gvpe/configure.ac

dnl Process this file with autoconf to produce a configure script.

AC_PREREQ(2.59)
AC_INIT
AC_CONFIG_SRCDIR([src/vped.C])
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE(gvpe, 1.8)
AC_CONFIG_HEADERS([config.h])
AM_MAINTAINER_MODE

AH_TOP([
#ifndef CONFIG_H__
#define CONFIG_H__

#ifdef __cplusplus
   using namespace std;
#endif

])

AH_BOTTOM([
typedef unsigned char u8;
typedef signed char s8;

#if __CYGWIN__

typedef unsigned short u16;
typedef unsigned int u32;
typedef signed short s16;
typedef signed int s32;

#else
#include <inttypes.h>

/* old modula-2 habits */
typedef uint16_t u16;
typedef uint32_t u32;
typedef int16_t s16;
typedef int32_t s32;
#endif

#endif
])

dnl Include the macros from the m4/ directory
AM_ACLOCAL_INCLUDE(m4)

AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION(0.11.5)

# Enable GNU extensions.
# Define this here, not in acconfig's @TOP@ section, since definitions
# in the latter don't make it into the configure-time tests.
AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extenstions])

# do NOT define POSIX_SOURCE, sicne this clashes with many BSDs
dnl AC_DEFINE([_POSIX_SOURCE], 1, [Enable POSIX 1003.1 extensions])
dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions])

ALL_LINGUAS=""

dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_GCC_TRADITIONAL
AC_PROG_AWK
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_RANLIB

AC_ARG_ENABLE(iftype,
  [AS_HELP_STRING(--enable-iftype=TYPE/SUBTYPE,
     Use kernel/net device interface TYPE/SUBTYPE.
     Working combinations are:
        "native/linux"
        "tincd/linux"
        "tincd/freebsd"
        "tincd/openbsd"
        "tincd/darwin"
        "native/cygwin";
     Untested combinations are:
        "tincd/netbsd"
        "tincd/solaris"
        "tincd/mingw"
        "tincd/raw_socket"
        "tincd/uml_socket";
     Broken combinations are:
        "tincd/cygwin";
     The default is to autodetect.
  )],
  [
    IFTYPE=`echo $enableval | sed s%/.*%%`
    IFSUBTYPE=`echo $enableval | sed s%.*/%%`
  ]
)

dnl Check and set OS
AC_MSG_CHECKING(for kernel networking interface type)

if test "x$IFTYPE" = "x"; then
   case $target_os in
     *linux*)
       IFTYPE=native
       IFSUBTYPE=linux
       AC_DEFINE(HAVE_LINUX, 1, [Linux])
     ;;
     *freebsd*)
       IFTYPE=tincd
       IFSUBTYPE=freebsd
       AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
     ;;
     *darwin*)
       IFTYPE=tincd
       IFSUBTYPE=darwin
       AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
     ;;
     *solaris*)
       IFTYPE=tincd
       IFSUBTYPE=solaris
       AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
     ;;
     *openbsd*)
       IFTYPE=tincd
       IFSUBTYPE=openbsd
       AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
     ;;
     *netbsd*)
       IFTYPE=tincd
       IFSUBTYPE=netbsd
       AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
     ;;
     *cygwin*)
       IFTYPE=native
       IFSUBTYPE=cygwin
       AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
     ;;
     *)
       AC_MSG_ERROR("Unknown operating system.")
     ;;
   esac
fi
AC_MSG_RESULT($IFTYPE/$IFSUBTYPE)
AC_SUBST(IFTYPE,$IFTYPE)
AC_SUBST(IFSUBTYPE,$IFSUBTYPE)
AC_DEFINE_UNQUOTED(IFTYPE,"$IFTYPE",[kernel interface type])
AC_DEFINE_UNQUOTED(IFSUBTYPE,"$IFSUBTYPE",[kernel interface subtype])

AC_CACHE_SAVE

dnl Checks for libraries.

