configure: Add --with-libpulse=PREFIX
[oweals/gnunet.git] / configure.ac
1 # This file is part of GNUnet.
2 # (C) 2001--2019 GNUnet e.V.
3 #
4 # GNUnet is free software: you can redistribute it and/or modify it
5 # under the terms of the GNU Affero General Public License as published
6 # by the Free Software Foundation, either version 3 of the License,
7 # or (at your option) any later version.
8 #
9 # GNUnet is distributed in the hope that it will be useful, but
10 # WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 # Affero General Public License for more details.
13 #
14 # You should have received a copy of the GNU Affero General Public License
15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
16 #
17 # SPDX-License-Identifier: AGPL3.0-or-later
18 #
19 # Process this file with autoconf to produce a configure script.
20 #
21 #
22 AC_PREREQ(2.61)
23 # Checks for programs.
24 AC_INIT([gnunet], [0.11.6], [bug-gnunet@gnu.org])
25 AC_CONFIG_AUX_DIR([build-aux])
26
27 # check for legacy option that is no longer supported (#5627) and fail hard
28 AC_ARG_WITH(nssdir,
29    [  --with-nssdir=DIR    legacy switch, no longer supported, do not use],
30    [AC_MSG_RESULT([$with_nssdir])
31     AS_CASE([$with_nssdir],
32       [no],[],
33       [AC_MSG_ERROR([--with-nssdir is no longer supported])])
34    ])
35
36 AC_CANONICAL_TARGET
37 AC_CANONICAL_HOST
38 AC_CANONICAL_SYSTEM
39 AM_INIT_AUTOMAKE
40 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])], [AM_DEFAULT_VERBOSITY=1 AC_SUBST(AM_DEFAULT_VERBOSITY)])
41 AC_CONFIG_HEADERS([gnunet_config.h])
42 AH_TOP([#define _GNU_SOURCE  1])
43 AC_CONFIG_MACRO_DIR([m4])
44 AC_PROG_AWK
45 AC_PROG_CC_C99
46 AC_PROG_OBJC
47 AC_PROG_INSTALL
48 AC_PROG_LN_S
49 AC_PROG_MAKE_SET
50 AM_PROG_CC_C_O
51 LT_INIT([disable-static dlopen win32-dll])
52 AC_SUBST(MKDIR_P)
53
54 # allow for different autotools
55 AS_AUTOTOOLS_ALTERNATE
56
57 # large file support
58 AC_SYS_LARGEFILE
59 AC_FUNC_FSEEKO
60
61
62 CFLAGS="-Wall $CFLAGS"
63 AC_MSG_CHECKING(whether cc can use -fno-strict-aliasing)
64 # use '-fno-strict-aliasing', but only if the compiler can take it
65 AS_IF([$CC -fno-strict-aliasing -S -o /dev/null -xc /dev/null >/dev/null 2>&1],
66  [CFLAGS="-fno-strict-aliasing $CFLAGS"])
67
68 # A helper which allows us to check cflags if compiler
69 AC_DEFUN([CC_CHECK_CFLAGS_SILENT], [
70   AC_CACHE_VAL(AS_TR_SH([cc_cv_cflags_$1]),
71     [ac_save_CFLAGS="$CFLAGS"
72      CFLAGS="$CFLAGS $1 -Werror"
73      AC_LINK_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
74        [eval "AS_TR_SH([cc_cv_cflags_$1])='yes'"],
75        [eval "AS_TR_SH([cc_cv_cflags_$1])='no'"])
76      CFLAGS="$ac_save_CFLAGS"
77     ])
78
79   AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_$1])[ = xyes],
80     [$2], [$3])
81 ])
82
83
84 # CC_CHECK_CFLAG_APPEND(FLAG, [action-if-found], [action-if-not-found])
85 # Check for CFLAG and appends them to CFLAGS if supported
86 AC_DEFUN([CC_CHECK_CFLAG_APPEND], [
87   AC_CACHE_CHECK([if $CC supports -Wno-$1 flag],
88     AS_TR_SH([cc_cv_cflags_-W$1]),
89     CC_CHECK_CFLAGS_SILENT([-W$1]) #gcc is stupid. It does not fail with the -W-no option for backwards compat but then shows the error "in case something goes wrong".
90   )
91
92   AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_-W$1])[ = xyes],
93     [CFLAGS="$CFLAGS -Wno-$1"; $2], [$3])
94 ])
95
96
97 # We make heavy use of this, llvm/gcc and gcc-9 give warnings so disable.
98 CC_CHECK_CFLAG_APPEND([address-of-packed-member])
99
100 # Use Linux interface name unless the OS has a different preference
101 DEFAULT_INTERFACE="\"eth0\""
102
103 funcstocheck="getnameinfo gethostname gethostbyname gethostbyaddr getaddrinfo getaddrinfo_a"
104
105 # Srcdir in a form that native compiler understands (i.e. DOS path on W32)
106 native_srcdir=$srcdir
107
108 OLD_LDFLAGS="$LDFLAGS"
109 LDFLAGS="$LDFLAGS -Wl,--unresolved-symbols=report-all"
110
111 # Check system type
112 AS_CASE(["$host_os"],
113   [*darwin* | *rhapsody* | *macosx*],[
114      AC_DEFINE_UNQUOTED(DARWIN,1,[This is an Apple Darwin system])
115      CPPFLAGS="-D_APPLE_C_SOURCE $CPPFLAGS"
116      CFLAGS="-fno-common $CFLAGS"
117      LDFLAGS="$OLD_LDFLAGS"
118      AC_MSG_WARN([WARNING: The VPN application cannot be compiled on your OS])
119      AC_CHECK_LIB(intl, gettext)
120      build_target="darwin"
121      DEFAULT_INTERFACE="\"en0\""
122      LIBPREFIX=
123      DLLDIR=lib
124      UNIXONLY="#"
125   ],
126   [linux*],[
127      AC_DEFINE_UNQUOTED(LINUX,1,[This is a Linux kernel])
128      build_target="linux"
129      LIBPREFIX=
130      DLLDIR=lib
131      UNIXONLY="#"
132      AC_PATH_XTRA
133   ],
134   [*freebsd*],[
135      AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
136      AC_DEFINE_UNQUOTED(FREEBSD,1,[This is a FreeBSD system])
137      CFLAGS="-D_THREAD_SAFE $CFLAGS"
138      build_target="freebsd"
139      LIBPREFIX=
140      DLLDIR=lib
141      UNIXONLY="#"
142   ],
143   [*openbsd*],[
144      AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
145      AC_DEFINE_UNQUOTED(OPENBSD,1,[This is an OpenBSD system])
146      LIBS=`echo $LIBS | sed -e "s/-ldl//"`
147      build_target="openbsd"
148      LIBPREFIX=
149      DLLDIR=lib
150      UNIXONLY="#"
151   ],
152   [*netbsd*],[
153      AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
154      AC_DEFINE_UNQUOTED(NETBSD,1,[This is a NetBSD system])
155      build_target="netbsd"
156      LIBPREFIX=
157      DLLDIR=lib
158      UNIXONLY="#"
159   ],
160   [*solaris*],[
