configure.ac

   1 ##
   2 ## Configure template file for FRRouting.
   3 ## autoconf will generate configure script.
   4 ##
   5 ##  Copyright (c) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
   6 ##  Portions Copyright (c) 2003 Paul Jakma <paul@dishone.st>
   7 ##
   8 AC_PREREQ(2.60)
   9
  10 AC_INIT(frr, 3.1-dev, [https://github.com/frrouting/frr/issues])
  11 PACKAGE_URL="https://frrouting.org/"
  12 AC_SUBST(PACKAGE_URL)
  13 PACKAGE_FULLNAME="FRRouting"
  14 AC_SUBST(PACKAGE_FULLNAME)
  15
  16 CONFIG_ARGS="$ac_configure_args"
  17 AC_SUBST(CONFIG_ARGS)
  18
  19 AC_CONFIG_SRCDIR(lib/zebra.h)
  20 AC_CONFIG_MACRO_DIR([m4])
  21
  22 dnl -----------------------------------
  23 dnl Get hostname and other information.
  24 dnl -----------------------------------
  25 AC_CANONICAL_BUILD()
  26 AC_CANONICAL_HOST()
  27
  28 AS_IF([test "$host" != "$build"], [
  29   if test "$srcdir" = "."; then
  30     AC_MSG_ERROR([cross-compilation is only possible with builddir separate from srcdir.  create a separate directory and run as .../path-to-frr/configure.])
  31   fi
  32   test -d hosttools || mkdir hosttools
  33   abssrc="`cd \"${srcdir}\"; pwd`"
  34
  35   AC_MSG_NOTICE([...])
  36   AC_MSG_NOTICE([... cross-compilation: creating hosttools directory and self-configuring for build platform tools])
  37   AC_MSG_NOTICE([... use HOST_CPPFLAGS / HOST_CFLAGS / HOST_LDFLAGS if neccessary])
  38   AC_MSG_NOTICE([...])
  39
  40   ( CPPFLAGS="$HOST_CPPFLAGS"; \
  41     CFLAGS="$HOST_CFLAGS"; \
  42     LDFLAGS="$HOST_LDFLAGS"; \
  43     cd hosttools; "${abssrc}/configure" "--host=$build" "--build=$build"; )
  44
  45   AC_MSG_NOTICE([...])
  46   AC_MSG_NOTICE([... cross-compilation: finished self-configuring for build platform tools])
  47   AC_MSG_NOTICE([...])
  48
  49   build_clippy="false"
  50   HOSTTOOLS="hosttools/"
  51 ], [
  52   build_clippy="true"
  53   HOSTTOOLS=""
  54 ])
  55 AC_SUBST(HOSTTOOLS)
  56 AM_CONDITIONAL([BUILD_CLIPPY], [$build_clippy])
  57
  58 # Disable portability warnings -- our automake code (in particular
  59 # common.am) uses some constructs specific to gmake.
  60 AM_INIT_AUTOMAKE([1.12 -Wno-portability])
  61 m4_ifndef([AM_SILENT_RULES], [m4_define([AM_SILENT_RULES],[])])
  62 AM_SILENT_RULES([yes])
  63 AC_CONFIG_HEADERS(config.h)
  64
  65 AC_PATH_PROG(PERL, perl)
  66 PKG_PROG_PKG_CONFIG
  67
  68 dnl default is to match previous behavior
  69 exampledir=${sysconfdir}
  70 AC_ARG_ENABLE([exampledir],
  71           AS_HELP_STRING([--enable-exampledir],
  72                          [specify alternate directory for examples]),
  73                          exampledir="$enableval",)
  74 dnl XXX add --exampledir to autoconf standard directory list somehow
  75 AC_SUBST(exampledir)
  76
  77 dnl default is to match previous behavior
  78 pkgsrcrcdir=""
  79 AC_ARG_ENABLE([pkgsrcrcdir],
  80           AS_HELP_STRING([--enable-pkgsrcrcdir],
  81                          [specify directory for rc.d scripts]),
  82                          pkgsrcrcdir="$enableval",)
  83 dnl XXX add --pkgsrcrcdir to autoconf standard directory list somehow
  84 AC_SUBST(pkgsrcrcdir)
  85 AM_CONDITIONAL([PKGSRC], [test "x$pkgsrcrcdir" != "x"])
  86
  87 AC_ARG_WITH([moduledir], [AS_HELP_STRING([--with-moduledir=DIR], [module directory (${libdir}/frr/modules)])], [
  88         moduledir="$withval"
  89 ], [
  90         moduledir="\${libdir}/frr/modules"
  91 ])
  92 AC_SUBST([moduledir], [$moduledir])
  93
  94 AC_ARG_ENABLE(tcmalloc,
  95         AS_HELP_STRING([--enable-tcmalloc], [Turn on tcmalloc]),
  96 [case "${enableval}" in
  97   yes) tcmalloc_enabled=true
  98 LIBS="$LIBS -ltcmalloc_minimal"
  99  ;;
 100   no)  tcmalloc_enabled=false ;;
 101   *) AC_MSG_ERROR(bad value ${enableval} for --enable-tcmalloc) ;;
 102 esac],[tcmalloc_enabled=false])
 103
 104
 105 dnl Thanks autoconf, but we don't want a default -g -O2.  We have our own
 106 dnl flag determination logic.
 107 CFLAGS="${CFLAGS:-}"
 108
 109 dnl --------------------
 110 dnl Check CC and friends
 111 dnl --------------------
 112 dnl note orig_cflags is also used further down
 113 orig_cflags="$CFLAGS"
 114 AC_LANG([C])
 115 AC_PROG_CC
 116 AC_PROG_CPP
 117 AM_PROG_CC_C_O
 118 dnl remove autoconf default "-g -O2"
 119 CFLAGS="$orig_cflags"
 120 AC_PROG_CC_C99
 121 dnl NB: see C11 below
 122
 123 AC_PROG_EGREP
 124 PKG_PROG_PKG_CONFIG
 125
 126 dnl autoconf 2.59 appears not to support AC_PROG_SED
 127 dnl AC_PROG_SED
 128 AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
 129
 130 dnl try and enable CFLAGS that are useful for FRR
 131 dnl - specifically, options to control warnings
 132
 133 AC_USE_SYSTEM_EXTENSIONS
 134 AC_DEFUN([AC_C_FLAG], [{
 135         AC_LANG_PUSH(C)
 136         ac_c_flag_save="$CFLAGS"
 137         CFLAGS="$CFLAGS $1"
 138         AC_MSG_CHECKING([[whether $CC supports $1]])
 139         AC_COMPILE_IFELSE(
 140                 [AC_LANG_PROGRAM([[]])],
 141                 [
 142                         AC_MSG_RESULT([yes])
 143                         m4_if([$3], [], [], [
 144                                 CFLAGS="$ac_c_flag_save"
 145                                 $3
 146                         ])
 147                 ], [
 148                         CFLAGS="$ac_c_flag_save"
 149                         AC_MSG_RESULT([no])
 150                         $2
 151                 ])
 152         AC_LANG_POP(C)
 153         }])
 154
 155 AC_DEFUN([AC_LINK_IFELSE_FLAGS], [{
 156         AC_LANG_PUSH(C)
 157         ac_cflags_save="$CFLAGS"
 158         ac_libs_save="$LIBS"
 159         CFLAGS="$CFLAGS $1"
 160         LIBS="$LIBS $2"
 161         AC_LINK_IFELSE(
 162                 [$3],
 163                 [
 164                         AC_MSG_RESULT([yes])
 165                         CFLAGS="$ac_cflags_save"
 166                         LIBS="$ac_libs_save"
 167                         $5
 168                 ], [
 169                         AC_MSG_RESULT([no])
 170                         CFLAGS="$ac_cflags_save"
 171                         LIBS="$ac_libs_save"
 172                         $4
 173                 ])
 174         AC_LANG_POP(C)
 175         }])
 176
 177 dnl ICC won't bail on unknown options without -diag-error 10006
 178 dnl need to do this first so we get useful results for the other options
 179 AC_C_FLAG([-diag-error 10006])
 180
 181 dnl AC_PROG_CC_C99 may change CC to include -std=gnu99 or something
 182 ac_cc="$CC"
 183 CC="${CC% -std=gnu99}"
 184 CC="${CC% -std=c99}"
 185
 186 AC_C_FLAG([-std=gnu11], [CC="$ac_cc"], [CC="$CC -std=gnu11"])
 187
 188 dnl if the user has specified any CFLAGS, override our settings
 189 if test "x${enable_dev_build}" = "xyes"; then
 190    AC_DEFINE(DEV_BUILD,,Build for development)
 191    if test "z$orig_cflags" = "z"; then
 192       AC_C_FLAG([-g3])
 193       AC_C_FLAG([-O0])
 194    fi
 195 else
 196    if test "z$orig_cflags" = "z"; then
 197       AC_C_FLAG([-g])
 198       AC_C_FLAG([-Os], [
 199         AC_C_FLAG([-O2])
 200       ])
 201    fi
 202 fi
 203 AM_CONDITIONAL([DEV_BUILD], [test "x$enable_dev_build" = "xyes"])
 204
 205 dnl always want these CFLAGS
 206 AC_C_FLAG([-fno-omit-frame-pointer])
 207 AC_C_FLAG([-funwind-tables])
 208 AC_C_FLAG([-Wall])
 209 AC_C_FLAG([-Wextra])
 210 AC_C_FLAG([-Wmissing-prototypes])
 211 AC_C_FLAG([-Wmissing-declarations])
 212 AC_C_FLAG([-Wpointer-arith])
 213 AC_C_FLAG([-Wbad-function-cast])
 214 AC_C_FLAG([-Wwrite-strings])
 215 if test x"${enable_gcc_ultra_verbose}" = x"yes" ; then
 216   AC_C_FLAG([-Wcast-qual])
 217   AC_C_FLAG([-Wstrict-prototypes])
 218   AC_C_FLAG([-Wmissing-noreturn])
 219   AC_C_FLAG([-Wmissing-format-attribute])
 220   AC_C_FLAG([-Wunreachable-code])
 221   AC_C_FLAG([-Wpacked])
 222   AC_C_FLAG([-Wpadded])
 223 else
 224   AC_C_FLAG([-Wno-unused-result])
 225 fi
 226 AC_C_FLAG([-Wno-unused-parameter])
 227 AC_C_FLAG([-Wno-missing-field-initializers])
 228
 229 dnl ICC emits a broken warning for const char *x = a ? "b" : "c";
 230 dnl for some reason the string consts get 'promoted' to char *,
 231 dnl triggering a const to non-const conversion warning.
