summaryrefslogtreecommitdiffstats
path: root/configure.ac
blob: 25bdd730574fb1ddedc5673f7ab7f076c9669580 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
##
## Configure template file for Quagga.
## autoconf will generate configure script.
##
##  Copyright (c) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
##  Portions Copyright (c) 2003 Paul Jakma <paul@dishone.st>
##
AC_PREREQ(2.53)

AC_INIT(lib/zebra.h)
AM_INIT_AUTOMAKE(quagga, 0.96)
AM_CONFIG_HEADER(config.h)

dnl -----------------------------------
dnl Get hostname and other information.
dnl -----------------------------------
AC_CANONICAL_HOST

dnl ------------
dnl Check CFLAGS
dnl ------------
AC_ARG_WITH(cflags,
[  --with-cflags           Set CFLAGS for use in compilation.])
if test "x$with_cflags" != "x" ; then
  CFLAGS="$with_cflags" ; cflags_specified=yes ;
elif test -n "$CFLAGS" ; then
  cflags_specified=yes ;
fi

dnl --------
dnl Check CC
dnl --------
AC_PROG_CC

dnl -----------------------------------------
dnl If CLFAGS doesn\'t exist set default value
dnl -----------------------------------------
if test "x$cflags_specified" = "x" ; then
  CFLAGS="$CFLAGS -Wall"
fi

dnl --------------
dnl Check programs
dnl --------------
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_CHECK_TOOL(AR, ar)
AC_CHECK_TOOL(RANLIB, ranlib, :)

dnl ---------
dnl AIX check
dnl ---------
AC_AIX

dnl ----------------------
dnl Packages configuration
dnl ----------------------
AC_ARG_ENABLE(vtysh,
[  --enable-vtysh,       Make integrated vty shell for Quagga])
AC_ARG_ENABLE(ipv6,
[  --disable-ipv6          turn off IPv6 related features and daemons])
AC_ARG_ENABLE(zebra,
[  --disable-zebra         do not build zebra daemon])
AC_ARG_ENABLE(bgpd,
[  --disable-bgpd          do not build bgpd])
AC_ARG_ENABLE(ripd,
[  --disable-ripd          do not build ripd])
AC_ARG_ENABLE(ripngd,
[  --disable-ripngd        do not build ripngd])
AC_ARG_ENABLE(ospfd,
[  --disable-ospfd         do not build ospfd])
AC_ARG_ENABLE(ospf6d,
[  --disable-ospf6d        do not build ospf6d])
AC_ARG_ENABLE(bgp-announce,
[  --disable-bgp-announce, turn off BGP route announcement])
AC_ARG_ENABLE(netlink,
[  --enable-netlink        force to use Linux netlink interface])
AC_ARG_ENABLE(broken-aliases,
[  --enable-broken-aliases enable aliases as distinct interfaces for Linux 2.2.X])
AC_ARG_ENABLE(snmp,
[  --enable-snmp           enable SNMP support])
AC_ARG_WITH(libpam,
[  --with-libpam           use libpam for PAM support in vtysh])
AC_ARG_ENABLE(tcp-zebra,
[  --enable-tcp-zebra      enable TCP/IP socket connection between zebra and protocol daemon])
dnl Temporary option until OSPF NSSA implementation complete
AC_ARG_ENABLE(nssa,
[  --enable-nssa           enable OSPF NSSA option])
AC_ARG_ENABLE(opaque-lsa,
[  --enable-opaque-lsa     enable OSPF Opaque-LSA with OSPFAPI support (RFC2370)])
AC_ARG_ENABLE(ospfapi,
[  --disable-ospfapi       do not build OSPFAPI to access the OSPF LSA Database, 
                          (this is the default if --enable-opaque-lsa is not set)])
AC_ARG_ENABLE(ospfclient,
[  --disable-ospfclient    do not build OSPFAPI client for OSPFAPI, 
                          (this is the default if --disable-ospfapi is set)])
AC_ARG_ENABLE(ospf-te,
[  --enable-ospf-te        enable Traffic Engineering Extension to OSPF])
AC_ARG_ENABLE(multipath,
[  --enable-multipath=ARG  enable multipath function, ARG must be digit])
AC_ARG_ENABLE(quagga_user,
[  --enable-user=ARG       user to run Quagga suite as (default quagga)])
AC_ARG_ENABLE(quagga_group,
[  --enable-group=ARG      group to run Quagga suite as (default quagga)])
AC_ARG_ENABLE(vty_group,
[  --enable-vty-group=ARG      set vty sockets to have specified group as owner])

AC_ARG_ENABLE(rtadv,
[  --enable-rtadv         enable IPV6 router advertisement feature])

if test "${enable_broken_aliases}" = "yes"; then
  if test "${enable_netlink}" = "yes"
  then
    echo "Sorry, you can't use netlink with broken aliases"
    exit 1
  fi
  AC_DEFINE(HAVE_BROKEN_ALIASES,,Broken Alias)
  enable_netlink=no
fi

if test "${enable_tcp_zebra}" = "yes"; then
  AC_DEFINE(HAVE_TCP_ZEBRA,,Use TCP for zebra communication)
fi

if test "${enable_nssa}" = "yes"; then
  AC_DEFINE(HAVE_NSSA,,OSPF NSSA)
fi

if test "${enable_opaque_lsa}" = "yes"; then
  AC_DEFINE(HAVE_OPAQUE_LSA,,OSPF Opaque LSA)
fi

if test "${enable_ospf_te}" = "yes"; then
  AC_DEFINE(HAVE_OPAQUE_LSA,,OSPF Opaque LSA)
  AC_DEFINE(HAVE_OSPF_TE,,OSPF TE)
fi

