2 ## Configure template file for FRRouting.
3 ## autoconf will generate configure script.
5 ## Copyright (c) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
6 ## Portions Copyright (c) 2003 Paul Jakma <paul@dishone.st>
10 AC_INIT(frr, 5.1-dev, [https://github.com/frrouting/frr/issues])
11 PACKAGE_URL="https://frrouting.org/"
13 PACKAGE_FULLNAME="FRRouting"
14 AC_SUBST(PACKAGE_FULLNAME)
16 CONFIG_ARGS="$ac_configure_args"
19 AC_CONFIG_SRCDIR(lib/zebra.h)
20 AC_CONFIG_MACRO_DIR([m4])
22 dnl -----------------------------------
23 dnl Get hostname and other information.
24 dnl -----------------------------------
28 AS_IF([test "$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.])
32 test -d hosttools || mkdir hosttools
33 abssrc="`cd \"${srcdir}\"; pwd`"
36 AC_MSG_NOTICE([... cross-compilation: creating hosttools directory and self-configuring for build platform tools])
37 AC_MSG_NOTICE([... use HOST_CPPFLAGS / HOST_CFLAGS / HOST_LDFLAGS if neccessary])
40 ( CPPFLAGS="$HOST_CPPFLAGS"; \
41 CFLAGS="$HOST_CFLAGS"; \
42 LDFLAGS="$HOST_LDFLAGS"; \
43 cd hosttools; "${abssrc}/configure" "--host=$build" "--build=$build" "--enable-clippy-only" "--disable-nhrpd" "--disable-vtysh"; )
46 AC_MSG_NOTICE([... cross-compilation: finished self-configuring for build platform tools])
50 HOSTTOOLS="hosttools/"
56 AM_CONDITIONAL([BUILD_CLIPPY], [$build_clippy])
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)
65 AC_PATH_PROG(PERL, perl)
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
77 dnl default is to match previous behavior
79 AC_ARG_ENABLE([pkgsrcrcdir],
80 AS_HELP_STRING([--enable-pkgsrcrcdir],
81 [specify directory for rc.d scripts]),
82 pkgsrcrcdir="$enableval",)
83 dnl XXX add --pkgsrcrcdir to autoconf standard directory list somehow
85 AM_CONDITIONAL([PKGSRC], [test "x$pkgsrcrcdir" != "x"])
87 AC_ARG_WITH([moduledir], [AS_HELP_STRING([--with-moduledir=DIR], [module directory (${libdir}/frr/modules)])], [
90 moduledir="\${libdir}/frr/modules"
92 AC_SUBST([moduledir], [$moduledir])
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"
100 no) tcmalloc_enabled=false ;;
101 *) AC_MSG_ERROR(bad value ${enableval} for --enable-tcmalloc) ;;
102 esac],[tcmalloc_enabled=false])
105 dnl Thanks autoconf, but we don't want a default -g -O2. We have our own
106 dnl flag determination logic.
109 dnl --------------------
110 dnl Check CC and friends
111 dnl --------------------
112 dnl note orig_cflags is also used further down
113 orig_cflags="$CFLAGS"
118 dnl remove autoconf default "-g -O2"
119 CFLAGS="$orig_cflags"
121 dnl NB: see C11 below
126 dnl autoconf 2.59 appears not to support AC_PROG_SED
128 AC_CHECK_PROG([SED],[sed],[sed],[/bin/false])
130 dnl try and enable CFLAGS that are useful for FRR
131 dnl - specifically, options to control warnings
133 AC_USE_SYSTEM_EXTENSIONS
134 AC_DEFUN([AC_C_FLAG], [{
136 ac_c_flag_save="$CFLAGS"
138 AC_MSG_CHECKING([[whether $CC supports $1]])
140 [AC_LANG_PROGRAM([[]])],
143 m4_if([$3], [], [], [
144 CFLAGS="$ac_c_flag_save"
148 CFLAGS="$ac_c_flag_save"
155 AC_DEFUN([AC_LINK_IFELSE_FLAGS], [{
157 ac_cflags_save="$CFLAGS"
165 CFLAGS="$ac_cflags_save"
170 CFLAGS="$ac_cflags_save"
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])
181 dnl AC_PROG_CC_C99 may change CC to include -std=gnu99 or something
183 CC="${CC% -std=gnu99}"
186 AC_C_FLAG([-std=gnu11], [CC="$ac_cc"], [CC="$CC -std=gnu11"])
188 dnl AddressSanitizer support
189 AC_ARG_ENABLE([address-sanitizer], AS_HELP_STRING([--enable-address-sanitizer], \
190 [enabled AddressSanitizer support for detecting a wide variety of \
191 memory allocation and deallocation errors]), \
192 [AC_DEFINE(HAVE_ADDRESS_SANITIZER, 1, [enable AddressSanitizer])
193 ASAN_FLAGS="-fsanitize=address"
194 SAN_CLIPPY_FLAGS="-fno-sanitize=all"
195 AC_SUBST([ASAN_FLAGS])
196 AC_SUBST([SAN_CLIPPY_FLAGS])
198 AC_TRY_COMPILE([],[const int i=0;],[AC_MSG_NOTICE([Address Sanitizer Enabled])],
199 [AC_MSG_ERROR([Address Sanitizer not available])])
202 dnl ThreadSanitizer support
203 AC_ARG_ENABLE([thread-sanitizer], AS_HELP_STRING([--enable-thread-sanitizer], \
204 [enabled ThreadSanitizer support for detecting data races]), \
205 [AC_DEFINE(HAVE_THREAD_SANITIZER, 1, [enable ThreadSanitizer])
206 TSAN_FLAGS="-fsanitize=thread"
207 SAN_CLIPPY_FLAGS="-fno-sanitize=all"
208 AC_SUBST([TSAN_FLAGS])
209 AC_SUBST([SAN_CLIPPY_FLAGS])
211 AC_TRY_COMPILE([],[const int i=0;],[AC_MSG_NOTICE([Thread Sanitizer Enabled])],
212 [AC_MSG_ERROR([Thread Sanitizer not available])])
215 dnl MemorySanitizer support
216 AC_ARG_ENABLE([memory-sanitizer], AS_HELP_STRING([--enable-memory-sanitizer], \
217 [enabled MemorySanitizer support for detecting uninitialized memory reads]), \
218 [AC_DEFINE(HAVE_THREAD_SANITIZER, 1, [enable MemorySanitizer])
219 MSAN_FLAGS="-fsanitize=memory -fPIE -pie"
220 SAN_CLIPPY_FLAGS="-fno-sanitize=all"
221 AC_SUBST([MSAN_FLAGS])
222 AC_SUBST([SAN_CLIPPY_FLAGS])
224 AC_TRY_COMPILE([],[const int i=0;],[AC_MSG_NOTICE([Memory Sanitizer Enabled])],
225 [AC_MSG_ERROR([Memory Sanitizer not available])])
228 dnl if the user has specified any CFLAGS, override our settings
229 if test "x${enable_gcov}" = "xyes"; then
230 if test "z$orig_cflags" = "z"; then
231 AC_C_FLAG([-coverage])
235 LDFLAGS="${LDFLAGS} -lgcov"
236 elif test "x${enable_dev_build}" = "xyes"; then
237 AC_DEFINE(DEV_BUILD,,Build for development)
238 if test "z$orig_cflags" = "z"; then
243 if test "z$orig_cflags" = "z"; then
250 AM_CONDITIONAL([DEV_BUILD], [test "x$enable_dev_build" = "xyes"])
252 dnl always want these CFLAGS
253 AC_C_FLAG([-fno-omit-frame-pointer])
254 AC_C_FLAG([-funwind-tables])
257 AC_C_FLAG([-Wmissing-prototypes])
258 AC_C_FLAG([-Wmissing-declarations])
259 AC_C_FLAG([-Wpointer-arith])
260 AC_C_FLAG([-Wbad-function-cast])
261 AC_C_FLAG([-Wwrite-strings])
262 if test x"${enable_gcc_ultra_verbose}" = x"yes" ; then
263 AC_C_FLAG([-Wcast-qual])
264 AC_C_FLAG([-Wstrict-prototypes])
265 AC_C_FLAG([-Wmissing-noreturn])
266 AC_C_FLAG([-Wmissing-format-attribute])
267 AC_C_FLAG([-Wunreachable-code])
268 AC_C_FLAG([-Wpacked])
269 AC_C_FLAG([-Wpadded])
271 AC_C_FLAG([-Wno-unused-result])
273 AC_C_FLAG([-Wno-unused-parameter])
274 AC_C_FLAG([-Wno-missing-field-initializers])
276 dnl ICC emits a broken warning for const char *x = a ? "b" : "c";
277 dnl for some reason the string consts get 'promoted' to char *,
278 dnl triggering a const to non-const conversion warning.