 232 AC_C_FLAG([-diag-disable 3179])
 233
 234 if test x"${enable_werror}" = x"yes" ; then
 235   WERROR="-Werror"
 236 fi
 237 AC_SUBST(WERROR)
 238
 239 dnl need link on this one, not compile
 240 AC_LANG_PUSH(C)
 241 ac_ld_flag_save="$LDFLAGS"
 242 LDFLAGS="$LDFLAGS -rdynamic"
 243 AC_MSG_CHECKING([[whether linker supports -rdynamic]])
 244 AC_LINK_IFELSE(
 245         [AC_LANG_PROGRAM([[]])],
 246         [AC_MSG_RESULT([yes])],
 247         [
 248                 LDFLAGS="$ac_ld_flag_save"
 249                 AC_MSG_RESULT([no])
 250         ])
 251 AC_LANG_POP(C)
 252
 253 dnl ----------
 254 dnl Essentials
 255 dnl ----------
 256
 257 AX_PTHREAD([
 258   CC="$PTHREAD_CC"
 259   CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
 260   LIBS="$PTHREAD_LIBS $LIBS"
 261 ], [
 262   AC_MSG_FAILURE([This FRR version needs pthreads])
 263 ])
 264
 265 dnl --------------
 266 dnl Check programs
 267 dnl --------------
 268 AC_PROG_INSTALL
 269 AC_PROG_LN_S
 270 AC_PROG_MAKE_SET
 271 AC_CHECK_TOOL(AR, ar)
 272
 273 dnl -----------------
 274 dnl System extensions
 275 dnl -----------------
 276 AC_GNU_SOURCE
 277
 278 dnl -------
 279 dnl libtool
 280 dnl -------
 281 LT_INIT
 282
 283 dnl ----------------------
 284 dnl Packages configuration
 285 dnl ----------------------
 286 AC_ARG_WITH(pkg-extra-version,
 287         AS_HELP_STRING([--with-pkg-extra-version=VER], [add extra version field, for packagers/distributions]),
 288         [EXTRAVERSION=$withval],)
 289 AC_ARG_WITH(pkg-git-version,
 290         AS_HELP_STRING([--with-pkg-git-version], [add git information to MOTD and build version string]),
 291         [ test "x$withval" != "xno" && with_pkg_git_version="yes" ])
 292 AC_ARG_WITH(vtysh_pager,
 293         AS_HELP_STRING([--with-vtysh-pager=PAGER], [control what pager is compiled in as default]),
 294         VTYSH_PAGER=$withval, VTYSH_PAGER="more")
 295 AC_ARG_ENABLE(vtysh,
 296   AS_HELP_STRING([--disable-vtysh], [do not build integrated vty shell for FRR]))
 297 AC_ARG_ENABLE(doc,
 298   AS_HELP_STRING([--disable-doc], [do not build docs]))
 299 AC_ARG_ENABLE(zebra,
 300   AS_HELP_STRING([--disable-zebra], [do not build zebra daemon]))
 301 AC_ARG_ENABLE(bgpd,
 302   AS_HELP_STRING([--disable-bgpd], [do not build bgpd]))
 303 AC_ARG_ENABLE(ripd,
 304   AS_HELP_STRING([--disable-ripd], [do not build ripd]))
 305 AC_ARG_ENABLE(ripngd,
 306   AS_HELP_STRING([--disable-ripngd], [do not build ripngd]))
 307 AC_ARG_ENABLE(ospfd,
 308   AS_HELP_STRING([--disable-ospfd], [do not build ospfd]))
 309 AC_ARG_ENABLE(ospf6d,
 310   AS_HELP_STRING([--disable-ospf6d], [do not build ospf6d]))
 311 AC_ARG_ENABLE(ldpd,
 312   AS_HELP_STRING([--enable-ldpd], [build ldpd]))
 313 AC_ARG_ENABLE(nhrpd,
 314   AS_HELP_STRING([--disable-nhrpd], [do not build nhrpd]))
 315 AC_ARG_ENABLE(eigrpd,
 316   AS_HELP_STRING([--disable-eigrpd], [do not build eigrpd]))
 317 AC_ARG_ENABLE(babeld,
 318   AS_HELP_STRING([--disable-babeld], [do not build babeld]))
 319 AC_ARG_ENABLE(watchfrr,
 320   AS_HELP_STRING([--disable-watchfrr], [do not build watchfrr]))
 321 AC_ARG_ENABLE(isisd,
 322   AS_HELP_STRING([--disable-isisd], [do not build isisd]))
 323 AC_ARG_ENABLE(pimd,
 324   AS_HELP_STRING([--disable-pimd], [do not build pimd]))
 325 AC_ARG_ENABLE(bgp-announce,
 326   AS_HELP_STRING([--disable-bgp-announce,], [turn off BGP route announcement]))
 327 AC_ARG_ENABLE(bgp-vnc,
 328   AS_HELP_STRING([--disable-bgp-vnc],[turn off BGP VNC support]))
 329 AC_ARG_WITH(rfp-path,
 330   AS_HELP_STRING([--with-rfp-path[=DIR]],[path to replaced stub RFP used with BGP VNC]))
 331 AC_ARG_ENABLE(snmp,
 332   AS_HELP_STRING([--enable-snmp=ARG], [enable SNMP support (smux or agentx)]))
 333 AC_ARG_ENABLE(zeromq,
 334   AS_HELP_STRING([--enable-zeromq], [enable ZeroMQ handler (libfrrzmq)]))
 335 AC_ARG_WITH(libpam,
 336   AS_HELP_STRING([--with-libpam], [use libpam for PAM support in vtysh]))
 337 AC_ARG_ENABLE(ospfapi,
 338   AS_HELP_STRING([--disable-ospfapi], [do not build OSPFAPI to access the OSPF LSA Database]))
 339 AC_ARG_ENABLE(ospfclient,
 340   AS_HELP_STRING([--disable-ospfclient], [do not build OSPFAPI client for OSPFAPI,
 341                           (this is the default if --disable-ospfapi is set)]))
 342 AC_ARG_ENABLE(multipath,
 343   AS_HELP_STRING([--enable-multipath=ARG], [enable multipath function, ARG must be digit]))
 344 AC_ARG_ENABLE(user,
 345   AS_HELP_STRING([--enable-user=USER], [user to run FRR suite as (default frr)]))
 346 AC_ARG_ENABLE(group,
 347   AS_HELP_STRING([--enable-group=GROUP], [group to run FRR suite as (default frr)]))
 348 AC_ARG_ENABLE(vty_group,
 349   AS_HELP_STRING([--enable-vty-group=ARG], [set vty sockets to have specified group as owner]))
 350 AC_ARG_ENABLE(configfile_mask,
 351   AS_HELP_STRING([--enable-configfile-mask=ARG], [set mask for config files]))
 352 AC_ARG_ENABLE(logfile_mask,
 353   AS_HELP_STRING([--enable-logfile-mask=ARG], [set mask for log files]))
 354 AC_ARG_ENABLE(shell_access,
 355   AS_HELP_STRING([--enable-shell-access], [Allow users to access shell/telnet/ssh]))
 356 AC_ARG_ENABLE(rtadv,
 357   AS_HELP_STRING([--disable-rtadv], [disable IPV6 router advertisement feature]))
 358 AC_ARG_ENABLE(irdp,
 359   AS_HELP_STRING([--disable-irdp], [enable IRDP server support in zebra (default if supported)]))
 360 AC_ARG_ENABLE(capabilities,
 361   AS_HELP_STRING([--disable-capabilities], [disable using POSIX capabilities]))
 362 AC_ARG_ENABLE(rusage,
 363   AS_HELP_STRING([--disable-rusage], [disable using getrusage]))
 364 AC_ARG_ENABLE(gcc_ultra_verbose,
 365   AS_HELP_STRING([--enable-gcc-ultra-verbose], [enable ultra verbose GCC warnings]))
 366 AC_ARG_ENABLE(linux24_tcp_md5,
 367   AS_HELP_STRING([--enable-linux24-tcp-md5], [enable support for old, Linux-2.4 RFC2385 patch]))
 368 AC_ARG_ENABLE(backtrace,
 369   AS_HELP_STRING([--disable-backtrace,], [disable crash backtraces (default autodetect)]))
 370 AC_ARG_ENABLE(time-check,
 371   AS_HELP_STRING([--disable-time-check], [disable slow thread warning messages]))
 372 AC_ARG_ENABLE(pcreposix,
 373   AS_HELP_STRING([--enable-pcreposix], [enable using PCRE Posix libs for regex functions]))
 374 AC_ARG_ENABLE(fpm,
 375   AS_HELP_STRING([--enable-fpm], [enable Forwarding Plane Manager support]))
 376 AC_ARG_ENABLE(systemd,
 377   AS_HELP_STRING([--enable-systemd], [enable Systemd support]))
 378 AC_ARG_ENABLE(werror,
 379   AS_HELP_STRING([--enable-werror], [enable -Werror (recommended for developers only)]))
 380 AC_ARG_ENABLE(cumulus,
 381   AS_HELP_STRING([--enable-cumulus], [enable Cumulus Switch Special Extensions]))
 382 AC_ARG_ENABLE(datacenter,
 383   AS_HELP_STRING([--enable-datacenter], [enable Compilation for Data Center Extensions]))
 384 AC_ARG_ENABLE(rr-semantics,
 385   AS_HELP_STRING([--disable-rr-semantics], [disable the v6 Route Replace semantics]))
 386 AC_ARG_ENABLE([protobuf],
 387   AS_HELP_STRING([--enable-protobuf], [Enable experimental protobuf support]))
 388 AC_ARG_ENABLE([oldvpn_commands],
 389   AS_HELP_STRING([--enable-oldvpn-commands], [Keep old vpn commands]))
 390
 391 AC_CHECK_HEADERS(json-c/json.h)
 392 AC_CHECK_LIB(json-c, json_object_get, LIBS="$LIBS -ljson-c", [], [-lm])
 393 if test $ac_cv_lib_json_c_json_object_get = no; then
 394   AC_CHECK_LIB(json, json_object_get, LIBS="$LIBS -ljson")
 395   if test $ac_cv_lib_json_json_object_get = no; then
 396       AC_MSG_ERROR([lib json is needed to compile])
 397   fi
 398 fi
 399
 400 AC_ARG_ENABLE([dev_build],
 401     AS_HELP_STRING([--enable-dev-build], [build for development]))
 402
 403 if test x"${enable_time_check}" != x"no" ; then
 404   if test x"${enable_time_check}" = x"yes" -o x"${enable_time_check}" = x ; then
 405     AC_DEFINE(CONSUMED_TIME_CHECK,5000000,Consumed Time Check)
 406   else
 407     AC_DEFINE_UNQUOTED(CONSUMED_TIME_CHECK,$enable_time_check,Consumed Time Check)
 408   fi
 409 fi
 410
 411 case "${enable_systemd}" in
 412   "no") ;;
 413   "yes")
 414   AC_CHECK_LIB(systemd, sd_notify, LIBS="$LIBS -lsystemd")
 415   if test $ac_cv_lib_systemd_sd_notify = no; then
 416     AC_MSG_ERROR([enable systemd has been specified but systemd development env not found on your system])
 417   else
 418     AC_DEFINE(HAVE_SYSTEMD,,Compile systemd support in)
 419   fi
 420   ;;
 421   "*") ;;