AC_MSG_CHECKING(Should zebra's RTADV be used)
if test "${enable_rtadv}" = "yes"; then
  AC_MSG_RESULT(yes)
  AC_DEFINE(HAVE_RTADV,,Enable zebra IPv6 Routing Advertisements)
else
  AC_MSG_RESULT(no)
fi

if test "${enable_user}" = "yes" || test x"${enable_user}" = x""; then
  enable_user="quagga"
elif test "${enable_user}" = "no"; then
  enable_user="root"
fi
AC_DEFINE_UNQUOTED(QUAGGA_USER, "${enable_user}", Quagga User)

if test "${enable_group}" = "yes" || test x"${enable_group}" = x""; then
  enable_group="quagga"
elif test "${enable_group}" = "no"; then
  enable_group="root"
fi
AC_DEFINE_UNQUOTED(QUAGGA_GROUP, "${enable_group}", Quagga Group)

if test x"${enable_vty_group}" = x"yes" ; then
  AC_MSG_ERROR([--enable-vty-group requires a group as argument, not yes])
elif test x"${enable_vty_group}" != x""; then
  if test x"${enable_vty_group}" != x"no"; then
    AC_DEFINE_UNQUOTED(VTY_GROUP, "${enable_vty_group}", VTY Sockets Group)
  fi
fi

changequote(, )dnl

MULTIPATH_NUM=1

case "${enable_multipath}" in
  [0-9]|[1-9][0-9])
    MULTIPATH_NUM="${enable_multipath}"
    ;;
  "")
    ;;
  *)           
    echo "Please specify digit to --enable-multipath ARG."
    exit 1
    ;;
esac

changequote([, ])dnl

AC_SUBST(MULTIPATH_NUM)

dnl -------------------
dnl Check header files.
dnl -------------------
AC_STDC_HEADERS
AC_CHECK_HEADERS(string.h stropts.h sys/conf.h sys/ksym.h sys/time.h sys/times.h sys/select.h sys/sysctl.h sys/sockio.h sys/types.h net/if_dl.h net/if_var.h linux/version.h kvm.h netdb.h netinet/in.h net/netopt.h netinet/in_var.h netinet/in6_var.h netinet6/in6_var.h netinet/in6.h inet/nd.h asm/types.h netinet/icmp6.h netinet6/nd6.h libutil.h)

dnl check some types
AC_C_CONST
dnl AC_TYPE_PID_T
AC_TYPE_SIGNAL

dnl Some systems (Solaris 2.x) require libnsl (Network Services Library)
case "$host" in
  *-sunos5.6* | *-solaris2.6*)
      opsys=sol2-6
      AC_DEFINE(SUNOS_5,,SunOS 5)
      AC_CHECK_LIB(xnet, main)
      CURSES=-lcurses
  ;;
  *-sunos5* | *-solaris2*)
      AC_DEFINE(SUNOS_5,,SunOS 5)
      AC_CHECK_LIB(socket, main)
      AC_CHECK_LIB(nsl, main)
      CURSES=-lcurses
  ;;
  *-linux-*)
      opsys=gnu-linux
      AC_DEFINE(GNU_LINUX,,GNU Linux)
  ;;
  *-nec-sysv4*)
      AC_CHECK_LIB(nsl, gethostbyname)
      AC_CHECK_LIB(socket, socket)
  ;;
  *-freebsd3.2)
      AC_DEFINE(FREEBSD_32,,FreeBSD 3.2)
  ;;
  *-openbsd*)
      opsys=openbsd
      AC_DEFINE(OPEN_BSD,,OpenBSD)
  ;;
  *-bsdi*)
      opsys=bsdi
      OTHER_METHOD="mtu_kvm.o"
      AC_CHECK_LIB(kvm, main)
  ;;
esac

dnl ---------------------
dnl Integrated VTY option
dnl ---------------------
case "${enable_vtysh}" in
  "yes") VTYSH="vtysh";
         AC_DEFINE(VTYSH,,VTY shell)
	 AC_CHECK_LIB(tinfo, tputs, , AC_CHECK_LIB(ncurses, tputs))
         AC_CHECK_LIB(readline, main)
         if test $ac_cv_lib_readline_main = no; then
           AC_MSG_ERROR([vtysh needs libreadline but was not found on your system.])
         fi
	 AC_CHECK_HEADER(readline/history.h)
	 if test $ac_cv_header_readline_history_h = no;then
           AC_MSG_ERROR([readline is too old to have readline/history.h, please update to the latest readline library.])
	 fi
	 AC_CHECK_LIB(readline, rl_completion_matches)
         if test $ac_cv_lib_readline_rl_completion_matches = no; then
           AC_DEFINE(rl_completion_matches,completion_matches,Old readline)
	 fi
	 ;;
  "no" ) VTYSH="";;
  *    ) ;;
esac