161      AC_DEFINE_UNQUOTED(SOLARIS,1,[This is a Solaris system])
162      AC_DEFINE_UNQUOTED(_REENTRANT,1,[Need with solaris or errno doesnt work])
163      AC_CHECK_LIB(resolv, res_init)
164      AC_CHECK_LIB(rt, nanosleep)
165      build_target="solaris"
166      LIBPREFIX=
167      DLLDIR=lib
168      UNIXONLY="#"
169   ],
170   [*arm-linux*],[
171      AC_DEFINE_UNQUOTED(LINUX,1,[This is a Linux kernel])
172      CFLAGS="-D_REENTRANT -fPIC -pipe $CFLAGS"
173      build_target="linux"
174      LIBPREFIX=
175      DLLDIR=lib
176      UNIXONLY="#"
177   ],
178   [gnu*],[
179      AC_DEFINE_UNQUOTED(GNU,1,[This is a GNU system])
180      build_target="gnu"
181      UNIXONLY="#"
182   ],
183   [
184      AC_MSG_RESULT(Unrecognised OS $host_os)
185      AC_DEFINE_UNQUOTED(OTHEROS,1,[Some strange OS])
186      UNIXONLY=""
187 ])
188 AC_DEFINE_UNQUOTED([GNUNET_DEFAULT_INTERFACE], $DEFAULT_INTERFACE, [This should be the default choice for the name of the first network interface])
189 AC_SUBST(DEFAULT_INTERFACE)
190
191 # Disable TCP-based IPC on systems that support UNIX domain
192 # sockets in default configuratin:
193 AC_SUBST(UNIXONLY)
194
195
196 AC_MSG_CHECKING([for build target])
197 AM_CONDITIONAL(DARWIN,  test "$build_target" = "darwin")
198 AM_CONDITIONAL(SOLARIS, test "$build_target" = "solaris")
199 AM_CONDITIONAL(XNETBSD, test "$build_target" = "netbsd")
200 AM_CONDITIONAL(XFREEBSD, test "$build_target" = "freebsd")
201 AM_CONDITIONAL(OPENBSD, test "$build_target" = "openbsd")
202 AM_CONDITIONAL(LINUX, test "$build_target" = "linux")
203 AM_CONDITIONAL(GNU, test "$build_target" = "gnu")
204
205 AC_MSG_RESULT([$build_target])
206 AC_SUBST(build_target)
207 AM_CONDITIONAL([am__fastdepOBJC], false)
208 AC_UNALIGNED_64_ACCESS
209
210 # some other checks for standard libs
211 AC_SEARCH_LIBS([gethostbyname], [nsl ws2_32])
212 AC_SEARCH_LIBS([memrchr], [],
213                AC_DEFINE(HAVE_MEMRCHR,1,[memrchr supported]), [])
214 AC_SEARCH_LIBS([memset_s], [],
215                AC_DEFINE(HAVE_MEMSET_S,1,[memset_s supported]), [])
216 AC_SEARCH_LIBS([memset_s], [],
217                AC_DEFINE(HAVE_EXPLICIT_BZERO,1,[explicit_bzero supported]), [])
218 AC_CHECK_LIB(socket, socket)
219 AC_CHECK_LIB(m, log)
220 AC_CHECK_LIB(c, getloadavg, AC_DEFINE(HAVE_GETLOADAVG,1,[getloadavg supported]))
221
222 AC_CHECK_PROG(VAR_GETOPT_BINARY, getopt, true, false)
223 AM_CONDITIONAL(HAVE_GETOPT_BINARY, $VAR_GETOPT_BINARY)
224
225 AC_CHECK_PROG(VAR_SSH_BINARY, ssh, true, false)
226 AM_CONDITIONAL(HAVE_SSH_BINARY, $VAR_SSH_BINARY)
227 AM_CONDITIONAL(HAVE_SSH_KEY,  ssh -D 12345 -o "BatchMode yes" -o "UserKnownHostsFile /tmp/gnunet_test_cosks_ssh_garbage" -o "StrictHostKeyChecking no" 127.0.0.1 echo -n)
228 rm -f /tmp/gnunet_test_cosks_ssh_garbage
229
230 # autotools' m4 for python has no maximum version!
231 # python3.4 - python3.8 for tests (3.8 unchecked)
232 # TODO: document how to override the lowest version
233 # TODO: found by this.
234 m4_define_default([_AM_PYTHON_INTERPRETER_LIST],[python3 python3.4 python3.5 python3.6 python3.7 python3.8 python])
235 AM_PATH_PYTHON([3.4],, [:])
236 AC_SUBST([PYTHON])
237 AM_CONDITIONAL([HAVE_PYTHON], [test "$PYTHON" != :])
238
239 # perl
240 AC_PATH_PROG( PERL, perl, ,
241               $PATH:/usr/local/bin/perl:/usr/bin/:/usr/local/bin )
242 AC_SUBST([PERL])
243
244 # iptables is a soft requirement to run tests
245 AC_PATH_TARGET_TOOL(VAR_IPTABLES_BINARY, iptables, false)
246
247 AS_IF([test x"$VAR_IPTABLES_BINARY" = x"false"],
248  [AS_IF([test -x "/sbin/iptables"],
249    [VAR_IPTABLES_BINARY="/sbin/iptables"],
250    [AS_IF([test -x "/usr/sbin/iptables"],
251       [VAR_IPTABLES_BINARY="/usr/sbin/iptables"])])])
252
253 AS_IF([test x"$VAR_IPTABLES_BINARY" != x"false"],
254  [AC_DEFINE_UNQUOTED([IPTABLES], "$VAR_IPTABLES_BINARY", [Path to iptables])],
255  [AC_MSG_WARN([warning: 'iptables' not found.])])
256
257 # ip6tables is a soft requirement for some features
258 AC_PATH_TARGET_TOOL(VAR_IP6TABLES_BINARY, ip6tables, false)
259
260 AS_IF([test x"$VAR_IP6TABLES_BINARY" = x"false"],
261   [AS_IF([test -x "/sbin/ip6tables"],
262      [VAR_IP6TABLES_BINARY="/sbin/ip6tables"],
263      [AS_IF([test -x "/usr/sbin/ip6tables"],
264         [VAR_IP6TABLES_BINARY="/usr/sbin/ip6tables"])])])
265
266
267 AS_IF([test x"$VAR_IP6TABLES_BINARY" != x"false"],
268   [AC_DEFINE_UNQUOTED([IP6TABLES], "$VAR_IP6TABLES_BINARY", [Path to ip6tables])],
269   [AC_MSG_WARN([warning: 'ip6tables' not found.])])
270
271 # ip is a soft requirement for some features
272 AC_PATH_TARGET_TOOL(VAR_IP_BINARY, ip, false)
273
274 AS_IF([test x"$VAR_IP_BINARY" = x"false"],
275  [AS_IF([test -x "/sbin/ip"],
276    [VAR_IP_BINARY="/sbin/ip"],
277    [AS_IF([test -x "/usr/sbin/ip"],
278           [VAR_IP_BINARY="/usr/sbin/ip"])])])
279
280 AS_IF([test x"$VAR_IP_BINARY" != x"false"],
281  [AC_DEFINE_UNQUOTED([PATH_TO_IP], "$VAR_IP_BINARY", [Path to ip])],
282  [AC_MSG_WARN([warning: 'ip' not found.])])
283
284 # locate 'ifconfig'
285 AC_PATH_TARGET_TOOL(VAR_IFCONFIG_BINARY, ifconfig, false)
286
287 AC_CHECK_PROG(VAR_IFCONFIG_BINARY, ifconfig, true, false)
288 AS_IF([test x"$VAR_IFCONFIG_BINARY" = x"false"],
289   [AS_IF([test -x "/sbin/ifconfig"],
290      [VAR_IFCONFIG_BINARY="/sbin/ifconfig"],
291      [AS_IF([test -x "/usr/sbin/ifconfig"],
292             [VAR_IFCONFIG_BINARY="/usr/sbin/ifconfig"])])])
293
294 AS_IF([test x"$VAR_IFCONFIG_BINARY" != x"false"],
295   [AC_DEFINE_UNQUOTED([IFCONFIG], "$VAR_IFCONFIG_BINARY", [Path to ifconfig])],
296   [AC_MSG_WARN(['ifconfig' not found.])])