279 AC_C_FLAG([-diag-disable 3179])
281 if test x"${enable_werror}" = x"yes" ; then
286 dnl need link on this one, not compile
288 ac_ld_flag_save="$LDFLAGS"
289 LDFLAGS="$LDFLAGS -rdynamic"
290 AC_MSG_CHECKING([[whether linker supports -rdynamic]])
292 [AC_LANG_PROGRAM([[]])],
293 [AC_MSG_RESULT([yes])],
295 LDFLAGS="$ac_ld_flag_save"
306 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
307 LIBS="$PTHREAD_LIBS $LIBS"
309 AC_MSG_FAILURE([This FRR version needs pthreads])
318 AC_CHECK_TOOL(AR, ar)
320 dnl -----------------
321 dnl System extensions
322 dnl -----------------
330 dnl ----------------------
331 dnl Packages configuration
332 dnl ----------------------
333 AC_ARG_WITH(pkg-extra-version,
334 AS_HELP_STRING([--with-pkg-extra-version=VER], [add extra version field, for packagers/distributions]),
335 [EXTRAVERSION=$withval],)
336 AC_ARG_WITH(pkg-git-version,
337 AS_HELP_STRING([--with-pkg-git-version], [add git information to MOTD and build version string]),
338 [ test "x$withval" != "xno" && with_pkg_git_version="yes" ])
339 AC_ARG_WITH(vtysh_pager,
340 AS_HELP_STRING([--with-vtysh-pager=PAGER], [control what pager is compiled in as default]),
341 VTYSH_PAGER=$withval, VTYSH_PAGER="more")
343 AS_HELP_STRING([--disable-vtysh], [do not build integrated vty shell for FRR]))
345 AS_HELP_STRING([--disable-doc], [do not build docs]))
347 AS_HELP_STRING([--disable-zebra], [do not build zebra daemon]))
349 AS_HELP_STRING([--disable-bgpd], [do not build bgpd]))
351 AS_HELP_STRING([--disable-ripd], [do not build ripd]))
352 AC_ARG_ENABLE(ripngd,
353 AS_HELP_STRING([--disable-ripngd], [do not build ripngd]))
355 AS_HELP_STRING([--disable-ospfd], [do not build ospfd]))
356 AC_ARG_ENABLE(ospf6d,
357 AS_HELP_STRING([--disable-ospf6d], [do not build ospf6d]))
359 AS_HELP_STRING([--enable-ldpd], [build ldpd]))
361 AS_HELP_STRING([--disable-nhrpd], [do not build nhrpd]))
362 AC_ARG_ENABLE(eigrpd,
363 AS_HELP_STRING([--disable-eigrpd], [do not build eigrpd]))
364 AC_ARG_ENABLE(babeld,
365 AS_HELP_STRING([--disable-babeld], [do not build babeld]))
366 AC_ARG_ENABLE(watchfrr,
367 AS_HELP_STRING([--disable-watchfrr], [do not build watchfrr]))
369 AS_HELP_STRING([--disable-isisd], [do not build isisd]))
371 AS_HELP_STRING([--disable-pimd], [do not build pimd]))
373 AS_HELP_STRING([--disable-pbrd], [do not build pbrd]))
374 AC_ARG_ENABLE(sharpd,
375 AS_HELP_STRING([--enable-sharpd], [do not build sharpd]))
376 AC_ARG_ENABLE(bgp-announce,
377 AS_HELP_STRING([--disable-bgp-announce,], [turn off BGP route announcement]))
378 AC_ARG_ENABLE(bgp-vnc,
379 AS_HELP_STRING([--disable-bgp-vnc],[turn off BGP VNC support]))
380 AC_ARG_WITH(rfp-path,
381 AS_HELP_STRING([--with-rfp-path[=DIR]],[path to replaced stub RFP used with BGP VNC]))
383 AS_HELP_STRING([--enable-snmp=ARG], [enable SNMP support (smux or agentx)]))
384 AC_ARG_ENABLE(zeromq,
385 AS_HELP_STRING([--enable-zeromq], [enable ZeroMQ handler (libfrrzmq)]))
387 AS_HELP_STRING([--with-libpam], [use libpam for PAM support in vtysh]))
388 AC_ARG_ENABLE(ospfapi,
389 AS_HELP_STRING([--disable-ospfapi], [do not build OSPFAPI to access the OSPF LSA Database]))
390 AC_ARG_ENABLE(ospfclient,
391 AS_HELP_STRING([--disable-ospfclient], [do not build OSPFAPI client for OSPFAPI,
392 (this is the default if --disable-ospfapi is set)]))
393 AC_ARG_ENABLE(multipath,
394 AS_HELP_STRING([--enable-multipath=ARG], [enable multipath function, ARG must be digit]))
396 AS_HELP_STRING([--enable-user=USER], [user to run FRR suite as (default frr)]))
398 AS_HELP_STRING([--enable-group=GROUP], [group to run FRR suite as (default frr)]))
399 AC_ARG_ENABLE(vty_group,
400 AS_HELP_STRING([--enable-vty-group=ARG], [set vty sockets to have specified group as owner]))
401 AC_ARG_ENABLE(configfile_mask,
402 AS_HELP_STRING([--enable-configfile-mask=ARG], [set mask for config files]))
403 AC_ARG_ENABLE(logfile_mask,
404 AS_HELP_STRING([--enable-logfile-mask=ARG], [set mask for log files]))
405 AC_ARG_ENABLE(shell_access,
406 AS_HELP_STRING([--enable-shell-access], [Allow users to access shell/telnet/ssh]))
407 AC_ARG_ENABLE(realms,
408 AS_HELP_STRING([--enable-realms], [enable REALMS support under Linux]))
410 AS_HELP_STRING([--disable-rtadv], [disable IPV6 router advertisement feature]))
412 AS_HELP_STRING([--disable-irdp], [enable IRDP server support in zebra (default if supported)]))
413 AC_ARG_ENABLE(capabilities,
414 AS_HELP_STRING([--disable-capabilities], [disable using POSIX capabilities]))
415 AC_ARG_ENABLE(rusage,
416 AS_HELP_STRING([--disable-rusage], [disable using getrusage]))
417 AC_ARG_ENABLE(gcc_ultra_verbose,
418 AS_HELP_STRING([--enable-gcc-ultra-verbose], [enable ultra verbose GCC warnings]))
419 AC_ARG_ENABLE(linux24_tcp_md5,
420 AS_HELP_STRING([--enable-linux24-tcp-md5], [enable support for old, Linux-2.4 RFC2385 patch]))
421 AC_ARG_ENABLE(backtrace,
422 AS_HELP_STRING([--disable-backtrace,], [disable crash backtraces (default autodetect)]))
423 AC_ARG_ENABLE(time-check,
424 AS_HELP_STRING([--disable-time-check], [disable slow thread warning messages]))
425 AC_ARG_ENABLE(pcreposix,
426 AS_HELP_STRING([--enable-pcreposix], [enable using PCRE Posix libs for regex functions]))
428 AS_HELP_STRING([--enable-fpm], [enable Forwarding Plane Manager support]))
429 AC_ARG_ENABLE(systemd,
430 AS_HELP_STRING([--enable-systemd], [enable Systemd support]))
431 AC_ARG_ENABLE(werror,
432 AS_HELP_STRING([--enable-werror], [enable -Werror (recommended for developers only)]))
433 AC_ARG_ENABLE(cumulus,
434 AS_HELP_STRING([--enable-cumulus], [enable Cumulus Switch Special Extensions]))
435 AC_ARG_ENABLE(datacenter,
436 AS_HELP_STRING([--enable-datacenter], [enable Compilation for Data Center Extensions]))
437 AC_ARG_ENABLE(fuzzing,
438 AS_HELP_STRING([--enable-fuzzing], [enable ability to fuzz various parts of FRR]))
439 AC_ARG_ENABLE(netlink_fuzzing,
440 AS_HELP_STRING([--enable-netlink-fuzzing], [enable ability to fuzz netlink listening socket in zebra]))
441 AC_ARG_ENABLE(rr-semantics,
442 AS_HELP_STRING([--disable-rr-semantics], [disable the v6 Route Replace semantics]))
443 AC_ARG_ENABLE([protobuf],
444 AS_HELP_STRING([--enable-protobuf], [Enable experimental protobuf support]))
445 AC_ARG_ENABLE([oldvpn_commands],
446 AS_HELP_STRING([--enable-oldvpn-commands], [Keep old vpn commands]))
448 AS_HELP_STRING([--enable-rpki], [enable RPKI prefix validation support]))
449 AC_ARG_ENABLE([clippy-only],
450 AS_HELP_STRING([--enable-clippy-only], [Only build clippy]))
451 AC_ARG_ENABLE([numeric_version],
452 AS_HELP_STRING([--enable-numeric-version], [Only numeric digits allowed in version (for Alpine)]))
453 AC_ARG_ENABLE([gcov],
454 AS_HELP_STRING([--enable-gcov], [Add code coverage information]))
456 AS_IF([test "${enable_clippy_only}" != "yes"], [
457 AC_CHECK_HEADERS(json-c/json.h)
458 AC_CHECK_LIB(json-c, json_object_get, LIBS="$LIBS -ljson-c", [], [-lm])
459 if test $ac_cv_lib_json_c_json_object_get = no; then
460 AC_CHECK_LIB(json, json_object_get, LIBS="$LIBS -ljson")