AC_LANG(C++)
AC_CHECK_HEADERS(ext/hash_map)

dnl Checks for header files.
AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h malloc.h stdint.h strings.h syslog.h unistd.h \
        sys/file.h sys/ioctl.h sys/param.h sys/time.h netinet/in_systm.h sys/cygwin.h \
        sys/mman.h netinet/in.h])
AC_CHECK_HEADERS([arpa/inet.h net/ethernet.h net/if.h netinet/ip.h netinet/tcp.h netinet/in_systm.h], [], [],
[
#include <sys/types.h>
#include <sys/socket.h>
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
])

dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_STRUCT_TM

AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
[
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
  #include <sys/socket.h>]], [[socklen_t len = 42; return len;]])],[ac_cv_type_socklen_t=yes],[ac_cv_type_socklen_t=no])
])
if test $ac_cv_type_socklen_t = yes; then
  AC_DEFINE(HAVE_SOCKLEN_T, 1, [socklen_t available])
fi

AC_CACHE_CHECK([for struct addrinfo], ac_cv_struct_addrinfo,
[
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
  #include <sys/socket.h>
  #include <netdb.h>]], [[struct addrinfo ai; ai.ai_family = AF_INET; return ai.ai_family;]])],[ac_cv_struct_addrinfo=yes],[ac_cv_struct_addrinfo=no])
])
if test $ac_cv_struct_addrinfo = yes; then
  AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available])
fi

dnl Checks for library functions.
AC_TYPE_SIGNAL

AC_LANG_PUSH(C)

AC_HEADER_STDC

dnl argl, could somebody catapult darwin into the 21st century???
AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall)

AC_FUNC_ALLOCA

dnl Support for SunOS

AC_CHECK_FUNC(socket, [], [
  AC_CHECK_LIB(socket, connect)
])
AC_CHECK_FUNC(gethostbyname, [], [
  AC_CHECK_LIB(nsl, gethostbyname)
])

AC_LANG_POP

dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo])

AC_CACHE_SAVE

dnl These are defined in files in m4/
tinc_TUNTAP

tinc_OPENSSL
if test "x$openssl_include" != x; then
   CXXFLAGS="$CXXFLAGS -I$openssl_include"
fi
dnl tinc_ZLIB

AC_ARG_ENABLE(static-daemon,
  [AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)],
  [LDFLAGS_DAEMON=-static]
)
AC_SUBST(LDFLAGS_DAEMON)

AC_ARG_ENABLE(rohc,
  [AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)],
  [
  echo
  echo "**********************************************************************"
  echo "**********************************************************************"
  echo "**** --enable-rohc is highly experimental, do not use ****************"
  echo "**********************************************************************"
  echo "**********************************************************************"
  echo
  rohc=true
  AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support])
  ]
)

AM_CONDITIONAL(ROHC, test x$rohc = xtrue)

AC_ARG_ENABLE(icmp,
  [AS_HELP_STRING(--enable-icmp,enable icmp protocol support (default disabled).)],
  AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.])
)

AC_ARG_ENABLE(tcp,
  [AS_HELP_STRING(--enable-tcp,enable tcp protocol support (default disabled).)],
  AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.])
)

AC_ARG_ENABLE(dns,
  [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (DOES NOT WORK).)],
  [
    AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])])
    AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])])

    AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
  ]
)

AC_ARG_ENABLE(http-proxy,
  [AS_HELP_STRING(--enable-http-proxy,enable http proxy connect support (default disabled).)],
  AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.])
)

HMAC=12
AC_ARG_ENABLE(hmac-length,
  [AS_HELP_STRING(--enable-hmac-length=BYTES,[
      use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])],
  HMAC=$enableval
)
AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.])

RAND=8
AC_ARG_ENABLE(rand-length,
  [AS_HELP_STRING(--enable-rand-length=BYTES,
      [use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])],
  RAND=$enableval
)
AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.])