297
298
299 AC_PATH_TARGET_TOOL(VAR_SYSCTL_BINARY, sysctl, false)
300
301 AC_CHECK_PROG(VAR_SYSCTL_BINARY, sysctl, true, false)
302 AS_IF([test x"$VAR_SYSCTL_BINARY" = x"false"],
303       [AS_IF([test -x "/sbin/sysctl"],
304              [VAR_SYSCTL_BINARY="/sbin/sysctl"],
305              [AS_IF([test -x "/usr/sbin/sysctl"],
306                     [VAR_SYSCTL_BINARY="/usr/sbin/sysctl"])])])
307 AS_IF([test x"$VAR_SYSCTL_BINARY" != x"false"],
308       [AC_DEFINE_UNQUOTED([SYSCTL], "$VAR_SYSCTL_BINARY", [Path to sysctl])],
309       [AC_MSG_WARN(['sysctl' not found.])])
310
311 # miniupnpc / upnpc binary is a soft runtime requirement
312 AC_PATH_TARGET_TOOL(VAR_UPNPC_BINARY, upnpc, false)
313
314 AS_IF([test x"$VAR_UPNPC_BINARY" != x"false"],
315   [AC_DEFINE_UNQUOTED([UPNPC], "$VAR_UPNPC_BINARY", [Path to upnpc binary])],
316   [AC_MSG_WARN([warning: 'upnpc' binary not found.])])
317
318
319 # uncrustify
320 # TODO: maybe add flag to pass location
321 AC_CHECK_PROG(UNCRUSTIFY_BINARY, uncrustify, true)
322 AM_CONDITIONAL(HAVE_UNCRUSTIFY_BINARY, $UNCRUSTIFY_BINARY)
323
324 # yapf
325 # TODO: less repetition, add flag to pass name
326 AC_CHECK_PROGS(YAPF_BINARY, [yapf yapf3.0 yapf3.1 yapf3.2 yapf3.3 yapf3.4 yapf3.5 yapf3.6 yapf3.7 yapf3.8 yapf3.9 yapf4.0], false)
327 AM_CONDITIONAL(HAVE_YAPF_BINARY, test x$YAPF_BINARY != xfalse)
328
329
330 AC_CHECK_MEMBER(struct tm.tm_gmtoff,
331   [AC_DEFINE(HAVE_TM_GMTOFF, 1,
332      [Define if struct tm has the tm_gmtoff member.])],
333      ,
334      [#include <time.h>])
335
336 # 'save' libs; only those libs found so far will be
337 # linked against _everywhere_.  For the others, we
338 # will be more selective!
339 SAVE_LIBS=$LIBS
340
341 have_addrinfo_a=0
342 AC_CHECK_LIB(anl,
343              getaddrinfo_a,
344              [have_addrinfo_a=1 AC_DEFINE(HAVE_GETADDRINFO_A,
345                                           1,
346                                           [getaddrinfo_a supported])])
347 AM_CONDITIONAL(HAVE_GETADDRINFO_A,
348                [test "$have_addrinfo_a" = 1])
349
350 # libgcrypt
351 gcrypt=0
352 NEED_LIBGCRYPT_API=1
353 NEED_LIBGCRYPT_VERSION=1.6.0
354
355
356 AM_PATH_LIBGCRYPT("$NEED_LIBGCRYPT_API:$NEED_LIBGCRYPT_VERSION", gcrypt=1)
357 AC_CHECK_DECLS([gcry_mpi_set_opaque_copy], [], [], [[#include <gcrypt.h>]])
358
359 AS_IF([test $gcrypt = 0],
360  [
361   AC_MSG_ERROR([[
362 ***
363 *** You need libgcrypt to build this program.
364 *** This library is for example available at
365 *** ftp://ftp.gnupg.org/gcrypt/libgcrypt/.
366 *** At least version $NEED_LIBGCRYPT_VERSION (API $NEED_LIBGCRYPT_API)
367 ***  is required.
368 ***]])
369 ])
370 AC_DEFINE_UNQUOTED([NEED_LIBGCRYPT_VERSION], "$NEED_LIBGCRYPT_VERSION", [required libgcrypt version])
371
372 AC_CHECK_DECLS([struct in6_ifreq], [], [], [[#include <linux/if_tun.h>]])
373
374
375
376 # should the build process be building the documentation?
377 AC_MSG_CHECKING(whether to build documentation)
378 AC_ARG_ENABLE([documentation],
379               [AS_HELP_STRING([--disable-documentation],
380                               [do not build the documentation])],
381               [documentation=${enableval}],
382               [documentation=yes])
383 AC_MSG_RESULT($documentation)
384 AS_IF([test "x$documentation" = "xyes"],
385       [AM_CONDITIONAL([DOCUMENTATION],
386                       true)
387        AC_DEFINE([DOCUMENTATION],
388                  [1],
389                  [Building the documentation])],
390       [AM_CONDITIONAL([DOCUMENTATION],
391                       false)
392        AC_DEFINE([DOCUMENTATION],
393                  [0],
394                  [Not building the documentation])])
395
396 # COMMENT: Check wether to transpile texinfo to mdoc.
397 # COMMENT: This is TRUE when --enable-texi2mdoc-generation
398 # COMMENT: but ERRORS when texi2mdoc binary is missing in your $PATH
399 # COMMENT: and makes the configure fail if it is missing.
400 # COMMENT: Consequential the DEFINE and CONDITIONAL are set to true.
401 # COMMENT: This is FALSE when --disable-texi2mdoc-generation was set
402 # COMMENT: or nothing was set (this is the default).
403 # COMMENT: There are 2 nested AS_IFs because we need to catch the
404 # COMMENT: potential non-existence of the texi2mdoc binary.
405 # COMMENT: Default return value / setting: no
406 AC_MSG_CHECKING(wether to include generated texi2mdoc output in installation)
407 AC_ARG_ENABLE([texi2mdoc-generation],
408               [AS_HELP_STRING([--enable-texi2mdoc-generation],
409                               [include generated texi2mdoc output in installation])],
410               [texi2mdoc_generation=${enableval}],
411               [texi2mdoc_generation=no])
412 AC_MSG_RESULT($texi2mdoc_generation)
413 AS_IF([test "x$texi2mdoc_generation" = "xyes"],
414       [AS_IF([test "$texi2mdoc" = 0],
415              [AC_MSG_WARN([ERROR: transpiled mdoc output requires texi2mdoc.])
416               AC_MSG_WARN([ERROR: texi2mdoc can be obtained via your])
417               AC_MSG_WARN([ERROR: Operating System package manager or from])
418               AC_MSG_WARN([ERROR: https://mandoc.bsd.lv/texi2mdoc/])],
419              [AM_CONDITIONAL([TEXI2MDOC_GENERATION],true)
420               AC_DEFINE([TEXI2MDOC_GENERATION],
421                         [1],
422                         [Building section 7 mdoc output])])],
423       [AM_CONDITIONAL([TEXI2MDOC_GENERATION],
424                       false)
425        AC_DEFINE([TEXI2MDOC_GENERATION],
426                  [0],
427                  [Not building section 7 mdoc output])])
428
429 # should the build process be building only the documentation?
