Increase MTU by 4 bytes to allow VLAN tagged Ethernet frames in hub and switch mode.
[oweals/tinc.git] / configure.in
1 dnl Process this file with autoconf to produce a configure script.
2
3 dnl $Id$
4
5 AC_PREREQ(2.59)
6 AC_INIT
7 AC_CONFIG_SRCDIR([src/tincd.c])
8 AM_INIT_AUTOMAKE(tinc, 1.0-cvs)
9 AC_CONFIG_HEADERS([config.h])
10 AM_MAINTAINER_MODE
11
12 dnl Include the macros from the m4/ directory
13 AM_ACLOCAL_INCLUDE(m4)
14
15 AM_GNU_GETTEXT([external])
16 AM_GNU_GETTEXT_VERSION(0.12.1)
17
18 # Enable GNU extensions.
19 # Define this here, not in acconfig's @TOP@ section, since definitions
20 # in the latter don't make it into the configure-time tests.
21 AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extenstions])
22 AC_DEFINE([__USE_BSD], 1, [Enable BSD extensions])
23
24 ALL_LINGUAS="nl"
25
26 dnl Checks for programs.
27 AC_PROG_CC
28 AC_PROG_CPP
29 AC_PROG_GCC_TRADITIONAL
30 AC_PROG_AWK
31 AC_PROG_INSTALL
32 AC_PROG_LN_S
33 AC_PROG_MAKE_SET
34 AC_PROG_RANLIB
35
36 AC_ISC_POSIX
37
38 dnl Check and set OS
39
40 #AC_CANONICAL_HOST
41
42 case $host_os in
43   *linux*)
44     AC_DEFINE(HAVE_LINUX, 1, [Linux])
45     [ rm -f src/device.c; ln -sf linux/device.c src/device.c ]
46   ;;
47   *freebsd*)
48     AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
49     [ rm -f src/device.c; ln -sf freebsd/device.c src/device.c ]
50   ;;
51   *darwin*)
52     AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
53     [ rm -f src/device.c; ln -sf darwin/device.c src/device.c ]
54   ;;
55   *solaris*)
56     AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
57     [ rm -f src/device.c; ln -sf solaris/device.c src/device.c ]
58   ;;
59   *openbsd*)
60     AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
61     [ rm -f src/device.c; ln -sf openbsd/device.c src/device.c ]
62   ;;
63   *netbsd*)
64     AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
65     [ rm -f src/device.c; ln -sf netbsd/device.c src/device.c ]
66   ;;
67   *cygwin*)
68     AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
69     [ rm -f src/device.c; ln -sf cygwin/device.c src/device.c ]
70   ;;
71   *mingw*)
72     AC_DEFINE(HAVE_MINGW, 1, [MinGW])
73     [ rm -f src/device.c; cp -f src/mingw/device.c src/device.c ]
74     LIBS="$LIBS -lws2_32"
75   ;;
76   *)
77     AC_MSG_ERROR("Unknown operating system.")
78   ;;
79 esac
80
81 AC_CACHE_SAVE
82
83 if test -d /sw/include ; then
84   CPPFLAGS="$CPPFLAGS -I/sw/include"
85 fi
86 if test -d /sw/lib ; then
87   LIBS="$LIBS -L/sw/lib"
88 fi
89
90 dnl Checks for libraries.
91
92 dnl Checks for header files.
93 dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies.