 422 esac
 423
 424 if test "${enable_rr_semantics}" != "no" ; then
 425   AC_DEFINE(HAVE_V6_RR_SEMANTICS,, Compile in v6 Route Replacement Semantics)
 426 fi
 427
 428 if test "${enable_datacenter}" = "yes" ; then
 429   AC_DEFINE(HAVE_DATACENTER,,Compile extensions for a DataCenter)
 430   DFLT_NAME="datacenter"
 431 else
 432   DFLT_NAME="traditional"
 433 fi
 434
 435 if test "${enable_cumulus}" = "yes" ; then
 436   AC_DEFINE(HAVE_CUMULUS,,Compile Special Cumulus Code in)
 437 fi
 438
 439 AC_SUBST(DFLT_NAME)
 440 AC_DEFINE_UNQUOTED(DFLT_NAME,["$DFLT_NAME"], Name of the configuration default set)
 441
 442 if test "${enable_shell_access}" = "yes"; then
 443    AC_DEFINE(HAVE_SHELL_ACCESS,,Allow user to use ssh/telnet/bash)
 444 fi
 445
 446 AM_CONDITIONAL([FPM], [test "x$enable_fpm" = "xyes"])
 447
 448 #
 449 # Python for clippy
 450 #
 451 AS_IF([test "$host" = "$build"], [
 452   PYTHONCONFIG=""
 453
 454   # ordering:
 455   # 1.  try python3, but respect the user's preference on which minor ver
 456   # 2.  try python, which might be py3 or py2 again on the user's preference
 457   # 3.  try python2 (can really only be 2.7 but eh)
 458   # 4.  try 3.5 > 3.4 > 3.3 > 3.2 > 2.7 through pkg-config (no user pref)
 459   #
 460   # (AX_PYTHON_DEVEL has no clue about py3 vs py2)
 461   # (AX_PYTHON does not do what we need)
 462
 463   AC_CHECK_TOOLS([PYTHONCONFIG], [python3-config python-config python2-config])
 464   if test -n "$PYTHONCONFIG"; then
 465     PYTHON_CFLAGS="`\"${PYTHONCONFIG}\" --includes`"
 466     PYTHON_LIBS="`\"${PYTHONCONFIG}\" --libs`"
 467
 468     AC_MSG_CHECKING([whether we found a working Python version])
 469     AC_LINK_IFELSE_FLAGS([$PYTHON_CFLAGS], [$PYTHON_LIBS], [AC_LANG_PROGRAM([
 470 #include <Python.h>
 471 #if PY_VERSION_HEX < 0x02070000
 472 #error python too old
 473 #endif
 474 int main(void);
 475 ],
 476 [
 477 {
 478   Py_Initialize();
 479   return 0;
 480 }
 481 ])], [
 482       PYTHONCONFIG=""
 483       unset PYTHON_LIBS
 484       unset PYTHON_CFLAGS
 485     ])
 486   fi
 487
 488   if test -z "$PYTHONCONFIG"; then
 489     PKG_CHECK_MODULES([PYTHON], python-3.5, [], [
 490       PKG_CHECK_MODULES([PYTHON], python-3.4, [], [
 491         PKG_CHECK_MODULES([PYTHON], python-3.3, [], [
 492           PKG_CHECK_MODULES([PYTHON], python-3.2, [], [
 493             PKG_CHECK_MODULES([PYTHON], python-2.7, [], [
 494               AC_MSG_FAILURE([could not find python-config or pkg-config python, please install Python development files from libpython-dev or similar])
 495               ])])])])])
 496
 497
 498     AC_MSG_CHECKING([whether we found a working Python version])
 499     AC_LINK_IFELSE_FLAGS([$PYTHON_CFLAGS], [$PYTHON_LIBS], [AC_LANG_PROGRAM([
 500 #include <Python.h>
 501 #if PY_VERSION_HEX < 0x02070000
 502 #error python too old
 503 #endif
 504 int main(void);
 505 ],
 506 [
 507 {
 508   Py_Initialize();
 509   return 0;
 510 }
 511 ])], [
 512       AC_MSG_FAILURE([could not find python-config or pkg-config python, please install Python development files from libpython-dev or similar])
 513     ])
 514   fi
 515 ])
 516 AC_SUBST(PYTHON_CFLAGS)
 517 AC_SUBST(PYTHON_LIBS)
 518
 519 #
 520 # Logic for protobuf support.
 521 #
 522 if test "$enable_protobuf" = "yes"; then
 523    have_protobuf=yes
 524
 525    # Check for protoc-c
 526    AC_CHECK_PROG([PROTOC_C], [protoc-c], [protoc-c], [/bin/false])
 527    if test "x$PROTOC_C" = "x/bin/false"; then
 528       have_protobuf=no
 529    else
 530       found_protobuf_c=no
 531       PKG_CHECK_MODULES([PROTOBUF_C], libprotobuf-c >= 0.14,
 532                      [found_protobuf_c=yes],
 533                      [AC_MSG_RESULT([pkg-config did not find libprotobuf-c])])
 534
 535       if test "x$found_protobuf_c" = "xyes"; then
 536          LDFLAGS="$LDFLAGS $PROTOBUF_C_LIBS"
 537          CFLAGS="$CFLAGS $PROTOBUF_C_CFLAGS"
 538       else
 539         AC_CHECK_HEADER([google/protobuf-c/protobuf-c.h], [],
 540                         [have_protobuf=no; AC_MSG_RESULT([Couldn't find google/protobuf-c.h])])
 541       fi
 542    fi
 543 fi
 544
 545 #
 546 # Logic for old vpn commans support.
 547 #
 548 if test "$enable_oldvpn_commands" = "yes"; then
 549    AC_DEFINE(KEEP_OLD_VPN_COMMANDS,, [Define for compiling with old vpn commands])
 550 fi
 551
 552 # Fail if the user explicity enabled protobuf support and we couldn't
 553 # find the compiler or libraries.
 554 if test "x$have_protobuf" = "xno" && test "x$enable_protobuf" = "xyes"; then
 555    AC_MSG_ERROR([Protobuf enabled explicitly but can't find libraries/tools])
 556 fi
 557
 558 if test "x$have_protobuf" = "xyes"; then
 559    AC_DEFINE(HAVE_PROTOBUF,, protobuf)
 560 fi
 561
 562 AM_CONDITIONAL([HAVE_PROTOBUF], [test "x$have_protobuf" = "xyes"])
 563
 564 #
 565 # End of logic for protobuf support.
 566 #
 567
 568 if test "${enable_linux24_tcp_md5}" = "yes"; then
 569   AC_DEFINE(HAVE_TCP_MD5_LINUX24,,Old Linux 2.4 TCP MD5 Signature Patch)
 570 fi
 571
 572 AC_MSG_CHECKING(if zebra should be configurable to send Route Advertisements)
 573 if test "${enable_rtadv}" != "no"; then
 574   AC_MSG_RESULT(yes)
 575   AC_DEFINE(HAVE_RTADV,,Enable IPv6 Routing Advertisement support)
 576 else
 577   AC_MSG_RESULT(no)
 578 fi
 579
 580 if test x"${enable_user}" = x"no"; then
 581   enable_user=""
 582 else
 583   if test x"${enable_user}" = x"yes" || test x"${enable_user}" = x""; then
 584     enable_user="frr"
 585   fi
 586   AC_DEFINE_UNQUOTED(FRR_USER, "${enable_user}", frr User)
 587 fi
 588
 589 if test x"${enable_group}" = x"no"; then
 590   enable_group=""
 591 else
 592   if test x"${enable_group}" = x"yes" || test x"${enable_group}" = x""; then
 593     enable_group="frr"
 594   fi
 595   AC_DEFINE_UNQUOTED(FRR_GROUP, "${enable_group}", frr Group)
 596 fi
 597
 598 if test x"${enable_vty_group}" = x"yes" ; then
 599   AC_MSG_ERROR([--enable-vty-group requires a group as argument, not yes])
 600 elif test x"${enable_vty_group}" != x""; then
 601   if test x"${enable_vty_group}" != x"no"; then
 602     AC_DEFINE_UNQUOTED(VTY_GROUP, "${enable_vty_group}", VTY Sockets Group)
 603   fi
 604 fi
 605 AC_SUBST([enable_user])
 606 AC_SUBST([enable_group])
 607 AC_SUBST([enable_vty_group])
 608
 609 enable_configfile_mask=${enable_configfile_mask:-0600}
 610 AC_DEFINE_UNQUOTED(CONFIGFILE_MASK, ${enable_configfile_mask}, Mask for config files)
 611
 612 enable_logfile_mask=${enable_logfile_mask:-0600}
 613 AC_DEFINE_UNQUOTED(LOGFILE_MASK, ${enable_logfile_mask}, Mask for log files)
 614
 615 MPATH_NUM=1
 616
 617 case "${enable_multipath}" in
 618   0)
 619     MPATH_NUM=64
 620     ;;
 621   [[1-9]|[1-9][0-9]|[1-9][0-9][0-9]])
 622     MPATH_NUM="${enable_multipath}"
 623     ;;
 624   "")
 625     ;;
 626   *)
 627     AC_MSG_FAILURE([Please specify digit to enable multipath ARG])
 628     ;;
 629 esac
 630
 631 AC_DEFINE_UNQUOTED(MULTIPATH_NUM, $MPATH_NUM, Maximum number of paths for a route)
 632
 633 AC_DEFINE_UNQUOTED(VTYSH_PAGER, "$VTYSH_PAGER", [What pager to use])
 634
 635 dnl -----------------------------------
 636 dnl Add extra version string to package
 637 dnl name, string and version fields.
 638 dnl -----------------------------------
 639 if test "x${EXTRAVERSION}" != "x" ; then
 640   VERSION="${VERSION}${EXTRAVERSION}"
 641   PACKAGE_VERSION="${PACKAGE_VERSION}${EXTRAVERSION}"
 642   AC_SUBST(PACKAGE_EXTRAVERSION, ["${EXTRAVERSION}"])
 643   PACKAGE_STRING="${PACKAGE_STRING}${EXTRAVERSION}"
 644 fi
 645
 646 if test "x$with_pkg_git_version" = "xyes"; then
 647         if test -d "${srcdir}/.git"; then
 648                 AC_DEFINE(GIT_VERSION, [1], [include git version info])
 649         else    with_pkg_git_version="no"
 650                 AC_MSG_WARN([--with-pkg-git-version given, but this is not a git checkout])
 651         fi
 652 fi
 653 AM_CONDITIONAL([GIT_VERSION], [test "x$with_pkg_git_version" = "xyes"])
 654
 655 dnl ------------------------------------
 656 dnl Check C keywords and standard  types
 657 dnl ------------------------------------
 658 AC_C_CONST
 659 AC_C_INLINE
 660 AC_C_VOLATILE
 661 AC_HEADER_STDC
 662 dnl AC_TYPE_PID_T
 663 AC_TYPE_UID_T
 664 AC_TYPE_MODE_T
 665 AC_TYPE_SIZE_T
 666 AC_STRUCT_TM
 667
 668 dnl -------------------------
 669 dnl Check other header files.
