1 dnl Process this file with autoconf to produce a configure script.
3 sinclude(ac_prog_cc_no_writeable_strings.m4)
5 AC_INIT(secnet,0.1.18+,secnet@chiark.greenend.org.uk)
6 AC_CONFIG_SRCDIR(secnet.c)
7 AC_CONFIG_HEADER(config.h)
10 AC_REVISION($Id: configure.in,v 1.4 2002/09/09 22:05:02 steve Exp $)
14 # If fink is on the path then it is assumed we should use it.
15 AC_PATH_PROG([FINK],[fink])
16 if test "x$FINK" != x; then
17 finkdir=`echo $FINK|sed 's,/[[^/]]*/[[^/]]*$,,'`
18 CPPFLAGS="-I$finkdir/include ${CPPFLAGS}"
19 LDFLAGS="-L$finkdir/lib ${LDFLAGS}"
27 AC_CHECK_HEADERS([stdint.h inttypes.h])
28 AC_CHECK_HEADERS([net/if.h net/route.h])
29 AC_CHECK_HEADERS([sys/socket.h])
30 AC_CHECK_HEADERS([linux/if.h], [], [],
31 [#if HAVE_SYS_SOCKET_H
32 # include <sys/socket.h>
35 AC_CHECK_HEADERS([stropts.h sys/sockio.h net/if_tun.h])
37 AC_CHECK_SIZEOF(unsigned long long)
38 AC_CHECK_SIZEOF(unsigned long)
39 AC_CHECK_SIZEOF(unsigned int)
40 AC_CHECK_SIZEOF(unsigned short)
41 AC_CHECK_SIZEOF(unsigned char)
42 AC_PROG_CC_NO_WRITEABLE_STRINGS(WRITESTRINGS)
44 AC_ARG_ENABLE(hacky-parallel,
45 [AS_HELP_STRING([--enable-hacky-parallel],
46 [parallelise slow cryptography (default is no)])], [
49 y|1|yes) CFLAGS="$CFLAGS -DHACKY_PARALLEL" ;;
54 AC_DEFUN([REQUIRE_HEADER],[AC_CHECK_HEADER($1,,[AC_MSG_ERROR($1 not found)])])
56 dnl the order in which libraries is checked is important
57 dnl eg. adns on Solaris 2.5.1 depends on -lnsl and -lsocket
58 AC_CHECK_LIB(gmp,mpz_init_set_str)
59 AC_CHECK_LIB(gmp2,mpz_init_set_str)
60 AC_CHECK_LIB(gmp,__gmpz_init_set_str)
61 REQUIRE_HEADER([gmp.h])
62 dnl Would love to barf if no gmp was found, but how to test? Requiring the header will do for now.
63 AC_CHECK_LIB(fl,yywrap)
64 if test "$ac_cv_lib_fl_yywrap" != yes; then
65 AC_MSG_ERROR([A compatible libfl is required])
67 AC_CHECK_LIB(nsl,inet_ntoa)
68 AC_CHECK_LIB(socket,socket)
69 AC_CHECK_LIB(resolv,inet_aton)
70 AC_CHECK_LIB(adns,adns_init)
71 REQUIRE_HEADER([adns.h])
73 AC_MSG_NOTICE([Checking requirements for IPv6 support...])
75 m4_define(NO_IPV6,[enable_ipv6=false])
76 AC_CHECK_DECL(AF_INET6, [],[NO_IPV6],[#include <netinet/in.h>])
77 AC_CHECK_FUNC(adns_addr2text, [],[NO_IPV6])
79 AC_MSG_NOTICE([Enabling IPv6 support])
80 AC_DEFINE(CONFIG_IPV6, 1,
81 [Define to 1 to use IPv6 support in system and adns])
83 AC_MSG_WARN([Disabling IPv6 support])
86 AC_OUTPUT(Makefile,echo timestamp >stamp-h)
96 /* These used to be in config.h.bot, but are now in configure.in. */
98 #ifdef HAVE_INTTYPES_H
104 #if SIZEOF_UNSIGNED_LONG_LONG==8
105 typedef unsigned long long uint64_t;
106 typedef long long int64_t;
107 #elif SIZEOF_UNSIGNED_LONG==8
108 typedef unsigned long uint64_t;
109 typedef long int64_t;
111 #error I do not know what to use for a uint64_t.
114 /* Give us an unsigned 32-bit data type. */
115 #if SIZEOF_UNSIGNED_LONG==4
116 typedef unsigned long uint32_t;
117 typedef long int32_t;
118 #elif SIZEOF_UNSIGNED_INT==4
119 typedef unsigned int uint32_t;
122 #error I do not know what to use for a uint32_t.
125 /* An unsigned 16-bit data type. */
126 #if SIZEOF_UNSIGNED_INT==2
127 typedef unsigned int uint16_t;
129 #elif SIZEOF_UNSIGNED_SHORT==2
130 typedef unsigned short uint16_t;
131 typedef short int16_t;
133 #error I do not know what to use for a uint16_t.
136 /* An unsigned 8-bit data type */
137 #if SIZEOF_UNSIGNED_CHAR==1
138 typedef unsigned char uint8_t;
140 #error I do not know what to use for a uint8_t.
146 #define NORETURN(_x) void _x __attribute__ ((noreturn))
147 #define FORMAT(_a,_b,_c) __attribute__ ((format (_a,_b,_c)))
149 #define NORETURN(_x) _x
150 #define FORMAT(_a,_b,_c)
153 #endif /* _CONFIG_H */