1 dnl Process this file with autoconf to produce a configure script.
3 dnl This file is part of secnet.
4 dnl See README for full list of copyright holders.
6 dnl secnet is free software; you can redistribute it and/or modify it
7 dnl under the terms of the GNU General Public License as published by
8 dnl the Free Software Foundation; either version 3 of the License, or
9 dnl (at your option) any later version.
11 dnl secnet is distributed in the hope that it will be useful, but
12 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 dnl General Public License for more details.
16 dnl You should have received a copy of the GNU General Public License
17 dnl version 3 along with secnet; if not, see
18 dnl https://www.gnu.org/licenses/gpl.html.
20 sinclude(ac_prog_cc_no_writeable_strings.m4)
22 m4_include(subdirmk/subdirmk.ac)
24 AC_INIT(secnet,0.1.18+,secnet@chiark.greenend.org.uk)
25 AC_CONFIG_SRCDIR(secnet.c)
26 AC_CONFIG_HEADER(config.h)
31 AC_REVISION($Id: configure.in,v 1.4 2002/09/09 22:05:02 steve Exp $)
35 # If fink is on the path then it is assumed we should use it.
36 AC_PATH_PROG([FINK],[fink])
37 if test "x$FINK" != x; then
38 finkdir=`echo $FINK|sed 's,/[[^/]]*/[[^/]]*$,,'`
39 CPPFLAGS="-I$finkdir/include ${CPPFLAGS}"
40 LDFLAGS="-L$finkdir/lib ${LDFLAGS}"
47 AC_CHECK_HEADERS([stdint.h inttypes.h])
48 AC_CHECK_HEADERS([net/if.h net/route.h])
49 AC_CHECK_HEADERS([sys/socket.h])
50 AC_CHECK_HEADERS([linux/if_tun.h], [], [],
51 [#if HAVE_SYS_SOCKET_H
52 # include <sys/socket.h>
55 AC_CHECK_HEADERS([stropts.h sys/sockio.h net/if_tun.h])
57 AC_CHECK_SIZEOF(unsigned long long)
58 AC_CHECK_SIZEOF(unsigned long)
59 AC_CHECK_SIZEOF(unsigned int)
60 AC_CHECK_SIZEOF(unsigned short)
61 AC_CHECK_SIZEOF(unsigned char)
62 AC_PROG_CC_NO_WRITEABLE_STRINGS(WRITESTRINGS)
64 AC_ARG_ENABLE(hacky-parallel,
65 [AS_HELP_STRING([--enable-hacky-parallel],
66 [parallelise slow cryptography (default is no)])], [
69 y|1|yes) CFLAGS="$CFLAGS -DHACKY_PARALLEL" ;;
74 AC_DEFUN([REQUIRE_HEADER],[AC_CHECK_HEADER($1,,[AC_MSG_ERROR($1 not found)])])
76 dnl the order in which libraries is checked is important
77 dnl eg. adns on Solaris 2.5.1 depends on -lnsl and -lsocket
78 AC_CHECK_LIB(gmp,mpz_init_set_str)
79 AC_CHECK_LIB(gmp2,mpz_init_set_str)
80 AC_CHECK_LIB(gmp,__gmpz_init_set_str)
81 REQUIRE_HEADER([gmp.h])
82 dnl Would love to barf if no gmp was found, but how to test? Requiring the header will do for now.
83 SECNET_C_GETFUNC(inet_ntoa,nsl)
84 AC_CHECK_LIB(socket,socket)
85 SECNET_C_GETFUNC(inet_aton,resolv)
86 AC_CHECK_LIB(adns,adns_init)
87 REQUIRE_HEADER([adns.h])
89 AC_MSG_NOTICE([Checking requirements for IPv6 support...])
91 m4_define(NO_IPV6,[enable_ipv6=false])
92 AC_CHECK_DECL(AF_INET6, [],[NO_IPV6],[#include <netinet/in.h>])
93 AC_CHECK_FUNC(adns_addr2text, [],[NO_IPV6])
95 AC_MSG_NOTICE([Enabling IPv6 support])
96 AC_DEFINE(CONFIG_IPV6, 1,
97 [Define to 1 to use IPv6 support in system and adns])
99 AC_MSG_WARN([Disabling IPv6 support])
102 AC_OUTPUT(common.make test-common.make
103 test-example/Makefile stest/Makefile mtest/Makefile,
104 echo timestamp >config.stamp)
114 /* These used to be in config.h.bot, but are now in configure.in. */
116 #ifdef HAVE_INTTYPES_H
117 #include <inttypes.h>
122 #if SIZEOF_UNSIGNED_LONG_LONG==8
123 typedef unsigned long long uint64_t;
124 typedef long long int64_t;
125 #elif SIZEOF_UNSIGNED_LONG==8
126 typedef unsigned long uint64_t;
127 typedef long int64_t;
129 #error I do not know what to use for a uint64_t.
132 /* Give us an unsigned 32-bit data type. */
133 #if SIZEOF_UNSIGNED_LONG==4
134 typedef unsigned long uint32_t;
135 typedef long int32_t;
136 #elif SIZEOF_UNSIGNED_INT==4
137 typedef unsigned int uint32_t;
140 #error I do not know what to use for a uint32_t.
143 /* An unsigned 16-bit data type. */
144 #if SIZEOF_UNSIGNED_INT==2
145 typedef unsigned int uint16_t;
147 #elif SIZEOF_UNSIGNED_SHORT==2
148 typedef unsigned short uint16_t;
149 typedef short int16_t;
151 #error I do not know what to use for a uint16_t.
154 /* An unsigned 8-bit data type */
155 #if SIZEOF_UNSIGNED_CHAR==1
156 typedef unsigned char uint8_t;
158 #error I do not know what to use for a uint8_t.
164 #define NORETURN(_x) void _x __attribute__ ((noreturn))
165 #define FORMAT(_a,_b,_c) __attribute__ ((format (_a,_b,_c)))
167 #define NORETURN(_x) _x
168 #define FORMAT(_a,_b,_c)
171 #endif /* _CONFIG_H */