
 142                 [doc/Makefile]
 143                 [qemu/Makefile]
 144                 [slirpvde/Makefile]
 145                 [vdetaplib/Makefile]
 146                 [libvdeplug/Makefile]
 147                 [vde_plug/Makefile]
 148                 [vde_plug2tap/Makefile]
 149                 [vde_cryptcab/Makefile]
 150                 [bochs/Makefile]
 151                 [dpipe/Makefile]
 152                 [unixterm/Makefile]
 153                 [wirefilter/Makefile]
 154                 [uml/Makefile])
 155 AC_OUTPUT
 156
 157 if test x$warn_cryptcab = "xyes"
 158 then
 159         AC_MSG_WARN([VDE CryptCab support has been disabled because libcrypto is
 160 not installed on your system, or because openssl/blowfish.h could not be
 161 found. Please install them if you want CryptCab to be compiled and installed.])
 162 fi