 670 dnl -------------------------
 671 AC_CHECK_HEADERS([stropts.h sys/ksym.h \
 672         linux/version.h asm/types.h \
 673         sys/cdefs.h])
 674
 675 ac_stdatomic_ok=false
 676 AC_DEFINE(FRR_AUTOCONF_ATOMIC, 1, [did autoconf checks for atomic funcs])
 677 AC_CHECK_HEADER([stdatomic.h],[
 678
 679   AC_MSG_CHECKING([whether _Atomic qualifier works])
 680   AC_LINK_IFELSE([AC_LANG_SOURCE([[
 681 #include <stdatomic.h>
 682 int main(int argc, char **argv) {
 683   _Atomic int i = 0;
 684   return i;
 685 }
 686 ]])], [
 687     AC_DEFINE(HAVE_STDATOMIC_H, 1, [found stdatomic.h])
 688     AC_MSG_RESULT([yes])
 689     ac_stdatomic_ok=true
 690   ], [
 691     AC_MSG_RESULT([no])
 692   ])
 693 ])
 694
 695 AS_IF([$ac_stdatomic_ok], [true], [
 696   AC_MSG_CHECKING([for __atomic_* builtins])
 697   AC_LINK_IFELSE([AC_LANG_SOURCE([[
 698 int main(int argc, char **argv) {
 699   volatile int i = 1;
 700   __atomic_store_n (&i, 0, __ATOMIC_RELEASE);
 701   return __atomic_load_n (&i, __ATOMIC_ACQUIRE);
 702 }
 703 ]])], [
 704     AC_DEFINE(HAVE___ATOMIC, 1, [found __atomic builtins])
 705     AC_MSG_RESULT([yes])
 706   ], [
 707     AC_MSG_RESULT([no])
 708
 709     dnl FreeBSD 9 has a broken stdatomic.h where _Atomic doesn't work
 710     AC_MSG_CHECKING([for __sync_* builtins])
 711     AC_LINK_IFELSE([AC_LANG_SOURCE([[
 712 int main(int argc, char **argv) {
 713   volatile int i = 1;
 714   __sync_fetch_and_sub (&i, 1);
 715   return __sync_val_compare_and_swap (&i, 0, 1);
 716 }
 717 ]])], [
 718       AC_DEFINE(HAVE___SYNC, 1, [found __sync builtins])
 719       AC_MSG_RESULT([yes])
 720
 721       AC_MSG_CHECKING([for __sync_swap builtin])
 722       AC_LINK_IFELSE([AC_LANG_SOURCE([[
 723 int main(int argc, char **argv) {
 724   volatile int i = 1;
 725   return __sync_swap (&i, 2);
 726 }
 727 ]])], [
 728         AC_DEFINE(HAVE___SYNC_SWAP, 1, [found __sync_swap builtin])
 729         AC_MSG_RESULT([yes])
 730       ], [
 731         AC_MSG_RESULT([no])
 732       ])
 733
 734     ], [
 735       AC_MSG_RESULT([no])
 736       AC_MSG_FAILURE([stdatomic.h unavailable and $CC has neither __atomic nor __sync builtins])
 737     ])
 738   ])
 739 ])
 740
 741 dnl Utility macro to avoid retyping includes all the time
 742 m4_define([FRR_INCLUDES],
 743 [#ifdef SUNOS_5
 744 #define _XPG4_2
 745 #define __EXTENSIONS__
 746 #endif
 747 #include <stdio.h>
 748 #include <stdlib.h>
 749 #include <stddef.h>
 750 #include <sys/types.h>
 751 /* sys/conf.h depends on param.h on FBSD at least */
 752 #include <sys/param.h>
 753 /* Required for MAXSIG */
 754 #include <signal.h>
 755 #include <sys/socket.h>
 756 #ifdef __APPLE__
 757 # define __APPLE_USE_RFC_3542
 758 #endif
 759 #include <netinet/in.h>
 760 #include <sys/time.h>
 761 #include <time.h>
 762 #include <net/if.h>
 763 ])dnl
 764
 765 dnl Same applies for HAVE_NET_IF_VAR_H, which HAVE_NETINET6_ND6_H and
 766 dnl HAVE_NETINET_IN_VAR_H depend upon. But if_var.h depends on if.h, hence
 767 dnl an additional round for it.
 768
 769 AC_CHECK_HEADERS([net/if_var.h], [], [], FRR_INCLUDES)
 770
 771 m4_define([FRR_INCLUDES],
 772 FRR_INCLUDES
 773 [#if HAVE_NET_IF_VAR_H
 774 # include <net/if_var.h>
 775 #endif
 776 ])dnl
 777
 778 AC_CHECK_HEADERS([netinet/in_var.h \
 779         net/if_dl.h net/netopt.h \
 780         inet/nd.h netinet/ip_icmp.h \
 781         sys/sysctl.h sys/sockio.h kvm.h sys/conf.h],
 782         [], [], FRR_INCLUDES)
 783
 784 AC_CHECK_HEADERS([ucontext.h], [], [],
 785 [#ifndef __USE_GNU
 786 #define __USE_GNU
 787 #endif /* __USE_GNU */
 788 FRR_INCLUDES
 789 ])
 790
 791 m4_define([UCONTEXT_INCLUDES],
 792 [#include <ucontext.h>])dnl
 793
 794 AC_CHECK_MEMBERS([ucontext_t.uc_mcontext.uc_regs],
 795   [], [], [UCONTEXT_INCLUDES])
 796 AC_CHECK_MEMBERS([ucontext_t.uc_mcontext.regs],
 797   [AC_CHECK_MEMBERS([ucontext_t.uc_mcontext.regs.nip],
 798    [], [], [UCONTEXT_INCLUDES])],
 799   [], [UCONTEXT_INCLUDES])
 800 AC_CHECK_MEMBERS([ucontext_t.uc_mcontext.gregs],
 801   [], [], [UCONTEXT_INCLUDES])
 802
 803 m4_define([FRR_INCLUDES],
 804 FRR_INCLUDES
 805 [
 806 #include <sys/un.h>
 807 #include <netinet/in_systm.h>
 808 #if HAVE_NETINET_IN_VAR_H
 809 # include <netinet/in_var.h>
 810 #endif
 811 #if HAVE_NET_IF_DL_H
 812 # include <net/if_dl.h>
 813 #endif
 814 #if HAVE_NET_NETOPT_H
 815 # include <net/netopt.h>
 816 #endif
 817 #include <net/route.h>
 818 #if HAVE_INET_ND_H
 819 # include <inet/nd.h>
 820 #endif
 821 #include <arpa/inet.h>
 822 /* Required for IDRP */
 823 #if HAVE_NETINET_IP_ICMP_H
 824 # include <netinet/ip_icmp.h>
 825 #endif
 826 ])dnl
 827
 828 dnl V6 headers are checked below, after we check for v6
 829
 830 AC_MSG_CHECKING([which operating system interface to use])
 831 case "$host_os" in
 832   sunos* | solaris2*)
 833     AC_MSG_RESULT([Solaris])
 834
 835     AC_DEFINE(SUNOS_5, 1, [SunOS 5])
 836     AC_DEFINE(SOLARIS_IPV6, 1, Solaris IPv6)
 837
 838     AC_CHECK_LIB(socket, main)
 839     AC_CHECK_LIB(nsl, main)
 840     AC_CHECK_LIB(umem, main)
 841     AC_CHECK_FUNCS([printstack], [
 842       AC_DEFINE([HAVE_PRINTSTACK],1,[Solaris printstack])
 843       AC_DEFINE([HAVE_STACK_TRACE],1,[Stack symbols decode functionality])
 844     ])
 845     CURSES=-lcurses
 846     SOLARIS="solaris"
 847     ;;
 848   linux*)
 849     AC_MSG_RESULT([Linux])
 850
 851     AC_DEFINE(GNU_LINUX,,GNU Linux)
 852     AC_DEFINE(HAVE_NETLINK,,netlink)
 853     AC_DEFINE(LINUX_IPV6,1,Linux IPv6 stack)
 854
 855     dnl Linux has a compilation problem with mixing
 856     dnl netinet/in.h and linux/in6.h they are not
 857     dnl compatible.  There has been discussion on
 858     dnl how to fix it but no real progress on implementation
 859     dnl when they fix it, remove this
 860     AC_DEFINE(IPV6_MINHOPCOUNT, 73, Linux ipv6 Min Hop Count)
 861
 862     AC_CHECK_DECLS([IFLA_INFO_SLAVE_KIND], [], [], [#include <linux/if_link.h>])
 863     ;;
 864   openbsd*)
 865     AC_MSG_RESULT([OpenBSD])
 866
 867     AC_DEFINE(OPEN_BSD,,OpenBSD)
 868     AC_DEFINE(KAME,1,KAME IPv6)
 869
 870     if test "x${enable_pimd}" != "xno"; then
 871       case "$host_os" in
 872       openbsd6.0)
 873         ;;
 874       openbsd[6-9]*)
 875         AC_MSG_FAILURE([pimd cannot be enabled as PIM support has been removed from OpenBSD 6.1])
 876         ;;
 877       esac
 878     fi
 879     ;;
 880   *)
 881     AC_MSG_RESULT([BSD])
 882
 883     AC_DEFINE(HAVE_NET_RT_IFLIST,,NET_RT_IFLIST)
 884     AC_DEFINE(KAME,1,KAME IPv6)
 885     ;;
 886 esac
 887 AM_CONDITIONAL(SOLARIS, test "${SOLARIS}" = "solaris")
 888
 889 AC_SYS_LARGEFILE
 890
 891 dnl ---------------------
 892 dnl Integrated VTY option
 893 dnl ---------------------
 894 case "${enable_vtysh}" in
 895   "no") VTYSH="";;
 896   *)    VTYSH="vtysh";
 897          AC_DEFINE(VTYSH,,VTY shell)
 898 dnl      Vtysh uses libreadline, which looks for termcap functions at
 899 dnl      configure time.  We follow readlines search order.
 900 dnl      The required procedures are in libtermcap on NetBSD, in
 901 dnl      [TODO] on Linux, and in [TODO] on Solaris.
 902          AC_CHECK_LIB(termcap, tputs, LIBREADLINE="$LIBREADLINE -ltermcap",
 903            [AC_CHECK_LIB(tinfo, tputs, LIBREADLINE="$LIBREADLINE -ltinfo",
 904              [AC_CHECK_LIB(curses, tputs, LIBREADLINE="$LIBREADLINE -lcurses",
 905                [AC_CHECK_LIB(ncurses, tputs,
 906                              LIBREADLINE="$LIBREADLINE -lncurses")]
 907               )]
 908             )]
 909           )
 910          AC_CHECK_LIB(readline, main, LIBREADLINE="-lreadline $LIBREADLINE",,
 911                       "$LIBREADLINE")
 912          if test $ac_cv_lib_readline_main = no; then
 913            AC_MSG_ERROR([vtysh needs libreadline but was not found and usable on your system.])
 914          fi
 915          AC_CHECK_HEADER(readline/history.h)
 916          if test $ac_cv_header_readline_history_h = no;then
 917            AC_MSG_ERROR([readline is too old to have readline/history.h, please update to the latest readline library.])
 918          fi
 919          AC_CHECK_LIB(readline, rl_completion_matches,
 920                       LIBREADLINE="$LIBREADLINE",, "$LIBREADLINE")
 921          if test $ac_cv_lib_readline_rl_completion_matches = no; then
 922            AC_DEFINE(rl_completion_matches,completion_matches,Old readline)
 923          fi
 924          ;;
 925 esac
 926 AC_SUBST(LIBREADLINE)
 927 AM_CONDITIONAL(VTYSH, test "x$VTYSH" = "xvtysh")
 928
 929 dnl ----------
 930 dnl PAM module
 931 dnl
 932 dnl FRR detects the PAM library it is built against by checking for a
 933 dnl functional pam_misc.h (Linux-PAM) or openpam.h (OpenPAM) header. pam_misc.h
 934 dnl is known to #include pam_appl.h, the standard header of a PAM library, and
 935 dnl openpam.h doesn't do that, although depends on the header too. Hence a
 936 dnl little assistance to AC_CHECK_HEADER is necessary for the proper detection
 937 dnl of OpenPAM.