430 AC_MSG_CHECKING(whether to build only documentation)
431 AC_ARG_ENABLE([documentation-only],
432    [AS_HELP_STRING([--enable-documentation-only],
433                    [build only the documentation])],
434    [documentation_only=${enableval}],
435    [documentation_only=no])
436 AC_MSG_RESULT($documentation_only)
437 AS_IF([test "x$documentation_only" = "xyes"],
438  [
439   AM_CONDITIONAL([DOCUMENTATION_ONLY],true)
440   AC_DEFINE([DOCUMENTATION_ONLY],[1],[Building only the documentation])
441  ],[
442   AM_CONDITIONAL([DOCUMENTATION_ONLY],false)
443   AC_DEFINE([DOCUMENTATION_ONLY],[0],[Doing a normal build, more than only documentation])
444  ])
445
446 # should the build process be including the manpages? (default: yes)
447 AC_MSG_CHECKING(whether to include man pages)
448 AC_ARG_ENABLE([include-manpages],
449    [AS_HELP_STRING([--disable-include-manpages],
450                    [Do not include the man pages in build and installation])],
451    [include_manpages=${enableval}],
452    [include_manpages=yes])
453 AC_MSG_RESULT($include_manpages)
454 AS_IF([test "x$include_manpages" = "xyes"],
455  [
456   AM_CONDITIONAL([INCLUDE_MANPAGES],true)
457   AC_DEFINE([INCLUDE_MANPAGES],[1],[Including the man pages in the build and installation])
458  ],[
459   AM_CONDITIONAL([INCLUDE_MANPAGES],false)
460   AC_DEFINE([INCLUDE_MANPAGES],[0],[Not including the man pages in the build and installation])
461  ])
462
463 # Do we have texinfo4? If yes, it is used to set texinfo4 specific switches
464 # (not syntax!) to the commandline tools which generate the html. If not,
465 # texinfo5 switches are used. This comes with no version checks, is
466 # enabled only at distributors action (ie defaults to "no").
467 # Mantis #3914 for more details (https://bugs.gnunet.org/view.php?id=3914)
468 AC_MSG_CHECKING(whether to enable texinfo4 switches)
469 AC_ARG_ENABLE([texinfo4],
470    [AS_HELP_STRING([--enable-texinfo4], [Use texinfo version 4 specific switches])],
471    [activate_texinfo4=${enableval}],
472    [activate_texinfo4=no])
473 AC_MSG_RESULT($activate_texinfo4)
474 AS_IF([test "x$activate_texinfo4" = "xyes"],
475  [
476   AM_CONDITIONAL([ACTIVATE_TEXINFO4],true)
477   AC_DEFINE([ACTIVATE_TEXINFO4],[1],[Using texinfo version 4 specific switches])
478  ],[
479   AM_CONDITIONAL([ACTIVATE_TEXINFO4],false)
480   AC_DEFINE([INCLUDE_MANPAGES],[0],[Using texinfo version 5 or later switches])
481  ])
482
483
484 # Adam shostack suggests the following for Windows:
485 # -D_FORTIFY_SOURCE=2 -fstack-protector-all
486 AC_ARG_ENABLE(gcc-hardening,
487    AS_HELP_STRING(--enable-gcc-hardening, enable compiler security checks),
488 [AS_IF([test x$enableval = xyes],[
489     CFLAGS="$CFLAGS -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-all"
490     CFLAGS="$CFLAGS -fwrapv -fPIE -Wstack-protector"
491     CFLAGS="$CFLAGS --param ssp-buffer-size=1"
492     LDFLAGS="$LDFLAGS -pie"
493  ])])
494
495 # Linker hardening options
496 # Currently these options are ELF specific - you can't use this with MacOSX
497 AC_ARG_ENABLE(linker-hardening,
498   AS_HELP_STRING(--enable-linker-hardening, enable linker security fixups),
499 [AS_IF([test x$enableval = xyes],
500    [LDFLAGS="$LDFLAGS -z relro -z now"])])
501
502
503 AC_ARG_ENABLE(sanitizer,
504   AS_HELP_STRING(--enable-sanitizer, enable Address Sanitizer and Undefined Behavior Sanitizer),
505 [AS_IF([test x$enableval = xyes],[
506    LDFLAGS="$CFLAGS -fsanitize=address,undefined -fno-omit-frame-pointer"
507  ])])
508
509
510 extra_logging=GNUNET_NO
511 AC_ARG_ENABLE([logging],
512    AS_HELP_STRING([--enable-logging@<:@=value@:>@],[Enable logging calls. Possible values: yes,no,verbose,veryverbose ('yes' is the default)]),
513    [AS_IF([test "x$enableval" = "xyes"], [],
514           [test "x$enableval" = "xno"], [AC_DEFINE([GNUNET_CULL_LOGGING],[],[Define to cull all logging calls])],
515           [test "x$enableval" = "xverbose"], [extra_logging=GNUNET_YES]
516           [test "x$enableval" = "xveryverbose"], [extra_logging=\(GNUNET_YES+1\)])
517    ], [])
518 AC_DEFINE_UNQUOTED([GNUNET_EXTRA_LOGGING],[$extra_logging],[1 if extra logging is enabled, 2 for very verbose extra logging, 0 otherwise])
519
520 # should memory poisoning be enabled?
521 AC_MSG_CHECKING(whether to poison freed memory)
522 AC_ARG_ENABLE([poisoning],
523    [AS_HELP_STRING([--enable-poisoning], [enable poisoning of freed memory (good for debugging)])],
524    [enable_poisoning=${enableval}],
525    [
526      AS_IF([test "x$extra_logging" != "xGNUNET_NO"],
527        [enable_poisoning="defaults to yes (extra logging is enabled)"],
528        [enable_poisoning=no])
529    ])
530 AC_MSG_RESULT($enable_poisoning)
531 AS_IF([test ! "x$enable_poisoning" = "xno"],
532   [enable_poisoning=1],
533   [enable_poisoning=0])
534 AC_DEFINE_UNQUOTED([ENABLE_POISONING],[$enable_poisoning],[1 if freed memory should be poisoned, 0 otherwise])
535
536 AS_IF([test $build = $target],
537 [
538 AC_MSG_CHECKING([for working HMAC])
539 AC_LANG_PUSH(C)
540 LIBS="$LIBS $LIBGCRYPT_LIBS"
541 CFLAGS="$CFLAGS $LIBGCRYPT_CFLAGS"
542 AC_RUN_IFELSE(
543   [AC_LANG_PROGRAM([#include <gcrypt.h>
544         #include <stdio.h>], [[
545         gcry_md_hd_t mac;
546
547         unsigned char data[] = { 0xbf, 0x16, 0x6e, 0x46, 0x3a, 0x6c, 0xf3, 0x93, 0xa7, 0x72,
548             0x11, 0xa1, 0xdc, 0x0b, 0x07, 0xdb, 0x1a, 0x5e, 0xd9, 0xb9, 0x81, 0xbe,
549             0xea, 0xe4, 0x31, 0x5f, 0x24, 0xff, 0xfe, 0x50, 0x8a, 0xde };
550         unsigned char key[] = { 0xfc, 0x62, 0x76, 0x35 };
551         unsigned char result[] = {0xa2, 0xb, 0x1, 0xd9, 0xc0, 0x8b, 0x5a, 0x12, 0x80,
552             0xd5, 0x50, 0x12, 0x8e, 0xd0, 0x5b, 0xb6, 0x5c, 0x87, 0x24, 0xe2, 0xd0,
553             0xd2, 0xaf, 0x63, 0xae, 0xd1, 0xd6, 0x64, 0x14, 0xe3, 0x6e, 0x61, 0x5b,
554             0xd, 0xba, 0x17, 0x7d, 0xd3, 0x10, 0xb1, 0x37, 0x41, 0x91, 0x7d, 0xeb,
555             0x1, 0x4d, 0x71, 0xe8, 0x59, 0x71, 0x42, 0x8e, 0xd6, 0xf3, 0x29, 0x3b,
556             0x90, 0xf2, 0xd1, 0xaf, 0x65, 0x1e, 0xb3};
557
558         if (!gcry_check_version (GCRYPT_VERSION))
559         {
560           fprintf (stderr, "Version mismatch %s <-> %s \n", gcry_check_version (NULL), GCRYPT_VERSION);
561           return 1;
562         }
563
564         gcry_control (GCRYCTL_DISABLE_SECMEM, 0);
565         gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
566
567         if (gcry_md_open(&mac, GCRY_MD_SHA512, GCRY_MD_FLAG_HMAC) != GPG_ERR_NO_ERROR)
568         {
569           fprintf (stderr, "gcry_md_open error\n");
570           return 2;
571         }
572
573         gcry_md_setkey (mac, key, sizeof (key));
574         gcry_md_write (mac, data, sizeof (data));
575
576         if (memcmp(gcry_md_read (mac, 0), result, gcry_md_get_algo_dlen (gcry_md_get_algo (mac))) != 0)
577         {
578           fprintf (stderr, "memcmp error\n");
579           return 3;
580         }
581
582         gcry_md_close (mac);
583
584         return 0;
