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Comparing gvpe/configure.ac (file contents):
Revision 1.38 by pcg, Fri Mar 18 02:32:20 2005 UTC vs.
Revision 1.63 by root, Thu Jul 18 13:35:19 2013 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/gvpe.C]) 5AC_CONFIG_SRCDIR([src/gvpe.C])
6AC_CANONICAL_TARGET 6AC_CANONICAL_TARGET
7AM_INIT_AUTOMAKE(gvpe, 1.8) 7AM_INIT_AUTOMAKE(gvpe, 2.25)
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__
… …
46#else 46#else
47# define CLOCALE <locale.h> 47# define CLOCALE <locale.h>
48#endif 48#endif
49]) 49])
50 50
51dnl Include the macros from the m4/ directory
52AM_ACLOCAL_INCLUDE(m4)
53
54AM_GNU_GETTEXT([external]) 51AM_GNU_GETTEXT([external])
55AM_GNU_GETTEXT_VERSION(0.11.5) 52AM_GNU_GETTEXT_VERSION(0.11.5)
56 53
57# Enable GNU extensions. 54# Enable GNU extensions.
58# Define this here, not in acconfig's @TOP@ section, since definitions 55# Define this here, not in acconfig's @TOP@ section, since definitions
59# 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.
60AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extenstions]) 57AC_DEFINE([_GNU_SOURCE], 1, [Enable GNU extensions])
61 58
62# do NOT define POSIX_SOURCE, sicne this clashes with many BSDs 59# do NOT define POSIX_SOURCE, sicne this clashes with many BSDs
63dnl AC_DEFINE([_POSIX_SOURCE], 1, [Enable POSIX 1003.1 extensions]) 60dnl AC_DEFINE([_POSIX_SOURCE], 1, [Enable POSIX 1003.1 extensions])
64dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions]) 61dnl AC_DEFINE([_XOPEN_SOURCE], 500, [Enable XOPEN extensions])
65 62
66ALL_LINGUAS="" 63ALL_LINGUAS=""
67 64
68dnl Checks for programs. 65dnl Checks for programs.
69AC_PROG_CC
70AC_PROG_CPP 66AC_PROG_CPP
71AC_PROG_CXX 67AC_PROG_CXX
72AC_PROG_GCC_TRADITIONAL 68AC_PROG_GCC_TRADITIONAL
73AC_PROG_AWK 69AC_PROG_AWK
74AC_PROG_INSTALL 70AC_PROG_INSTALL
… …
77AC_PROG_RANLIB 73AC_PROG_RANLIB
78 74
79AC_ARG_ENABLE(iftype, 75AC_ARG_ENABLE(iftype,
80 [AS_HELP_STRING(--enable-iftype=TYPE/SUBTYPE, 76 [AS_HELP_STRING(--enable-iftype=TYPE/SUBTYPE,
81 Use kernel/net device interface TYPE/SUBTYPE. 77 Use kernel/net device interface TYPE/SUBTYPE.
82 Working combinations are: 78 Working combinations are (see doc/gvpe.osdep.5.pod):
83 "native/linux" 79 "native/linux"
84 "tincd/linux" 80 "tincd/linux"
81 "tincd/netbsd"
85 "tincd/freebsd" 82 "tincd/freebsd"
86 "tincd/openbsd" 83 "tincd/openbsd"
84 "native/darwin"
87 "tincd/darwin" 85 "tincd/darwin"
88 "native/cygwin"; 86 "native/cygwin";
89 Untested combinations are: 87 Untested combinations are:
90 "tincd/netbsd" 88 "tincd/bsd"
91 "tincd/solaris" 89 "tincd/solaris"
92 "tincd/mingw" 90 "tincd/mingw"
93 "tincd/raw_socket" 91 "tincd/raw_socket"
94 "tincd/uml_socket"; 92 "tincd/uml_socket";
95 Broken combinations are: 93 Broken combinations are:
… …
116 IFTYPE=tincd 114 IFTYPE=tincd
117 IFSUBTYPE=freebsd 115 IFSUBTYPE=freebsd
118 AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD]) 116 AC_DEFINE(HAVE_FREEBSD, 1, [FreeBSD])
119 ;; 117 ;;
120 *darwin*) 118 *darwin*)
121 IFTYPE=tincd 119 IFTYPE=native
122 IFSUBTYPE=darwin 120 IFSUBTYPE=darwin
123 AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)]) 121 AC_DEFINE(HAVE_DARWIN, 1, [Darwin (MacOS/X)])
124 ;; 122 ;;
125 *solaris*) 123 *solaris*)
126 IFTYPE=tincd 124 IFTYPE=tincd
… …
156AC_CACHE_SAVE 154AC_CACHE_SAVE
157 155
158dnl Checks for libraries. 156dnl Checks for libraries.
