configure.ac

   1 dnl ** This is a configure script template for BIRD
   2 dnl ** Process it with autoconf to get ./configure
   3 dnl ** (c) 1999--2000 Martin Mares <mj@ucw.cz>
   4
   5 AC_INIT
   6 AC_CONFIG_SRCDIR([conf/confbase.Y])
   7 AC_CONFIG_AUX_DIR([tools])
   8
   9 AC_ARG_ENABLE([client],
  10   [AS_HELP_STRING([--enable-client], [enable building of BIRD client @<:@yes@:>@])],
  11   [],
  12   [enable_client=yes]
  13 )
  14
  15 AC_ARG_ENABLE([debug],
  16   [AS_HELP_STRING([--enable-debug], [enable internal debugging routines @<:@no@:>@])],
  17   [],
  18   [enable_debug=no]
  19 )
  20
  21 AC_ARG_ENABLE([debug-generated],
  22   [AS_HELP_STRING([--enable-debug-generated], [enable this to abstain from generating #line @<:@no@:>@])],
  23   [],
  24   [enable_debug_generated=no]
  25 )
  26
  27 AC_ARG_ENABLE([debug-expensive],
  28   [AS_HELP_STRING([--enable-debug-expensive], [enable expensive consistency checks (implies --enable-debug) @<:@no@:>@])],
  29   [],
  30   [enable_debug_expensive=no]
  31 )
  32
  33 AC_ARG_ENABLE([memcheck],
  34   [AS_HELP_STRING([--enable-memcheck], [check memory allocations when debugging @<:@yes@:>@])],
  35   [],
  36   [enable_memcheck=yes]
  37 )
  38
  39 AC_ARG_ENABLE([pthreads],
  40   [AS_HELP_STRING([--enable-pthreads], [enable POSIX threads support @<:@try@:>@])],
  41   [],
  42   [enable_pthreads=try]
  43 )
  44
  45 AC_ARG_ENABLE([libssh],
  46   [AS_HELP_STRING([--enable-libssh], [enable LibSSH support in RPKI @<:@try@:>@])],
  47   [],
  48   [enable_libssh=try]
  49 )
  50
  51 AC_ARG_ENABLE([mpls-kernel],
  52   [AS_HELP_STRING([--enable-mpls-kernel], [enable MPLS support in kernel protocol @<:@try@:>@])],
  53   [],
  54   [enable_mpls_kernel=try]
  55 )
  56
  57 AC_ARG_WITH([protocols],
  58   [AS_HELP_STRING([--with-protocols=LIST], [include specified routing protocols @<:@all@:>@])],
  59   [],
  60   [with_protocols="all"]
  61 )
  62
  63 AC_ARG_WITH([sysconfig],
  64   [AS_HELP_STRING([--with-sysconfig=FILE], [use specified BIRD system configuration file])]
  65 )
  66
  67 AC_ARG_WITH([runtimedir],
  68   [AS_HELP_STRING([--with-runtimedir=PATH], [run-state data, obsolete variant of --runstatedir])],
  69   [runstatedir="$with_runtimedir"]
  70 )
  71
  72 AC_ARG_WITH([iproutedir],
  73   [AS_HELP_STRING([--with-iproutedir=PATH], [path to iproute2 config files @<:@/etc/iproute2@:>@])],
  74   [given_iproutedir="yes"]
  75 )
  76
  77 AC_ARG_VAR([FLEX], [location of the Flex program])
  78 AC_ARG_VAR([BISON], [location of the Bison program])
  79 AC_ARG_VAR([M4], [location of the M4 program])
  80
  81 if test "$enable_debug_expensive" = yes; then
  82   enable_debug = yes
  83 fi
  84
  85 if test "$srcdir" = . ; then
  86   # Building in current directory => create obj directory holding all objects
  87   objdir=obj
  88 else
  89   # Building in separate directory
  90   objdir=.
  91 fi
  92
  93 exedir=.
  94
  95 AC_SUBST([objdir])
  96 AC_SUBST([exedir])
  97 AC_SUBST([srcdir])
  98
  99 # Workaround for older Autoconfs that do not define runstatedir
 100 AS_IF([test -z "${runstatedir}"], [runstatedir='${localstatedir}/run'])
 101 AC_SUBST([runstatedir])
 102
 103 CONFIG_FILE="\$(sysconfdir)/bird.conf"
 104 AC_SUBST([CONFIG_FILE])
 105
 106 CONTROL_SOCKET="\$(runstatedir)/bird.ctl"
 107 AC_SUBST([CONTROL_SOCKET])
 108
 109 AC_SEARCH_LIBS([clock_gettime], [rt posix4],
 110   [],
 111   [AC_MSG_ERROR([Function clock_gettime not available.])]