MTU=1500
AC_ARG_ENABLE(mtu,
  [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)],
  MTU=$enableval
)
AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.])

COMPRESS=1
AC_ARG_ENABLE(compression,
  [AS_HELP_STRING(--disable-compression,Disable compression support.)],
  if test "x$enableval" = xno; then
     COMPRESS=0
  fi
)
AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.])

CIPHER=bf_cbc
AC_ARG_ENABLE(cipher,
  [AS_HELP_STRING(--enable-cipher,[
      Select the symmetric cipher (default "bf").
      Must be one of "bf" (blowfish), "aes-128" (rijndael), "aes-192" or "aes-256".])],
  if test "x$enableval" = xbf     ; then CIPHER=bf_cbc     ; fi
  if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi
  if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi
  if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi
)
AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.])

DIGEST=sha1
AC_ARG_ENABLE(digest,
  [AS_HELP_STRING(--enable-digest,[
      Select the digets algorithm to use (default "sha1"). Must be one of
      "sha1", "ripemd160", "md5" or "md4" (insecure).])],
  if test "x$enableval" = xsha1     ; then DIGEST=sha1     ; fi
  if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi
  if test "x$enableval" = xmd5      ; then DIGEST=md5      ; fi
  if test "x$enableval" = xmd4      ; then DIGEST=md4      ; fi
)
AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.])

if $CXX -v --help 2>&1 | grep -q fno-rtti; then
   CXXFLAGS="$CXXFLAGS -fno-rtti"
fi

if $CXX -v --help 2>&1 | grep -q fexceptions; then
   CXXFLAGS="$CXXFLAGS -fno-exceptions"
fi

dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then
dnl    CXXFLAGS="$CXXFLAGS -ffunction-sections"
dnl fi
dnl 
dnl if $LD -v --help 2>&1 | grep -q gc-sections; then
dnl    LDFLAGS="$LDFLAGS -Wl,--gc-sections"
dnl fi

AC_CONFIG_COMMANDS_POST([

echo
echo "***"
echo "*** Configuration Summary"
echo "***"
echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE"
echo "*** Cipher used:  $CIPHER"
echo "*** Digest used:  $DIGEST"
echo "*** HMAC length:  $HMAC"
echo "*** RAND used:    $RAND"
echo "*** Max. MTU:     $MTU"
echo "*** Compression:  $COMPRESS"

if test "x$DIGEST" = xmd4; then
echo "***"
echo "*** WARNING: The digest you have chosen ($DIGEST) is known to be insecure"
fi

if test "$HMAC" -lt 12; then
echo "***"
echo "*** WARNING: The hmac length you have chosen ($HMAC) is probably insecure"
fi

if test "$RAND" -lt 8; then
echo "***"
echo "*** WARNING: The random prefix you have chosen ($RAND) is probably insecure"
fi

echo "***"

echo

])

AC_SUBST(INCLUDES)