159 157
160AC_LANG(C++) 158AC_LANG(C++)
161AC_CHECK_HEADERS(ext/hash_map clocale) 159AC_CHECK_HEADERS(tr1/unordered_map ext/hash_map clocale)
162 160
163dnl Checks for header files. 161dnl Checks for header files.
164AC_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 \
165 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 \
166 sys/mman.h netinet/in.h]) 164 sys/mman.h netinet/in.h])
… …
224]) 222])
225AC_CHECK_FUNC(gethostbyname, [], [ 223AC_CHECK_FUNC(gethostbyname, [], [
226 AC_CHECK_LIB(nsl, gethostbyname) 224 AC_CHECK_LIB(nsl, gethostbyname)
227]) 225])
228 226
227dnl libev support
228m4_include([libev/libev.m4])
229
229AC_LANG_POP 230AC_LANG_POP
230 231
231dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo]) 232dnl AC_CHECK_FUNCS([freeaddrinfo gai_strerror getaddrinfo getnameinfo])
232 233
233AC_CACHE_SAVE 234AC_CACHE_SAVE
… …
239if test "x$openssl_include" != x; then 240if test "x$openssl_include" != x; then
240 CXXFLAGS="$CXXFLAGS -I$openssl_include" 241 CXXFLAGS="$CXXFLAGS -I$openssl_include"
241fi 242fi
242dnl tinc_ZLIB 243dnl tinc_ZLIB
243 244
245AC_ARG_ENABLE(threads,
246 [AS_HELP_STRING(--enable-threads,try to use threads for long-running asynchronous operations (default enabled).)],
247 [try_threads=$enableval],
248 [try_threads=yes]
249)
250
251if test "x$try_threads" = xyes; then
252 AC_CHECK_HEADER(pthread.h,[
253 LIBS="$LIBS -lpthread"
254 AC_COMPILE_IFELSE(
255 [AC_LANG_PROGRAM([#include <pthread.h>], [pthread_t id; pthread_create (&id, 0, 0, 0);])],
256 [AC_DEFINE_UNQUOTED(ENABLE_PTHREADS, 1, [POSIX thread support.])]
257 )
258 ])
259fi
260
244AC_ARG_ENABLE(static-daemon, 261AC_ARG_ENABLE(static-daemon,
245 [AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)], 262 [AS_HELP_STRING(--enable-static-daemon,enable statically linked daemon.)],
246 [LDFLAGS_DAEMON=-static] 263 [LDFLAGS_DAEMON=-static]
247) 264)
248AC_SUBST(LDFLAGS_DAEMON) 265AC_SUBST(LDFLAGS_DAEMON)
249 266
250AC_ARG_ENABLE(rohc, 267dnl AC_ARG_ENABLE(rohc,
251 [AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)], 268dnl [AS_HELP_STRING(--enable-rohc,enable robust header compression (rfc3095).)],
252 [ 269dnl [
253 echo 270dnl echo
254 echo "**********************************************************************" 271dnl echo "**********************************************************************"
255 echo "**********************************************************************" 272dnl echo "**********************************************************************"
256 echo "**** --enable-rohc is highly experimental, do not use ****************" 273dnl echo "**** --enable-rohc is highly experimental, do not use ****************"
257 echo "**********************************************************************" 274dnl echo "**********************************************************************"
258 echo "**********************************************************************" 275dnl echo "**********************************************************************"
259 echo 276dnl echo
260 rohc=true 277dnl rohc=true
261 AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support]) 278dnl AC_DEFINE_UNQUOTED(ENABLE_ROHC, 1, [ROHC support])
262 ] 279dnl ]
263) 280dnl )
264 281
265AM_CONDITIONAL(ROHC, test x$rohc = xtrue) 282AM_CONDITIONAL(ROHC, test x$rohc = xtrue)
266 283
284dnl AC_ARG_ENABLE(bridging,
285dnl [AS_HELP_STRING(--enable-bridging,enable bridging support (default disabled).)],
286dnl AC_DEFINE_UNQUOTED(ENABLE_BRIDGING, 1, [bridging support.])