 112 )
 113
 114 AC_CANONICAL_HOST
 115
 116 # Store this value because ac_test_CFLAGS is overwritten by AC_PROG_CC
 117 if test "$ac_test_CFLAGS" != set ; then
 118   bird_cflags_default=yes
 119 fi
 120
 121 AC_PROG_CC
 122 AC_PROG_CC_C99
 123 if test -z "$GCC" ; then
 124   AC_MSG_ERROR([This program requires the GNU C Compiler.])
 125 fi
 126
 127 BIRD_CHECK_THREAD_LOCAL
 128 if test "$bird_cv_thread_local" = yes ; then
 129   AC_DEFINE([HAVE_THREAD_LOCAL], [1], [Define to 1 if _Thread_local is available])
 130 fi
 131
 132 if test "$enable_pthreads" != no ; then
 133   BIRD_CHECK_PTHREADS
 134
 135   if test "$bird_cv_lib_pthreads" = yes ; then
 136     AC_DEFINE([USE_PTHREADS], [1], [Define to 1 if pthreads are enabled])
 137     CFLAGS="$CFLAGS -pthread"
 138     LDFLAGS="$LDFLAGS -pthread"
 139     proto_bfd=bfd
 140   elif test "$enable_pthreads" = yes ; then
 141     AC_MSG_ERROR([POSIX threads not available.])
 142   fi
 143
 144   if test "$enable_pthreads" = try ; then
 145     enable_pthreads="$bird_cv_lib_pthreads"
 146   fi
 147 fi
 148
 149 # This is assumed to be necessary for proper BIRD build
 150 CFLAGS="$CFLAGS -fno-strict-aliasing -fno-strict-overflow"
 151
 152 if test "$bird_cflags_default" = yes ; then
 153   BIRD_CHECK_GCC_OPTION([bird_cv_c_option_wno_pointer_sign], [-Wno-pointer-sign], [-Wall])
 154   BIRD_CHECK_GCC_OPTION([bird_cv_c_option_wno_missing_init], [-Wno-missing-field-initializers], [-Wall -Wextra])
 155
 156   if test "$enable_debug" = no; then
 157     BIRD_CHECK_LTO
 158   fi
 159
 160   if test "$bird_cv_c_lto" = yes; then
 161     CFLAGS="$CFLAGS -flto"
 162     LDFLAGS="$LDFLAGS -flto=4 -g"
 163   else
 164     LDFLAGS="$LDFLAGS -g"
 165   fi
 166
 167   CFLAGS="$CFLAGS -Wall -Wextra -Wstrict-prototypes -Wno-parentheses"
 168   BIRD_ADD_GCC_OPTION([bird_cv_c_option_wno_pointer_sign], [-Wno-pointer-sign])
 169   BIRD_ADD_GCC_OPTION([bird_cv_c_option_wno_missing_init], [-Wno-missing-field-initializers])
 170 fi
 171
 172
 173 AC_MSG_CHECKING([CFLAGS])
 174 AC_MSG_RESULT([$CFLAGS])
 175
 176 AC_MSG_CHECKING([LDFLAGS])
 177 AC_MSG_RESULT([$LDFLAGS])
 178
 179 AC_PROG_CPP
 180 AC_PROG_INSTALL
 181 AC_PROG_RANLIB
 182 AC_CHECK_PROG([FLEX], [flex], [flex])
 183 AC_CHECK_PROG([BISON], [bison], [bison])
 184 AC_CHECK_PROGS([M4], [gm4 m4])
 185
 186 test -z "$FLEX"  && AC_MSG_ERROR([Flex is missing.])
 187 test -z "$BISON" && AC_MSG_ERROR([Bison is missing.])
 188 test -z "$M4"    && AC_MSG_ERROR([M4 is missing.])