dnl ----------
dnl PAM module
dnl ----------
if test "$with_libpam" = "yes"; then
  AC_CHECK_HEADER(security/pam_misc.h)
  if test "$ac_cv_header_security_pam_misc_h" = yes; then
    AC_DEFINE(HAVE_PAM_MISC_H,,Have pam_misc.h)
    AC_DEFINE(PAM_CONV_FUNC,misc_conv,Have misc_conv)
    pam_conv_func="misc_conv"
  fi
  AC_CHECK_HEADER(security/openpam.h)
  if test "$ac_cv_header_security_openpam_h" = yes; then
    AC_DEFINE(HAVE_OPENPAM_H,,Have openpam.h)
    AC_DEFINE(PAM_CONV_FUNC,openpam_ttyconv,Have openpam_ttyconv)
    pam_conv_func="openpam_ttyconv"
  fi
  if test -z "$ac_cv_header_security_pam_misc_h$ac_cv_header_security_openpam_h" ; then
    AC_MSG_WARN([*** pam support will not be built ***])
    with_libpam="no"
  fi
fi

if test "$with_libpam" = "yes"; then
dnl took this test from proftpd's configure.in and suited to our needs
dnl -------------------------------------------------------------------------
dnl
dnl This next check looks funky due to a linker problem with some versions
dnl of the PAM library.  Prior to 0.72 release, the Linux PAM shared library
dnl omitted requiring libdl linking information. PAM-0.72 or better ships
dnl with RedHat 6.2 and Debian 2.2 or better.
AC_CHECK_LIB(pam, pam_start,
  [AC_CHECK_LIB(pam, $pam_conv_func,
    [AC_DEFINE(USE_PAM,,Use PAM for authentication)
     LIBPAM="-lpam"],
    [AC_DEFINE(USE_PAM,,Use PAM for authentication)
     LIBPAM="-lpam -lpam_misc"]
    )
  ],

  [AC_CHECK_LIB(pam, pam_end,
    [AC_CHECK_LIB(pam, $pam_conv_func,
      [AC_DEFINE(USE_PAM,,Use PAM for authentication)
       LIBPAM="-lpam -ldl"],
      [AC_DEFINE(USE_PAM,,Use PAM for authentication)
       LIBPAM="-lpam -ldl -lpam_misc"]
     )
  ],AC_MSG_WARN([*** pam support will not be built ***]),
  [-ldl])
  ]
)
fi
AC_SUBST(LIBPAM)

dnl -------------------------------
dnl Endian-ness check
dnl -------------------------------
AC_WORDS_BIGENDIAN

dnl -------------------------------
dnl check the size in byte of the C
dnl -------------------------------
dnl AC_CHECK_SIZEOF(char)
dnl AC_CHECK_SIZEOF(int)
dnl AC_CHECK_SIZEOF(short)
dnl AC_CHECK_SIZEOF(long)

dnl ----------------------------
dnl check existance of functions
dnl ----------------------------
AC_CHECK_FUNCS(bcopy bzero strerror inet_aton daemon snprintf vsnprintf strlcat strlcpy if_nametoindex if_indextoname getifaddrs)
AC_CHECK_FUNCS(setproctitle, ,
  [AC_CHECK_LIB(util, setproctitle, 
     [LIBS="$LIBS -lutil"
      AC_DEFINE(HAVE_SETPROCTITLE,, Have setproctitle)
     ]
   )
  ]
)

dnl ------------------------------------
dnl Determine routing get and set method
dnl ------------------------------------
AC_MSG_CHECKING(zebra between kernel interface method)
if test x"$opsys" = x"gnu-linux"; then
  if test "${enable_netlink}" = "yes";then
    AC_MSG_RESULT(netlink)
    RT_METHOD=rt_netlink.o
    AC_DEFINE(HAVE_NETLINK,,netlink)
    netlink=yes
  elif test "${enable_netlink}" = "no"; then
    AC_MSG_RESULT(ioctl)
    RT_METHOD=rt_ioctl.o
    netlink=no
  else
    AC_MSG_RESULT(netlink)
    RT_METHOD=rt_netlink.o
    AC_DEFINE(HAVE_NETLINK,,netlink)
    netlink=yes
  fi
else
  if test "$opsys" = "sol2-6";then
    AC_MSG_RESULT(solaris)
    KERNEL_METHOD="kernel_socket.o"
    RT_METHOD="rt_socket.o"
  else
    AC_TRY_RUN([#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>

main ()
{
  int ac_sock;

  ac_sock = socket (AF_ROUTE, SOCK_RAW, 0);
  if (ac_sock < 0 && errno == EINVAL)
    exit (1);
  exit (0);
}],
  [KERNEL_METHOD=kernel_socket.o
   RT_METHOD=rt_socket.o
   AC_MSG_RESULT(socket)],
  [RT_METHOD=rt_ioctl.o
   AC_MSG_RESULT(ioctl)],
  [KERNEL_METHOD=kernel_socket.o
   RT_METHOD=rt_socket.o
   AC_MSG_RESULT(socket)])
  fi
fi
AC_SUBST(RT_METHOD)
AC_SUBST(KERNEL_METHOD)
AC_SUBST(OTHER_METHOD)

