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Comparing gvpe/configure.ac (file contents):
Revision 1.31 by pcg, Fri Jun 11 15:56:10 2004 UTC vs.
Revision 1.66 by root, Thu Oct 25 04:32:26 2018 UTC

1dnl Process this file with autoconf to produce a configure script. 1dnl Process this file with autoconf to produce a configure script.
2 2
3AC_PREREQ(2.59) 3AC_PREREQ(2.69)
4AC_INIT 4AC_INIT
5AC_CONFIG_SRCDIR([src/vped.C]) 5AC_CONFIG_SRCDIR([src/gvpe.C])
6AC_CANONICAL_TARGET 6AC_CANONICAL_TARGET
7AM_INIT_AUTOMAKE(gvpe, 1.7) 7AM_INIT_AUTOMAKE(gvpe, 3.1)
8AC_CONFIG_HEADERS([config.h]) 8AC_CONFIG_HEADERS([config.h])
9AM_MAINTAINER_MODE 9AM_MAINTAINER_MODE
10 10
11AH_TOP([ 11AH_TOP([
12#ifndef CONFIG_H__ 12#ifndef CONFIG_H__
… …
17#endif 17#endif
18 18
19]) 19])
20 20
21AH_BOTTOM([ 21AH_BOTTOM([
22typedef unsigned char u8;
23typedef signed char s8;
24
22#if __CYGWIN__ 25#if __CYGWIN__
23 26
24typedef unsigned char u8;
25typedef unsigned short u16; 27typedef unsigned short u16;
26typedef unsigned int u32; 28typedef unsigned int u32;
29typedef signed short s16;
30typedef signed int s32;
27 31
28#else 32#else
29#include <inttypes.h> 33#include <inttypes.h>
30 34
31/* old modula-2 habits */ 35/* old modula-2 habits */
32typedef unsigned char u8;
33typedef uint16_t u16; 36typedef uint16_t u16;
34typedef uint32_t u32; 37typedef uint32_t u32;
38typedef int16_t s16;
39typedef int32_t s32;
35#endif 40#endif
36 41
37#endif 42#endif
38])
39 43
40dnl Include the macros from the m4/ directory 44#if HAVE_CLOCALE
41AM_ACLOCAL_INCLUDE(m4) 45# define CLOCALE <clocale>
46#else
47# define CLOCALE <locale.h>
48#endif
49])
42 50
43AM_GNU_GETTEXT([external]) 51AM_GNU_GETTEXT([external])
44AM_GNU_GETTEXT_VERSION(0.11.5) 52AM_GNU_GETTEXT_VERSION(0.11.5)
45 53
46# Enable GNU extensions. 54# Enable GNU extensions.
47# Define this here, not in acconfig's @TOP@ section, since definitions 55# Define this here, not in acconfig's @TOP@ section, since definitions
48# in the latter don't make it into the configure-time tests. 56# in the latter don't make it into the configure-time tests.
49AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extenstions]) 57AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extensions])
50 58
51# do NOT define POSIX_SOURCE, sicne this clashes with many BSDs 59# do NOT define POSIX_SOURCE, sicne this clashes with many BSDs
52dnl AC_DEFINE([_POSIX_SOURCE], 1, [Enable POSIX 1003.1 extensions]) 60dnl AC_DEFINE([_POSIX_SOURCE], 1, [Enable POSIX 1003.1 extensions])
53dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions]) 61dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions])
54 62
55ALL_LINGUAS="" 63ALL_LINGUAS=""
56 64
57dnl Checks for programs. 65dnl Checks for programs.
58AC_PROG_CC
59AC_PROG_CPP 66AC_PROG_CPP
60AC_PROG_CXX 67AC_PROG_CXX
61AC_PROG_GCC_TRADITIONAL 68AC_PROG_GCC_TRADITIONAL
62AC_PROG_AWK 69AC_PROG_AWK
63AC_PROG_INSTALL 70AC_PROG_INSTALL
… …
66AC_PROG_RANLIB 73AC_PROG_RANLIB
67 74
68AC_ARG_ENABLE(iftype, 75AC_ARG_ENABLE(iftype,
69 [AS_HELP_STRING(--enable-iftype=TYPE/SUBTYPE, 76 [AS_HELP_STRING(--enable-iftype=TYPE/SUBTYPE,