AC_CONFIG_FILES([Makefile po/Makefile.in
src/Makefile
doc/Makefile
lib/Makefile
m4/Makefile
])
AC_OUTPUT
Revision:	1.36
Committed:	Thu Mar 17 23:59:37 2005 UTC (19 years, 2 months ago) by pcg
Branch:	MAIN
Changes since 1.35:	+3 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.1	dnl Process this file with autoconf to produce a configure script.
2
3	pcg	1.28	AC_PREREQ(2.59)
4			AC_INIT
5			AC_CONFIG_SRCDIR([src/vped.C])
6	pcg	1.1	AC_CANONICAL_TARGET
7	pcg	1.35	AM_INIT_AUTOMAKE(gvpe, 1.8)
8	pcg	1.28	AC_CONFIG_HEADERS([config.h])
9	pcg	1.1	AM_MAINTAINER_MODE
10
11			AH_TOP([
12			#ifndef CONFIG_H__
13			#define CONFIG_H__
14
15			#ifdef __cplusplus
16			using namespace std;
17			#endif
18
19			])
20
21			AH_BOTTOM([
22	pcg	1.33	typedef unsigned char u8;
23			typedef signed char s8;
24
25	pcg	1.1	#if __CYGWIN__
26
27			typedef unsigned short u16;
28			typedef unsigned int u32;
29	pcg	1.33	typedef signed short s16;
30			typedef signed int s32;
31	pcg	1.1
32			#else
33			#include <inttypes.h>
34
35			/* old modula-2 habits */
36			typedef uint16_t u16;
37			typedef uint32_t u32;
38	pcg	1.33	typedef int16_t s16;
39			typedef int32_t s32;
40	pcg	1.1	#endif
41
42			#endif
43			])
44
45			dnl Include the macros from the m4/ directory
46			AM_ACLOCAL_INCLUDE(m4)
47
48			AM_GNU_GETTEXT([external])
49			AM_GNU_GETTEXT_VERSION(0.11.5)
50
51			# Enable GNU extensions.
52			# Define this here, not in acconfig's @TOP@ section, since definitions
53			# in the latter don't make it into the configure-time tests.
54			AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extenstions])
55	pcg	1.22
56			# do NOT define POSIX_SOURCE, sicne this clashes with many BSDs
57			dnl AC_DEFINE([_POSIX_SOURCE], 1, [Enable POSIX 1003.1 extensions])
58			dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions])
59	pcg	1.1
60			ALL_LINGUAS=""
61
62			dnl Checks for programs.
63			AC_PROG_CC
64			AC_PROG_CPP
65			AC_PROG_CXX
66			AC_PROG_GCC_TRADITIONAL
67			AC_PROG_AWK
68			AC_PROG_INSTALL
69			AC_PROG_LN_S
70			AC_PROG_MAKE_SET
71			AC_PROG_RANLIB
72
73	pcg	1.8	AC_ARG_ENABLE(iftype,
74	pcg	1.28	[AS_HELP_STRING(--enable-iftype=TYPE/SUBTYPE,
75	pcg	1.8	Use kernel/net device interface TYPE/SUBTYPE.
76			Working combinations are:
77	pcg	1.14	"native/linux"
78			"tincd/linux"
79	pcg	1.16	"tincd/freebsd"
80	pcg	1.17	"tincd/openbsd"
81	pcg	1.18	"tincd/darwin"
82	pcg	1.16	"native/cygwin";
83	pcg	1.8	Untested combinations are:
84	pcg	1.14	"tincd/netbsd"
85			"tincd/solaris"
86	pcg	1.36	"tincd/mingw"
87			"tincd/raw_socket"
88			"tincd/uml_socket";
89	pcg	1.8	Broken combinations are:
90	pcg	1.14	"tincd/cygwin";
91	pcg	1.9	The default is to autodetect.
92	pcg	1.28	)],
93	pcg	1.8	[
94			IFTYPE=`echo $enableval \| sed s%/.*%%`
95			IFSUBTYPE=`echo $enableval \| sed s%.*/%%`
96			]
97			)
98
99	pcg	1.1	dnl Check and set OS
100	pcg	1.8	AC_MSG_CHECKING(for kernel networking interface type)
101	pcg	1.1
102	pcg	1.8	if test "x$IFTYPE" = "x"; then
103			case $target_os in
104			linux)
105			IFTYPE=native
106			IFSUBTYPE=linux
107			AC_DEFINE(HAVE_LINUX, 1, [Linux])
108			;;
109			freebsd)
110			IFTYPE=tincd
111			IFSUBTYPE=freebsd
112			AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
113			;;