 938 dnl ----------
 939 if test "$with_libpam" = "yes"; then
 940   AC_CHECK_HEADER([security/pam_misc.h],
 941     [AC_DEFINE(HAVE_PAM_MISC_H,,Have pam_misc.h)
 942      AC_DEFINE(PAM_CONV_FUNC,misc_conv,Have misc_conv)
 943      pam_conv_func="misc_conv"
 944     ],
 945     [], FRR_INCLUDES)
 946   AC_CHECK_HEADER([security/openpam.h],
 947     [AC_DEFINE(HAVE_OPENPAM_H,,Have openpam.h)
 948      AC_DEFINE(PAM_CONV_FUNC,openpam_ttyconv,Have openpam_ttyconv)
 949      pam_conv_func="openpam_ttyconv"
 950     ],
 951     [], FRR_INCLUDES[#include <security/pam_appl.h>])
 952   if test -z "$ac_cv_header_security_pam_misc_h$ac_cv_header_security_openpam_h" ; then
 953     AC_MSG_WARN([*** pam support will not be built ***])
 954     with_libpam="no"
 955   fi
 956 fi
 957
 958 if test "$with_libpam" = "yes"; then
 959 dnl took this test from proftpds configure.in and suited to our needs
 960 dnl -------------------------------------------------------------------------
 961 dnl
 962 dnl This next check looks funky due to a linker problem with some versions
 963 dnl of the PAM library.  Prior to 0.72 release, the Linux PAM shared library
 964 dnl omitted requiring libdl linking information. PAM-0.72 or better ships
 965 dnl with RedHat 6.2 and Debian 2.2 or better.
 966 AC_CHECK_LIB(pam, pam_start,
 967   [AC_CHECK_LIB(pam, $pam_conv_func,
 968     [AC_DEFINE(USE_PAM,,Use PAM for authentication)
 969      LIBPAM="-lpam"],
 970     [AC_DEFINE(USE_PAM,,Use PAM for authentication)
 971      LIBPAM="-lpam -lpam_misc"]
 972     )
 973   ],
 974
 975   [AC_CHECK_LIB(pam, pam_end,
 976     [AC_CHECK_LIB(pam, $pam_conv_func,
 977       [AC_DEFINE(USE_PAM,,Use PAM for authentication)
 978        LIBPAM="-lpam -ldl"],
 979       [AC_DEFINE(USE_PAM,,Use PAM for authentication)
 980        LIBPAM="-lpam -ldl -lpam_misc"]
 981      )
 982   ],AC_MSG_WARN([*** pam support will not be built ***]),
 983   [-ldl])
 984   ]
 985 )
 986 fi
 987 AC_SUBST(LIBPAM)
 988
 989 dnl -------------------------------
 990 dnl Endian-ness check
 991 dnl -------------------------------
 992 AC_WORDS_BIGENDIAN
 993
 994 dnl -------------------------------
 995 dnl check the size in byte of the C
 996 dnl -------------------------------
 997 dnl AC_CHECK_SIZEOF(char)
 998 dnl AC_CHECK_SIZEOF(int)
 999 dnl AC_CHECK_SIZEOF(short)
1000 dnl AC_CHECK_SIZEOF(long)
1001
1002 dnl ----------------------------
1003 dnl check existance of functions
1004 dnl ----------------------------
1005 AC_FUNC_FNMATCH
1006 AC_FUNC_FORK
1007 AC_FUNC_MKTIME
1008 AC_FUNC_STAT
1009
1010 dnl -------------------------------
1011 dnl bgpd needs pow() and hence libm
1012 dnl -------------------------------
1013 TMPLIBS="$LIBS"
1014 AC_CHECK_HEADER([math.h],
1015   [AC_CHECK_LIB([m], [pow],
1016     [LIBM="-lm"
1017      LIBS="$LIBS $LIBM"
1018      AC_CHECK_FUNCS(pow,[],[LIBM=""])
1019     ])
1020 ])
1021 if test x"$LIBM" = x ; then
1022   AC_MSG_WARN([Unable to find working pow function - bgpd may not link])
1023 fi
1024 LIBS="$TMPLIBS"
1025 AC_SUBST(LIBM)
1026
1027 AC_CHECK_FUNCS([ppoll], [
1028   AC_DEFINE([HAVE_PPOLL], 1, [have Linux/BSD ppoll()])
1029 ])
1030 AC_CHECK_FUNCS([pollts], [
1031   AC_DEFINE([HAVE_POLLTS], 1, [have NetBSD pollts()])
1032 ])
1033
1034 dnl ---------------
1035 dnl other functions
1036 dnl ---------------
1037 AC_CHECK_FUNCS([ \
1038         strlcat strlcpy \
1039         getgrouplist])
1040
1041 AC_CHECK_HEADER([asm-generic/unistd.h],
1042                 [AC_CHECK_DECL(__NR_setns,
1043                                AC_DEFINE(HAVE_NETNS,, Have netns),,
1044                                FRR_INCLUDES [#include <asm-generic/unistd.h>
1045                                ])
1046                  AC_CHECK_FUNCS(setns)]
1047                )
1048
1049 dnl --------------------------
1050 dnl Determine IS-IS I/O method
1051 dnl --------------------------
1052 AC_DEFINE(ISIS_METHOD_PFPACKET, 1, [ constant value for isis method pfpacket ])
1053 AC_DEFINE(ISIS_METHOD_DLPI,     2, [ constant value for isis method dlpi ])
1054 AC_DEFINE(ISIS_METHOD_BPF,      3, [ constant value for isis method bpf ])
1055 AC_CHECK_HEADER(net/bpf.h)
1056 AC_CHECK_HEADER(sys/dlpi.h)
1057 AC_MSG_CHECKING(zebra IS-IS I/O method)
1058
1059 case "$host_os" in
1060   linux*)
1061     AC_MSG_RESULT(pfpacket)
1062     ISIS_METHOD_MACRO="ISIS_METHOD_PFPACKET"
1063     ;;
1064   solaris* | sunos*)
1065     AC_MSG_RESULT(DLPI)
1066     ISIS_METHOD_MACRO="ISIS_METHOD_DLPI"
1067     ;;
1068   *)
1069     if test $ac_cv_header_net_bpf_h = no; then
1070       if test $ac_cv_header_sys_dlpi_h = no; then
1071         AC_MSG_RESULT(none)
1072         if test "${enable_isisd}" = yes; then
1073           AC_MSG_FAILURE([IS-IS support requested but no packet backend found])
1074         fi
1075         AC_MSG_WARN([*** IS-IS support will not be built ***])
1076         enable_isisd="no"
1077       else
1078         AC_MSG_RESULT(DLPI)
1079       fi
1080       ISIS_METHOD_MACRO="ISIS_METHOD_DLPI"
1081     else
1082       AC_MSG_RESULT(BPF)
1083       ISIS_METHOD_MACRO="ISIS_METHOD_BPF"
1084     fi
1085     ;;
1086 esac
1087 AC_DEFINE_UNQUOTED(ISIS_METHOD, $ISIS_METHOD_MACRO, [ selected method for isis, == one of the constants ])
1088
1089 dnl ------------------------------------
1090 dnl check for broken CMSG_FIRSTHDR macro
1091 dnl ------------------------------------
1092 AC_MSG_CHECKING(for broken CMSG_FIRSTHDR)
1093 AC_RUN_IFELSE([AC_LANG_SOURCE([[
1094 #ifdef SUNOS_5
1095 #define _XPG4_2
1096 #define __EXTENSIONS__
1097 #endif
1098 #include <stdlib.h>
1099 #include <sys/types.h>
1100 #include <sys/socket.h>
1101
1102 main()
1103 {
1104   struct msghdr msg;
1105   char buf[4];
1106
1107   msg.msg_control = buf;
1108   msg.msg_controllen = 0;
1109
1110   if (CMSG_FIRSTHDR(&msg) != NULL)
1111     exit(0);
1112   exit (1);
1113 }]])],[AC_MSG_RESULT(yes - using workaround) AC_DEFINE(HAVE_BROKEN_CMSG_FIRSTHDR,,Broken CMSG_FIRSTHDR)],
1114 [AC_MSG_RESULT(no)],[AC_MSG_RESULT(no)])
1115
1116 dnl ---------------------------------------------------------------
1117 dnl figure out how to specify an interface in multicast sockets API
1118 dnl ---------------------------------------------------------------
1119 AC_CHECK_MEMBERS([struct ip_mreqn.imr_ifindex], [], [], FRR_INCLUDES)
1120
1121 AC_CHECK_HEADERS([linux/mroute.h], [], [],[
1122         #include <sys/socket.h>
1123         #include <netinet/in.h>
1124         #define _LINUX_IN_H             /* For Linux <= 2.6.25 */
1125         #include <linux/types.h>
1126 ])
1127
1128 m4_define([FRR_INCLUDES],
1129 FRR_INCLUDES
1130 [#if HAVE_LINUX_MROUTE_H
1131 # include <linux/mroute.h>
1132 #endif
1133 ])dnl
1134
1135 AC_CHECK_HEADERS([netinet/ip_mroute.h], [], [],[
1136         #include <sys/socket.h>
1137         #include <sys/types.h>
1138         #include <netinet/in.h>
1139         #include <net/route.h>
1140 ])
1141
1142 m4_define([FRR_INCLUDES],
1143 FRR_INCLUDES
1144 [#if HAVE_NETINET_IP_MROUTE_H
1145 # include <netinet/ip_mroute.h>
1146 #endif
1147 ])dnl
1148
1149 AC_MSG_CHECKING([for BSD struct ip_mreq hack])
1150 AC_TRY_COMPILE([#include <sys/param.h>],
1151 [#if (defined(__FreeBSD__) && ((__FreeBSD_version >= 500022 && __FreeBSD_version < 700000) || (__FreeBSD_version < 500000 && __FreeBSD_version >= 440000))) || (defined(__NetBSD__) && defined(__NetBSD_Version__) && __NetBSD_Version__ >= 106010000) || defined(__OpenBSD__) || defined(__APPLE__) || defined(__DragonFly__) || defined(__sun)
1152   return (0);
1153 #else
1154   #error No support for BSD struct ip_mreq hack detected
1155 #endif],[AC_MSG_RESULT(yes)
1156 AC_DEFINE(HAVE_BSD_STRUCT_IP_MREQ_HACK,,[Can pass ifindex in struct ip_mreq])],
1157 AC_MSG_RESULT(no))
1158
1159 AC_MSG_CHECKING([for RFC3678 protocol-independed API])
1160 AC_TRY_COMPILE([
1161 #include <sys/types.h>
1162 #include <netinet/in.h>
1163 ], [struct group_req gr; int sock; setsockopt(sock, IPPROTO_IP, MCAST_JOIN_GROUP, (void*)&gr, sizeof(gr));
1164 ], [AC_MSG_RESULT(yes)
1165 AC_DEFINE(HAVE_RFC3678,1,[Have RFC3678 protocol-independed API])],
1166 AC_MSG_RESULT(no))
1167
1168 dnl ---------------------------------------------------------------
1169 dnl figure out how to check link-state
1170 dnl ---------------------------------------------------------------
1171 AC_CHECK_HEADER( [net/if_media.h],
1172   [m4_define([LINK_DETECT_INCLUDES],
1173     FRR_INCLUDES
1174     [#include <net/if_media.h>
1175   ])
1176   AC_CHECK_MEMBERS( [struct ifmediareq.ifm_status],
1177     AC_DEFINE(HAVE_BSD_LINK_DETECT,,[BSD link-detect]),
1178     [], LINK_DETECT_INCLUDES)],
1179   [],
1180   FRR_INCLUDES)
1181
1182 dnl ---------------------------------------------------------------
1183 dnl Additional, newer way to check link-state using ifi_link_state.