461 if test $ac_cv_lib_json_json_object_get = no; then
462 AC_MSG_ERROR([lib json is needed to compile])
467 AC_ARG_ENABLE([dev_build],
468 AS_HELP_STRING([--enable-dev-build], [build for development]))
470 if test x"${enable_time_check}" != x"no" ; then
471 if test x"${enable_time_check}" = x"yes" -o x"${enable_time_check}" = x ; then
472 AC_DEFINE(CONSUMED_TIME_CHECK,5000000,Consumed Time Check)
474 AC_DEFINE_UNQUOTED(CONSUMED_TIME_CHECK,$enable_time_check,Consumed Time Check)
478 case "${enable_systemd}" in
481 AC_CHECK_LIB(systemd, sd_notify, LIBS="$LIBS -lsystemd")
482 if test $ac_cv_lib_systemd_sd_notify = no; then
483 AC_MSG_ERROR([enable systemd has been specified but systemd development env not found on your system])
485 AC_DEFINE(HAVE_SYSTEMD,,Compile systemd support in)
491 if test "${enable_rr_semantics}" != "no" ; then
492 AC_DEFINE(HAVE_V6_RR_SEMANTICS,, Compile in v6 Route Replacement Semantics)
495 if test "${enable_datacenter}" = "yes" ; then
496 AC_DEFINE(HAVE_DATACENTER,,Compile extensions for a DataCenter)
497 DFLT_NAME="datacenter"
499 DFLT_NAME="traditional"
502 if test "${enable_fuzzing}" = "yes" ; then
503 AC_DEFINE(HANDLE_ZAPI_FUZZING,,Compile extensions to use with a fuzzer)
506 if test "${enable_netlink_fuzzing}" = "yes" ; then
507 AC_DEFINE(HANDLE_NETLINK_FUZZING,,Compile extensions to use with a fuzzer for netlink)
510 if test "${enable_cumulus}" = "yes" ; then
511 AC_DEFINE(HAVE_CUMULUS,,Compile Special Cumulus Code in)
515 AC_DEFINE_UNQUOTED(DFLT_NAME,["$DFLT_NAME"], Name of the configuration default set)
517 if test "${enable_shell_access}" = "yes"; then
518 AC_DEFINE(HAVE_SHELL_ACCESS,,Allow user to use ssh/telnet/bash)
521 AM_CONDITIONAL([FPM], [test "x$enable_fpm" = "xyes"])
526 AS_IF([test "$host" = "$build"], [
530 # 1. try python3, but respect the user's preference on which minor ver
531 # 2. try python, which might be py3 or py2 again on the user's preference
532 # 3. try python2 (can really only be 2.7 but eh)
533 # 4. try 3.5 > 3.4 > 3.3 > 3.2 > 2.7 through pkg-config (no user pref)
535 # (AX_PYTHON_DEVEL has no clue about py3 vs py2)
536 # (AX_PYTHON does not do what we need)
538 AC_CHECK_TOOLS([PYTHONCONFIG], [python3-config python-config python2-config])
539 if test -n "$PYTHONCONFIG"; then
540 PYTHON_CFLAGS="`\"${PYTHONCONFIG}\" --includes`"
541 PYTHON_LIBS="`\"${PYTHONCONFIG}\" --libs`"
543 AC_MSG_CHECKING([whether we found a working Python version])
544 AC_LINK_IFELSE_FLAGS([$PYTHON_CFLAGS], [$PYTHON_LIBS], [AC_LANG_PROGRAM([
546 #if PY_VERSION_HEX < 0x02070000
547 #error python too old
563 if test -z "$PYTHONCONFIG"; then
564 PKG_CHECK_MODULES([PYTHON], python-3.5, [], [
565 PKG_CHECK_MODULES([PYTHON], python-3.4, [], [
566 PKG_CHECK_MODULES([PYTHON], python-3.3, [], [
567 PKG_CHECK_MODULES([PYTHON], python-3.2, [], [
568 PKG_CHECK_MODULES([PYTHON], python-2.7, [], [
569 AC_MSG_FAILURE([could not find python-config or pkg-config python, please install Python development files from libpython-dev or similar])
573 AC_MSG_CHECKING([whether we found a working Python version])
574 AC_LINK_IFELSE_FLAGS([$PYTHON_CFLAGS], [$PYTHON_LIBS], [AC_LANG_PROGRAM([
576 #if PY_VERSION_HEX < 0x02070000
577 #error python too old
587 AC_MSG_FAILURE([could not find python-config or pkg-config python, please install Python development files from libpython-dev or similar])
591 AC_SUBST(PYTHON_CFLAGS)
592 AC_SUBST(PYTHON_LIBS)
595 # Logic for protobuf support.
597 if test "$enable_protobuf" = "yes"; then
601 AC_CHECK_PROG([PROTOC_C], [protoc-c], [protoc-c], [/bin/false])
602 if test "x$PROTOC_C" = "x/bin/false"; then
606 PKG_CHECK_MODULES([PROTOBUF_C], libprotobuf-c >= 0.14,
607 [found_protobuf_c=yes],
608 [AC_MSG_RESULT([pkg-config did not find libprotobuf-c])])
610 if test "x$found_protobuf_c" = "xyes"; then
611 LDFLAGS="$LDFLAGS $PROTOBUF_C_LIBS"
612 CFLAGS="$CFLAGS $PROTOBUF_C_CFLAGS"
614 AC_CHECK_HEADER([google/protobuf-c/protobuf-c.h], [],
615 [have_protobuf=no; AC_MSG_RESULT([Couldn't find google/protobuf-c.h])])
621 # Logic for old vpn commans support.
623 if test "$enable_oldvpn_commands" = "yes"; then
624 AC_DEFINE(KEEP_OLD_VPN_COMMANDS,, [Define for compiling with old vpn commands])
627 # Fail if the user explicity enabled protobuf support and we couldn't
628 # find the compiler or libraries.
629 if test "x$have_protobuf" = "xno" && test "x$enable_protobuf" = "xyes"; then
630 AC_MSG_ERROR([Protobuf enabled explicitly but can't find libraries/tools])
633 if test "x$have_protobuf" = "xyes"; then
634 AC_DEFINE(HAVE_PROTOBUF,, protobuf)
637 AM_CONDITIONAL([HAVE_PROTOBUF], [test "x$have_protobuf" = "xyes"])
640 # End of logic for protobuf support.
643 if test "${enable_linux24_tcp_md5}" = "yes"; then
644 AC_DEFINE(HAVE_TCP_MD5_LINUX24,,Old Linux 2.4 TCP MD5 Signature Patch)
647 AC_MSG_CHECKING(if zebra should be configurable to send Route Advertisements)
648 if test "${enable_rtadv}" != "no"; then
650 AC_DEFINE(HAVE_RTADV,,Enable IPv6 Routing Advertisement support)
655 if test x"${enable_user}" = x"no"; then
658 if test x"${enable_user}" = x"yes" || test x"${enable_user}" = x""; then
661 AC_DEFINE_UNQUOTED(FRR_USER, "${enable_user}", frr User)
664 if test x"${enable_group}" = x"no"; then
667 if test x"${enable_group}" = x"yes" || test x"${enable_group}" = x""; then
670 AC_DEFINE_UNQUOTED(FRR_GROUP, "${enable_group}", frr Group)
673 if test x"${enable_vty_group}" = x"yes" ; then
674 AC_MSG_ERROR([--enable-vty-group requires a group as argument, not yes])
675 elif test x"${enable_vty_group}" != x""; then
676 if test x"${enable_vty_group}" != x"no"; then
677 AC_DEFINE_UNQUOTED(VTY_GROUP, "${enable_vty_group}", VTY Sockets Group)
680 AC_SUBST([enable_user])
681 AC_SUBST([enable_group])
682 AC_SUBST([enable_vty_group])
684 enable_configfile_mask=${enable_configfile_mask:-0600}
685 AC_DEFINE_UNQUOTED(CONFIGFILE_MASK, ${enable_configfile_mask}, Mask for config files)
687 enable_logfile_mask=${enable_logfile_mask:-0600}
688 AC_DEFINE_UNQUOTED(LOGFILE_MASK, ${enable_logfile_mask}, Mask for log files)
692 case "${enable_multipath}" in
696 [[1-9]|[1-9][0-9]|[1-9][0-9][0-9]])
697 MPATH_NUM="${enable_multipath}"
702 AC_MSG_FAILURE([Please specify digit to enable multipath ARG])
706 AC_DEFINE_UNQUOTED(MULTIPATH_NUM, $MPATH_NUM, Maximum number of paths for a route)
708 AC_DEFINE_UNQUOTED(VTYSH_PAGER, "$VTYSH_PAGER", [What pager to use])
710 dnl --------------------
711 dnl Enable code coverage
712 dnl --------------------
713 AM_CONDITIONAL([HAVE_GCOV],[test '!' "$enable_gcov" = no])
715 dnl ------------------------------------
716 dnl Alpine only accepts numeric versions
717 dnl ------------------------------------
718 if test "x${enable_numeric_version}" != "x" ; then
719 VERSION="`echo ${VERSION} | tr -c -d '[[.0-9]]'`"
720 PACKAGE_VERSION="`echo ${PACKAGE_VERSION} | tr -c -d '[[.0-9]]'`"
723 dnl -----------------------------------
724 dnl Add extra version string to package
725 dnl name, string and version fields.