 189
 190 AC_MSG_CHECKING([bison version])
 191 BIRD_CHECK_BISON_VERSION(BISON_VERSION)
 192 AC_MSG_RESULT([$BISON_VERSION])
 193 if test "$bird_bison_synclines" = yes && test "$enable_debug_generated" = no; then
 194   M4FLAGS="$M4FLAGS -s"
 195 fi
 196
 197 if test "$bird_bison_enhanced_error" = yes; then
 198   BISONFLAGS="$BISONFLAGS -Dparse.lac=full -Dparse.error=verbose"
 199 fi
 200
 201 AC_SUBST([M4FLAGS])
 202 AC_SUBST([BISONFLAGS])
 203
 204 BIRD_CHECK_PROG_FLAVOR_GNU([$M4],
 205   [],
 206   [AC_MSG_ERROR([Provided M4 is not GNU M4.])]
 207 )
 208
 209 if test -n "$with_sysconfig" -a "$with_sysconfig" != no ; then
 210   if test -f $with_sysconfig ; then
 211     sysdesc=$with_sysconfig
 212   else
 213     sysdesc=$srcdir/sysdep/cf/$with_sysconfig
 214     if ! test -f $sysdesc ; then
 215       sysdesc=$sysdesc.h
 216     fi
 217   fi
 218 elif test -f sysconfig.h ; then
 219   sysdesc=sysconfig
 220 else
 221   case "$host_os" in
 222     linux*)
 223       sysdesc=linux
 224       default_iproutedir="/etc/iproute2"
 225       ;;
 226     freebsd*)
 227       sysdesc=bsd
 228       CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 229       LDFLAGS="$LDFLAGS -L/usr/local/lib"
 230       ;;
 231     kfreebsd*)
 232       sysdesc=bsd
 233       ;;
 234     netbsd*)
 235       sysdesc=bsd
 236       CPPFLAGS="$CPPFLAGS -I/usr/pkg/include"
 237       LDFLAGS="$LDFLAGS -L/usr/pkg/lib -R/usr/pkg/lib"
 238       ;;
 239     openbsd*)
 240       sysdesc=bsd
 241       ;;
 242     dragonfly*)
 243       sysdesc=bsd
 244       ;;
 245     *)
 246       AC_MSG_ERROR([Cannot determine correct system configuration. Please use --with-sysconfig to set it manually.])
 247       ;;
 248     esac
 249     sysdesc=$srcdir/sysdep/cf/$sysdesc.h
 250 fi
 251 AC_MSG_CHECKING([which OS configuration should we use])
 252 AC_MSG_RESULT([$sysdesc])
 253 if ! test -f $sysdesc ; then
 254   AC_MSG_ERROR([The system configuration file is missing.])
 255 fi
 256 sysname=`echo $sysdesc | sed 's/\.h$//'`
 257 AC_DEFINE_UNQUOTED([SYSCONF_INCLUDE], ["$sysdesc"], [Which sysdep header to include])
 258
 259 AC_MSG_CHECKING([system-dependent directories])
 260 sysdep_dirs="`sed <$sysdesc '/^Link: /!d;s/^Link: \(.*\)$/\1/' | tr '\012' ' '`"
 261 AC_MSG_RESULT([$sysdep_dirs])
 262 AC_SUBST([sysdep_dirs])
 263
 264 if test "$with_iproutedir" = no ; then with_iproutedir= ; fi
 265
 266 if test -n "$given_iproutedir"