114			darwin)
115			IFTYPE=tincd
116			IFSUBTYPE=darwin
117			AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
118			;;
119			solaris)
120			IFTYPE=tincd
121			IFSUBTYPE=solaris
122			AC_DEFINE(HAVE_SOLARIS, 1, [Solaris/SunOS])
123			;;
124			openbsd)
125			IFTYPE=tincd
126			IFSUBTYPE=openbsd
127			AC_DEFINE(HAVE_OPENBSD, 1, [OpenBSD])
128			;;
129			netbsd)
130			IFTYPE=tincd
131			IFSUBTYPE=netbsd
132			AC_DEFINE(HAVE_NETBSD, 1, [NetBSD])
133			;;
134			cygwin)
135	pcg	1.15	IFTYPE=native
136	pcg	1.8	IFSUBTYPE=cygwin
137			AC_DEFINE(HAVE_CYGWIN, 1, [Cygwin])
138			;;
139			*)
140			AC_MSG_ERROR("Unknown operating system.")
141			;;
142			esac
143			fi
144			AC_MSG_RESULT($IFTYPE/$IFSUBTYPE)
145			AC_SUBST(IFTYPE,$IFTYPE)
146			AC_SUBST(IFSUBTYPE,$IFSUBTYPE)
147	pcg	1.19	AC_DEFINE_UNQUOTED(IFTYPE,"$IFTYPE",[kernel interface type])
148			AC_DEFINE_UNQUOTED(IFSUBTYPE,"$IFSUBTYPE",[kernel interface subtype])
149	pcg	1.1
150			AC_CACHE_SAVE
151
152			dnl Checks for libraries.
153
154			AC_LANG(C++)
155			AC_CHECK_HEADERS(ext/hash_map)
156
157			dnl Checks for header files.
158			AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h malloc.h stdint.h strings.h syslog.h unistd.h \
159	pcg	1.22	sys/file.h sys/ioctl.h sys/param.h sys/time.h netinet/in_systm.h sys/cygwin.h \
160	pcg	1.21	sys/mman.h netinet/in.h])
161	pcg	1.22	AC_CHECK_HEADERS([arpa/inet.h net/ethernet.h net/if.h netinet/ip.h netinet/tcp.h netinet/in_systm.h], [], [],
162	pcg	1.8	[
163			#include <sys/types.h>
164			#include <sys/socket.h>
165			#ifdef HAVE_NETINET_IN_H
166			# include <netinet/in.h>
167			#endif
168			#ifdef HAVE_ARPA_INET_H
169			# include <arpa/inet.h>
170			#endif
171			#ifdef HAVE_NETINET_IN_SYSTM_H
172			# include <netinet/in_systm.h>
173			#endif
174			])
175	pcg	1.1
176			dnl Checks for typedefs, structures, and compiler characteristics.
177			AC_C_CONST
178			AC_TYPE_PID_T
179			AC_TYPE_SIZE_T
180			AC_HEADER_TIME
181			AC_STRUCT_TM
182	pcg	1.10
183	pcg	1.1	AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
184			[
185	pcg	1.28	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
186			#include <sys/socket.h>]], [[socklen_t len = 42; return len;]])],[ac_cv_type_socklen_t=yes],[ac_cv_type_socklen_t=no])
187	pcg	1.1	])
188			if test $ac_cv_type_socklen_t = yes; then
189			AC_DEFINE(HAVE_SOCKLEN_T, 1, [socklen_t available])
190			fi
191
192			AC_CACHE_CHECK([for struct addrinfo], ac_cv_struct_addrinfo,
193			[
194	pcg	1.28	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
195	pcg	1.1	#include <sys/socket.h>
196	pcg	1.28	#include <netdb.h>]], [[struct addrinfo ai; ai.ai_family = AF_INET; return ai.ai_family;]])],[ac_cv_struct_addrinfo=yes],[ac_cv_struct_addrinfo=no])
197	pcg	1.1	])
198			if test $ac_cv_struct_addrinfo = yes; then
199			AC_DEFINE(HAVE_STRUCT_ADDRINFO, 1, [struct addrinfo available])
200			fi
201
202			dnl Checks for library functions.
203			AC_TYPE_SIGNAL
204
205			AC_LANG_PUSH(C)
206
207			AC_HEADER_STDC
208
209	pcg	1.11	dnl argl, could somebody catapult darwin into the 21st century???
210	pcg	1.21	AC_CHECK_FUNCS(asprintf daemon get_current_dir_name putenv select strerror strsignal strtol unsetenv mlockall)
211	pcg	1.1
212			AC_FUNC_ALLOCA
213