585     ]])],
586   [AC_MSG_RESULT([yes])],
587   [
588    RESULT=$?
589    if test $RESULT = 3
590    then
591      AC_MSG_FAILURE([HMAC test vector does not match. This is a known problem with libgcrypt 1.2.2 on Windows and fixed in 1.4.6.])
592    fi
593    if test $RESULT = 2
594    then
595      AC_MSG_FAILURE([HMAC test failed])
596    fi
597    if test $RESULT = 1
598    then
599      AC_MSG_FAILURE([libgcrypt header version does not match library version])
600    fi
601   ],
602   [AC_MSG_RESULT([cross compiling, test skipped])])
603 AC_LANG_POP(C)
604 ])      # $build = $target
605
606 # check for bluetooth library
607 bluetooth=0
608 AC_MSG_CHECKING(for libbluetooth)
609 AC_ARG_WITH(libbluetooth,
610     [  --with-libbluetooth=PREFIX (base of libbluetooth installation)],
611     [AC_MSG_RESULT([$with_libbluetooth])
612      AS_CASE([$with_libbluetooth],
613         [no],[],
614         [yes],[
615             CHECK_LIBHEADER(BLUETOOTH,
616                             bluetooth,
617                             ba2str,
618                             bluetooth/bluetooth.h,
619                             bluetooth=1,)
620         ],[
621             LDFLAGS="-L$with_libbluetooth/lib $LDFLAGS"
622             CPPFLAGS="-I$with_libbluetooth/include $CPPFLAGS"
623             AC_CHECK_HEADERS(bluetooth/bluetooth.h,
624                              AC_CHECK_LIB([bluetooth],
625                                           [ba2str],
626                                           EXT_LIB_PATH="-L$with_libbluetooth/lib $EXT_LIB_PATH"
627                                           bluetooth=1))
628         ])
629     ],
630     [AC_MSG_RESULT([--with-libbluetooth not specified])
631      CHECK_LIBHEADER(BLUETOOTH,
632                      bluetooth,
633                      ba2str,
634                      bluetooth/bluetooth.h,
635                      bluetooth=1,)])
636 AM_CONDITIONAL(HAVE_LIBBLUETOOTH, [test "$bluetooth" = 1])
637 AS_IF([test "$bluetooth" = 1],
638       [AC_DEFINE([HAVE_LIBBLUETOOTH],[1],[Have bluetooth library])],
639       [AC_DEFINE([HAVE_LIBBLUETOOTH],[0],[Lacking bluetooth library])])
640
641 # check for zbar library
642 zbar=0
643 AC_MSG_CHECKING(for libzbar)
644 AC_ARG_WITH(zbar,
645    [  --with-zbar=PREFIX (base of libzbar installation)],
646    [AC_MSG_RESULT([$with_zbar])
647     AS_CASE([$with_zbar],
648       [no],[],
649       [yes],[CHECK_LIBHEADER(ZBAR, zbar, zbar_processor_create, zbar.h,zbar=1,,)],
650       [
651         LDFLAGS="-L$with_zbar/lib $LDFLAGS"
652         CPPFLAGS="-I$with_zbar/include $CPPFLAGS"
653         AC_CHECK_HEADERS(zbar.h,
654           AC_CHECK_LIB([zbar], [zbar_processor_create],
655             EXT_LIB_PATH="-L$with_zbar/lib $EXT_LIB_PATH"
656             zbar=1))
657        ])
658    ],
659    [AC_MSG_RESULT([--with-zbar not specified])
660     CHECK_LIBHEADER(ZBAR, zbar, zbar_processor_create, zbar.h,zbar=1,,)])
661 AM_CONDITIONAL(HAVE_ZBAR, [test "$zbar" = 1])
662 AS_IF([test "x$zbar" = x1],
663       [AC_DEFINE([HAVE_ZBAR],[1],[Have zbar library])],
664       [AC_DEFINE([HAVE_ZBAR],[0],[Lacking zbar library])])
665
666 # check for jansson library
667 jansson=0
668 AC_MSG_CHECKING(for libjansson)
669 AC_ARG_WITH(jansson,
670    [  --with-jansson=PREFIX (base of libjansson installation)],
671    [AC_MSG_RESULT([$with_jansson])
672     AS_CASE([$with_jansson],
673       [no],[],
674       [yes],[
675         CHECK_LIBHEADER(JANSSON, jansson, json_loads, jansson.h,jansson=1,)
676       ],[
677         LDFLAGS="-L$with_jansson/lib $LDFLAGS"
678         CPPFLAGS="-I$with_jansson/include $CPPFLAGS"
679         AC_CHECK_HEADERS(jansson.h,
680           AC_CHECK_LIB([jansson], [json_loads],
681             EXT_LIB_PATH="-L$with_jansson/lib $EXT_LIB_PATH"
682             jansson=1))
683       ])
684    ],
685    [AC_MSG_RESULT([--with-jansson not specified])
686     CHECK_LIBHEADER(JANSSON, jansson, json_loads, jansson.h,jansson=1,)])
687 AM_CONDITIONAL(HAVE_JANSSON, [test "$jansson" = 1])
688 AM_CONDITIONAL(HAVE_JSON, [test x$jansson = x1])
689 AS_IF([test "x$jansson" = x1],
690       [AC_DEFINE([HAVE_JANSSON],[1],[Have jansson library])],
691       [AC_DEFINE([HAVE_JANSSON],[0],[Lacking jansson library])])
692
693
694 # check for libpulse(audio) library
695 pulse=0
696 libpulse_msg="no"
697 AC_MSG_CHECKING(for libpulse)
698 # TODO: --with-libpulse or --with-pulseaudio? What is more established
699 # TODO: in this context?