 267 then iproutedir=$with_iproutedir
 268 else iproutedir=$default_iproutedir
 269 fi
 270
 271 AC_SUBST([iproutedir])
 272
 273 DAEMON_LIBS=
 274 AC_SUBST(DAEMON_LIBS)
 275
 276 if test "$enable_libssh" != no ; then
 277   AC_CHECK_HEADER([libssh/libssh.h], [true], [fail=yes], [ ])
 278   AC_CHECK_LIB([ssh], [ssh_connect], [true], [fail=yes])
 279
 280   if test "$fail" != yes ; then
 281     AC_DEFINE([HAVE_LIBSSH], [1], [Define to 1 if you have the `ssh' library (-lssh).])
 282     DAEMON_LIBS="-lssh $DAEMON_LIBS"
 283     enable_libssh=yes
 284   else
 285     if test "$enable_libssh" = yes ; then
 286       AC_MSG_ERROR([LibSSH not available.])
 287     else
 288       enable_libssh=no
 289     fi
 290   fi
 291 fi
 292
 293 if test "$enable_mpls_kernel" != no ; then
 294   BIRD_CHECK_MPLS_KERNEL
 295
 296   if test "$bird_cv_mpls_kernel" = yes ; then
 297     AC_DEFINE([HAVE_MPLS_KERNEL], [1], [Define to 1 if kernel is MPLS capable])
 298   elif test "$enable_mpls_kernel" = yes ; then
 299     AC_MSG_ERROR([Kernel MPLS support not found.])
 300   fi
 301
 302   if test "$enable_mpls_kernel" = try ; then
 303     enable_mpls_kernel="$bird_cv_mpls_kernel"
 304   fi
 305 fi
 306
 307 all_protocols="$proto_bfd babel bgp mrt ospf perf pipe radv rip rpki static"
 308
 309 all_protocols=`echo $all_protocols | sed 's/ /,/g'`
 310
 311 if test "$with_protocols" = all ; then
 312   with_protocols="$all_protocols"
 313 fi
 314
 315 AH_TEMPLATE([CONFIG_BABEL],     [Babel protocol])
 316 AH_TEMPLATE([CONFIG_BFD],       [BFD protocol])
 317 AH_TEMPLATE([CONFIG_BGP],       [BGP protocol])
 318 AH_TEMPLATE([CONFIG_MRT],       [MRT protocol])
 319 AH_TEMPLATE([CONFIG_OSPF],      [OSPF protocol])
 320 AH_TEMPLATE([CONFIG_PIPE],      [Pipe protocol])
 321 AH_TEMPLATE([CONFIG_RADV],      [RAdv protocol])
 322 AH_TEMPLATE([CONFIG_RIP],       [RIP protocol])
 323 AH_TEMPLATE([CONFIG_RPKI],      [RPKI protocol])
 324 AH_TEMPLATE([CONFIG_STATIC],    [Static protocol])
 325
 326 AC_MSG_CHECKING([protocols])
 327 protocols=`echo "$with_protocols" | sed 's/,/ /g'`
 328 if test "$protocols" = no ; then protocols= ; fi
 329 for a in $protocols ; do
 330   if ! test -f $srcdir/proto/$a/Makefile ; then
 331     AC_MSG_RESULT([failed])
 332     AC_MSG_ERROR([Requested protocol $a not found])
 333   fi
 334   AC_DEFINE_UNQUOTED([CONFIG_`echo $a | tr 'a-z' 'A-Z'`])
 335 done
 336 AC_MSG_RESULT([ok])
 337 AC_SUBST([protocols])
 338
 339 case $sysdesc in
 340   */linux*)
 341     AC_CHECK_HEADER([linux/rtnetlink.h],
 342       [],
 343       [AC_MSG_ERROR([Appropriate version of Linux kernel headers not found.])],
 344       [
 345         dnl Some older versions of Linux kernel headers require these includes
 346         #include <asm/types.h>
 347         #include <sys/socket.h>
 348       ]
 349     )
 350     ;;
 351 esac
 352
 353 AC_CHECK_HEADERS_ONCE([alloca.h syslog.h])
 354 AC_CHECK_MEMBERS([struct sockaddr.sa_len], [], [], [#include <sys/socket.h>])
 355
 356 AC_C_BIGENDIAN(
 357   [AC_DEFINE([CPU_BIG_ENDIAN], [1], [Define to 1 if cpu is big endian])],
 358   [AC_DEFINE([CPU_LITTLE_ENDIAN], [1], [Define to 1 if cpu is little endian])],
 359   [AC_MSG_ERROR([Cannot determine CPU endianity.])]
 360 )
 361
 362 BIRD_CHECK_ANDROID_GLOB
 363 if test "$bird_cv_lib_glob" = no ; then
 364   AC_MSG_ERROR([glob.h not found.])
 365 elif test "$bird_cv_lib_glob" != yes ; then
 366   LIBS="$LIBS $bird_cv_lib_glob"
 367 fi
 368
 369 BIRD_CHECK_ANDROID_LOG
 370 if test "$bird_cv_lib_log" = no ; then
 371   AC_MSG_ERROR([don't know how to link syslog.])
 372 elif test "$bird_cv_lib_log" != yes ; then
 373   LIBS="$LIBS $bird_cv_lib_log"
 374 fi
 375
 376 if test "$enable_debug" = yes ; then
 377   AC_DEFINE([DEBUGGING], [1], [Define to 1 if debugging is enabled])
 378   LDFLAGS="$LDFLAGS -rdynamic"
 379   CFLAGS="$CFLAGS -O0 -ggdb -g3"
 380
 381   BIRD_CHECK_GCC_OPTION([bird_cv_c_option_dwarf4], [-gdwarf-4], [])
 382   BIRD_ADD_GCC_OPTION([bird_cv_c_option_dwarf4], [-gdwarf-4])
 383
 384   AC_CHECK_HEADER([execinfo.h],
 385     [
 386       AC_DEFINE([HAVE_EXECINFO_H], [1], [Define to 1 if you have the <execinfo.h> header file.])
 387       AC_SEARCH_LIBS([backtrace], [execinfo],
 388         [],
 389         [AC_MSG_ERROR([Function backtrace not available.])]