214			dnl Support for SunOS
215
216			AC_CHECK_FUNC(socket, [], [
217			AC_CHECK_LIB(socket, connect)
218			])
219			AC_CHECK_FUNC(gethostbyname, [], [
220			AC_CHECK_LIB(nsl, gethostbyname)
221			])
222
223			AC_LANG_POP
224
225			dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo])
226
227			AC_CACHE_SAVE
228
229			dnl These are defined in files in m4/
230			tinc_TUNTAP
231	pcg	1.15
232	pcg	1.1	tinc_OPENSSL
233	pcg	1.15	if test "x$openssl_include" != x; then
234			CXXFLAGS="$CXXFLAGS -I$openssl_include"
235			fi
236	pcg	1.1	dnl tinc_ZLIB
237
238	pcg	1.30	AC_ARG_ENABLE(static-daemon,
239			[AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)],
240			[LDFLAGS_DAEMON=-static]
241			)
242			AC_SUBST(LDFLAGS_DAEMON)
243
244	pcg	1.5	AC_ARG_ENABLE(rohc,
245	pcg	1.28	[AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)],
246	pcg	1.5	[
247			echo
248			echo "**********************************************************************"
249			echo "**********************************************************************"
250	pcg	1.25	echo "** --enable-rohc is highly experimental, do not use **************"
251	pcg	1.5	echo "**********************************************************************"
252			echo "**********************************************************************"
253			echo
254	pcg	1.25	rohc=true
255			AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support])
256	pcg	1.5	]
257			)
258
259	pcg	1.25	AM_CONDITIONAL(ROHC, test x$rohc = xtrue)
260
261	pcg	1.4	AC_ARG_ENABLE(icmp,
262	pcg	1.28	[AS_HELP_STRING(--enable-icmp,enable icmp protocol support (default disabled).)],
263	pcg	1.4	AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.])
264			)
265
266	pcg	1.2	AC_ARG_ENABLE(tcp,
267	pcg	1.28	[AS_HELP_STRING(--enable-tcp,enable tcp protocol support (default disabled).)],
268	pcg	1.2	AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.])
269			)
270
271	pcg	1.26	AC_ARG_ENABLE(dns,
272	pcg	1.28	[AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (DOES NOT WORK).)],
273	pcg	1.34	[
274			AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])])
275			AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])])
276
277			AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
278			]
279	pcg	1.26	)
280
281	pcg	1.3	AC_ARG_ENABLE(http-proxy,
282	pcg	1.28	[AS_HELP_STRING(--enable-http-proxy,enable http proxy connect support (default disabled).)],
283	pcg	1.3	AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.])
284			)
285
286	pcg	1.30	HMAC=12
287	pcg	1.1	AC_ARG_ENABLE(hmac-length,
288	pcg	1.30	[AS_HELP_STRING(--enable-hmac-length=BYTES,[
289			use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])],
290	pcg	1.1	HMAC=$enableval
291			)
292			AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.])
293
294	pcg	1.30	RAND=8
295	pcg	1.1	AC_ARG_ENABLE(rand-length,
296	pcg	1.30	[AS_HELP_STRING(--enable-rand-length=BYTES,
297			[use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])],
298	pcg	1.1	RAND=$enableval
299			)
300			AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.])
301
302	pcg	1.30	MTU=1500
303	pcg	1.1	AC_ARG_ENABLE(mtu,
304	pcg	1.28	[AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)],
305	pcg	1.1	MTU=$enableval
306			)