dnl ------------------------------
dnl check kernel route read method
dnl ------------------------------
AC_CACHE_CHECK(route read method check, zebra_rtread,
[if test "$netlink" = yes; then
  RTREAD_METHOD="rtread_netlink.o"
  zebra_rtread="netlink"
else
for zebra_rtread in /proc/net/route /dev/ip /dev/null;
do
  test x`ls $zebra_rtread 2>/dev/null` = x"$zebra_rtread" && break
done
case $zebra_rtread in
  "/proc/net/route") RTREAD_METHOD="rtread_proc.o"
                     zebra_rtread="proc";;
  "/dev/ip")
                     case "$host" in
                       *-freebsd*)    RTREAD_METHOD=rtread_sysctl.o
                                      zebra_rtread="sysctl";;
                       *)             RTREAD_METHOD="rtread_getmsg.o"
                                      zebra_rtread="getmsg";;
                     esac;;
  *)                 RTREAD_METHOD="rtread_sysctl.o"
                     zebra_rtread="sysctl";;
esac
fi])
AC_SUBST(RTREAD_METHOD)

dnl -----------------------------
dnl check interface lookup method
dnl -----------------------------
AC_MSG_CHECKING(interface looking up method)
if test "$netlink" = yes; then
  AC_MSG_RESULT(netlink)
  IF_METHOD=if_netlink.o
else
  if test "$opsys" = "sol2-6";then
    AC_MSG_RESULT(solaris)
    IF_METHOD=if_ioctl.o
  elif test "$opsys" = "openbsd";then
    AC_MSG_RESULT(openbsd)
    IF_METHOD=if_ioctl.o
  elif grep NET_RT_IFLIST /usr/include/sys/socket.h >/dev/null 2>&1; then
    AC_MSG_RESULT(sysctl)
    IF_METHOD=if_sysctl.o
    AC_DEFINE(HAVE_NET_RT_IFLIST,,NET_RT_IFLIST)
  else
    AC_MSG_RESULT(ioctl)
    IF_METHOD=if_ioctl.o
  fi
fi
AC_SUBST(IF_METHOD)

dnl -----------------------
dnl check proc file system.
dnl -----------------------
if test -r /proc/net/dev; then
  AC_DEFINE(HAVE_PROC_NET_DEV,,/proc/net/dev)
  IF_PROC=if_proc.o
fi

if test -r /proc/net/if_inet6; then
  AC_DEFINE(HAVE_PROC_NET_IF_INET6,,/proc/net/if_inet6)
  IF_PROC=if_proc.o
fi
AC_SUBST(IF_PROC)

dnl -----------------------------
dnl check ipforward detect method
dnl -----------------------------
AC_CACHE_CHECK(ipforward method check, zebra_ipforward_path,
[for zebra_ipforward_path in /proc/net/snmp /dev/ip /dev/null;
do
  test x`ls $zebra_ipforward_path 2>/dev/null` = x"$zebra_ipforward_path" && break
done
case $zebra_ipforward_path in
  "/proc/net/snmp")  IPFORWARD=ipforward_proc.o
                     zebra_ipforward_path="proc";;
  "/dev/ip")         
                     case "$host" in
                       *-nec-sysv4*)  IPFORWARD=ipforward_ews.o
                                      zebra_ipforward_path="ews";;
                       *-freebsd*)    IPFORWARD=ipforward_sysctl.o
                                      zebra_ipforward_path="sysctl";;
                       *)             IPFORWARD=ipforward_solaris.o
                                      zebra_ipforward_path="solaris";;
                     esac;;
  *)                 IPFORWARD=ipforward_sysctl.o
                     zebra_ipforward_path="sysctl";;
esac])
AC_SUBST(IPFORWARD)

AC_CHECK_FUNCS(getaddrinfo, [have_getaddrinfo=yes], [have_getaddrinfo=no])