287dnl )
288
289ICMP=1
267AC_ARG_ENABLE(icmp, 290AC_ARG_ENABLE(icmp,
268 [AS_HELP_STRING(--enable-icmp,enable icmp protocol support (default disabled).)], 291 [AS_HELP_STRING(--disable-icmp,enable icmp protocol support (default enabled).)],
292 if test "x$enableval" = xno; then
293 ICMP=0
294 fi
295)
296if test "x$ICMP" = x1; then
269 AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.]) 297 AC_DEFINE_UNQUOTED(ENABLE_ICMP, 1, [ICMP protocol support.])
270) 298fi
271 299
300TCP=1
272AC_ARG_ENABLE(tcp, 301AC_ARG_ENABLE(tcp,
273 [AS_HELP_STRING(--enable-tcp,enable tcp protocol support (default disabled).)], 302 [AS_HELP_STRING(--disable-tcp,enable tcp protocol support (default enabled).)],
303 if test "x$enableval" = xno; then
304 TCP=0
305 fi
306)
307if test "x$TCP" = x1; then
274 AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.]) 308 AC_DEFINE_UNQUOTED(ENABLE_TCP, 1, [TCP protocol support.])
309fi
310
311HTTP=1
312AC_ARG_ENABLE(http-proxy,
313 [AS_HELP_STRING(--disable-http-proxy,enable http proxy connect support (default enabled).)],
314 if test "x$enableval" = xno; then
315 HTTP=0
316 fi
275) 317)
318if test "x$HTTP" = x1; then
319 AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.])
320fi
276 321
277AC_ARG_ENABLE(dns, 322AC_ARG_ENABLE(dns,
278 [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (DOES NOT WORK).)], 323 [AS_HELP_STRING(--enable-dns,enable dns tunnel protocol support (default disabled).)],
279 [ 324 [
280 AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])]) 325 AC_CHECK_HEADER(gmp.h,,[AC_MSG_ERROR([gmp.h not found, required for --enable-dns])])
281 AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])]) 326 AC_CHECK_LIB(gmp,main,,[AC_MSG_ERROR([libgmp not found, required for --enable-dns])])
282 327
283 AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.]) 328 AC_DEFINE_UNQUOTED(ENABLE_DNS, 1, [DNS tunnel protocol support.])
284 ] 329 ]
285) 330)
286 331
287AC_ARG_ENABLE(http-proxy, 332RSA=3072
288 [AS_HELP_STRING(--enable-http-proxy,enable http proxy connect support (default disabled).)], 333AC_ARG_ENABLE(rsa-length,
289 AC_DEFINE_UNQUOTED(ENABLE_HTTP_PROXY, 1, [http proxy connect support.]) 334 [AS_HELP_STRING(--enable-rsa-length=BITS,[
335 use BITS rsa keys (default 3072). Allowed values are 2048-10240.])],
336 RSA=$enableval
290) 337)
338AC_DEFINE_UNQUOTED(RSABITS, $RSA, [Size of RSA keys.])
291 339
292HMAC=12 340HMACSIZE=12
293AC_ARG_ENABLE(hmac-length, 341AC_ARG_ENABLE(hmac-length,
294 [AS_HELP_STRING(--enable-hmac-length=BYTES,[ 342 [AS_HELP_STRING(--enable-hmac-length=BYTES,[
295 use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])], 343 use a hmac of length BYTES bytes (default 12). Allowed values are 4, 8, 12, 16.])],
296 HMAC=$enableval 344 HMACSIZE=$enableval
297) 345)
298AC_DEFINE_UNQUOTED(HMACLENGTH, $HMAC, [Size of HMAC in each packet in bytes.]) 346AC_DEFINE_UNQUOTED(HMACLENGTH, $HMACSIZE, [Size of HMAC in each packet in bytes.])
299 347
300RAND=8 348RANDSIZE=12
301AC_ARG_ENABLE(rand-length, 349AC_ARG_ENABLE(rand-length,
302 [AS_HELP_STRING(--enable-rand-length=BYTES, 350 [AS_HELP_STRING(--enable-rand-length=BYTES,
303 [use BYTES bytes of extra randomness (default 8). Allowed values are 0, 4, 8.])], 351 [use BYTES bytes of extra randomness (default 12). Allowed values are 0, 4, 8, 12.])],
304 RAND=$enableval 352 RANDSIZE=$enableval
305) 353)
306AC_DEFINE_UNQUOTED(RAND_SIZE, $RAND, [Add this many bytes of randomness to each packet.]) 354AC_DEFINE_UNQUOTED(RAND_SIZE, $RANDSIZE, [Add this many bytes of randomness to each packet.])