726 dnl -----------------------------------
727 if test "x${EXTRAVERSION}" != "x" ; then
728 VERSION="${VERSION}${EXTRAVERSION}"
729 PACKAGE_VERSION="${PACKAGE_VERSION}${EXTRAVERSION}"
730 AC_SUBST(PACKAGE_EXTRAVERSION, ["${EXTRAVERSION}"])
731 PACKAGE_STRING="${PACKAGE_STRING}${EXTRAVERSION}"
734 if test "x$with_pkg_git_version" = "xyes"; then
735 if test -d "${srcdir}/.git"; then
736 AC_DEFINE(GIT_VERSION, [1], [include git version info])
737 else with_pkg_git_version="no"
738 AC_MSG_WARN([--with-pkg-git-version given, but this is not a git checkout])
741 AM_CONDITIONAL([GIT_VERSION], [test "x$with_pkg_git_version" = "xyes"])
743 dnl ------------------------------------
744 dnl Check C keywords and standard types
745 dnl ------------------------------------
756 dnl -------------------------
757 dnl Check other header files.
758 dnl -------------------------
759 AC_CHECK_HEADERS([stropts.h sys/ksym.h \
760 linux/version.h asm/types.h \
763 ac_stdatomic_ok=false
764 AC_DEFINE(FRR_AUTOCONF_ATOMIC, 1, [did autoconf checks for atomic funcs])
765 AC_CHECK_HEADER([stdatomic.h],[
767 AC_MSG_CHECKING([whether _Atomic qualifier works])
768 AC_LINK_IFELSE([AC_LANG_SOURCE([[
769 #include <stdatomic.h>
770 int main(int argc, char **argv) {
775 AC_DEFINE(HAVE_STDATOMIC_H, 1, [found stdatomic.h])
783 AS_IF([$ac_stdatomic_ok], [true], [
784 AC_MSG_CHECKING([for __atomic_* builtins])
785 AC_LINK_IFELSE([AC_LANG_SOURCE([[
786 int main(int argc, char **argv) {
788 __atomic_store_n (&i, 0, __ATOMIC_RELEASE);
789 return __atomic_load_n (&i, __ATOMIC_ACQUIRE);
792 AC_DEFINE(HAVE___ATOMIC, 1, [found __atomic builtins])
797 dnl FreeBSD 9 has a broken stdatomic.h where _Atomic doesn't work
798 AC_MSG_CHECKING([for __sync_* builtins])
799 AC_LINK_IFELSE([AC_LANG_SOURCE([[
800 int main(int argc, char **argv) {
802 __sync_fetch_and_sub (&i, 1);
803 return __sync_val_compare_and_swap (&i, 0, 1);
806 AC_DEFINE(HAVE___SYNC, 1, [found __sync builtins])
809 AC_MSG_CHECKING([for __sync_swap builtin])
810 AC_LINK_IFELSE([AC_LANG_SOURCE([[
811 int main(int argc, char **argv) {
813 return __sync_swap (&i, 2);
816 AC_DEFINE(HAVE___SYNC_SWAP, 1, [found __sync_swap builtin])
824 AC_MSG_FAILURE([stdatomic.h unavailable and $CC has neither __atomic nor __sync builtins])
829 dnl Utility macro to avoid retyping includes all the time
830 m4_define([FRR_INCLUDES],
833 #define __EXTENSIONS__
838 #include <sys/types.h>
839 /* sys/conf.h depends on param.h on FBSD at least */
840 #include <sys/param.h>
841 /* Required for MAXSIG */
843 #include <sys/socket.h>
845 # define __APPLE_USE_RFC_3542
847 #include <netinet/in.h>
848 #include <sys/time.h>
853 dnl Same applies for HAVE_NET_IF_VAR_H, which HAVE_NETINET6_ND6_H and
854 dnl HAVE_NETINET_IN_VAR_H depend upon. But if_var.h depends on if.h, hence
855 dnl an additional round for it.
857 AC_CHECK_HEADERS([net/if_var.h], [], [], FRR_INCLUDES)
859 m4_define([FRR_INCLUDES],
861 [#if HAVE_NET_IF_VAR_H
862 # include <net/if_var.h>
866 AC_CHECK_HEADERS([netinet/in_var.h \
867 net/if_dl.h net/netopt.h \
868 inet/nd.h netinet/ip_icmp.h \
869 sys/sysctl.h sys/sockio.h kvm.h sys/conf.h],
870 [], [], FRR_INCLUDES)
872 AC_CHECK_HEADERS([ucontext.h], [], [],
875 #endif /* __USE_GNU */
879 m4_define([UCONTEXT_INCLUDES],
880 [#include <ucontext.h>])dnl
882 AC_CHECK_MEMBERS([ucontext_t.uc_mcontext.uc_regs],
883 [], [], [UCONTEXT_INCLUDES])
884 AC_CHECK_MEMBERS([ucontext_t.uc_mcontext.regs],
885 [AC_CHECK_MEMBERS([ucontext_t.uc_mcontext.regs.nip],
886 [], [], [UCONTEXT_INCLUDES])],
887 [], [UCONTEXT_INCLUDES])
888 AC_CHECK_MEMBERS([ucontext_t.uc_mcontext.gregs],
889 [], [], [UCONTEXT_INCLUDES])
891 m4_define([FRR_INCLUDES],
895 #include <netinet/in_systm.h>
896 #if HAVE_NETINET_IN_VAR_H
897 # include <netinet/in_var.h>
900 # include <net/if_dl.h>
902 #if HAVE_NET_NETOPT_H
903 # include <net/netopt.h>
905 #include <net/route.h>
907 # include <inet/nd.h>
909 #include <arpa/inet.h>
910 /* Required for IDRP */
911 #if HAVE_NETINET_IP_ICMP_H
912 # include <netinet/ip_icmp.h>
916 dnl V6 headers are checked below, after we check for v6
918 AC_MSG_CHECKING([which operating system interface to use])
921 AC_MSG_RESULT([Solaris])
923 AC_DEFINE(SUNOS_5, 1, [SunOS 5])
924 AC_DEFINE(SOLARIS_IPV6, 1, Solaris IPv6)
926 AC_CHECK_LIB(socket, main)
927 AC_CHECK_LIB(nsl, main)
928 AC_CHECK_LIB(umem, main)
929 AC_CHECK_FUNCS([printstack], [
930 AC_DEFINE([HAVE_PRINTSTACK],1,[Solaris printstack])
931 AC_DEFINE([HAVE_STACK_TRACE],1,[Stack symbols decode functionality])
937 AC_MSG_RESULT([Linux])
939 AC_DEFINE(GNU_LINUX,,GNU Linux)
940 AC_DEFINE(HAVE_NETLINK,,netlink)
941 AC_DEFINE(LINUX_IPV6,1,Linux IPv6 stack)
943 dnl Linux has a compilation problem with mixing
944 dnl netinet/in.h and linux/in6.h they are not
945 dnl compatible. There has been discussion on
946 dnl how to fix it but no real progress on implementation
947 dnl when they fix it, remove this
948 AC_DEFINE(IPV6_MINHOPCOUNT, 73, Linux ipv6 Min Hop Count)
951 AC_MSG_RESULT([OpenBSD])
953 AC_DEFINE(OPEN_BSD,,OpenBSD)
954 AC_DEFINE(KAME,1,KAME IPv6)
955 AC_DEFINE(BSD_V6_SYSCTL,1,BSD v6 sysctl to turn on and off forwarding)
957 if test "x${enable_pimd}" != "xno"; then
962 AC_MSG_FAILURE([pimd cannot be enabled as PIM support has been removed from OpenBSD 6.1])
970 AC_DEFINE(HAVE_NET_RT_IFLIST,,NET_RT_IFLIST)
971 AC_DEFINE(KAME,1,KAME IPv6)
972 AC_DEFINE(BSD_V6_SYSCTL,1,BSD v6 sysctl to turn on and off forwarding)
975 AM_CONDITIONAL(SOLARIS, test "${SOLARIS}" = "solaris")
979 dnl ------------------------
980 dnl Integrated REALMS option
981 dnl ------------------------
982 if test "${enable_realms}" = "yes"; then
985 AC_DEFINE(SUPPORT_REALMS,, Realms support)
988 echo "Sorry, only Linux has REALMS support"
993 AM_CONDITIONAL([SUPPORT_REALMS], [test "${enable_realms}" = "yes"])
995 dnl ---------------------
996 dnl Integrated VTY option
997 dnl ---------------------
998 case "${enable_vtysh}" in
1001 AC_DEFINE(VTYSH,,VTY shell)
1002 dnl Vtysh uses libreadline, which looks for termcap functions at
1003 dnl configure time. We follow readlines search order.
1004 dnl The required procedures are in libtermcap on NetBSD, in
1005 dnl [TODO] on Linux, and in [TODO] on Solaris.