dnl ----------
dnl IPv6 check
dnl ----------
AC_MSG_CHECKING(whether does this OS have IPv6 stack)
if test "${enable_ipv6}" = "no"; then
  AC_MSG_RESULT(disabled)
else
dnl ----------
dnl INRIA IPv6
dnl ----------
  if grep IPV6_INRIA_VERSION /usr/include/netinet/in.h >/dev/null 2>&1; then
    zebra_cv_ipv6=yes
    AC_DEFINE(HAVE_IPV6,1,INRIA IPv6)
    AC_DEFINE(INRIA_IPV6,1,INRIA IPv6)
    RIPNGD="ripngd"
    OSPF6D="ospf6d"
    LIB_IPV6=""
    AC_MSG_RESULT(INRIA IPv6)
dnl ---------
dnl KAME IPv6
dnl ---------
  elif grep WIDE /usr/include/netinet6/in6.h >/dev/null 2>&1; then
    zebra_cv_ipv6=yes
    AC_DEFINE(HAVE_IPV6,1,KAME IPv6)
    AC_DEFINE(KAME,1,KAME IPv6)
    RIPNGD="ripngd"
    OSPF6D="ospf6d"
    if test -d /usr/local/v6/lib -a -f /usr/local/v6/lib/libinet6.a; then
      LIB_IPV6="-L/usr/local/v6/lib -linet6"
    fi
    AC_MSG_RESULT(KAME)
dnl -------------------------
dnl MUSICA IPv6
dnl  default host check
dnl  It is not used by Kheops
dnl -------------------------
  elif grep MUSICA /usr/include6/netinet6/in6.h >/dev/null 2>&1; then
    zebra_cv_ipv6=yes
    AC_DEFINE(HAVE_IPV6,1,Musicia IPv6)
    AC_DEFINE(MUSICA,1,Musica IPv6 stack)
    AC_DEFINE(KAME,1,KAME IPv6 stack)
    RIPNGD="ripngd"
    OSPF6D="ospf6d"
    if test -d /usr/local/v6/lib -a -f /usr/local/v6/lib/libinet6.a; then
      LIB_IPV6="-L/usr/local/v6/lib -linet6"
    fi
    AC_MSG_RESULT(MUSICA)
dnl ---------
dnl NRL check
dnl ---------
  elif grep NRL /usr/include/netinet6/in6.h >/dev/null 2>&1; then
    zebra_cv_ipv6=yes
    AC_DEFINE(HAVE_IPV6,1,NRL IPv6)
    AC_DEFINE(NRL,1,NRL)
    RIPNGD="ripngd"
    OSPF6D="ospf6d"
    if test x"$opsys" = x"bsdi";then
      AC_DEFINE(BSDI_NRL,,BSDI)
      AC_MSG_RESULT(BSDI_NRL)
    else
      AC_MSG_RESULT(NRL)
    fi
dnl ----------
dnl Linux IPv6
dnl ----------
  elif test "${enable_ipv6}" = "yes"; then
    AC_EGREP_CPP(yes, [
      #include <linux/version.h>
      /* 2.1.128 or later */
      #if LINUX_VERSION_CODE >= 0x020180
      yes
      #endif],
      [zebra_cv_ipv6=yes
       zebra_cv_linux_ipv6=yes
       AC_MSG_RESULT(Linux IPv6)])
  else
    if test x`ls /proc/net/ipv6_route 2>/dev/null` = x"/proc/net/ipv6_route"
     then
      zebra_cv_ipv6=yes
      zebra_cv_linux_ipv6=yes
      AC_MSG_RESULT(Linux IPv6)
    fi
  fi

  if test "$zebra_cv_linux_ipv6" = "yes";then
    AC_MSG_CHECKING(for GNU libc >= 2.1)
    AC_DEFINE(HAVE_IPV6,1,Linux IPv6)
    AC_EGREP_CPP(yes, [
#include <features.h>
#if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1
  yes
#endif], 
      [glibc=yes
       AC_DEFINE(LINUX_IPV6,1,Linux IPv6 stack)
       AC_MSG_RESULT(yes)], 
      AC_MSG_RESULT(no)
    )
    RIPNGD="ripngd"
    OSPF6D="ospf6d"
    if test "$glibc" != "yes"; then
      INCLUDES="-I/usr/inet6/include"
      if test x`ls /usr/inet6/lib/libinet6.a 2>/dev/null` != x;then
         LIB_IPV6="-L/usr/inet6/lib -linet6"
      fi
    fi
  fi

dnl -----------------------
dnl Set IPv6 related values
dnl -----------------------
  LIBS="$LIB_IPV6 $LIBS"
  AC_SUBST(LIB_IPV6)

  if test x"$RIPNGD" = x""; then
    AC_MSG_RESULT(IPv4 only)
  fi
fi

dnl --------------------
dnl Daemon disable check
dnl --------------------
if test "${enable_zebra}" = "no";then
  ZEBRA=""
else
  ZEBRA="zebra"
fi

if test "${enable_bgpd}" = "no";then
  BGPD=""
else
  BGPD="bgpd"
fi

if test "${enable_ripd}" = "no";then
  RIPD=""
else
  RIPD="ripd"
fi

if test "${enable_ospfd}" = "no";then
  OSPFD=""
else
  OSPFD="ospfd"
fi

OSPFCLIENT=""
if test "${enable_opaque_lsa}" = "yes"; then
  if test "${enable_ospfapi}" != "no";then
    AC_DEFINE(SUPPORT_OSPF_API,,OSPFAPI)

    if test "${enable_ospfclient}" != "no";then
      OSPFCLIENT="ospfclient"
    fi
  fi

fi

case "${enable_ripngd}" in
  "yes") RIPNGD="ripngd";;
  "no" ) RIPNGD="";;
  *    ) ;;
esac

case "${enable_ospf6d}" in
  "yes") OSPF6D="ospf6d";;
  "no" ) OSPF6D="";;
  *    ) ;;
esac

if test "${enable_bgp_announce}" = "no";then
  AC_DEFINE(DISABLE_BGP_ANNOUNCE,,Disable BGP installation to zebra)
fi

AC_SUBST(ZEBRA)
AC_SUBST(BGPD)
AC_SUBST(RIPD)
AC_SUBST(RIPNGD)
AC_SUBST(OSPFD)
AC_SUBST(OSPF6D)
AC_SUBST(VTYSH)
AC_SUBST(INCLUDES)
AC_SUBST(CURSES)
AC_SUBST(OSPFCLIENT)
AC_SUBST(OSPFAPI)
AC_CHECK_LIB(c, inet_ntop, [AC_DEFINE(HAVE_INET_NTOP,,inet_ntop)])
AC_CHECK_LIB(c, inet_pton, [AC_DEFINE(HAVE_INET_PTON,,inet_pton)])
AC_CHECK_LIB(crypt, crypt)
AC_CHECK_LIB(resolv, res_init)
AC_CHECK_LIB(m, main)