307 355
308MTU=1500 356MTU=1500
309AC_ARG_ENABLE(mtu, 357AC_ARG_ENABLE(max-mtu,
310 [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)], 358 [AS_HELP_STRING(--enable-max-mtu=BYTES,enable mtu sizes upto BYTES bytes (default 1500). Use 9100 for jumbogram support.)],
311 MTU=$enableval 359 MTU=$enableval
312) 360)
313AC_DEFINE_UNQUOTED(MAX_MTU, $MTU + 14, [Maximum MTU supported.]) 361AC_DEFINE_UNQUOTED(MAX_MTU, ($MTU + 14), [Maximum MTU supported.])
314 362
315COMPRESS=1 363COMPRESS=1
316AC_ARG_ENABLE(compression, 364AC_ARG_ENABLE(compression,
317 [AS_HELP_STRING(--disable-compression,Disable compression support.)], 365 [AS_HELP_STRING(--disable-compression,Disable compression support.)],
318 if test "x$enableval" = xno; then 366 if test "x$enableval" = xno; then
319 COMPRESS=0 367 COMPRESS=0
320 fi 368 fi
321) 369)
322AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.]) 370AC_DEFINE_UNQUOTED(ENABLE_COMPRESSION, $COMPRESS, [Enable compression support.])
323 371
324CIPHER=bf_cbc 372CIPHER=aes_128_cbc
325AC_ARG_ENABLE(cipher, 373AC_ARG_ENABLE(cipher,
326 [AS_HELP_STRING(--enable-cipher,[ 374 [AS_HELP_STRING(--enable-cipher=CIPHER,[
327 Select the symmetric cipher (default "bf"). 375 Select the symmetric cipher (default "aes-128").
328 Must be one of "bf" (blowfish), "aes-128" (rijndael), "aes-192" or "aes-256".])], 376 Must be one of "bf" (blowfish), "aes-128" (rijndael), "aes-192", "aes-256", "camellia-128" or "camellia-256".])],
329 if test "x$enableval" = xbf ; then CIPHER=bf_cbc ; fi 377 if test "x$enableval" = xbf ; then CIPHER=bf_cbc ; fi
330 if test "x$enableval" = xaes-128; then CIPHER=aes_128_cbc; fi 378 if test "x$enableval" = xaes-128 ; then CIPHER=aes_128_cbc ; fi
331 if test "x$enableval" = xaes-192; then CIPHER=aes_192_cbc; fi 379 if test "x$enableval" = xaes-192 ; then CIPHER=aes_192_cbc ; fi
332 if test "x$enableval" = xaes-256; then CIPHER=aes_256_cbc; fi 380 if test "x$enableval" = xaes-256 ; then CIPHER=aes_256_cbc ; fi
381 if test "x$enableval" = xcamellia-128; then CIPHER=camellia_128_cbc; fi
382 if test "x$enableval" = xcamellia-256; then CIPHER=camellia_256_cbc; fi
333) 383)
334AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.]) 384AC_DEFINE_UNQUOTED(ENABLE_CIPHER, EVP_${CIPHER}, [Select the symmetric cipher to use.])
335 385
336DIGEST=sha1 386HMAC=sha1
337AC_ARG_ENABLE(digest, 387AC_ARG_ENABLE(hmac-digest,
338 [AS_HELP_STRING(--enable-digest,[ 388 [AS_HELP_STRING(--enable-hmac-digest=HMAC,[
339 Select the digets algorithm to use (default "sha1"). Must be one of 389 Select the HMAC digest algorithm to use (default "sha1"). Must be one of
340 "sha1", "ripemd160", "md5" or "md4" (insecure).])], 390 "sha512", "sha256", "sha1", "ripemd160", "whirlpool".])],
391 if test "x$enableval" = xwhirlpool; then HMAC=whirlpool; fi
392 if test "x$enableval" = xsha512 ; then HMAC=sha512 ; fi
393 if test "x$enableval" = xsha256 ; then HMAC=sha256 ; fi
341 if test "x$enableval" = xsha1 ; then DIGEST=sha1 ; fi 394 if test "x$enableval" = xsha1 ; then HMAC=sha1 ; fi
342 if test "x$enableval" = xripemd160; then DIGEST=ripemd160; fi 395 if test "x$enableval" = xripemd160; then HMAC=ripemd160; fi
396)
397AC_DEFINE_UNQUOTED(ENABLE_HMAC, EVP_${HMAC}, [Select the HMAC digest algorithm to use.])