700 AC_ARG_WITH(libpulse,
701     [  --with-libpulse=PREFIX (base of libpulse installation)],
702     [AC_MSG_RESULT([$with_libpulse])
703      AS_CASE([$with_libpulse],
704         [no],[],
705         [yes],[
706             CHECK_LIBHEADER(LIBPULSE,
707                             pulse,
708                             pa_stream_peek,
709                             pulse/simple.h,
710                             pulse=1,)
711         ],[
712             LDFLAGS="-L$with_libpulse/lib $LDFLAGS"
713             CPPFLAGS="-I$with_libpulse/include $CPPFLAGS"
714             AC_CHECK_HEADERS(pulse/simple.h,
715                              AC_CHECK_LIB([pulse],
716                                           [pa_stream_peek],
717                                           EXT_LIB_PATH="-L$with_pulse/lib $EXT_LIB_PATH"
718                                           pulse=1))
719         ])
720     ],
721     [AC_MSG_RESULT([--with-libpulse not specified])
722      CHECK_LIBHEADER(LIBPULSE,
723                      pulse,
724                      pa_stream_peek,
725                      pulse/simple.h,
726                      pulse=1,)])
727 AM_CONDITIONAL(HAVE_PULSE, [test "$pulse" = 1])
728 AS_IF([test x"$pulse" = x1],
729       [AC_DEFINE([HAVE_PULSE],[1],[Have libpulse(audio) library])
730        libpulse_msg="yes"],
731       [AC_DEFINE([HAVE_PULSE],[0],[Lacking libpulse(audio) library])
732        libpulse_msg="no"])
733
734 # check for libopus(audio) library
735 opus=0
736 libopus_msg="no"
737 CHECK_LIBHEADER(LIBOPUS,
738                 opus,
739                 opus_decode_float,
740                 opus/opus.h,
741                 AC_CHECK_DECL([OPUS_SET_GAIN],[opus=1],[],[[#include <opus/opus.h>]]))
742 AS_IF([test "x$opus" = x1],
743       [AC_DEFINE([HAVE_OPUS],[1],[Have libopus library])
744        libopus_msg="yes"])
745
746 # libogg
747 AC_CHECK_LIB(ogg, ogg_stream_flush_fill,
748         [AC_CHECK_HEADERS([ogg/ogg.h],
749           AM_CONDITIONAL(HAVE_OGG, true)
750           ogg=1
751           AC_DEFINE(HAVE_OGG,1,[Have ogg]),
752           AM_CONDITIONAL(HAVE_OGG, false)
753           ogg=0
754           AC_DEFINE(HAVE_OGG,0,[lacking ogg]))],
755         AM_CONDITIONAL(HAVE_OGG, false)
756         ogg=0)
757
758
759 PKG_CHECK_MODULES([GLIB],
760                   [glib-2.0],
761   [# check for pbc library
762   pbc=0
763    AC_CHECK_HEADER([pbc/pbc.h],pbc=1)
764    AC_CHECK_HEADER([gabe.h],abe=1)
765    AM_CONDITIONAL(HAVE_PBC, [test "x$pbc" = x1])
766    AM_CONDITIONAL(HAVE_ABE, [test "x$abe" = x1])
767    AS_IF([test "x$pbc" = x1],
768      [AC_DEFINE([HAVE_PBC],[1],[Have pbc library])],
769      [AC_DEFINE([HAVE_PBC],[0],[Lacking pbc library])])
770    AS_IF([test "x$abe" = x1],
771     [AC_DEFINE([HAVE_ABE],[1],[Have ABE library])],
772     [AC_DEFINE([HAVE_ABE],[0],[Lacking ABE library])])],
773   [# glib-2 not found
774    AM_CONDITIONAL(HAVE_PBC, [false])
775    AM_CONDITIONAL(HAVE_ABE, [false])
776    AC_DEFINE([HAVE_PBC],[0],[Lacking glib library])])
777
778 gst=0
779 gstreamer_msg="no"
780 PKG_CHECK_MODULES(
781   [GST],
782   [glib-2.0 gobject-2.0 gstreamer-1.0 gstreamer-app-1.0 gstreamer-audio-1.0],
783   [gst=1
784    gstreamer_msg="yes"],
785   [gst=0])
786
787 # Pulse Audio
788 AS_IF([test "x$pulse" != "x1" -o "x$opus" != "x1" -o "x$ogg" != "x1"],[
789  AS_IF([test "x$gst" != "x1"],[
790   conversation_backend=none
791   AM_CONDITIONAL(BUILD_PULSE_HELPERS, false)
792   AM_CONDITIONAL(BUILD_GST_HELPERS, false)
793   AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
794  ],[
795    conversation_backend=gst
796    AM_CONDITIONAL(BUILD_PULSE_HELPERS, false)
797    AM_CONDITIONAL(BUILD_GST_HELPERS, true)
798    AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
799  ])
800 ],[
801  conversation_backend=pulse
802  AM_CONDITIONAL(BUILD_PULSE_HELPERS, true)
803  AM_CONDITIONAL(BUILD_GST_HELPERS, false)
804  AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
805 ])
806
807 AS_IF([test "x$conversation_backend" = "xnone"],
808       AM_CONDITIONAL(BUILD_CONVERSATION, false),
809       AM_CONDITIONAL(BUILD_CONVERSATION, true))
810
811 # libgnurl
812 LIBGNURL_CHECK_CONFIG(,7.34.0,gnurl=1,gnurl=0)
813
814 SAVE_CPPFLAGS=$CPPFLAGS
815 CPPFLAGS="$LIBGNURL_CPPFLAGS $LIBCURL_CPPFLAGS $CPPFLAGS"
816 LIBS="$LIBGNURL $LIBCURL $LIBS"
817
818 # libcurl-gnutls
819 LIBCURL_CHECK_CONFIG(,7.34.0,[curl=true],[curl=false])
820 AS_IF([test "x$curl" = xtrue],[
821  AC_CHECK_HEADER([curl/curl.h],
822   AC_CHECK_DECLS(CURLINFO_TLS_SESSION,[curl=true],[curl=false],[[#include <curl/curl.h>]]),
823   [curl=false])
824  # need libcurl-gnutls.so, everything else is not acceptable
825  AC_CHECK_LIB([curl-gnutls],[curl_easy_getinfo],,[curl=false])
826  # cURL must support CURLINFO_TLS_SESSION, version >= 7.34
827 ])
828
829 # libcurl and libgnurl should be mutually exclusive
830 AS_IF([test "$gnurl" = 1],
831       [AM_CONDITIONAL(HAVE_LIBGNURL, true)
832        AC_DEFINE([HAVE_LIBGNURL],[1],[Have libgnurl])
833        AM_CONDITIONAL(HAVE_LIBCURL, false)
834        AC_DEFINE([HAVE_LIBCURL],[0],[Lacking libcurl])],
835       [AS_IF([test "$curl" = true],
836              [AM_CONDITIONAL(HAVE_LIBGNURL, false)
837               AC_DEFINE([HAVE_LIBGNURL],[0],[Lacking libgnurl])
838               AM_CONDITIONAL(HAVE_LIBCURL, true)
839               AC_DEFINE([HAVE_LIBCURL],[1],[Have libcurl])],
840              [AC_MSG_WARN([ERROR: GNUnet requires libcurl-gnutls or gnurl >= 7.34])
841               AM_CONDITIONAL(HAVE_LIBGNURL, false)
842               AC_DEFINE([HAVE_LIBGNURL],[0],[Lacking libgnurl])
843               AM_CONDITIONAL(HAVE_LIBCURL, false)
844               AC_DEFINE([HAVE_LIBCURL],[0],[Lacking libcurl])])])
845
846 AC_SEARCH_LIBS(__atomic_load_8, atomic, [have_libatomic=1 AC_DEFINE(HAVE_LIBATOMIC,1,[external libatomic])])
847 AM_CONDITIONAL(HAVE_LIBATOMIC, [test "$have_libatomic" = 1])
848
849 # restore LIBS & CPPFLAGS
850 LIBS=$SAVE_LIBS
851 CPPFLAGS=$SAVE_CPPFLAGS
852
853
854 AC_CHECK_HEADERS([nss.h],[nss=true],[nss=false])
855 AS_IF([test x$nss = xfalse],
856   [
857         AM_CONDITIONAL(HAVE_GLIBCNSS, false)
858         AC_MSG_WARN([No GNU libc nss header, will not build NSS plugin])
859   ],[
860         NSS_INCLUDES="
861         #include <nss.h>
862         "
863         AC_CHECK_DECL([NSS_STATUS_UNAVAIL],
864                 [AM_CONDITIONAL(HAVE_GLIBCNSS, true)],
865                 [AM_CONDITIONAL(HAVE_GLIBCNSS, false)
866                  AC_MSG_WARN([No nss header fails to define NSS_STATUS_UNAVAIl, will not build NSS plugin])],
867                 [$NSS_INCLUDES])
868 ])
869
870
871
872 # test for kvm and kstat (for CPU stats under BSD/Solaris)
873 AC_CHECK_LIB([kvm],[kvm_open])
874 AC_CHECK_LIB([kstat],[kstat_open])
875
876
877 # should the build process be restricted to the code required
878 # for GNU Taler wallets?