dnl ---------------------------------------------------
dnl BSD/OS 4.1 define inet_XtoY function as __inet_XtoY
dnl ---------------------------------------------------
AC_CHECK_FUNC(__inet_ntop, AC_DEFINE(HAVE_INET_NTOP,,__inet_ntop))
AC_CHECK_FUNC(__inet_pton, AC_DEFINE(HAVE_INET_PTON,,__inet_pton))
AC_CHECK_FUNC(__inet_aton, AC_DEFINE(HAVE_INET_ATON,,__inet_aton))

dnl ---------------------------
dnl check system has GNU regexp
dnl ---------------------------
dnl AC_MSG_CHECKING(whether system has GNU regex)
AC_CHECK_LIB(c, regexec,
[AC_DEFINE(HAVE_GNU_REGEX,,GNU regexp library)
 LIB_REGEX=""],
[LIB_REGEX="regex.o"])
AC_SUBST(LIB_REGEX)

dnl ------------------
dnl check SNMP library
dnl ------------------
if test "${enable_snmp}" = "yes";then
dnl  AC_CHECK_LIB(snmp, asn_parse_int, HAVE_SNMP=yes)
  if test "${HAVE_SNMP}" = ""; then
    old_libs="${LIBS}"
    LIBS="-L/usr/lib"
    unset ac_cv_lib_snmp_asn_parse_int
    AC_CHECK_LIB(crypto, main, NEED_CRYPTO=yes, )
    if test "${NEED_CRYPTO}" = ""; then
      AC_CHECK_LIB(netsnmp, asn_parse_int, [HAVE_NETSNMP=yes; HAVE_SNMP=yes ])
    else
      AC_CHECK_LIB(netsnmp, asn_parse_int, [HAVE_NETSNMP=yes; HAVE_SNMP=yes; NEED_CRYPTO=yes;LIBS="$LIBS -lcrypto" ],,"-lcrypto")
    fi
    LIBS="${old_libs}"
  fi
  if test "${HAVE_SNMP}" = ""; then
    old_libs="${LIBS}"
    LIBS="-L/usr/lib"
    unset ac_cv_lib_snmp_asn_parse_int
    AC_CHECK_LIB(snmp, asn_parse_int, HAVE_SNMP=yes, )
    if test "${HAVE_SNMP}" = ""; then
      unset ac_cv_lib_snmp_asn_parse_int
      AC_CHECK_LIB(crypto, main, NEED_CRYPTO=yes, )
      if test "${NEED_CRYPTO}" = "yes"; then 
        AC_CHECK_LIB(snmp, asn_parse_int, [HAVE_SNMP=yes; NEED_CRYPTO=yes; LIBS="$LIBS -lcrypto" ],,"-lcrypto")
      fi
    fi
    LIBS="${old_libs}"
  fi

  if test "${HAVE_SNMP}" = ""; then
    old_libs="${LIBS}"
    LIBS="-L/usr/local/lib"
    unset ac_cv_lib_snmp_asn_parse_int
    AC_CHECK_LIB(snmp, asn_parse_int, HAVE_SNMP=yes)
    if test "${HAVE_SNMP}" = ""; then
      unset ac_cv_lib_snmp_asn_parse_int
      AC_CHECK_LIB(crypto, main, NEED_CRYPTO=yes, )
      if test "${NEED_CRYPTO}" = "yes"; then
        AC_CHECK_LIB(snmp, asn_parse_int, [HAVE_SNMP=yes; NEED_CRYPTO=yes; LIBS="$LIBS -lcrypto" ],,"-lcrypto")
      fi
    fi
    LIBS="${old_libs}"
  fi

  if test "${HAVE_SNMP}" = "yes"; then
    for ac_snmp in /usr/include/net-snmp/library/asn1.h /usr/include/ucd-snmp/asn1.h /usr/local/include/ucd-snmp/asn1.h /dev/null
    do
      test -f "${ac_snmp}" && break
    done

    case ${ac_snmp} in
      /usr/include/net-snmp/*)
                  AC_DEFINE(HAVE_SNMP,,SNMP)
		  AC_DEFINE(HAVE_NETSNMP,,SNMP)
                  AC_DEFINE(UCD_COMPATIBLE,,SNMP)
                  CFLAGS="${CFLAGS} -I/usr/include/net-snmp -I/usr/include/net-snmp/library"
		  if test "${HAVE_NETSNMP}" = "yes"; then
		        LIBS="${LIBS} -lnetsnmp"
		  else
			LIBS="${LIBS} -lsnmp"
		  fi
                  ;;
      /usr/include/ucd-snmp/*) 
                  AC_DEFINE(HAVE_SNMP,,SNMP)
                  CFLAGS="${CFLAGS} -I/usr/include/ucd-snmp"
    		  LIBS="${LIBS} -lsnmp"
                  ;;
      /usr/local/include/ucd-snmp/*) 
                  AC_DEFINE(HAVE_SNMP,,SNMP)
  	          CFLAGS="${CFLAGS} -I/usr/local/include/ucd-snmp"
  		  LIBS="${LIBS} -L/usr/local/lib -lsnmp"
                  ;;
    esac
    if test "${NEED_CRYPTO}" = "yes"; then
      LIBS="${LIBS} -lcrypto"
    fi
  fi
fi