1006 AC_CHECK_LIB(termcap, tputs, LIBREADLINE="$LIBREADLINE -ltermcap",
1007 [AC_CHECK_LIB(tinfo, tputs, LIBREADLINE="$LIBREADLINE -ltinfo",
1008 [AC_CHECK_LIB(curses, tputs, LIBREADLINE="$LIBREADLINE -lcurses",
1009 [AC_CHECK_LIB(ncurses, tputs,
1010 LIBREADLINE="$LIBREADLINE -lncurses")]
1014 AC_CHECK_LIB(readline, main, LIBREADLINE="-lreadline $LIBREADLINE",,
1016 if test $ac_cv_lib_readline_main = no; then
1017 AC_MSG_ERROR([vtysh needs libreadline but was not found and usable on your system.])
1019 AC_CHECK_HEADER(readline/history.h)
1020 if test $ac_cv_header_readline_history_h = no;then
1021 AC_MSG_ERROR([readline is too old to have readline/history.h, please update to the latest readline library.])
1023 AC_CHECK_LIB(readline, rl_completion_matches,
1024 LIBREADLINE="$LIBREADLINE",, "$LIBREADLINE")
1025 if test $ac_cv_lib_readline_rl_completion_matches = no; then
1026 AC_DEFINE(rl_completion_matches,completion_matches,Old readline)
1030 AC_SUBST(LIBREADLINE)
1031 AM_CONDITIONAL(VTYSH, test "x$VTYSH" = "xvtysh")
1036 dnl FRR detects the PAM library it is built against by checking for a
1037 dnl functional pam_misc.h (Linux-PAM) or openpam.h (OpenPAM) header. pam_misc.h
1038 dnl is known to #include pam_appl.h, the standard header of a PAM library, and
1039 dnl openpam.h doesn't do that, although depends on the header too. Hence a
1040 dnl little assistance to AC_CHECK_HEADER is necessary for the proper detection
1043 if test "$with_libpam" = "yes"; then
1044 AC_CHECK_HEADER([security/pam_misc.h],
1045 [AC_DEFINE(HAVE_PAM_MISC_H,,Have pam_misc.h)
1046 AC_DEFINE(PAM_CONV_FUNC,misc_conv,Have misc_conv)
1047 pam_conv_func="misc_conv"
1050 AC_CHECK_HEADER([security/openpam.h],
1051 [AC_DEFINE(HAVE_OPENPAM_H,,Have openpam.h)
1052 AC_DEFINE(PAM_CONV_FUNC,openpam_ttyconv,Have openpam_ttyconv)
1053 pam_conv_func="openpam_ttyconv"
1055 [], FRR_INCLUDES[#include <security/pam_appl.h>])
1056 if test -z "$ac_cv_header_security_pam_misc_h$ac_cv_header_security_openpam_h" ; then
1057 AC_MSG_WARN([*** pam support will not be built ***])
1062 if test "$with_libpam" = "yes"; then
1063 dnl took this test from proftpds configure.in and suited to our needs
1064 dnl -------------------------------------------------------------------------
1066 dnl This next check looks funky due to a linker problem with some versions
1067 dnl of the PAM library. Prior to 0.72 release, the Linux PAM shared library
1068 dnl omitted requiring libdl linking information. PAM-0.72 or better ships
1069 dnl with RedHat 6.2 and Debian 2.2 or better.
1070 AC_CHECK_LIB(pam, pam_start,
1071 [AC_CHECK_LIB(pam, $pam_conv_func,
1072 [AC_DEFINE(USE_PAM,,Use PAM for authentication)
1074 [AC_DEFINE(USE_PAM,,Use PAM for authentication)
1075 LIBPAM="-lpam -lpam_misc"]
1079 [AC_CHECK_LIB(pam, pam_end,
1080 [AC_CHECK_LIB(pam, $pam_conv_func,
1081 [AC_DEFINE(USE_PAM,,Use PAM for authentication)
1082 LIBPAM="-lpam -ldl"],
1083 [AC_DEFINE(USE_PAM,,Use PAM for authentication)
1084 LIBPAM="-lpam -ldl -lpam_misc"]
1086 ],AC_MSG_WARN([*** pam support will not be built ***]),
1093 dnl -------------------------------
1094 dnl Endian-ness check
1095 dnl -------------------------------
1098 dnl -------------------------------
1099 dnl check the size in byte of the C
1100 dnl -------------------------------
1101 dnl AC_CHECK_SIZEOF(char)
1102 dnl AC_CHECK_SIZEOF(int)
1103 dnl AC_CHECK_SIZEOF(short)
1104 dnl AC_CHECK_SIZEOF(long)
1106 dnl ----------------------------
1107 dnl check existance of functions
1108 dnl ----------------------------
1114 dnl -------------------------------
1115 dnl bgpd needs pow() and hence libm
1116 dnl -------------------------------
1118 AC_CHECK_HEADER([math.h],
1119 [AC_CHECK_LIB([m], [pow],
1122 AC_CHECK_FUNCS(pow,[],[LIBM=""])
1125 if test x"$LIBM" = x ; then
1126 AC_MSG_WARN([Unable to find working pow function - bgpd may not link])
1131 AC_CHECK_FUNCS([ppoll], [
1132 AC_DEFINE([HAVE_PPOLL], 1, [have Linux/BSD ppoll()])
1134 AC_CHECK_FUNCS([pollts], [
1135 AC_DEFINE([HAVE_POLLTS], 1, [have NetBSD pollts()])
1145 AC_CHECK_HEADER([asm-generic/unistd.h],
1146 [AC_CHECK_DECL(__NR_setns,
1147 AC_DEFINE(HAVE_NETNS,, Have netns),,
1148 FRR_INCLUDES [#include <asm-generic/unistd.h>
1150 AC_CHECK_FUNCS(setns)]
1153 dnl --------------------------
1154 dnl Determine IS-IS I/O method
1155 dnl --------------------------
1156 AC_DEFINE(ISIS_METHOD_PFPACKET, 1, [ constant value for isis method pfpacket ])
1157 AC_DEFINE(ISIS_METHOD_DLPI, 2, [ constant value for isis method dlpi ])
1158 AC_DEFINE(ISIS_METHOD_BPF, 3, [ constant value for isis method bpf ])
1159 AC_CHECK_HEADER(net/bpf.h)
1160 AC_CHECK_HEADER(sys/dlpi.h)
1161 AC_MSG_CHECKING(zebra IS-IS I/O method)
1165 AC_MSG_RESULT(pfpacket)
1166 ISIS_METHOD_MACRO="ISIS_METHOD_PFPACKET"
1170 ISIS_METHOD_MACRO="ISIS_METHOD_DLPI"
1173 if test $ac_cv_header_net_bpf_h = no; then
1174 if test $ac_cv_header_sys_dlpi_h = no; then
1176 if test "${enable_isisd}" = yes; then
1177 AC_MSG_FAILURE([IS-IS support requested but no packet backend found])
1179 AC_MSG_WARN([*** IS-IS support will not be built ***])
1184 ISIS_METHOD_MACRO="ISIS_METHOD_DLPI"
1187 ISIS_METHOD_MACRO="ISIS_METHOD_BPF"
1191 AC_DEFINE_UNQUOTED(ISIS_METHOD, $ISIS_METHOD_MACRO, [ selected method for isis, == one of the constants ])
1193 dnl ------------------------------------
1194 dnl check for broken CMSG_FIRSTHDR macro
1195 dnl ------------------------------------
1196 AC_MSG_CHECKING(for broken CMSG_FIRSTHDR)
1197 AC_RUN_IFELSE([AC_LANG_SOURCE([[
1200 #define __EXTENSIONS__
1203 #include <sys/types.h>
1204 #include <sys/socket.h>
1211 msg.msg_control = buf;
1212 msg.msg_controllen = 0;
1214 if (CMSG_FIRSTHDR(&msg) != NULL)
1217 }]])],[AC_MSG_RESULT(yes - using workaround) AC_DEFINE(HAVE_BROKEN_CMSG_FIRSTHDR,,Broken CMSG_FIRSTHDR)],
1218 [AC_MSG_RESULT(no)],[AC_MSG_RESULT(no)])
1220 dnl ---------------------------------------------------------------
1221 dnl figure out how to specify an interface in multicast sockets API
1222 dnl ---------------------------------------------------------------
1223 AC_CHECK_MEMBERS([struct ip_mreqn.imr_ifindex], [], [], FRR_INCLUDES)
1225 AC_CHECK_HEADERS([linux/mroute.h], [], [],[
1226 #include <sys/socket.h>
1227 #include <netinet/in.h>
1228 #define _LINUX_IN_H /* For Linux <= 2.6.25 */
1229 #include <linux/types.h>
1232 m4_define([FRR_INCLUDES],
1234 [#if HAVE_LINUX_MROUTE_H
1235 # include <linux/mroute.h>
1239 AC_CHECK_HEADERS([netinet/ip_mroute.h], [], [],[
1240 #include <sys/socket.h>
1241 #include <sys/types.h>
1242 #include <netinet/in.h>
1243 #include <net/route.h>
1246 m4_define([FRR_INCLUDES],
1248 [#if HAVE_NETINET_IP_MROUTE_H
1249 # include <netinet/ip_mroute.h>
1253 AC_MSG_CHECKING([for BSD struct ip_mreq hack])
1254 AC_TRY_COMPILE([#include <sys/param.h>],
1255 [#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)
1258 #error No support for BSD struct ip_mreq hack detected
1259 #endif],[AC_MSG_RESULT(yes)
1260 AC_DEFINE(HAVE_BSD_STRUCT_IP_MREQ_HACK,,[Can pass ifindex in struct ip_mreq])],
1263 AC_MSG_CHECKING([for RFC3678 protocol-independed API])
1265 #include <sys/types.h>
1266 #include <netinet/in.h>
1267 ], [struct group_req gr; int sock; setsockopt(sock, IPPROTO_IP, MCAST_JOIN_GROUP, (void*)&gr, sizeof(gr));
1268 ], [AC_MSG_RESULT(yes)
1269 AC_DEFINE(HAVE_RFC3678,1,[Have RFC3678 protocol-independed API])],
1272 dnl ---------------------------------------------------------------
1273 dnl figure out how to check link-state
1274 dnl ---------------------------------------------------------------
1275 AC_CHECK_HEADER( [net/if_media.h],
1276 [m4_define([LINK_DETECT_INCLUDES],
1278 [#include <net/if_media.h>
1280 AC_CHECK_MEMBERS( [struct ifmediareq.ifm_status],
1281 AC_DEFINE(HAVE_BSD_LINK_DETECT,,[BSD link-detect]),
1282 [], LINK_DETECT_INCLUDES)],
1286 dnl ---------------------------------------------------------------
1287 dnl Additional, newer way to check link-state using ifi_link_state.