879 AC_MSG_CHECKING(whether to compile GNU Taler Wallet library ONLY)
880 AC_ARG_ENABLE([taler-wallet],
881    [AS_HELP_STRING([--enable-taler-wallet], [only compile for Taler wallet])],
882    [taler_only=${enableval}],
883    [taler_only=no])
884 AC_MSG_RESULT($taler_only)
885 AS_IF([test "x$taler_only" = "xyes"],
886 [
887   AM_CONDITIONAL([TALER_ONLY],true)
888   AC_DEFINE([TALER_WALLET_ONLY],[1],[Compiling for Taler wallet])
889 ],[
890   AM_CONDITIONAL([TALER_ONLY],false)
891   AC_DEFINE([TALER_WALLET_ONLY],[0],[Canonical compilation])
892 ])
893
894 # test for libextractor
895 extractor=0
896 AC_MSG_CHECKING(for libextractor)
897 AC_ARG_WITH(extractor,
898    [  --with-extractor=PREFIX (base of libextractor installation)],
899    [AC_MSG_RESULT([$with_extractor])
900     AS_CASE([$with_extractor],
901       [no],[],
902       [yes],[
903         AC_CHECK_HEADERS([extractor.h],
904           AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
905             extractor=1))
906       ],[
907         LDFLAGS="-L$with_extractor/lib $LDFLAGS"
908         CPPFLAGS="-I$with_extractor/include $CPPFLAGS"
909         AC_CHECK_HEADERS([extractor.h],
910           AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
911             EXT_LIB_PATH="-L$with_extractor/lib $EXT_LIB_PATH"
912             extractor=1))
913       ])
914    ],
915    [AC_MSG_RESULT([--with-extractor not specified])
916     AC_CHECK_HEADERS([extractor.h],
917      AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
918       extractor=1))])
919 # restore LIBS
920 LIBS=$SAVE_LIBS
921
922 AS_IF([test "$extractor" != 1],
923  [
924  AM_CONDITIONAL(HAVE_LIBEXTRACTOR, false)
925  AC_DEFINE([HAVE_LIBEXTRACTOR],[0],[Lacking libextractor])
926  ],[
927  AM_CONDITIONAL(HAVE_LIBEXTRACTOR, true)
928  AC_DEFINE([HAVE_LIBEXTRACTOR],[1],[Have libextractor])
929  ])
930
931
932 AS_IF([test "$taler_only" != yes],[
933
934
935 # Check for libltdl header (#2999)
936 ltdl=0
937 AC_MSG_CHECKING(for libltdl)
938 AC_ARG_WITH(ltdl,
939    [AS_HELP_STRING([--with-ltdl=PREFIX],[base of libltdl installation])],
940    [AC_MSG_RESULT([$with_ltdl])
941     AS_CASE([$with_ltdl],
942       [no],[],
943       [yes],[
944         AC_CHECK_HEADERS(ltdl.h,
945           AC_CHECK_LIB([ltdl], [lt_dlopenext],
946             ltdl=1))
947       ],[
948         LDFLAGS="-L$with_ltdl/lib $LDFLAGS"
949         CPPFLAGS="-I$with_ltdl/include $CPPFLAGS"
950         AC_CHECK_HEADERS(ltdl.h,
951           AC_CHECK_LIB([ltdl], [lt_dlopenext],
952             EXT_LIB_PATH="-L$with_ltdl/lib $EXT_LIB_PATH"
953             ltdl=1))
954       ])
955    ],
956    [AC_MSG_RESULT([--with-ltdl not specified])
957     AC_CHECK_HEADERS(ltdl.h,
958      AC_CHECK_LIB([ltdl], [lt_dlopenext],
959       ltdl=1))])
960 AS_IF([test x$ltdl = x1],
961 [
962  AC_MSG_RESULT([libltdl found])
963 ],[
964  AC_MSG_ERROR([GNUnet requires libltdl (from GNU libtool), try installing libltdl-dev])
965 ])
966 # restore LIBS
967 LIBS=$SAVE_LIBS
968
969 # libidn and libidn2. The ideal goal is this:
970 # check for libidn2, if it doesn't exist check for libidn
971 # if both exist, prefer libidn2
972 # if none exist, fail and message that libidn or libidn2
973 # is required with a preference for libidn2.
974 # TODO: What we have right here can probably be improved.
975 my_with_libidn=1
976 AC_ARG_WITH(libidn,
977             AS_HELP_STRING([--with-libidn=pathname],
978                            [Support IDN (needs libidn)]),
979             [],
980             [withval="yes"])
981 AS_IF([test x_$withval = x_yes],
982       [AC_CHECK_HEADERS([idna.h],
983           AC_MSG_NOTICE([Found idna.h]),
984           AC_CHECK_HEADERS([idn/idna.h],
985                AC_MSG_NOTICE([Found idn/idna.h]),
986                my_with_libidn=0))],
987       [AS_IF([test x_$withval != x_no],
988              [CFLAGS="$CFLAGS -I$withval/include"
989               LDFLAGS="$LDFLAGS -L$withval/lib"
990               AC_CHECK_HEADERS([idna.h],
991                 AC_MSG_NOTICE([Found idna.h]),
992                 [AC_MSG_NOTICE([Failed to find idna.h])
993                  my_with_libidn=0])],
994              [my_with_libidn=0])])
995
996 my_with_libidn2=1
997 AC_ARG_WITH(libidn2,
998             AS_HELP_STRING([--with-libidn2=pathname],
999                            [Support IDN (needs libidn2)]),
1000             [],
1001             [withval="yes"])
1002 AS_IF([test x_$withval = x_yes],
1003       [AC_CHECK_HEADERS([idn2.h],
1004        AC_MSG_NOTICE([Found idn2.h]),
1005        AC_CHECK_HEADERS([idn2/idn2.h],
1006           AC_MSG_NOTICE([Found idn2/idn2.h]),
1007           [AC_MSG_NOTICE([Failed to find idn2.h])
1008            my_with_libidn2=0]))],
1009       [AS_IF([test x_$withval != x_no],
1010              [CFLAGS="$CFLAGS -I$withval/include"
1011               LDFLAGS="$LDFLAGS -L$withval/lib"],
1012              [my_with_libidn2=0])])
1013
1014 AC_MSG_CHECKING([if libidn can be used])
1015 # Check for LIBIDNs
1016 there_can_only_be_one=1
1017
1018 working_libidn1=0
1019 working_libidn2=0
1020 AS_IF([test x$my_with_libidn2 = x1],
1021       [AC_MSG_NOTICE([Checking for libidn2])
1022        AC_CHECK_LIB([idn2],
1023                     [idn2_to_unicode_8z8z],
1024                     [working_libidn2=1
1025                     LIBS="-lidn2 $LIBS"
1026                     AC_DEFINE_UNQUOTED([HAVE_LIBIDN2],
1027                                        [1],
1028                                        [Define to 1 if you have 'libidn2' (-lidn2).])],
1029                     [MISSING_DEPS="${MISSING_DEPS}${MISSING_SEP}libidn2"
1030                      MISSING_SEP=", "])])
1031 AM_CONDITIONAL(HAVE_LIBIDN2,
1032                test x$working_libidn2 = x1)
1033 AS_IF([test x$working_libidn2 = x0],
1034       [AS_IF([test x$my_with_libidn = x1],
1035              [AC_MSG_NOTICE([Checking for libidn])
1036               AC_CHECK_LIB([idn],
1037                            [idna_to_ascii_8z],
1038                            [working_libidn1=1
1039                            LIBS="-lidn $LIBS"
1040                            AC_DEFINE_UNQUOTED([HAVE_LIBIDN],
1041                                               [1],
1042                                               [Define to 1 if you have 'libidn' (-lidn).])],