94
95 AC_HEADER_STDC
96 AC_CHECK_HEADERS([stdbool.h syslog.h sys/file.h sys/ioctl.h sys/param.h sys/time.h sys/socket.h sys/wait.h sys/mman.h netdb.h arpa/inet.h])
97 AC_CHECK_HEADERS([net/if.h net/ethernet.h net/if_arp.h netinet/in_systm.h netinet/in.h netinet/in6.h],
98   [], [],
99   [#ifdef HAVE_SYS_TYPES_H
100    #include <sys/types.h>
101    #endif
102    #ifdef HAVE_NETDB_H
103    #include <netdb.h>
104    #endif
105    #ifdef HAVE_ARPA_INET_H
106    #include <arpa/inet.h>
107    #endif
108    #ifdef HAVE_SYS_SOCKET_H
109    #include <sys/socket.h>
110    #endif
111   ]
112 )
113 AC_CHECK_HEADERS([netinet/if_ether.h netinet/ip.h netinet/ip6.h],
114   [], [],
115   [#ifdef HAVE_SYS_TYPES_H
116    #include <sys/types.h>
117    #endif
118    #ifdef HAVE_NETDB_H
119    #include <netdb.h>
120    #endif
121    #ifdef HAVE_ARPA_INET_H
122    #include <arpa/inet.h>
123    #endif
124    #ifdef HAVE_SYS_SOCKET_H
125    #include <sys/socket.h>
126    #endif
127    #ifdef HAVE_NET_IF_H
128    #include <net/if.h>
129    #endif
130    #ifdef HAVE_NETINET_IN_SYSTM_H
131    #include <netinet/in_systm.h>
132    #endif
133    #ifdef HAVE_NETINET_IN_H
134    #include <netinet/in.h>
135    #endif
136    #ifdef HAVE_NETINET_IN6_H
137    #include <netinet/in6.h>
138    #endif
139    #ifdef HAVE_NET_ETHERNET_H
140    #include <net/ethernet.h>
141    #endif
142    #ifdef HAVE_NET_IF_ARP_H
143    #include <net/if_arp.h>
144    #endif
145   ]
146 )
147 AC_CHECK_HEADERS([netinet/tcp.h netinet/ip_icmp.h netinet/icmp6.h],
148   [], [],
149   [#ifdef HAVE_SYS_TYPES_H
150    #include <sys/types.h>
151    #endif
152    #ifdef HAVE_NETDB_H
153    #include <netdb.h>
154    #endif
155    #ifdef HAVE_ARPA_INET_H
156    #include <arpa/inet.h>
157    #endif
158    #ifdef HAVE_SYS_SOCKET_H
159    #include <sys/socket.h>
160    #endif
161    #ifdef HAVE_NET_IF_H
162    #include <net/if.h>
163    #endif
164    #ifdef HAVE_NETINET_IN_SYSTM_H
165    #include <netinet/in_systm.h>
166    #endif
167    #ifdef HAVE_NETINET_IN_H
168    #include <netinet/in.h>
169    #endif
170    #ifdef HAVE_NETINET_IP_H
171    #include <netinet/ip.h>
172    #endif
173    #ifdef HAVE_NETINET_IN6_H
174    #include <netinet/in6.h>
175    #endif
176    #ifdef HAVE_NETINET_IP6_H
177    #include <netinet/ip6.h>
178    #endif
179    #ifdef HAVE_NET_ETHERNET_H
180    #include <net/ethernet.h>
181    #endif
182    #ifdef HAVE_NET_IF_ARP_H
183    #include <net/if_arp.h>
184    #endif
185    #ifdef HAVE_NETINET_IF_ETHER_H
186    #include <netinet/if_ether.h>
187    #endif
188   ]
189 )
190
191 dnl Checks for typedefs, structures, and compiler characteristics.