dnl ----------------------------
dnl check sa_len of sockaddr
dnl ----------------------------
AC_MSG_CHECKING(whether struct sockaddr has a sa_len field)
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/socket.h>
],[static struct sockaddr ac_i;int ac_j = sizeof (ac_i.sa_len);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SA_LEN,,sa_len)],
 AC_MSG_RESULT(no))

dnl ----------------------------
dnl check sin_len of sockaddr_in
dnl ----------------------------
AC_MSG_CHECKING(whether struct sockaddr_in has a sin_len field)
AC_TRY_COMPILE([#include <sys/types.h>
#include <netinet/in.h>
],[static struct sockaddr_in ac_i;int ac_j = sizeof (ac_i.sin_len);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SIN_LEN,,sin_len)],
 AC_MSG_RESULT(no))

dnl ----------------------------
dnl check sun_len of sockaddr_un
dnl ----------------------------
AC_MSG_CHECKING(whether struct sockaddr_un has a sun_len field)
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/un.h>
],[static struct sockaddr_un ac_i;int ac_j = sizeof (ac_i.sun_len);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SUN_LEN,,sun_len)],
 AC_MSG_RESULT(no))

dnl -----------------------------------
dnl check sin6_scope_id of sockaddr_in6
dnl -----------------------------------
if test "$zebra_cv_ipv6" = yes; then
  AC_MSG_CHECKING(whether struct sockaddr_in6 has a sin6_scope_id field)
  AC_TRY_COMPILE([#include <sys/types.h>
#include <netinet/in.h>
],[static struct sockaddr_in6 ac_i;int ac_j = sizeof (ac_i.sin6_scope_id);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SIN6_SCOPE_ID,,scope id)],
 AC_MSG_RESULT(no))
fi

dnl ----------------------------
dnl check socklen_t exist or not
dnl ----------------------------
AC_MSG_CHECKING(whther socklen_t is defined)
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
],[socklen_t ac_x;],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SOCKLEN_T,,socklen_t)],
 AC_MSG_RESULT(no))

dnl ------------------------
dnl check struct sockaddr_dl
dnl ------------------------
AC_MSG_CHECKING(whether struct sockaddr_dl exist)
AC_EGREP_HEADER(sockaddr_dl,
net/if_dl.h,
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_SOCKADDR_DL,,sockaddr_dl)],
 AC_MSG_RESULT(no))

dnl --------------------------
dnl check structure ifaliasreq
dnl --------------------------
AC_MSG_CHECKING(whether struct ifaliasreq exist)
AC_EGREP_HEADER(ifaliasreq,
net/if.h,
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_IFALIASREQ,,ifaliasreq)],
 AC_MSG_RESULT(no))

dnl ----------------------------
dnl check structure in6_aliasreq
dnl ----------------------------
AC_MSG_CHECKING(whether struct in6_aliasreq exist)
AC_EGREP_HEADER(in6_aliasreq,
netinet6/in6_var.h,
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_IN6_ALIASREQ,,in6_aliasreq)],
 AC_MSG_RESULT(no))

dnl -----------------------------------
dnl check ifra_lifetime of in6_aliasreq
dnl -----------------------------------
AC_MSG_CHECKING(whether in6_aliasreq.ifra_lifetime exist)
AC_TRY_COMPILE([#include <sys/types.h>
#include <netinet6/in6_var.h>
],[static struct if6_aliasreq ac_i;int ac_j = sizeof (ac_i.ifra_lifetime);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_IFRA_LIFETIME,,Have in6_aliasreq.ifra_lifetime)],
 AC_MSG_RESULT(no))

dnl ---------------------------
dnl check structure rt_addrinfo
dnl ---------------------------
AC_MSG_CHECKING(whether struct rt_addrinfo exist)
AC_EGREP_HEADER(rt_addrinfo,
net/route.h,
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_RT_ADDRINFO,,rt_addrinfo)],
 AC_MSG_RESULT(no))

dnl --------------------------
dnl check structure in_pktinfo
dnl --------------------------
AC_MSG_CHECKING(whether struct in_pktinfo exist)
AC_TRY_COMPILE([#include <netinet/in.h>
],[struct in_pktinfo ac_x;],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_INPKTINFO,,in_pktinfo)],
 AC_MSG_RESULT(no))

dnl --------------------------------------
dnl checking for getrusage struct and call
dnl --------------------------------------
AC_MSG_CHECKING(whether getrusage is available)
AC_TRY_COMPILE([#include <sys/resource.h>
],[struct rusage ac_x; getrusage (RUSAGE_SELF, &ac_x);],
[AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_RUSAGE,,rusage)],
 AC_MSG_RESULT(no))

dnl -------------------
dnl capabilities checks
dnl -------------------
AC_MSG_CHECKING(whether prctl PR_SET_KEEPCAPS is available)
AC_TRY_COMPILE([#include <sys/prctl.h>],[prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0);],
  [AC_MSG_RESULT(yes)
   AC_DEFINE(HAVE_PR_SET_KEEPCAPS,,prctl)
   quagga_ac_keepcaps="yes"],
   AC_MSG_RESULT(no)
)
if test x"${quagga_ac_keepcaps}" = x"yes"; then
  AC_CHECK_HEADERS(sys/capability.h)
fi
if test x"${ac_cv_header_sys_capability_h}" = x"yes"; then
  AC_CHECK_LIB(cap, cap_init, 
    [AC_DEFINE(HAVE_LCAPS,1,Capabilities)
     LIBCAP="-lcap"
    ]
  )
fi
AC_SUBST(LIBCAP)