70 Use kernel/net device interface TYPE/SUBTYPE. 77 Use kernel/net device interface TYPE/SUBTYPE.
71 Working combinations are: 78 Working combinations are (see doc/gvpe.osdep.5.pod):
72 "native/linux" 79 "native/linux"
73 "tincd/linux" 80 "tincd/linux"
81 "tincd/netbsd"
74 "tincd/freebsd" 82 "tincd/freebsd"
75 "tincd/openbsd" 83 "tincd/openbsd"
84 "native/darwin"
76 "tincd/darwin" 85 "tincd/darwin"
77 "native/cygwin"; 86 "native/cygwin";
78 Untested combinations are: 87 Untested combinations are:
79 "tincd/netbsd" 88 "tincd/bsd"
80 "tincd/solaris" 89 "tincd/solaris"
81 "tincd/mingw"; 90 "tincd/mingw"
91 "tincd/raw_socket"
92 "tincd/uml_socket";
82 Broken combinations are: 93 Broken combinations are:
83 "tincd/cygwin"; 94 "tincd/cygwin";
84 The default is to autodetect. 95 The default is to autodetect.
85 )], 96 )],
86 [ 97 [
… …
103 IFTYPE=tincd 114 IFTYPE=tincd
104 IFSUBTYPE=freebsd 115 IFSUBTYPE=freebsd
105 AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD]) 116 AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
106 ;; 117 ;;
107 *darwin*) 118 *darwin*)
108 IFTYPE=tincd 119 IFTYPE=native
109 IFSUBTYPE=darwin 120 IFSUBTYPE=darwin
110 AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)]) 121 AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
111 ;; 122 ;;
112 *solaris*) 123 *solaris*)
113 IFTYPE=tincd 124 IFTYPE=tincd
… …
143AC_CACHE_SAVE 154AC_CACHE_SAVE
144 155
145dnl Checks for libraries. 156dnl Checks for libraries.
146 157
147AC_LANG(C++) 158AC_LANG(C++)
148AC_CHECK_HEADERS(ext/hash_map) 159AC_CHECK_HEADERS(tr1/unordered_map ext/hash_map clocale)
149 160
150dnl Checks for header files. 161dnl Checks for header files.
151AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h malloc.h stdint.h strings.h syslog.h unistd.h \ 162AC_CHECK_HEADERS([fcntl.h inttypes.h limits.h malloc.h stdint.h strings.h syslog.h unistd.h \
152 sys/file.h sys/ioctl.h sys/param.h sys/time.h netinet/in_systm.h sys/cygwin.h \ 163 sys/file.h sys/ioctl.h sys/param.h sys/time.h netinet/in_systm.h sys/cygwin.h \
153 sys/mman.h netinet/in.h]) 164 sys/mman.h netinet/in.h])
… …
211]) 222])
212AC_CHECK_FUNC(gethostbyname, [], [ 223AC_CHECK_FUNC(gethostbyname, [], [
213 AC_CHECK_LIB(nsl, gethostbyname) 224 AC_CHECK_LIB(nsl, gethostbyname)
214]) 225])
215 226
227dnl libev support
228m4_include([libev/libev.m4])
229
216AC_LANG_POP 230AC_LANG_POP
217 231
218dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo]) 232dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo])
219 233
220AC_CACHE_SAVE 234AC_CACHE_SAVE
221 235
222dnl These are defined in files in m4/ 236dnl These are defined in files in m4/
223tinc_TUNTAP 237tinc_TUNTAP
224 238
225tinc_OPENSSL 239PKG_CHECK_MODULES([LIBCRYPTO], [libcrypto >= 1])
226if test "x$openssl_include" != x; then 240
227 CXXFLAGS="$CXXFLAGS -I$openssl_include" 241AC_ARG_ENABLE(threads,
242 [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)],
243 [try_threads=$enableval],
244 [try_threads=yes]
245)
246
247if test "x$try_threads" = xyes; then
248 AC_CHECK_HEADER(pthread.h,[
249 LIBS="$LIBS -lpthread"
250 AC_COMPILE_IFELSE(
251 [AC_LANG_PROGRAM([#include <pthread.h>], [pthread_t id; pthread_create (&id, 0, 0, 0);])],
252 [AC_DEFINE_UNQUOTED(ENABLE_PTHREADS, 1, [POSIX thread support.])]