192 AC_C_CONST
193 AC_C_VOLATILE
194 AC_TYPE_PID_T
195 AC_TYPE_SIZE_T
196 AC_HEADER_TIME
197 AC_STRUCT_TM
198
199 tinc_ATTRIBUTE(__malloc__)
200
201 AC_CHECK_TYPES([socklen_t, struct ether_header, struct arphdr, struct ether_arp, struct in_addr, struct addrinfo, struct ip, struct icmp, struct in6_addr, struct sockaddr_in6, struct ip6_hdr, struct icmp6_hdr, struct nd_neighbor_solicit, struct nd_opt_hdr], , ,
202   [#ifdef HAVE_SYS_TYPES_H
203    #include <sys/types.h>
204    #endif
205    #ifdef HAVE_NETDB_H
206    #include <netdb.h>
207    #endif
208    #ifdef HAVE_ARPA_INET_H
209    #include <arpa/inet.h>
210    #endif
211    #ifdef HAVE_SYS_SOCKET_H
212    #include <sys/socket.h>
213    #endif
214    #ifdef HAVE_NET_IF_H
215    #include <net/if.h>
216    #endif
217    #ifdef HAVE_NETINET_IN_SYSTM_H
218    #include <netinet/in_systm.h>
219    #endif
220    #ifdef HAVE_NETINET_IN_H
221    #include <netinet/in.h>
222    #endif
223    #ifdef HAVE_NETINET_IP_H
224    #include <netinet/ip.h>
225    #endif
226    #ifdef HAVE_NETINET_TCP_H
227    #include <netinet/tcp.h>
228    #endif
229    #ifdef HAVE_NETINET_IN6_H
230    #include <netinet/in6.h>
231    #endif
232    #ifdef HAVE_NETINET_IP6_H
233    #include <netinet/ip6.h>
234    #endif
235    #ifdef HAVE_NET_ETHERNET_H
236    #include <net/ethernet.h>
237    #endif
238    #ifdef HAVE_NET_IF_ARP_H
239    #include <net/if_arp.h>
240    #endif
241    #ifdef HAVE_NETINET_IF_ETHER_H
242    #include <netinet/if_ether.h>
243    #endif
244    #ifdef HAVE_NETINET_IP_ICMP_H
245    #include <netinet/ip_icmp.h>
246    #endif
247    #ifdef HAVE_NETINET_ICMP6_H
248    #include <netinet/icmp6.h>
249    #endif
250   ]
251 )
252
253 dnl Checks for library functions.
254 AC_FUNC_MEMCMP
255 AC_FUNC_ALLOCA
256 AC_TYPE_SIGNAL
257 AC_CHECK_FUNCS([asprintf daemon fchmod flock ftime fork get_current_dir_name gettimeofday mlockall putenv random select strdup strerror strsignal strtol system unsetenv vsyslog])
258 jm_FUNC_MALLOC
259 jm_FUNC_REALLOC
260
261 dnl Support for SunOS
262
263 AC_CHECK_FUNC(socket, [], [
264   AC_CHECK_LIB(socket, connect)
265 ])
266 AC_CHECK_FUNC(gethostbyname, [], [
267   AC_CHECK_LIB(nsl, gethostbyname)
268 ])
269
270 AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo inet_aton])
271
272 AC_CACHE_SAVE
273
274 dnl These are defined in files in m4/
275
276 case $host_os in
277   *linux*)
278     tinc_TUNTAP
279   ;;
280 esac
281
282 tinc_OPENSSL
283 tinc_ZLIB
284 tinc_LZO
285
286 dnl Check if support for jumbograms is requested 
287 AC_ARG_ENABLE(jumbograms,
288   AS_HELP_STRING([--enable-jumbograms], [enable support for jumbograms (packets up to 9000 bytes)]),
289   [ AC_DEFINE(ENABLE_JUMBOGRAMS, 1, [Support for jumbograms (packets up to 9000 bytes)]) ]
290 )
291
292 dnl Check if checkpoint tracing has to be enabled
293 AC_ARG_ENABLE(tracing,
294   AS_HELP_STRING([--enable-tracing], [enable checkpoint tracing (debugging only)]),
295   [ AC_DEFINE(ENABLE_TRACING, 1, [Checkpoint tracing]) ]
296 )
297
298 AC_SUBST(INCLUDES)
299
300 AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile doc/tincd.8 doc/tinc.conf.5 doc/tincinclude.texi lib/Makefile po/Makefile.in m4/Makefile])
301
302 AC_OUTPUT