1288 dnl Not available in all BSD's when ifmediareq available
1289 dnl ---------------------------------------------------------------
1290 AC_CHECK_MEMBERS([struct if_data.ifi_link_state],
1291 AC_DEFINE(HAVE_BSD_IFI_LINK_STATE,,[BSD ifi_link_state available]),
1294 dnl ------------------------
1295 dnl TCP_MD5SIG socket option
1296 dnl ------------------------
1298 AC_CHECK_HEADER([netinet/tcp.h],
1299 [m4_define([MD5_INCLUDES],
1301 [#include <netinet/tcp.h>
1303 AC_CHECK_DECLS([TCP_MD5SIG], [], [], MD5_INCLUDES)],
1306 if test $ac_cv_have_decl_TCP_MD5SIG = no; then
1307 AC_CHECK_HEADER([linux/tcp.h],
1308 [m4_define([MD5_INCLUDES],
1310 [#include <linux/tcp.h>
1312 AC_CHECK_DECLS([TCP_MD5SIG], [], [], MD5_INCLUDES)])
1315 dnl ----------------------------------------------------------------------------
1316 dnl figure out if domainname is available in the utsname struct (GNU extension).
1317 dnl ----------------------------------------------------------------------------
1318 AC_CHECK_MEMBERS([struct utsname.domainname], [], [], [#include <sys/utsname.h>])
1320 dnl ------------------
1321 dnl IPv6 header checks
1322 dnl ------------------
1323 AC_CHECK_HEADERS([netinet6/in6.h netinet/in6_var.h \
1324 netinet6/in6_var.h netinet6/nd6.h], [], [],
1327 m4_define([FRR_INCLUDES],dnl
1329 [#if HAVE_NETINET6_IN6_H
1330 #include <netinet6/in6.h>
1332 #if HAVE_NETINET_IN6_VAR_H
1333 #include <netinet/in6_var.h>
1335 #include <netinet/icmp6.h>
1336 #if HAVE_NETINET6_IN6_VAR_H
1337 # include <netinet6/in6_var.h>
1339 #if HAVE_NETINET6_ND6_H
1340 # include <netinet6/nd6.h>
1344 dnl disable doc check
1345 if test "${enable_doc}" = "no";then
1351 dnl --------------------
1352 dnl Daemon disable check
1353 dnl --------------------
1354 AM_CONDITIONAL(ZEBRA, test "${enable_zebra}" != "no")
1356 if test "${enable_bgpd}" = "no";then
1361 AM_CONDITIONAL(BGPD, test "x$BGPD" = "xbgpd")
1363 AM_CONDITIONAL(RIPD, test "${enable_ripd}" != "no")
1364 AM_CONDITIONAL(OSPFD, test "${enable_ospfd}" != "no")
1365 AM_CONDITIONAL(LDPD, test "${enable_ldpd}" != "no")
1367 AS_IF([test "${enable_ldpd}" != "no"], [
1368 AC_DEFINE(HAVE_LDPD, 1, ldpd)
1374 if test "${enable_nhrpd}" != "no"; then
1379 if test "${enable_nhrpd}" = "yes"; then
1380 AC_MSG_ERROR([nhrpd requires kernel APIs that are only present on Linux.])
1384 AM_CONDITIONAL(NHRPD, test "x$NHRPD" = "xnhrpd")
1386 AM_CONDITIONAL(EIGRPD, test "${enable_eigrpd}" != "no")
1388 if test "${enable_watchfrr}" = "no";then
1393 AM_CONDITIONAL(WATCHFRR, test "x$WATCHFRR" = "xwatchfrr")
1396 if test "${enable_ospfapi}" != "no";then
1397 AC_DEFINE(SUPPORT_OSPF_API,,OSPFAPI)
1399 if test "${enable_ospfclient}" != "no";then
1400 OSPFCLIENT="ospfclient"
1404 AM_CONDITIONAL(OSPFCLIENT, test "x$OSPFCLIENT" = "xospfclient")
1405 AM_CONDITIONAL(RIPNGD, test "${enable_ripngd}" != "no")
1406 AM_CONDITIONAL(BABELD, test "${enable_babeld}" != "no")
1407 AM_CONDITIONAL(OSPF6D, test "${enable_ospf6d}" != "no")
1408 AM_CONDITIONAL(ISISD, test "${enable_isisd}" != "no")
1409 AM_CONDITIONAL(PIMD, test "${enable_pimd}" != "no")
1410 AM_CONDITIONAL(PBRD, test "${enable_pbrd}" != "no")
1411 AM_CONDITIONAL(SHARPD, test "${enable_sharpd}" = "yes")
1413 if test "${enable_bgp_announce}" = "no";then
1414 AC_DEFINE(DISABLE_BGP_ANNOUNCE,1,Disable BGP installation to zebra)
1416 AC_DEFINE(DISABLE_BGP_ANNOUNCE,0,Disable BGP installation to zebra)
1419 if test "${with_rfp_path}" = "yes" || test x"${with_rfp_path}" = x""; then
1420 with_rfp_path="bgpd/rfp-example"
1422 if test "${with_rfp_path}" != "no"; then
1423 VNC_RFP_PATH="${with_rfp_path}"
1424 AC_SUBST(VNC_RFP_PATH)
1427 if test "${enable_bgp_vnc}" != "no";then
1428 AC_DEFINE(ENABLE_BGP_VNC,1,Enable BGP VNC support)
1429 RFPTEST="${with_rfp_path}/rfptest"
1430 LIBRFP="${with_rfp_path}/librfp"
1431 RFPINC="${with_rfp_path}/librfp"
1435 RFPINC="bgpd/rfp-example/librfp"
1438 AM_CONDITIONAL([ENABLE_BGP_VNC], [test x${enable_bgp_vnc} != xno])
1448 AC_CHECK_LIB(crypt, crypt, [],
1449 [AC_CHECK_LIB(crypto, DES_crypt)])