dnl ---------------------------
dnl check for glibc 'backtrace'
dnl --------------------------- 
if test "${glibc}" = "yes"; then
   AC_CHECK_HEADER(execinfo.h)
fi
if test x"${ac_cv_header_execinfo_h}" = x"yes"; then
  AC_CHECK_FUNC(backtrace,
    [AC_DEFINE(HAVE_GLIBC_BACKTRACE,,Glibc backtrace)]
  )
fi

dnl -------------
dnl check version
dnl -------------
file="${srcdir}/lib/version.h"
VERSION=`sed -ne 's/^#.*QUAGGA_VERSION.*\"\([^\"]*\)\"$/\1/p' $file`
AC_SUBST(VERSION)

dnl ----------
dnl configure date
dnl ----------
CONFDATE=`date '+%Y%m%d'`
AC_SUBST(CONFDATE)

dnl ------------------------------
dnl set paths for state directory
dnl ------------------------------
if test "${prefix}" = "NONE"; then
  quagga_statedir_prefix="";
else
  quagga_statedir_prefix=${prefix}
fi
if test "${localstatedir}" = '${prefix}/var'; then
  AC_CACHE_CHECK(state directory,ac_statedir,
  [for QUAGGA_STATE_DIR in ${quagga_statedir_prefix}/var/run dnl
			${quagga_statedir_prefix}/var/adm dnl
			${quagga_statedir_prefix}/etc dnl
			/var/run	dnl
                        /var/adm	dnl
                        /etc		dnl
                        /dev/null;
  do
    test -d $QUAGGA_STATE_DIR && break
  done
  quagga_statedir=$QUAGGA_STATE_DIR])
else
  quagga_statedir=${localstatedir}
  AC_MSG_CHECKING(directory to use for state file)
  AC_MSG_RESULT(${quagga_statedir})
fi
if test $quagga_statedir = "/dev/null"; then
    AC_MSG_ERROR('STATE DIRECTORY NOT FOUND! FIX OR SPECIFY --localstatedir!')
fi

AC_DEFINE_UNQUOTED(PATH_ZEBRA_PID, "$quagga_statedir/zebra.pid",zebra PID)
AC_DEFINE_UNQUOTED(PATH_RIPD_PID, "$quagga_statedir/ripd.pid",ripd PID)
AC_DEFINE_UNQUOTED(PATH_RIPNGD_PID, "$quagga_statedir/ripngd.pid",ripngd PID)
AC_DEFINE_UNQUOTED(PATH_BGPD_PID, "$quagga_statedir/bgpd.pid",bgpd PID)
AC_DEFINE_UNQUOTED(PATH_OSPFD_PID, "$quagga_statedir/ospfd.pid",ospfd PID)
AC_DEFINE_UNQUOTED(PATH_OSPF6D_PID, "$quagga_statedir/ospf6d.pid",ospf6d PID)
AC_DEFINE_UNQUOTED(ZEBRA_SERV_PATH, "$quagga_statedir/zserv.api",zebra api socket)
AC_DEFINE_UNQUOTED(ZEBRA_VTYSH_PATH, "$quagga_statedir/zebra.vty",zebra vty socket)
AC_DEFINE_UNQUOTED(RIP_VTYSH_PATH, "$quagga_statedir/ripd.vty",rip vty socket)
AC_DEFINE_UNQUOTED(RIPNG_VTYSH_PATH, "$quagga_statedir/ripngd.vty",ripng vty socket)
AC_DEFINE_UNQUOTED(BGP_VTYSH_PATH, "$quagga_statedir/bgpd.vty",bgpd vty socket)
AC_DEFINE_UNQUOTED(OSPF_VTYSH_PATH, "$quagga_statedir/ospfd.vty",ospfd vty socket)
AC_DEFINE_UNQUOTED(OSPF6_VTYSH_PATH, "$quagga_statedir/ospf6d.vty",ospf6d vty socket)

dnl ---------------------------
dnl Check htonl works correctly
dnl ---------------------------
AC_MSG_CHECKING(for working htonl)
AC_CACHE_VAL(ac_cv_htonl_works, [
AC_TRY_LINK([#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif],
[htonl (0);],
ac_cv_htonl_works=yes,
ac_cv_htonl_works=no)])
AC_MSG_RESULT($ac_cv_htonl_works)

AC_OUTPUT(Makefile lib/Makefile zebra/Makefile ripd/Makefile 
	  ripngd/Makefile bgpd/Makefile ospfd/Makefile 
	  ospf6d/Makefile vtysh/Makefile doc/Makefile 
	  ospfclient/Makefile
	  redhat/quagga.spec)

echo "
zebra configuration
-------------------
quagga version           : ${VERSION}
host operationg system  : ${host_os}
source code location    : ${srcdir}
compiler                : ${CC}
compiler flags          : ${CFLAGS}
linker flags            : ${LDFLAGS} ${LIBS}
state file directory    : ${quagga_statedir}
user to run as		: ${enable_user}
group to run as		: ${enable_group}
group for vty sockets	: ${enable_vty_group}
"