398
399AUTH=sha512
400AC_ARG_ENABLE(auth-digest,
401 [AS_HELP_STRING(--enable-auth-digest=DIGEST,[
402 Select the hmac algorithm to use (default "sha512"). Must be one of
403 "sha512", "sha256", "whirlpool".])],
404 if test "x$enableval" = xwhirlpool; then AUTH=whirlpool; fi
343 if test "x$enableval" = xmd5 ; then DIGEST=md5 ; fi 405 if test "x$enableval" = xsha512 ; then AUTH=sha512 ; fi
344 if test "x$enableval" = xmd4 ; then DIGEST=md4 ; fi 406 if test "x$enableval" = xsha256 ; then AUTH=sha256 ; fi
345) 407)
346AC_DEFINE_UNQUOTED(ENABLE_DIGEST, EVP_${DIGEST}, [Select the digest algorithm to use.]) 408AC_DEFINE_UNQUOTED(ENABLE_AUTH, EVP_${AUTH}, [Select the auth digest algorithm to use.])
347 409
348if $CXX -v --help 2>&1 | grep -q fno-rtti; then 410if $CXX -v --help 2>&1 | grep -q fno-rtti; then
349 CXXFLAGS="$CXXFLAGS -fno-rtti" 411 CXXFLAGS="$CXXFLAGS -fno-rtti"
350fi 412fi
351 413
352if $CXX -v --help 2>&1 | grep -q fexceptions; then 414#if $CXX -v --help 2>&1 | grep -q fexceptions; then
353 CXXFLAGS="$CXXFLAGS -fno-exceptions" 415# CXXFLAGS="$CXXFLAGS -fno-exceptions"
354fi 416#fi
417
418LIBS="$EXTRA_LIBS $LIBS"
355 419
356dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then 420dnl if $CXX -v --help 2>&1 | grep -q ffunction-sections; then
357dnl CXXFLAGS="$CXXFLAGS -ffunction-sections" 421dnl CXXFLAGS="$CXXFLAGS -ffunction-sections"
358dnl fi 422dnl fi
359dnl 423dnl
360dnl if $LD -v --help 2>&1 | grep -q gc-sections; then 424dnl if $LD -v --help 2>&1 | grep -q gc-sections; then
361dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections" 425dnl LDFLAGS="$LDFLAGS -Wl,--gc-sections"
362dnl fi 426dnl fi
363 427
364AC_CONFIG_COMMANDS_POST([
365
366echo
367echo "***"
368echo "*** Configuration Summary"
369echo "***"
370echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE"
371echo "*** Cipher used: $CIPHER"
372echo "*** Digest used: $DIGEST"
373echo "*** HMAC length: $HMAC"
374echo "*** RAND used: $RAND"
375echo "*** Max. MTU: $MTU"
376echo "*** Compression: $COMPRESS"
377
378if test "x$DIGEST" = xmd4; then
379echo "***"
380echo "*** WARNING: The digest you have chosen ($DIGEST) is known to be insecure"
381fi
382
383if test "$HMAC" -lt 12; then
384echo "***"
385echo "*** WARNING: The hmac length you have chosen ($HMAC) is probably insecure"
386fi
387
388if test "$RAND" -lt 8; then
389echo "***"
390echo "*** WARNING: The random prefix you have chosen ($RAND) is probably insecure"
391fi
392
393echo "***"
394
395echo
396
397])
398
399AC_SUBST(INCLUDES) 428AC_SUBST(INCLUDES)
400 429
401AC_CONFIG_FILES([Makefile po/Makefile.in 430AC_CONFIG_FILES([Makefile po/Makefile.in
402src/Makefile 431src/Makefile
403doc/Makefile 432doc/Makefile
404lib/Makefile 433lib/Makefile
405m4/Makefile 434m4/Makefile
406]) 435])
407AC_OUTPUT 436AC_OUTPUT
437
438echo
439echo "***"
440echo "*** Configuration Summary"
441echo "***"
442echo "*** Kernel Iface: $IFTYPE/$IFSUBTYPE"
443echo "*** RSA size: $RSA"
444echo "*** Cipher used: $CIPHER"
445echo "*** Digest used: $DIGEST"
446echo "*** Authdigest: $AUTH"
447echo "*** HMAC length: $HMAC"
448echo "*** RAND used: $RAND"
449echo "*** Max. MTU: $MTU"
450
451echo "***"
452echo "*** Enable options:"
453grep ENABLE_ config.h | sed -e 's/^/*** /'
454
455if test "$HMACSIZE" -lt 12; then
456echo "***"
457echo "*** WARNING: The hmac length you have chosen ($HMACSIZE) is quite insecure"
458fi
459
460if test "$RANDSIZE" -lt 12; then
461echo "***"
462echo "*** WARNING: The random prefix you have chosen ($RANDSIZE) is probably insecure"
463fi
464
465echo "***"
466echo
467
468

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