1450 AC_CHECK_LIB(resolv, res_init)
1452 dnl ---------------------------
1453 dnl check system has PCRE regexp
1454 dnl ---------------------------
1455 if test "x$enable_pcreposix" = "xyes"; then
1456 AC_CHECK_LIB(pcreposix, regexec, [], [
1457 AC_MSG_ERROR([--enable-pcreposix given but unable to find libpcreposix])
1460 AC_SUBST(HAVE_LIBPCREPOSIX)
1462 dnl ------------------
1463 dnl check C-Ares library
1464 dnl ------------------
1465 if test "${NHRPD}" != ""; then
1466 PKG_CHECK_MODULES([CARES], [libcares], , [
1467 AC_MSG_ERROR([trying to build nhrpd, but libcares not found. install c-ares and its -dev headers.])
1472 dnl ------------------
1473 dnl check Net-SNMP library
1474 dnl ------------------
1475 if test "${enable_snmp}" != "" -a "${enable_snmp}" != "no"; then
1476 AC_PATH_TOOL([NETSNMP_CONFIG], [net-snmp-config], [no])
1477 if test x"$NETSNMP_CONFIG" = x"no"; then
1478 AC_MSG_ERROR([--enable-snmp given but unable to find net-snmp-config])
1480 SNMP_LIBS="`${NETSNMP_CONFIG} --agent-libs`"
1481 SNMP_CFLAGS="`${NETSNMP_CONFIG} --base-cflags`"
1482 AC_MSG_CHECKING([whether we can link to Net-SNMP])
1483 AC_LINK_IFELSE_FLAGS([$SNMP_CFLAGS], [$SNMP_LIBS], [AC_LANG_PROGRAM([
1491 AC_MSG_ERROR([--enable-snmp given but not usable])])
1492 case "${enable_snmp}" in
1497 SNMP_METHOD="${enable_snmp}"
1500 AC_MSG_ERROR([--enable-snmp given with an unknown method (${enable_snmp}). Use smux or agentx])
1503 AH_TEMPLATE([SNMP_SMUX], [Use SNMP SMUX to interface with snmpd])
1504 AH_TEMPLATE([SNMP_AGENTX], [Use SNMP AgentX to interface with snmpd])
1505 AC_DEFINE_UNQUOTED(AS_TR_CPP(SNMP_${SNMP_METHOD}),,SNMP method to interface with snmpd)
1507 AM_CONDITIONAL([SNMP], [test "x${SNMP_METHOD}" != "x"])
1509 AC_SUBST(SNMP_CFLAGS)
1514 AC_SEARCH_LIBS([sqrt], [m])
1519 AC_SEARCH_LIBS(dlopen, [dl dld], [], [
1520 AC_MSG_ERROR([unable to find the dlopen()])
1523 AC_CHECK_HEADERS([link.h])
1525 AC_MSG_CHECKING([for dlinfo(RTLD_DI_ORIGIN)])
1526 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
1534 dlinfo (NULL, RTLD_DI_ORIGIN, &origin);
1537 AC_DEFINE(HAVE_DLINFO_ORIGIN, 1, [Have dlinfo RTLD_DI_ORIGIN])
1542 AC_MSG_CHECKING([for dlinfo(RTLD_DI_LINKMAP)])
1543 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
1550 struct link_map *lm = NULL;
1551 dlinfo (NULL, RTLD_DI_LINKMAP, &lm);
1554 AC_DEFINE(HAVE_DLINFO_LINKMAP, 1, [Have dlinfo RTLD_DI_LINKMAP])
1560 AM_CONDITIONAL(SNMP, test "x$SNMP_METHOD" = "xagentx")
1562 dnl ---------------------------
1563 dnl sockaddr and netinet checks
1564 dnl ---------------------------
1567 struct vifctl, struct mfcctl, struct sioc_sg_req,
1568 vifi_t, struct sioc_vif_req, struct igmpmsg,
1569 struct ifaliasreq, struct if6_aliasreq, struct in6_aliasreq,
1570 struct nd_opt_adv_interval, struct rt_addrinfo,
1571 struct nd_opt_homeagent_info, struct nd_opt_adv_interval],
1572 [], [], FRR_INCLUDES)
1574 AC_CHECK_MEMBERS([struct sockaddr.sa_len,
1575 struct sockaddr_in.sin_len, struct sockaddr_un.sun_len,
1576 struct sockaddr_dl.sdl_len,
1577 struct if6_aliasreq.ifra_lifetime,
1578 struct nd_opt_adv_interval.nd_opt_ai_type],
1579 [], [], FRR_INCLUDES)
1581 dnl ---------------------------
1582 dnl IRDP/pktinfo/icmphdr checks
1583 dnl ---------------------------
1585 AC_CHECK_TYPES([struct in_pktinfo], [
1586 AC_CHECK_TYPES([struct icmphdr], [
1595 case "${enable_irdp}" in
1597 $IRDP || AC_MSG_ERROR(['IRDP requires in_pktinfo at the moment!'])
1604 AM_CONDITIONAL(IRDP, $IRDP)
1606 dnl -----------------------
1607 dnl checking for IP_PKTINFO
1608 dnl -----------------------
1609 AC_MSG_CHECKING(for IP_PKTINFO)
1610 AC_TRY_COMPILE([#include <netdb.h>], [
1611 int opt = IP_PKTINFO;
1614 AC_DEFINE(HAVE_IP_PKTINFO, 1, [Have IP_PKTINFO])
1619 dnl ---------------------------
1620 dnl checking for IP_RECVDSTADDR
1621 dnl ---------------------------
1622 AC_MSG_CHECKING(for IP_RECVDSTADDR)
1623 AC_TRY_COMPILE([#include <netinet/in.h>], [
1624 int opt = IP_RECVDSTADDR;
1627 AC_DEFINE(HAVE_IP_RECVDSTADDR, 1, [Have IP_RECVDSTADDR])
1632 dnl ----------------------
1633 dnl checking for IP_RECVIF
1634 dnl ----------------------
1635 AC_MSG_CHECKING(for IP_RECVIF)
1636 AC_TRY_COMPILE([#include <netinet/in.h>], [
1637 int opt = IP_RECVIF;
1640 AC_DEFINE(HAVE_IP_RECVIF, 1, [Have IP_RECVIF])
1645 dnl ----------------------
1646 dnl checking for SO_BINDANY
1647 dnl ----------------------
1648 AC_MSG_CHECKING(for SO_BINDANY)
1649 AC_TRY_COMPILE([#include <sys/socket.h>], [
1650 int opt = SO_BINDANY;
1653 AC_DEFINE(HAVE_SO_BINDANY, 1, [Have SO_BINDANY])
1658 dnl ----------------------
1659 dnl checking for IP_FREEBIND
1660 dnl ----------------------
1661 AC_MSG_CHECKING(for IP_FREEBIND)
1662 AC_TRY_COMPILE([#include <netinet/in.h>], [
1663 int opt = IP_FREEBIND;
1666 AC_DEFINE(HAVE_IP_FREEBIND, 1, [Have IP_FREEBIND])
1671 dnl --------------------------------------
1672 dnl checking for be32dec existence or not
1673 dnl --------------------------------------
1674 AC_CHECK_DECLS([be32enc, be32dec], [], [],
1675 [#include <sys/endian.h>])
1677 dnl --------------------------------------
1678 dnl checking for clock_time monotonic struct and call
1679 dnl --------------------------------------
1680 AC_CHECK_DECL(CLOCK_MONOTONIC,
1681 [AC_CHECK_LIB(rt, clock_gettime, [LIBS="$LIBS -lrt"])
1682 AC_DEFINE(HAVE_CLOCK_MONOTONIC,, Have monotonic clock)
1683 ], [AC_MSG_RESULT(no)], [FRR_INCLUDES])
1685 dnl --------------------------------------
1686 dnl checking for flex and bison
1687 dnl --------------------------------------
1690 AC_MSG_CHECKING(version of flex)
1691 frr_ac_flex_version="$(eval $LEX -V | grep flex | head -n 1)"
1692 frr_ac_flex_version="${frr_ac_flex_version##* }"
1693 AC_MSG_RESULT([$frr_ac_flex_version])
1694 AX_COMPARE_VERSION([$frr_ac_flex_version], [lt], [2.5.20], [
1695 LEX="$SHELL $missing_dir/missing flex"
1696 if test -f "${srcdir}/lib/command_lex.c" -a -f "${srcdir}/lib/command_lex.h"; then
1697 AC_MSG_WARN([using pregenerated flex output files])
1699 AC_MSG_ERROR([flex failure and pregenerated files not included (probably a git build)])
1701 AC_SUBST([LEX_OUTPUT_ROOT], [lex.yy])
1702 AC_SUBST([LEXLIB], [''])
1706 dnl thanks GNU bison for this b*llshit...
1707 AC_MSG_CHECKING(version of bison)
1708 frr_ac_bison_version="$(eval $YACC -V | grep bison | head -n 1)"
1709 frr_ac_bison_version="${frr_ac_bison_version##* }"
1710 frr_ac_bison_missing="false"
1711 case "x${frr_ac_bison_version}" in
1714 BISON_CLOSEBRACE='"'
1716 AC_MSG_RESULT([$frr_ac_bison_version - 2.7 or older])
1719 AC_MSG_RESULT([$frr_ac_bison_version])
1720 AC_MSG_WARN([installed bison is too old. Please install GNU bison 2.7.x or newer.])
1721 frr_ac_bison_missing="true"
1724 AC_MSG_RESULT([none])
1725 AC_MSG_WARN([could not determine bison version. Please install GNU bison 2.7.x or newer.])
1726 frr_ac_bison_missing="true"
1730 BISON_CLOSEBRACE='}'
1731 BISON_VERBOSE='-Dparse.error=verbose'
1732 AC_MSG_RESULT([$frr_ac_bison_version - 3.0 or newer])
1735 AC_SUBST(BISON_OPENBRACE)
1736 AC_SUBST(BISON_CLOSEBRACE)
1737 AC_SUBST(BISON_VERBOSE)
1739 if $frr_ac_bison_missing; then
1740 YACC="$SHELL $missing_dir/missing bison -y"
1741 if test -f "${srcdir}/lib/command_parse.c" -a -f "${srcdir}/lib/command_parse.h"; then
1742 AC_MSG_WARN([using pregenerated bison output files])
1744 AC_MSG_ERROR([bison failure and pregenerated files not included (probably a git build)])
1748 dnl -------------------
1749 dnl capabilities checks
1750 dnl -------------------
1751 if test "${enable_capabilities}" != "no"; then
1752 AC_MSG_CHECKING(whether prctl PR_SET_KEEPCAPS is available)
1753 AC_TRY_COMPILE([#include <sys/prctl.h>],[prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0);],
1755 AC_DEFINE(HAVE_PR_SET_KEEPCAPS,,prctl)
1756 frr_ac_keepcaps="yes"],
1759 if test x"${frr_ac_keepcaps}" = x"yes"; then
1760 AC_CHECK_HEADERS(sys/capability.h)
1762 if test x"${ac_cv_header_sys_capability_h}" = x"yes"; then
1763 AC_CHECK_LIB(cap, cap_init,
1764 [AC_DEFINE(HAVE_LCAPS,1,Capabilities)
1769 AC_CHECK_HEADERS(priv.h,
1770 [AC_MSG_CHECKING(Solaris style privileges are available)
1771 AC_TRY_COMPILE([#include <priv.h>],[getpflags(PRIV_AWARE);],
1773 AC_DEFINE(HAVE_SOLARIS_CAPABILITIES,1,getpflags)
1774 frr_ac_scaps="yes"],
1780 if test x"${frr_ac_scaps}" = x"yes" \
1781 -o x"${frr_ac_lcaps}" = x"yes"; then
1782 AC_DEFINE(HAVE_CAPABILITIES,1,capabilities)
1787 dnl ---------------------------
1788 dnl check for glibc 'backtrace'
1789 dnl ---------------------------
1790 if test x"${enable_backtrace}" != x"no" ; then
1792 AC_CHECK_HEADER([execinfo.h], [
1793 AC_SEARCH_LIBS([backtrace], [execinfo], [
1794 AC_DEFINE(HAVE_GLIBC_BACKTRACE,,[Glibc backtrace])
1795 AC_DEFINE(HAVE_STACK_TRACE,,[Stack symbol decoding])
1800 if test x"${enable_backtrace}" = x"yes" -a x"${backtrace_ok}" = x"no"; then
1801 dnl user explicitly requested backtrace but we failed to find support
1802 AC_MSG_FAILURE([failed to find backtrace support])
1806 dnl -----------------------------------------
1807 dnl check for malloc mallinfo struct and call
1808 dnl this must try and link using LIBS, in
1809 dnl order to check no alternative allocator
1810 dnl has been specified, which might not provide
1811 dnl mallinfo, e.g. such as Umem on Solaris.