1184 dnl Not available in all BSD's when ifmediareq available
1185 dnl ---------------------------------------------------------------
1186 AC_CHECK_MEMBERS([struct if_data.ifi_link_state],
1187   AC_DEFINE(HAVE_BSD_IFI_LINK_STATE,,[BSD ifi_link_state available]),
1188   [], FRR_INCLUDES)
1189
1190 dnl ------------------------
1191 dnl TCP_MD5SIG socket option
1192 dnl ------------------------
1193
1194 AC_CHECK_HEADER([netinet/tcp.h],
1195    [m4_define([MD5_INCLUDES],
1196       FRR_INCLUDES
1197       [#include <netinet/tcp.h>
1198     ])
1199     AC_CHECK_DECLS([TCP_MD5SIG], [], [], MD5_INCLUDES)],
1200    [],
1201    FRR_INCLUDES)
1202 if test $ac_cv_have_decl_TCP_MD5SIG = no; then
1203   AC_CHECK_HEADER([linux/tcp.h],
1204        [m4_define([MD5_INCLUDES],
1205           FRR_INCLUDES
1206           [#include <linux/tcp.h>
1207         ])
1208        AC_CHECK_DECLS([TCP_MD5SIG], [], [], MD5_INCLUDES)])
1209 fi
1210
1211 dnl ----------------------------------------------------------------------------
1212 dnl figure out if domainname is available in the utsname struct (GNU extension).
1213 dnl ----------------------------------------------------------------------------
1214 AC_CHECK_MEMBERS([struct utsname.domainname], [], [], [#include <sys/utsname.h>])
1215
1216 dnl ------------------
1217 dnl IPv6 header checks
1218 dnl ------------------
1219 AC_CHECK_HEADERS([netinet6/in6.h netinet/in6_var.h \
1220         netinet6/in6_var.h netinet6/nd6.h], [], [],
1221         FRR_INCLUDES)
1222
1223 m4_define([FRR_INCLUDES],dnl
1224 FRR_INCLUDES
1225 [#if HAVE_NETINET6_IN6_H
1226 #include <netinet6/in6.h>
1227 #endif
1228 #if HAVE_NETINET_IN6_VAR_H
1229 #include <netinet/in6_var.h>
1230 #endif
1231 #include <netinet/icmp6.h>
1232 #if HAVE_NETINET6_IN6_VAR_H
1233 # include <netinet6/in6_var.h>
1234 #endif
1235 #if HAVE_NETINET6_ND6_H
1236 # include <netinet6/nd6.h>
1237 #endif
1238 ])dnl
1239
1240 dnl disable doc check
1241 if test "${enable_doc}" = "no";then
1242   DOC=""
1243 else
1244   DOC="doc"
1245 fi
1246
1247 dnl --------------------
1248 dnl Daemon disable check
1249 dnl --------------------
1250 AM_CONDITIONAL(ZEBRA, test "${enable_zebra}" != "no")
1251
1252 if test "${enable_bgpd}" = "no";then
1253   BGPD=""
1254 else
1255   BGPD="bgpd"
1256 fi
1257 AM_CONDITIONAL(BGPD, test "x$BGPD" = "xbgpd")
1258
1259 AM_CONDITIONAL(RIPD, test "${enable_ripd}" != "no")
1260 AM_CONDITIONAL(OSPFD, test "${enable_ospfd}" != "no")
1261 AM_CONDITIONAL(LDPD, test "${enable_ldpd}" != "no")
1262
1263 AS_IF([test "${enable_ldpd}" != "no"], [
1264   AC_DEFINE(HAVE_LDPD, 1, ldpd)
1265 ])
1266
1267 NHRPD=""
1268 case "$host_os" in
1269   linux*)
1270     if test "${enable_nhrpd}" != "no"; then
1271       NHRPD="nhrpd"
1272     fi
1273     ;;
1274   *)
1275     if test "${enable_nhrpd}" = "yes"; then
1276       AC_MSG_ERROR([nhrpd requires kernel APIs that are only present on Linux.])
1277     fi
1278     ;;
1279 esac
1280 AM_CONDITIONAL(NHRPD, test "x$NHRPD" = "xnhrpd")
1281
1282 AM_CONDITIONAL(EIGRPD, test "${enable_eigrpd}" != "no")
1283
1284 if test "${enable_watchfrr}" = "no";then
1285   WATCHFRR=""
1286 else
1287   WATCHFRR="watchfrr"
1288 fi
1289 AM_CONDITIONAL(WATCHFRR, test "x$WATCHFRR" = "xwatchfrr")
1290
1291 OSPFCLIENT=""
1292 if test "${enable_ospfapi}" != "no";then
1293     AC_DEFINE(SUPPORT_OSPF_API,,OSPFAPI)
1294
1295   if test "${enable_ospfclient}" != "no";then
1296       OSPFCLIENT="ospfclient"
1297   fi
1298 fi
1299
1300 AM_CONDITIONAL(OSPFCLIENT, test "x$OSPFCLIENT" = "xospfclient")
1301 AM_CONDITIONAL(RIPNGD, test "${enable_ripngd}" != "no")
1302 AM_CONDITIONAL(BABELD, test "${enable_babeld}" != "no")
1303 AM_CONDITIONAL(OSPF6D, test "${enable_ospf6d}" != "no")
1304 AM_CONDITIONAL(ISISD, test "${enable_isisd}" != "no")
1305 AM_CONDITIONAL(PIMD, test "${enable_pimd}" != "no")
1306
1307 if test "${enable_bgp_announce}" = "no";then
1308   AC_DEFINE(DISABLE_BGP_ANNOUNCE,1,Disable BGP installation to zebra)
1309 else
1310   AC_DEFINE(DISABLE_BGP_ANNOUNCE,0,Disable BGP installation to zebra)
1311 fi
1312
1313 if test "${with_rfp_path}" = "yes" || test x"${with_rfp_path}" = x""; then
1314   with_rfp_path="bgpd/rfp-example"
1315 fi
1316 if test "${with_rfp_path}" != "no"; then
1317   VNC_RFP_PATH="${with_rfp_path}"
1318   AC_SUBST(VNC_RFP_PATH)
1319 fi
1320
1321 if test "${enable_bgp_vnc}" != "no";then
1322   AC_DEFINE(ENABLE_BGP_VNC,1,Enable BGP VNC support)
1323   RFPTEST="${with_rfp_path}/rfptest"
1324   LIBRFP="${with_rfp_path}/librfp"
1325   RFPINC="${with_rfp_path}/librfp"
1326 else
1327   RFPTEST=
1328   LIBRFP=
1329   RFPINC="bgpd/rfp-example/librfp"
1330 fi
1331 # set
1332 AM_CONDITIONAL([ENABLE_BGP_VNC], [test x${enable_bgp_vnc} != xno])
1333
1334 AC_SUBST(DOC)
1335 AC_SUBST(RFPTEST)
1336 AC_SUBST(LIBRFP)
1337 AC_SUBST(RFPINC)
1338 AC_SUBST(BGPD)
1339 AC_SUBST(SOLARIS)
1340 AC_SUBST(VTYSH)
1341 AC_SUBST(CURSES)
1342 AC_CHECK_LIB(crypt, crypt, [],
1343                     [AC_CHECK_LIB(crypto, DES_crypt)])
1344 AC_CHECK_LIB(resolv, res_init)
1345
1346 dnl ---------------------------
1347 dnl check system has PCRE regexp
1348 dnl ---------------------------
1349 if test "x$enable_pcreposix" = "xyes"; then
1350   AC_CHECK_LIB(pcreposix, regexec, [], [
1351     AC_MSG_ERROR([--enable-pcreposix given but unable to find libpcreposix])
1352   ])
