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 AC_INIT(secnet,0.1.18+,secnet@chiark.greenend.org.uk)
23 AC_CONFIG_SRCDIR(secnet.c)
24 AC_CONFIG_HEADER(config.h)
27 AC_REVISION($Id: configure.in,v 1.4 2002/09/09 22:05:02 steve Exp $)
31 # If fink is on the path then it is assumed we should use it.
32 AC_PATH_PROG([FINK],[fink])
33 if test "x$FINK" != x; then
34 finkdir=`echo $FINK|sed 's,/[[^/]]*/[[^/]]*$,,'`
35 CPPFLAGS="-I$finkdir/include ${CPPFLAGS}"
36 LDFLAGS="-L$finkdir/lib ${LDFLAGS}"
44 AC_CHECK_HEADERS([stdint.h inttypes.h])
45 AC_CHECK_HEADERS([net/if.h net/route.h])
46 AC_CHECK_HEADERS([sys/socket.h])
47 AC_CHECK_HEADERS([linux/if_tun.h], [], [],
48 [#if HAVE_SYS_SOCKET_H
49 # include <sys/socket.h>
52 AC_CHECK_HEADERS([stropts.h sys/sockio.h net/if_tun.h])
54 AC_CHECK_SIZEOF(unsigned long long)
55 AC_CHECK_SIZEOF(unsigned long)
56 AC_CHECK_SIZEOF(unsigned int)
57 AC_CHECK_SIZEOF(unsigned short)
58 AC_CHECK_SIZEOF(unsigned char)
59 AC_PROG_CC_NO_WRITEABLE_STRINGS(WRITESTRINGS)
61 AC_ARG_ENABLE(hacky-parallel,
62 [AS_HELP_STRING([--enable-hacky-parallel],
63 [parallelise slow cryptography (default is no)])], [
66 y|1|yes) CFLAGS="$CFLAGS -DHACKY_PARALLEL" ;;
71 AC_DEFUN([REQUIRE_HEADER],[AC_CHECK_HEADER($1,,[AC_MSG_ERROR($1 not found)])])
73 dnl the order in which libraries is checked is important
74 dnl eg. adns on Solaris 2.5.1 depends on -lnsl and -lsocket
75 AC_CHECK_LIB(gmp,mpz_init_set_str)
76 AC_CHECK_LIB(gmp2,mpz_init_set_str)
77 AC_CHECK_LIB(gmp,__gmpz_init_set_str)
78 REQUIRE_HEADER([gmp.h])
79 dnl Would love to barf if no gmp was found, but how to test? Requiring the header will do for now.
80 SECNET_C_GETFUNC(inet_ntoa,nsl)
81 AC_CHECK_LIB(socket,socket)
82 SECNET_C_GETFUNC(inet_aton,resolv)
83 AC_CHECK_LIB(adns,adns_init)
84 REQUIRE_HEADER([adns.h])
86 AC_MSG_NOTICE([Checking requirements for IPv6 support...])
88 m4_define(NO_IPV6,[enable_ipv6=false])
89 AC_CHECK_DECL(AF_INET6, [],[NO_IPV6],[#include <netinet/in.h>])
90 AC_CHECK_FUNC(adns_addr2text, [],[NO_IPV6])
92 AC_MSG_NOTICE([Enabling IPv6 support])
93 AC_DEFINE(CONFIG_IPV6, 1,
94 [Define to 1 to use IPv6 support in system and adns])
96 AC_MSG_WARN([Disabling IPv6 support])
99 AC_OUTPUT(Makefile common.make test/Makefile, echo timestamp >stamp-h)
109 /* These used to be in config.h.bot, but are now in configure.in. */
111 #ifdef HAVE_INTTYPES_H
112 #include <inttypes.h>
117 #if SIZEOF_UNSIGNED_LONG_LONG==8
118 typedef unsigned long long uint64_t;
119 typedef long long int64_t;
120 #elif SIZEOF_UNSIGNED_LONG==8
121 typedef unsigned long uint64_t;
122 typedef long int64_t;
124 #error I do not know what to use for a uint64_t.
127 /* Give us an unsigned 32-bit data type. */
128 #if SIZEOF_UNSIGNED_LONG==4
129 typedef unsigned long uint32_t;
130 typedef long int32_t;
131 #elif SIZEOF_UNSIGNED_INT==4
132 typedef unsigned int uint32_t;
135 #error I do not know what to use for a uint32_t.
138 /* An unsigned 16-bit data type. */
139 #if SIZEOF_UNSIGNED_INT==2
140 typedef unsigned int uint16_t;
142 #elif SIZEOF_UNSIGNED_SHORT==2
143 typedef unsigned short uint16_t;
144 typedef short int16_t;
146 #error I do not know what to use for a uint16_t.
149 /* An unsigned 8-bit data type */
150 #if SIZEOF_UNSIGNED_CHAR==1
151 typedef unsigned char uint8_t;
153 #error I do not know what to use for a uint8_t.
159 #define NORETURN(_x) void _x __attribute__ ((noreturn))
160 #define FORMAT(_a,_b,_c) __attribute__ ((format (_a,_b,_c)))
162 #define NORETURN(_x) _x
163 #define FORMAT(_a,_b,_c)
166 #endif /* _CONFIG_H */