1812 dnl -----------------------------------------
1813 AC_CHECK_HEADER([malloc.h],
1814 [AC_MSG_CHECKING(whether mallinfo is available)
1815 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <malloc.h>]],
1816 [[struct mallinfo ac_x; ac_x = mallinfo ();]])],
1818 AC_DEFINE(HAVE_MALLINFO,,mallinfo)],
1821 ], [], FRR_INCLUDES)
1826 if test "x$enable_zeromq" != "xno"; then
1827 PKG_CHECK_MODULES(ZEROMQ, [libzmq >= 4.0.0], [
1828 AC_DEFINE(HAVE_ZEROMQ, 1, [Enable ZeroMQ support])
1831 if test "x$enable_zeromq" = "xyes"; then
1832 AC_MSG_ERROR([configuration specifies --enable-zeromq but libzmq was not found])
1836 AM_CONDITIONAL([ZEROMQ], test "x$ZEROMQ" = "xtrue")
1841 dev_version=`echo $VERSION | grep dev`
1842 #don't expire deprecated code in non 'dev' branch
1843 if test "${dev_version}" = ""; then
1846 CONFDATE=`date '+%Y%m%d'`
1850 dnl ------------------------------
1851 dnl set paths for state directory
1852 dnl ------------------------------
1853 AC_MSG_CHECKING(directory to use for state file)
1854 if test "${prefix}" = "NONE"; then
1855 frr_statedir_prefix="";
1857 frr_statedir_prefix=${prefix}
1859 if test "${localstatedir}" = '${prefix}/var'; then
1860 for FRR_STATE_DIR in ${frr_statedir_prefix}/var/run dnl
1861 ${frr_statedir_prefix}/var/adm dnl
1862 ${frr_statedir_prefix}/etc dnl
1868 test -d $FRR_STATE_DIR && break
1870 frr_statedir=$FRR_STATE_DIR
1872 frr_statedir=${localstatedir}
1874 if test $frr_statedir = "/dev/null"; then
1875 AC_MSG_ERROR('STATE DIRECTORY NOT FOUND! FIX OR SPECIFY --localstatedir!')
1877 AC_MSG_RESULT(${frr_statedir})
1878 AC_SUBST(frr_statedir)
1880 AC_DEFINE_UNQUOTED(LDPD_SOCKET, "$frr_statedir/ldpd.sock",ldpd control socket)
1881 AC_DEFINE_UNQUOTED(ZEBRA_SERV_PATH, "$frr_statedir/zserv.api",zebra api socket)
1882 AC_DEFINE_UNQUOTED(DAEMON_VTY_DIR, "$frr_statedir",daemon vty directory)
1884 dnl autoconf does this, but it does it too late...
1885 test "x$prefix" = xNONE && prefix=$ac_default_prefix
1886 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
1888 dnl get the full path, recursing through variables...
1889 vtysh_bin="$bindir/vtysh"
1890 for I in 1 2 3 4 5 6 7 8 9 10; do
1891 eval vtysh_bin="\"$vtysh_bin\""
1893 AC_DEFINE_UNQUOTED(VTYSH_BIN_PATH, "$vtysh_bin",path to vtysh binary)
1895 CFG_SYSCONF="$sysconfdir"
1897 CFG_STATE="$frr_statedir"
1898 CFG_MODULE="$moduledir"
1899 for I in 1 2 3 4 5 6 7 8 9 10; do
1900 eval CFG_SYSCONF="\"$CFG_SYSCONF\""
1901 eval CFG_SBIN="\"$CFG_SBIN\""
1902 eval CFG_STATE="\"$CFG_STATE\""
1903 eval CFG_MODULE="\"$CFG_MODULE\""
1905 AC_SUBST(CFG_SYSCONF)
1908 AC_SUBST(CFG_MODULE)
1909 AC_DEFINE_UNQUOTED(MODULE_PATH, "$CFG_MODULE", path to modules)
1911 dnl ------------------------------------
1912 dnl Enable RPKI and add librtr to libs
1913 dnl ------------------------------------
1914 if test "${enable_rpki}" = "yes"; then
1915 PKG_CHECK_MODULES(RTRLIB,[rtrlib >= 0.5.0],
1916 [AC_DEFINE(HAVE_RPKI,1,Enable RPKI prefix validation for BGP)
1919 AC_MSG_ERROR([rtrlib was not found on your system or is too old.])]
1922 AM_CONDITIONAL([RPKI], test "x$RPKI" = "xtrue")
1924 dnl ------------------------------------------
1925 dnl Check whether rtrlib was build with ssh support
1926 dnl ------------------------------------------
1927 AC_MSG_CHECKING([whether the RTR Library is compiled with SSH])
1928 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "rtrlib/rtrlib.h"]],
1929 [[struct tr_ssh_config config;]])],
1931 AC_DEFINE(FOUND_SSH,,found_ssh)],
1935 dnl ---------------------------
1936 dnl Check htonl works correctly
1937 dnl ---------------------------
1938 AC_MSG_CHECKING(for working htonl)
1939 AC_CACHE_VAL(ac_cv_htonl_works,
1940 [AC_LINK_IFELSE([AC_LANG_PROGRAM([FRR_INCLUDES],[htonl (0);])],
1941 [ac_cv_htonl_works=yes], [ac_cv_htonl_works=no])
1944 AC_MSG_RESULT($ac_cv_htonl_works)
1946 AC_CONFIG_FILES([Makefile
1951 doc/manpages/Makefile
1952 doc/developer/Makefile
1954 bgpd/rfp-example/rfptest/Makefile
1955 bgpd/rfp-example/librfp/Makefile
1960 snapcraft/snapcraft.yaml
1962 tests/lib/cli/test_cli.refout
1963 pkgsrc/bgpd.sh pkgsrc/ospf6d.sh pkgsrc/ospfd.sh
1964 pkgsrc/ripd.sh pkgsrc/ripngd.sh pkgsrc/zebra.sh
1967 if test "${enable_bgp_vnc}" != "no"; then
1968 if test "${with_rfp_path}" != "bgpd/rfp-example" ; then
1969 AC_CONFIG_FILES([${with_rfp_path}/rfptest/Makefile ${with_rfp_path}/librfp/Makefile])
1973 AC_CONFIG_FILES([solaris/Makefile])
1975 AC_CONFIG_FILES([vtysh/extract.pl],[chmod +x vtysh/extract.pl])
1977 AC_CONFIG_COMMANDS([lib/route_types.h], [
1978 dst="${ac_abs_top_builddir}/lib/route_types.h"
1979 ${PERL} "${ac_abs_top_srcdir}/lib/route_types.pl" \
1980 < "${ac_abs_top_srcdir}/lib/route_types.txt" \
1983 && diff "${dst}.tmp" "${dst}" >/dev/null 2>/dev/null \
1984 && rm "${dst}.tmp" \
1985 || mv "${dst}.tmp" "${dst}"
1990 AS_IF([test "x$with_pkg_git_version" = "xyes"], [
1991 AC_CONFIG_COMMANDS([lib/gitversion.h], [
1992 dst="${ac_abs_top_builddir}/lib/gitversion.h"
1993 ${PERL} "${ac_abs_top_srcdir}/lib/gitversion.pl" \
1994 "${ac_abs_top_srcdir}" \
1997 && diff "${dst}.tmp" "${dst}" >/dev/null 2>/dev/null \
1998 && rm "${dst}.tmp" \
1999 || mv "${dst}.tmp" "${dst}"
2005 ## Hack, but working solution to avoid rebuilding of frr.info.
2006 ## It's already in CVS until texinfo 4.7 is more common.
2010 FRRouting configuration
2011 ------------------------------
2012 FRR version : ${PACKAGE_VERSION}
2013 host operating system : ${host_os}
2014 source code location : ${srcdir}
2016 compiler flags : ${CFLAGS}
2018 linker flags : ${LDFLAGS} ${LIBS} ${LIBCAP} ${LIBREADLINE} ${LIBM}
2019 state file directory : ${frr_statedir}
2020 config file directory : `eval echo \`echo ${sysconfdir}\``
2021 example directory : `eval echo \`echo ${exampledir}\``
2022 module directory : ${CFG_MODULE}
2023 user to run as : ${enable_user}
2024 group to run as : ${enable_group}
2025 group for vty sockets : ${enable_vty_group}
2026 config file mask : ${enable_configfile_mask}
2027 log file mask : ${enable_logfile_mask}
2028 zebra protobuf enabled : ${have_protobuf:-no}
2030 The above user and group must have read/write access to the state file
2031 directory and to the config files in the config file directory."