1353 fi
1354 AC_SUBST(HAVE_LIBPCREPOSIX)
1355
1356 dnl ------------------
1357 dnl check C-Ares library
1358 dnl ------------------
1359 if test "${NHRPD}" != ""; then
1360   PKG_CHECK_MODULES([CARES], [libcares], , [
1361     AC_MSG_ERROR([trying to build nhrpd, but libcares not found. install c-ares and its -dev headers.])
1362   ])
1363 fi
1364
1365
1366 dnl ------------------
1367 dnl check Net-SNMP library
1368 dnl ------------------
1369 if test "${enable_snmp}" != "" -a "${enable_snmp}" != "no"; then
1370    AC_PATH_TOOL([NETSNMP_CONFIG], [net-snmp-config], [no])
1371    if test x"$NETSNMP_CONFIG" = x"no"; then
1372       AC_MSG_ERROR([--enable-snmp given but unable to find net-snmp-config])
1373    fi
1374    SNMP_LIBS="`${NETSNMP_CONFIG} --agent-libs`"
1375    SNMP_CFLAGS="`${NETSNMP_CONFIG} --base-cflags`"
1376    AC_MSG_CHECKING([whether we can link to Net-SNMP])
1377    AC_LINK_IFELSE_FLAGS([$SNMP_CFLAGS], [$SNMP_LIBS], [AC_LANG_PROGRAM([
1378 int main(void);
1379 ],
1380 [
1381 {
1382   return 0;
1383 }
1384 ])], [
1385      AC_MSG_ERROR([--enable-snmp given but not usable])])
1386    case "${enable_snmp}" in
1387      yes)
1388       SNMP_METHOD=agentx
1389       ;;
1390      smux|agentx)
1391       SNMP_METHOD="${enable_snmp}"
1392       ;;
1393      *)
1394       AC_MSG_ERROR([--enable-snmp given with an unknown method (${enable_snmp}). Use smux or agentx])
1395       ;;
1396    esac
1397    AH_TEMPLATE([SNMP_SMUX], [Use SNMP SMUX to interface with snmpd])
1398    AH_TEMPLATE([SNMP_AGENTX], [Use SNMP AgentX to interface with snmpd])
1399    AC_DEFINE_UNQUOTED(AS_TR_CPP(SNMP_${SNMP_METHOD}),,SNMP method to interface with snmpd)
1400 fi
1401 AM_CONDITIONAL([SNMP], [test "x${SNMP_METHOD}" != "x"])
1402 AC_SUBST(SNMP_LIBS)
1403 AC_SUBST(SNMP_CFLAGS)
1404
1405 dnl ---------------
1406 dnl math
1407 dnl ---------------
1408 AC_SEARCH_LIBS([sqrt], [m])
1409
1410 dnl ---------------
1411 dnl dlopen & dlinfo
1412 dnl ---------------
1413 AC_SEARCH_LIBS(dlopen, [dl dld], [], [
1414   AC_MSG_ERROR([unable to find the dlopen()])
1415 ])
1416
1417 AC_CHECK_HEADERS([link.h])
1418
1419 AC_MSG_CHECKING([for dlinfo(RTLD_DI_ORIGIN)])
1420 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
1421 #include <stdlib.h>
1422 #ifdef HAVE_LINK_H
1423 #include <link.h>
1424 #endif
1425 #include <dlfcn.h>
1426 ]], [[
1427   char origin[1];
1428   dlinfo (NULL, RTLD_DI_ORIGIN, &origin);
1429 ]])], [
1430   AC_MSG_RESULT(yes)
1431   AC_DEFINE(HAVE_DLINFO_ORIGIN, 1, [Have dlinfo RTLD_DI_ORIGIN])
1432 ], [
1433   AC_MSG_RESULT(no)
1434 ])
1435
1436 AC_MSG_CHECKING([for dlinfo(RTLD_DI_LINKMAP)])
1437 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
1438 #include <stdlib.h>
1439 #ifdef HAVE_LINK_H
1440 #include <link.h>
1441 #endif
1442 #include <dlfcn.h>
1443 ]], [[
1444   struct link_map *lm = NULL;
1445   dlinfo (NULL, RTLD_DI_LINKMAP, &lm);
1446 ]])], [
1447   AC_MSG_RESULT(yes)
1448   AC_DEFINE(HAVE_DLINFO_LINKMAP, 1, [Have dlinfo RTLD_DI_LINKMAP])
1449 ], [
1450   AC_MSG_RESULT(no)
1451 ])
1452
1453
1454 AM_CONDITIONAL(SNMP, test "x$SNMP_METHOD" = "xagentx")
1455
1456 dnl ---------------------------
1457 dnl sockaddr and netinet checks
1458 dnl ---------------------------
1459 AC_CHECK_TYPES([
1460         struct sockaddr_dl,
1461         struct vifctl, struct mfcctl, struct sioc_sg_req,
1462         vifi_t, struct sioc_vif_req, struct igmpmsg,
1463         struct ifaliasreq, struct if6_aliasreq, struct in6_aliasreq,
1464         struct nd_opt_adv_interval, struct rt_addrinfo,
1465         struct nd_opt_homeagent_info, struct nd_opt_adv_interval],
1466         [], [], FRR_INCLUDES)
1467
1468 AC_CHECK_MEMBERS([struct sockaddr.sa_len,
1469         struct sockaddr_in.sin_len, struct sockaddr_un.sun_len,
1470         struct sockaddr_dl.sdl_len,
1471         struct if6_aliasreq.ifra_lifetime,
1472         struct nd_opt_adv_interval.nd_opt_ai_type],
1473         [], [], FRR_INCLUDES)
1474
1475 dnl ---------------------------
1476 dnl IRDP/pktinfo/icmphdr checks
1477 dnl ---------------------------
1478
1479 AC_CHECK_TYPES([struct in_pktinfo], [
1480   AC_CHECK_TYPES([struct icmphdr], [
1481     IRDP=true
1482   ], [
1483     IRDP=false
1484   ], [FRR_INCLUDES])
1485 ], [
1486   IRDP=false
1487 ], [FRR_INCLUDES])
1488
1489 case "${enable_irdp}" in
1490 yes)
1491   $IRDP || AC_MSG_ERROR(['IRDP requires in_pktinfo at the moment!'])
1492   ;;
1493 no)
1494   IRDP=false
1495   ;;
1496 esac
1497
1498 AM_CONDITIONAL(IRDP, $IRDP)
1499
1500 dnl -----------------------
1501 dnl checking for IP_PKTINFO
1502 dnl -----------------------
1503 AC_MSG_CHECKING(for IP_PKTINFO)
1504 AC_TRY_COMPILE([#include <netdb.h>], [
1505   int opt = IP_PKTINFO;
1506 ], [
1507   AC_MSG_RESULT(yes)
1508   AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
1509 ], [
1510   AC_MSG_RESULT(no)
1511 ])
1512
1513 dnl ---------------------------
1514 dnl checking for IP_RECVDSTADDR
1515 dnl ---------------------------
1516 AC_MSG_CHECKING(for IP_RECVDSTADDR)
1517 AC_TRY_COMPILE([#include <netinet/in.h>], [
1518   int opt = IP_RECVDSTADDR;
1519 ], [
1520   AC_MSG_RESULT(yes)
1521   AC_DEFINE(HAVE_IP_RECVDSTADDR, 1, [Have IP_RECVDSTADDR])
1522 ], [
1523   AC_MSG_RESULT(no)
1524 ])
1525
1526 dnl ----------------------
1527 dnl checking for IP_RECVIF
1528 dnl ----------------------
1529 AC_MSG_CHECKING(for IP_RECVIF)
1530 AC_TRY_COMPILE([#include <netinet/in.h>], [
1531   int opt = IP_RECVIF;
1532 ], [
1533   AC_MSG_RESULT(yes)
1534   AC_DEFINE(HAVE_IP_RECVIF, 1, [Have IP_RECVIF])
1535 ], [
1536   AC_MSG_RESULT(no)
1537 ])
1538
1539 dnl ----------------------
1540 dnl checking for SO_BINDANY
1541 dnl ----------------------
1542 AC_MSG_CHECKING(for SO_BINDANY)
1543 AC_TRY_COMPILE([#include <sys/socket.h>], [
1544   int opt = SO_BINDANY;
1545 ], [
1546   AC_MSG_RESULT(yes)
1547   AC_DEFINE(HAVE_SO_BINDANY, 1, [Have SO_BINDANY])
1548 ], [
1549   AC_MSG_RESULT(no)
1550 ])
1551
1552 dnl ----------------------
1553 dnl checking for IP_FREEBIND
1554 dnl ----------------------
1555 AC_MSG_CHECKING(for IP_FREEBIND)
1556 AC_TRY_COMPILE([#include <netinet/in.h>], [
1557   int opt = IP_FREEBIND;
1558 ], [
1559   AC_MSG_RESULT(yes)
1560   AC_DEFINE(HAVE_IP_FREEBIND, 1, [Have IP_FREEBIND])
1561 ], [
1562   AC_MSG_RESULT(no)
1563 ])
1564
1565 dnl --------------------------------------
1566 dnl checking for be32dec existence or not
1567 dnl --------------------------------------
1568 AC_CHECK_DECLS([be32enc, be32dec], [], [],
1569                [#include <sys/endian.h>])
1570
1571 dnl --------------------------------------
1572 dnl checking for clock_time monotonic struct and call
1573 dnl --------------------------------------
1574 AC_CHECK_DECL(CLOCK_MONOTONIC,
1575         [AC_CHECK_LIB(rt, clock_gettime, [LIBS="$LIBS -lrt"])
1576          AC_DEFINE(HAVE_CLOCK_MONOTONIC,, Have monotonic clock)
1577 ], [AC_MSG_RESULT(no)], [FRR_INCLUDES])
1578
1579 dnl --------------------------------------
1580 dnl checking for flex and bison
1581 dnl --------------------------------------
1582
1583 AM_PROG_LEX
1584 AC_MSG_CHECKING(version of flex)
1585 frr_ac_flex_version="$(eval $LEX -V | grep flex | head -n 1)"
1586 frr_ac_flex_version="${frr_ac_flex_version##* }"
1587 AC_MSG_RESULT([$frr_ac_flex_version])
1588 AX_COMPARE_VERSION([$frr_ac_flex_version], [lt], [2.5.20], [
1589   LEX="$SHELL $missing_dir/missing flex"
1590   if test -f "${srcdir}/lib/command_lex.c" -a -f "${srcdir}/lib/command_lex.h"; then
1591     AC_MSG_WARN([using pregenerated flex output files])
1592   else
1593     AC_MSG_ERROR([flex failure and pregenerated files not included (probably a git build)])
1594   fi
1595   AC_SUBST([LEX_OUTPUT_ROOT], [lex.yy])
1596   AC_SUBST([LEXLIB], [''])
1597 ])
1598
1599 AC_PROG_YACC
1600 dnl thanks GNU bison for this b*llshit...
1601 AC_MSG_CHECKING(version of bison)
1602 frr_ac_bison_version="$(eval $YACC -V | grep bison | head -n 1)"
1603 frr_ac_bison_version="${frr_ac_bison_version##* }"
1604 frr_ac_bison_missing="false"
1605 case "x${frr_ac_bison_version}" in
1606   x2.7*)
1607     BISON_OPENBRACE='"'
1608     BISON_CLOSEBRACE='"'
1609     BISON_VERBOSE=''
1610     AC_MSG_RESULT([$frr_ac_bison_version - 2.7 or older])
1611     ;;
1612   x2.*|x1.*)
1613     AC_MSG_RESULT([$frr_ac_bison_version])
1614     AC_MSG_WARN([installed bison is too old.  Please install GNU bison 2.7.x or newer.])
1615     frr_ac_bison_missing="true"
1616     ;;
1617   x)
1618     AC_MSG_RESULT([none])
1619     AC_MSG_WARN([could not determine bison version.  Please install GNU bison 2.7.x or newer.])
1620     frr_ac_bison_missing="true"
1621     ;;
1622   *)
1623     BISON_OPENBRACE='{'
1624     BISON_CLOSEBRACE='}'
1625     BISON_VERBOSE='-Dparse.error=verbose'
1626     AC_MSG_RESULT([$frr_ac_bison_version - 3.0 or newer])
1627     ;;
1628 esac
1629 AC_SUBST(BISON_OPENBRACE)
1630 AC_SUBST(BISON_CLOSEBRACE)
1631 AC_SUBST(BISON_VERBOSE)
1632
1633 if $frr_ac_bison_missing; then
1634   YACC="$SHELL $missing_dir/missing bison -y"
1635   if test -f "${srcdir}/lib/command_parse.c" -a -f "${srcdir}/lib/command_parse.h"; then
1636     AC_MSG_WARN([using pregenerated bison output files])
1637   else
1638     AC_MSG_ERROR([bison failure and pregenerated files not included (probably a git build)])
1639   fi
1640 fi
1641
1642 dnl -------------------
1643 dnl capabilities checks
1644 dnl -------------------
1645 if test "${enable_capabilities}" != "no"; then
1646   AC_MSG_CHECKING(whether prctl PR_SET_KEEPCAPS is available)
1647   AC_TRY_COMPILE([#include <sys/prctl.h>],[prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0);],
1648     [AC_MSG_RESULT(yes)
1649      AC_DEFINE(HAVE_PR_SET_KEEPCAPS,,prctl)
1650      frr_ac_keepcaps="yes"],
1651      AC_MSG_RESULT(no)
1652   )
1653   if test x"${frr_ac_keepcaps}" = x"yes"; then
1654     AC_CHECK_HEADERS(sys/capability.h)
1655   fi
1656   if test x"${ac_cv_header_sys_capability_h}" = x"yes"; then
1657     AC_CHECK_LIB(cap, cap_init,
1658       [AC_DEFINE(HAVE_LCAPS,1,Capabilities)
1659        LIBCAP="-lcap"
1660        frr_ac_lcaps="yes"]
1661     )
1662   else
1663     AC_CHECK_HEADERS(priv.h,
1664      [AC_MSG_CHECKING(Solaris style privileges are available)
1665       AC_TRY_COMPILE([#include <priv.h>],[getpflags(PRIV_AWARE);],
1666           [AC_MSG_RESULT(yes)
1667            AC_DEFINE(HAVE_SOLARIS_CAPABILITIES,1,getpflags)
1668            frr_ac_scaps="yes"],
1669            AC_MSG_RESULT(no)
1670       )
1671      ]
1672    )
1673   fi
1674   if test x"${frr_ac_scaps}" = x"yes" \
1675        -o x"${frr_ac_lcaps}" = x"yes"; then
1676     AC_DEFINE(HAVE_CAPABILITIES,1,capabilities)
1677   fi
1678 fi
1679 AC_SUBST(LIBCAP)
1680
1681 dnl ---------------------------
1682 dnl check for glibc 'backtrace'
1683 dnl ---------------------------
1684 if test x"${enable_backtrace}" != x"no" ; then
1685   backtrace_ok=no
1686   AC_CHECK_HEADER([execinfo.h], [
1687     AC_SEARCH_LIBS([backtrace], [execinfo], [
1688       AC_DEFINE(HAVE_GLIBC_BACKTRACE,,[Glibc backtrace])
1689       AC_DEFINE(HAVE_STACK_TRACE,,[Stack symbol decoding])
1690       backtrace_ok=yes
1691     ],, [-lm])
1692   ])
1693
1694   if test x"${enable_backtrace}" = x"yes" -a x"${backtrace_ok}" = x"no"; then
1695     dnl user explicitly requested backtrace but we failed to find support
1696     AC_MSG_FAILURE([failed to find backtrace support])
1697   fi
1698 fi
1699
1700 dnl -----------------------------------------
1701 dnl check for malloc mallinfo struct and call
1702 dnl this must try and link using LIBS, in
1703 dnl order to check no alternative allocator
1704 dnl has been specified, which might not provide
1705 dnl mallinfo, e.g. such as Umem on Solaris.