307			AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.])
308
309			COMPRESS=1
310			AC_ARG_ENABLE(compression,
311	pcg	1.28	[AS_HELP_STRING(--disable-compression,Disable compression support.)],
312	pcg	1.1	if test "x$enableval" = xno; then
313			COMPRESS=0
314			fi
315			)
316			AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.])
317
318			CIPHER=bf_cbc
319			AC_ARG_ENABLE(cipher,
320	pcg	1.30	[AS_HELP_STRING(--enable-cipher,[
321			Select the symmetric cipher (default "bf").
322			Must be one of "bf" (blowfish), "aes-128" (rijndael), "aes-192" or "aes-256".])],
323	pcg	1.1	if test "x$enableval" = xbf ; then CIPHER=bf_cbc ; fi
324			if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi
325			if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi
326			if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi
327			)
328			AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.])
329
330			DIGEST=sha1
331			AC_ARG_ENABLE(digest,
332	pcg	1.30	[AS_HELP_STRING(--enable-digest,[
333			Select the digets algorithm to use (default "sha1"). Must be one of
334			"sha1", "ripemd160", "md5" or "md4" (insecure).])],
335	pcg	1.1	if test "x$enableval" = xsha1 ; then DIGEST=sha1 ; fi
336			if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi
337	pcg	1.9	if test "x$enableval" = xmd5 ; then DIGEST=md5 ; fi
338	pcg	1.1	if test "x$enableval" = xmd4 ; then DIGEST=md4 ; fi
339			)
340			AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.])
341
342			if $CXX -v --help 2>&1 \| grep -q fno-rtti; then
343			CXXFLAGS="$CXXFLAGS -fno-rtti"
344			fi
345
346			if $CXX -v --help 2>&1 \| grep -q fexceptions; then
347			CXXFLAGS="$CXXFLAGS -fno-exceptions"
348			fi
349
350	pcg	1.20	dnl if $CXX -v --help 2>&1 \| grep -q ffunction-sections; then
351			dnl CXXFLAGS="$CXXFLAGS -ffunction-sections"
352			dnl fi
353			dnl
354			dnl if $LD -v --help 2>&1 \| grep -q gc-sections; then
355			dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections"
356			dnl fi
357	pcg	1.1
358			AC_CONFIG_COMMANDS_POST([
359
360			echo
361			echo "***"
362			echo "*** Configuration Summary"
363			echo "***"
364	pcg	1.8	echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE"
365	pcg	1.1	echo "*** Cipher used: $CIPHER"
366			echo "*** Digest used: $DIGEST"
367			echo "*** HMAC length: $HMAC"
368			echo "*** RAND used: $RAND"
369			echo "*** Max. MTU: $MTU"
370			echo "*** Compression: $COMPRESS"
371	pcg	1.24
372			if test "x$DIGEST" = xmd4; then
373	pcg	1.1	echo "***"
374	pcg	1.24	echo "*** WARNING: The digest you have chosen ($DIGEST) is known to be insecure"
375			fi
376	pcg	1.8
377	pcg	1.24	if test "$HMAC" -lt 12; then
378			echo "***"
379	pcg	1.26	echo "*** WARNING: The hmac length you have chosen ($HMAC) is probably insecure"
380	pcg	1.24	fi
381
382			if test "$RAND" -lt 8; then
383	pcg	1.8	echo "***"
384	pcg	1.26	echo "*** WARNING: The random prefix you have chosen ($RAND) is probably insecure"
385	pcg	1.8	fi
386	pcg	1.24
387			echo "***"
388	pcg	1.8
389	pcg	1.1	echo
390
391			])
392
393			AC_SUBST(INCLUDES)
394
395	pcg	1.28	AC_CONFIG_FILES([Makefile po/Makefile.in
396	pcg	1.1	src/Makefile
397			doc/Makefile
398			lib/Makefile
399			m4/Makefile
400	pcg	1.28	])
401			AC_OUTPUT