253 )
254 ])
228fi 255fi
229dnl tinc_ZLIB
230 256
231AC_ARG_ENABLE(static-daemon, 257AC_ARG_ENABLE(static-daemon,
232 [AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)], 258 [AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)],
233 [LDFLAGS_DAEMON=-static] 259 [LDFLAGS_DAEMON=-static]
234) 260)
235AC_SUBST(LDFLAGS_DAEMON) 261AC_SUBST(LDFLAGS_DAEMON)
236 262
237AC_ARG_ENABLE(rohc, 263dnl AC_ARG_ENABLE(rohc,
238 [AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)], 264dnl [AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)],
265dnl [
266dnl echo
267dnl echo "**********************************************************************"
268dnl echo "**********************************************************************"
269dnl echo "**** --enable-rohc is highly experimental, do not use ****************"
270dnl echo "**********************************************************************"
271dnl echo "**********************************************************************"
272dnl echo
273dnl rohc=true
274dnl AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support])
275dnl ]
276dnl )
277
278AM_CONDITIONAL(ROHC, test x$rohc = xtrue)
279
280dnl AC_ARG_ENABLE(bridging,
281dnl [AS_HELP_STRING(--enable-bridging,enable bridging support (default disabled).)],
282dnl AC_DEFINE_UNQUOTED(ENABLE_BRIDGING, 1, [bridging support.])
283dnl )
284
285ICMP=1
286AC_ARG_ENABLE(icmp,
287 [AS_HELP_STRING(--disable-icmp,enable icmp protocol support (default enabled).)],
288 if test "x$enableval" = xno; then
289 ICMP=0
290 fi
291)
292if test "x$ICMP" = x1; then
293 AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.])
294fi
295
296TCP=1
297AC_ARG_ENABLE(tcp,
298 [AS_HELP_STRING(--disable-tcp,enable tcp protocol support (default enabled).)],
299 if test "x$enableval" = xno; then
300 TCP=0
301 fi
302)
303if test "x$TCP" = x1; then
304 AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.])
305fi
306
307HTTP=1
308AC_ARG_ENABLE(http-proxy,
309 [AS_HELP_STRING(--disable-http-proxy,enable http proxy connect support (default enabled).)],
310 if test "x$enableval" = xno; then
311 HTTP=0
312 fi
313)
314if test "x$HTTP" = x1; then
315 AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.])
316fi
317
318AC_ARG_ENABLE(dns,
319 [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (default disabled).)],
239 [ 320 [
240 echo 321 AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])])
241 echo "**********************************************************************" 322 AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])])
242 echo "**********************************************************************" 323
243 echo "**** --enable-rohc is highly experimental, do not use ****************" 324 AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
244 echo "**********************************************************************"
245 echo "**********************************************************************"
246 echo
247 rohc=true
248 AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support])
249 ] 325 ]
250) 326)
251 327
252AM_CONDITIONAL(ROHC, test x$rohc = xtrue) 328RSA=3072
253 329AC_ARG_ENABLE(rsa-length,
254AC_ARG_ENABLE(icmp, 330 [AS_HELP_STRING(--enable-rsa-length=BITS,[
255 [AS_HELP_STRING(--enable-icmp,enable icmp protocol support (default disabled).)], 331 use BITS rsa keys (default 3072). Allowed values are 2048-10240.])],
256 AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.]) 332 RSA=$enableval
257) 333)
334AC_DEFINE_UNQUOTED(RSABITS, $RSA, [Size of RSA keys.])
258 335
259AC_ARG_ENABLE(tcp,
260 [AS_HELP_STRING(--enable-tcp,enable tcp protocol support (default disabled).)],
261 AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.])
262)
263
264AC_ARG_ENABLE(dns,
265 [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (DOES NOT WORK).)],
266 AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
267)
268
269AC_ARG_ENABLE(http-proxy,
270 [AS_HELP_STRING(--enable-http-proxy,enable http proxy connect support (default disabled).)],
271 AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.])
272)
273
274HMAC=12 336HMACSIZE=12
275AC_ARG_ENABLE(hmac-length, 337AC_ARG_ENABLE(hmac-length,
276 [AS_HELP_STRING(--enable-hmac-length=BYTES,[ 338 [AS_HELP_STRING(--enable-hmac-length=BYTES,[
277 use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])], 339 use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])],
278 HMAC=$enableval 340 HMACSIZE=$enableval
279) 341)
280AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.]) 342AC_DEFINE_UNQUOTED(HMACLENGTH, $HMACSIZE, [Size of HMAC in each packet in bytes.])
281
282RAND=8
283AC_ARG_ENABLE(rand-length,
284 [AS_HELP_STRING(--enable-rand-length=BYTES,
285 [use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])],
286 RAND=$enableval
287)
288AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.])