1706 dnl -----------------------------------------
1707 AC_CHECK_HEADER([malloc.h],
1708  [AC_MSG_CHECKING(whether mallinfo is available)
1709   AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <malloc.h>]],
1710                         [[struct mallinfo ac_x; ac_x = mallinfo ();]])],
1711       [AC_MSG_RESULT(yes)
1712        AC_DEFINE(HAVE_MALLINFO,,mallinfo)],
1713        AC_MSG_RESULT(no)
1714   )
1715  ], [], FRR_INCLUDES)
1716
1717 dnl ------
1718 dnl ZeroMQ
1719 dnl ------
1720 if test "x$enable_zeromq" != "xno"; then
1721   PKG_CHECK_MODULES(ZEROMQ, [libzmq >= 4.0.0], [
1722     AC_DEFINE(HAVE_ZEROMQ, 1, [Enable ZeroMQ support])
1723     ZEROMQ=true
1724   ], [
1725     if test "x$enable_zeromq" = "xyes"; then
1726       AC_MSG_ERROR([configuration specifies --enable-zeromq but libzmq was not found])
1727     fi
1728   ])
1729 fi
1730 AM_CONDITIONAL([ZEROMQ], test "x$ZEROMQ" = "xtrue")
1731
1732 dnl ----------
1733 dnl configure date
1734 dnl ----------
1735 CONFDATE=`date '+%Y%m%d'`
1736 AC_SUBST(CONFDATE)
1737
1738 dnl ------------------------------
1739 dnl set paths for state directory
1740 dnl ------------------------------
1741 AC_MSG_CHECKING(directory to use for state file)
1742 if test "${prefix}" = "NONE"; then
1743   frr_statedir_prefix="";
1744 else
1745   frr_statedir_prefix=${prefix}
1746 fi
1747 if test "${localstatedir}" = '${prefix}/var'; then
1748   for FRR_STATE_DIR in ${frr_statedir_prefix}/var/run dnl
1749                         ${frr_statedir_prefix}/var/adm dnl
1750                         ${frr_statedir_prefix}/etc dnl
1751                         /var/run        dnl
1752                         /var/adm        dnl
1753                         /etc            dnl
1754                         /dev/null;
1755   do
1756     test -d $FRR_STATE_DIR && break
1757   done
1758   frr_statedir=$FRR_STATE_DIR
1759 else
1760   frr_statedir=${localstatedir}
1761 fi
1762 if test $frr_statedir = "/dev/null"; then
1763     AC_MSG_ERROR('STATE DIRECTORY NOT FOUND! FIX OR SPECIFY --localstatedir!')
1764 fi
1765 AC_MSG_RESULT(${frr_statedir})
1766 AC_SUBST(frr_statedir)
1767
1768 AC_DEFINE_UNQUOTED(LDPD_SOCKET, "$frr_statedir/ldpd.sock",ldpd control socket)
1769 AC_DEFINE_UNQUOTED(ZEBRA_SERV_PATH, "$frr_statedir/zserv.api",zebra api socket)
1770 AC_DEFINE_UNQUOTED(DAEMON_VTY_DIR, "$frr_statedir",daemon vty directory)
1771
1772 dnl autoconf does this, but it does it too late...
1773 test "x$prefix" = xNONE && prefix=$ac_default_prefix
1774 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
1775
1776 dnl get the full path, recursing through variables...
1777 vtysh_bin="$bindir/vtysh"
1778 for I in 1 2 3 4 5 6 7 8 9 10; do
1779         eval vtysh_bin="\"$vtysh_bin\""
1780 done
1781 AC_DEFINE_UNQUOTED(VTYSH_BIN_PATH, "$vtysh_bin",path to vtysh binary)
1782
1783 CFG_SYSCONF="$sysconfdir"
1784 CFG_SBIN="$sbindir"
1785 CFG_STATE="$frr_statedir"
1786 CFG_MODULE="$moduledir"
1787 for I in 1 2 3 4 5 6 7 8 9 10; do
1788         eval CFG_SYSCONF="\"$CFG_SYSCONF\""
1789         eval CFG_SBIN="\"$CFG_SBIN\""
1790         eval CFG_STATE="\"$CFG_STATE\""
1791         eval CFG_MODULE="\"$CFG_MODULE\""
1792 done
1793 AC_SUBST(CFG_SYSCONF)
1794 AC_SUBST(CFG_SBIN)
1795 AC_SUBST(CFG_STATE)
1796 AC_SUBST(CFG_MODULE)
1797 AC_DEFINE_UNQUOTED(MODULE_PATH, "$CFG_MODULE", path to modules)
1798
1799 dnl ---------------------------
1800 dnl Check htonl works correctly
1801 dnl ---------------------------
1802 AC_MSG_CHECKING(for working htonl)
1803 AC_CACHE_VAL(ac_cv_htonl_works,
1804  [AC_LINK_IFELSE([AC_LANG_PROGRAM([FRR_INCLUDES],[htonl (0);])],
1805                 [ac_cv_htonl_works=yes], [ac_cv_htonl_works=no])
1806  ]
1807 )
1808 AC_MSG_RESULT($ac_cv_htonl_works)
1809
1810 AC_CONFIG_FILES([Makefile
1811           bgpd/Makefile
1812           vtysh/Makefile
1813           doc/Makefile tests/Makefile
1814           bgpd/rfp-example/rfptest/Makefile bgpd/rfp-example/librfp/Makefile
1815           redhat/frr.spec
1816           snapcraft/snapcraft.yaml
1817           lib/version.h
1818           tests/lib/cli/test_cli.refout
1819           doc/defines.texi
1820           doc/bgpd.8
1821           doc/isisd.8
1822           doc/ospf6d.8
1823           doc/ospfclient.8
1824           doc/ospfd.8
1825           doc/ldpd.8
1826           doc/ripd.8
1827           doc/eigrpd.8
1828           doc/ripngd.8
1829           doc/pimd.8
1830           doc/nhrpd.8
1831           doc/vtysh.1
1832           doc/watchfrr.8
1833           doc/zebra.8
1834           doc/frr.1
1835           doc/frr-args.8
1836           pkgsrc/bgpd.sh pkgsrc/ospf6d.sh pkgsrc/ospfd.sh
1837           pkgsrc/ripd.sh pkgsrc/ripngd.sh pkgsrc/zebra.sh
1838           pkgsrc/eigrpd.sh])
1839
1840 if test "${enable_bgp_vnc}" != "no"; then
1841    if test "${with_rfp_path}" != "bgpd/rfp-example" ; then
1842       AC_CONFIG_FILES([${with_rfp_path}/rfptest/Makefile ${with_rfp_path}/librfp/Makefile])
1843    fi
1844 fi
1845
1846 AC_CONFIG_FILES([solaris/Makefile])
1847
1848 AC_CONFIG_FILES([vtysh/extract.pl],[chmod +x vtysh/extract.pl])
1849
1850 AC_CONFIG_COMMANDS([lib/route_types.h], [
1851         dst="${ac_abs_top_builddir}/lib/route_types.h"
1852         ${PERL} "${ac_abs_top_srcdir}/lib/route_types.pl" \
1853                 < "${ac_abs_top_srcdir}/lib/route_types.txt" \
1854                 > "${dst}.tmp"
1855         test -f "${dst}" \
1856                 && diff "${dst}.tmp" "${dst}" >/dev/null 2>/dev/null \
1857                 && rm "${dst}.tmp" \
1858                 || mv "${dst}.tmp" "${dst}"
1859 ], [
1860         PERL="$PERL"
1861 ])
1862
1863 AS_IF([test "x$with_pkg_git_version" = "xyes"], [
1864     AC_CONFIG_COMMANDS([lib/gitversion.h], [
1865         dst="${ac_abs_top_builddir}/lib/gitversion.h"
1866         ${PERL} "${ac_abs_top_srcdir}/lib/gitversion.pl" \
1867                 "${ac_abs_top_srcdir}" \
1868                 > "${dst}.tmp"
1869         test -f "${dst}" \
1870                 && diff "${dst}.tmp" "${dst}" >/dev/null 2>/dev/null \
1871                 && rm "${dst}.tmp" \
1872                 || mv "${dst}.tmp" "${dst}"
1873     ], [
1874         PERL="$PERL"
1875     ])
1876 ])
1877
1878 ## Hack, but working solution to avoid rebuilding of frr.info.
1879 ## It's already in CVS until texinfo 4.7 is more common.
1880 AC_OUTPUT
1881
1882 echo "
1883 FRRouting configuration
1884 ------------------------------
1885 FRR version             : ${PACKAGE_VERSION}
1886 host operating system   : ${host_os}
1887 source code location    : ${srcdir}
1888 compiler                : ${CC}
1889 compiler flags          : ${CFLAGS}
1890 make                    : ${MAKE-make}
1891 linker flags            : ${LDFLAGS} ${LIBS} ${LIBCAP} ${LIBREADLINE} ${LIBM}
1892 state file directory    : ${frr_statedir}
1893 config file directory   : `eval echo \`echo ${sysconfdir}\``
1894 example directory       : `eval echo \`echo ${exampledir}\``
1895 module directory        : ${CFG_MODULE}
1896 user to run as          : ${enable_user}
1897 group to run as         : ${enable_group}
1898 group for vty sockets   : ${enable_vty_group}
1899 config file mask        : ${enable_configfile_mask}
1900 log file mask           : ${enable_logfile_mask}
1901 zebra protobuf enabled  : ${have_protobuf:-no}
1902
1903 The above user and group must have read/write access to the state file
1904 directory and to the config files in the config file directory."