 390       )
 391     ]
 392   )
 393
 394   if test "$enable_memcheck" = yes ; then
 395     AC_CHECK_LIB([dmalloc], [dmalloc_debug])
 396     if test $ac_cv_lib_dmalloc_dmalloc_debug != yes ; then
 397       AC_CHECK_LIB([efence], [malloc])
 398     fi
 399   fi
 400
 401   if test "enable_debug_expensive" = yes ; then
 402     AC_DEFINE([ENABLE_EXPENSIVE_CHECKS], [1], [Define to 1 if you want to run expensive consistency checks.])
 403   fi
 404 fi
 405
 406 CLIENT=birdcl
 407 CLIENT_LIBS=
 408 if test "$enable_client" = yes ; then
 409   CLIENT="$CLIENT birdc"
 410   BASE_LIBS="$LIBS"
 411   LIBS=""
 412
 413   AC_CHECK_HEADERS([curses.h],
 414     [],
 415     [AC_MSG_ERROR([The client requires ncurses library. Either install the library or use --disable-client to compile without the client.])],
 416     [AC_INCLUDES_DEFAULT]
 417   )
 418
 419   AC_SEARCH_LIBS([tgetent], [tinfo tinfow ncurses curses termcap],
 420     [TINFO_LIBS="$LIBS"; LIBS=""],
 421     [AC_MSG_ERROR([The client requires ncurses library. Either install the library or use --disable-client to compile without the client.])],
 422   )
 423
 424   AC_CHECK_HEADERS([readline/readline.h readline/history.h],
 425     [],
 426     [AC_MSG_ERROR([The client requires GNU Readline library. Either install the library or use --disable-client to compile without the client.])],
 427     [AC_INCLUDES_DEFAULT]
 428   )
 429
 430   AC_SEARCH_LIBS([rl_callback_read_char], [readline],
 431     [READLINE_LIBS="$LIBS"; LIBS=""],
 432     [AC_MSG_ERROR([The client requires GNU Readline library. Either install the library or use --disable-client to compile without the client.])],
 433     [$TINFO_LIBS]
 434   )
 435
 436   AC_CHECK_LIB([readline], [rl_crlf],
 437     [AC_DEFINE([HAVE_RL_CRLF], [1], [Define to 1 if you have rl_crlf()])],
 438     [],
 439     [$TINFO_LIBS]
 440   )
 441
 442   AC_CHECK_LIB([readline], [rl_ding],
 443     [AC_DEFINE([HAVE_RL_DING], [1], [Define to 1 if you have rl_ding()])],
 444     [],
 445     [$TINFO_LIBS]
 446   )
 447
 448   LIBS="$BASE_LIBS"
 449   CLIENT_LIBS="$READLINE_LIBS $TINFO_LIBS"
 450 fi
 451 AC_SUBST([CLIENT])
 452 AC_SUBST([CLIENT_LIBS])
 453
 454 mkdir -p $objdir/sysdep
 455 AC_CONFIG_HEADERS([$objdir/sysdep/autoconf.h:sysdep/autoconf.h.in])
 456 AC_CONFIG_FILES([Makefile:Makefile.in])
 457 AC_OUTPUT
 458
 459 AC_MSG_RESULT()
 460 AC_MSG_RESULT([BIRD was configured with the following options:])
 461 AC_MSG_RESULT([        Source directory:        $srcdir])
 462 AC_MSG_RESULT([        Object directory:        $objdir])
 463 AC_MSG_RESULT([        Iproute2 directory:      $iproutedir])
 464 AC_MSG_RESULT([        System configuration:    $sysdesc])
 465 AC_MSG_RESULT([        Debugging:               $enable_debug])
 466 AC_MSG_RESULT([        POSIX threads:           $enable_pthreads])
 467 AC_MSG_RESULT([        Routing protocols:       $protocols])
 468 AC_MSG_RESULT([        LibSSH support in RPKI:  $enable_libssh])
 469 AC_MSG_RESULT([        Kernel MPLS support:     $enable_mpls_kernel])
 470 AC_MSG_RESULT([        Client:                  $enable_client])
 471
 472 rm -f $objdir/.*-stamp