289 343
290MTU=1500 344MTU=1500
291AC_ARG_ENABLE(mtu, 345AC_ARG_ENABLE(max-mtu,
292 [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)], 346 [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)],
293 MTU=$enableval 347 MTU=$enableval
294) 348)
295AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.]) 349AC_DEFINE_UNQUOTED(MAX_MTU, ($MTU + 14), [Maximum MTU supported.])
296 350
297COMPRESS=1 351COMPRESS=1
298AC_ARG_ENABLE(compression, 352AC_ARG_ENABLE(compression,
299 [AS_HELP_STRING(--disable-compression,Disable compression support.)], 353 [AS_HELP_STRING(--disable-compression,Disable compression support.)],
300 if test "x$enableval" = xno; then 354 if test "x$enableval" = xno; then
301 COMPRESS=0 355 COMPRESS=0
302 fi 356 fi
303) 357)
304AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.]) 358AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.])
305 359
306CIPHER=bf_cbc 360CIPHER=aes_128_ctr
307AC_ARG_ENABLE(cipher, 361AC_ARG_ENABLE(cipher,
308 [AS_HELP_STRING(--enable-cipher,[ 362 [AS_HELP_STRING(--enable-cipher=CIPHER,[
309 Select the symmetric cipher (default "bf"). 363 Select the symmetric cipher (default "aes-128").
310 Must be one of "bf" (blowfish), "aes-128" (rijndael), "aes-192" or "aes-256".])], 364 Must be one of "aes-128" (rijndael), "aes-192", or "aes-256".])],
311 if test "x$enableval" = xbf ; then CIPHER=bf_cbc ; fi 365 #if test "x$enableval" = xbf ; then CIPHER=bf_ctr ; fi
312 if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi 366 if test "x$enableval" = xaes-128 ; then CIPHER=aes_128_ctr ; fi
313 if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi 367 if test "x$enableval" = xaes-192 ; then CIPHER=aes_192_ctr ; fi
314 if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi 368 if test "x$enableval" = xaes-256 ; then CIPHER=aes_256_ctr ; fi
369 #if test "x$enableval" = xcamellia-128; then CIPHER=camellia_128_ctr; fi
370 #if test "x$enableval" = xcamellia-256; then CIPHER=camellia_256_ctr; fi
315) 371)
316AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.]) 372AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.])
317 373
318DIGEST=sha1 374HMAC=sha1
319AC_ARG_ENABLE(digest, 375AC_ARG_ENABLE(hmac-digest,
320 [AS_HELP_STRING(--enable-digest,[ 376 [AS_HELP_STRING(--enable-hmac-digest=HMAC,[
321 Select the digets algorithm to use (default "sha1"). Must be one of 377 Select the HMAC digest algorithm to use (default "sha1"). Must be one of
322 "sha1", "ripemd160", "md5" or "md4" (insecure).])], 378 "sha512", "sha256", "sha1", "ripemd160", "whirlpool".])],
379 if test "x$enableval" = xwhirlpool; then HMAC=whirlpool; fi
380 if test "x$enableval" = xsha512 ; then HMAC=sha512 ; fi
381 if test "x$enableval" = xsha256 ; then HMAC=sha256 ; fi
323 if test "x$enableval" = xsha1 ; then DIGEST=sha1 ; fi 382 if test "x$enableval" = xsha1 ; then HMAC=sha1 ; fi
324 if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi 383 if test "x$enableval" = xripemd160; then HMAC=ripemd160; fi
384)
385AC_DEFINE_UNQUOTED(ENABLE_HMAC, EVP_${HMAC}, [Select the HMAC digest algorithm to use.])
386
387AUTH=sha512
388AC_ARG_ENABLE(auth-digest,
389 [AS_HELP_STRING(--enable-auth-digest=DIGEST,[
390 Select the hmac algorithm to use (default "sha512"). Must be one of
391 "sha512", "sha256", "whirlpool".])],
392 if test "x$enableval" = xwhirlpool; then AUTH=whirlpool; fi
325 if test "x$enableval" = xmd5 ; then DIGEST=md5 ; fi 393 if test "x$enableval" = xsha512 ; then AUTH=sha512 ; fi
326 if test "x$enableval" = xmd4 ; then DIGEST=md4 ; fi 394 if test "x$enableval" = xsha256 ; then AUTH=sha256 ; fi
327) 395)
328AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.]) 396AC_DEFINE_UNQUOTED(ENABLE_AUTH, EVP_${AUTH}, [Select the auth digest algorithm to use.])
329 397
330if $CXX -v --help 2>&1 | grep -q fno-rtti; then 398if $CXX -v --help 2>&1 | grep -q fno-rtti; then
331 CXXFLAGS="$CXXFLAGS -fno-rtti" 399 CXXFLAGS="$CXXFLAGS -fno-rtti"
332fi 400fi
333 401
334if $CXX -v --help 2>&1 | grep -q fexceptions; then 402#if $CXX -v --help 2>&1 | grep -q fexceptions; then
335 CXXFLAGS="$CXXFLAGS -fno-exceptions" 403# CXXFLAGS="$CXXFLAGS -fno-exceptions"
336fi 404#fi
405
406LIBS="$EXTRA_LIBS $LIBS"
337 407
338dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then 408dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then
339dnl CXXFLAGS="$CXXFLAGS -ffunction-sections" 409dnl CXXFLAGS="$CXXFLAGS -ffunction-sections"
340dnl fi 410dnl fi
341dnl 411dnl
342dnl if $LD -v --help 2>&1 | grep -q gc-sections; then 412dnl if $LD -v --help 2>&1 | grep -q gc-sections; then
343dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections" 413dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections"
344dnl fi 414dnl fi
345 415
346AC_CONFIG_COMMANDS_POST([ 416AC_SUBST(INCLUDES)
417
418AC_CONFIG_FILES([Makefile po/Makefile.in
419src/Makefile
420doc/Makefile
421lib/Makefile
422m4/Makefile
423])
424AC_OUTPUT
347 425
348echo 426echo
349echo "***" 427echo "***"
350echo "*** Configuration Summary" 428echo "*** Configuration Summary"
351echo "***" 429echo "***"
352echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE" 430echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE"
431echo "*** RSA size: $RSA"
353echo "*** Cipher used: $CIPHER" 432echo "*** Cipher used: $CIPHER"
354echo "*** Digest used: $DIGEST" 433echo "*** Digest used: $DIGEST"
434echo "*** Authdigest: $AUTH"
355echo "*** HMAC length: $HMAC" 435echo "*** HMAC length: $HMAC"
356echo "*** RAND used: $RAND"
357echo "*** Max. MTU: $MTU" 436echo "*** Max. MTU: $MTU"
358echo "*** Compression: $COMPRESS"
359 437
360if test "x$DIGEST" = xmd4; then
361echo "***" 438echo "***"
362echo "*** WARNING: The digest you have chosen ($DIGEST) is known to be insecure" 439echo "*** Enable options:"
363fi 440grep ENABLE_ config.h | sed -e 's/^/*** /'
364 441
365if test "$HMAC" -lt 12; then 442if test "$HMACSIZE" -lt 12; then
366echo "***" 443echo "***"
367echo "*** WARNING: The hmac length you have chosen ($HMAC) is probably insecure" 444echo "*** WARNING: The hmac length you have chosen ($HMACSIZE) is quite insecure"
368fi 445fi
369 446
370if test "$RAND" -lt 8; then
371echo "***" 447echo "***"
372echo "*** WARNING: The random prefix you have chosen ($RAND) is probably insecure"
373fi
374
375echo "***"
376
377echo 448echo
378 449
379]) 450if pkg-config --exists 'libcrypto >= 1.1 libcrypto < 2.0'; then
451 cat <<EOF
452@<:@33m
453***
454*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING
455***
456*** You seem to configure gvpe with OpenSSL 1.1 or newer.
457*** While this probably compiles, please note that this is not only
458*** unsupported, but also discouraged.
459***
460*** It is recommended to use either OpenSSL 1.0, as long as that is still
461*** supported, or LibreSSL (https://www.libressl.org/).
462***
463*** This is not a political issue - while porting GVPE to the newer
464*** OpenSSL 1.1 API, I encountered two incompatible API changes that were
465*** not documented, were not caught while compiling but caused security
466*** issues. When reported, the reaction of the OpenSSL developers was to
467*** update the documentation.
468***
469*** As a result, I lost all confidence in the ability and desire of
470*** OpenSSL developers to create a safe API, and would highly recommend
471*** switching to LibreSSL which explicitly avoids such braking changes.
472***
473*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING
474***
475*** Again, do not use OpenSSL 1.1 and complain if stuff breaks.
476*** You have been warned, but your choice is respected.
477***
478@<:@0m
380 479
381AC_SUBST(INCLUDES) 480EOF
481fi
382 482
383AC_CONFIG_FILES([Makefile po/Makefile.in 483
384src/Makefile
385src/rohc/Makefile
386doc/Makefile
387lib/Makefile
388m4/Makefile
389])
390AC_OUTPUT

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