1043                            [there_can_only_be_one=0])],
1044              [AS_IF([test x$my_with_libidn2 = x1],
1045                     [there_can_only_be_one=0
1046                      AC_MSG_FAILURE([* There can only be one libidn.
1047                                      * Provide either libidn >= 1.13
1048                                      * or
1049                                      * libidn2 to the configure
1050                                      * script via
1051                                      * --with-libidn2
1052                                      * --with-libidn])])])])
1053 AM_CONDITIONAL(HAVE_LIBIDN, test x$working_libidn1 = x1)
1054
1055 AS_IF([test "$working_libidn1" = 0 -a "$working_libidn2" = 0],
1056       [AC_MSG_ERROR([GNUnet requires libidn (or libidn2)])])
1057
1058 AS_IF([test x$there_can_only_be_one = x0],
1059       [AC_MSG_FAILURE([Missing dependencies: $MISSING_DEPS])])
1060
1061 # test for zlib
1062 SAVE_LDFLAGS=$LDFLAGS
1063 SAVE_CPPFLAGS=$CPPFLAGS
1064 AC_ARG_WITH(zlib,
1065             [  --with-zlib[[=DIR]]       use libz in DIR],
1066             [AS_IF([test "$withval" = "no"],
1067                    [AC_MSG_ERROR([GNUnet requires zlib])],
1068                    [test "$withval" != "yes"],
1069                    [Z_DIR=$withval
1070                     CPPFLAGS="${CPPFLAGS} -I$withval/include"
1071                     LDFLAGS="${LDFLAGS} -L$withval/lib"])])
1072 AC_CHECK_HEADER(zlib.h,
1073                 [],
1074                 [AC_MSG_ERROR([GNUnet requires zlib])])
1075 AC_CHECK_LIB(z,
1076              compress2,
1077              [AC_DEFINE([HAVE_ZLIB],
1078                         [],
1079                         [Have compression library])
1080               if test "x${Z_DIR}" != "x"; then
1081                       Z_CFLAGS="-I${Z_DIR}/include"
1082                       Z_LIBS="-L${Z_DIR}/lib -lz"
1083               else
1084                       Z_LIBS="-lz"
1085               fi],
1086               [AC_MSG_ERROR([GNUnet requires zlib])])
1087 AC_SUBST(Z_CFLAGS)
1088 AC_SUBST(Z_LIBS)
1089
1090 AS_IF([test "$enable_shared" = "no"],
1091       [AC_MSG_ERROR([GNUnet only works with shared libraries. Sorry.])])
1092
1093
1094 # restore LIBS
1095 LIBS=$SAVE_LIBS
1096
1097
1098 # end of taler-only being false
1099 ])
1100
1101
1102 # check for iconv
1103 AM_ICONV
1104
1105 # test for libunistring
1106 gl_LIBUNISTRING
1107 AS_IF([test $HAVE_LIBUNISTRING != yes],
1108       [AC_MSG_ERROR([GNUnet requires libunistring])])
1109
1110 # under emscripten, $gl_libunistring_hexversion is undefined
1111 if test "$taler_only" != yes; then
1112
1113 AS_IF([test "x$gl_libunistring_hexversion" = "x" || test "$gl_libunistring_hexversion" -le 2305],
1114       [AC_MSG_ERROR([GNUnet requires libunistring >= 0.9.1.1])])
1115 fi
1116 AC_CHECK_HEADERS([unistr.h],
1117                  ,
1118                  AC_MSG_ERROR([Compiling GNUnet requires unistr.h (from libunistring) to be installed]))
1119
1120 # restore LIBS
1121 LIBS=$SAVE_LIBS
1122
1123
1124
1125 # Checks for standard header files.
1126 AC_HEADER_DIRENT
1127 AC_HEADER_STDC
1128
1129 # Check for headers that are ALWAYS required
1130 AC_CHECK_HEADERS([fcntl.h math.h errno.h ctype.h limits.h stdio.h stdlib.h string.h unistd.h stdarg.h signal.h locale.h sys/stat.h sys/types.h],,AC_MSG_ERROR([Compiling GNUnet requires standard UNIX headers files: fcntl.h math.h errno.h ctype.h limits.h stdio.h stdlib.h string.h unistd.h stdarg.h signal.h locale.h sys/stat.h sys/types.h]))
1131
1132
1133
1134 # Checks for headers that are only required on some systems or
1135 # opional (and where we do NOT abort if they are not there)
1136 AC_CHECK_HEADERS([stdatomic.h malloc.h malloc/malloc.h malloc/malloc_np.h langinfo.h sys/param.h sys/mount.h sys/statvfs.h sys/select.h sockLib.h sys/mman.h sys/msg.h sys/vfs.h arpa/inet.h fcntl.h libintl.h netdb.h netinet/in.h sys/ioctl.h sys/socket.h sys/time.h unistd.h kstat.h sys/sysinfo.h kvm.h sys/file.h sys/resource.h ifaddrs.h mach/mach.h stddef.h sys/timeb.h argz.h ucred.h sys/ucred.h endian.h sys/endian.h execinfo.h byteswap.h])
1137
1138 # FreeBSD requires this for netinet/in_systm.h and netinet/ip.h
1139 AC_CHECK_HEADERS([sys/types.h netinet/in_systm.h netinet/in.h netinet/ip.h],,,
1140 [#ifdef HAVE_SYS_TYPES_H
1141 #include <sys/types.h>
1142 #endif
1143 #ifdef HAVE_NETINET_IN_SYSTM_H
1144 #include <netinet/in_systm.h>
1145 #endif
1146 #ifdef HAVE_NETINET_IN_H
1147 #include <netinet/in.h>
1148 #endif
1149 ])
1150
1151 SAVE_LDFLAGS=$LDFLAGS
1152 SAVE_CPPFLAGS=$CPPFLAGS
1153
1154 # test for sqlite
1155 sqlite=false
1156 AC_MSG_CHECKING(for SQLite)
1157 AC_ARG_WITH(sqlite,
1158   [  --with-sqlite=PFX       base of SQLite installation],
1159   [AC_MSG_RESULT("$with_sqlite")
1160    AS_CASE([$with_sqlite],
1161      [no],[],
1162      [yes],[
1163       AC_CHECK_HEADERS(sqlite3.h,
1164       sqlite=true)],
1165      [
1166     LDFLAGS="-L$with_sqlite/lib $LDFLAGS"
1167     CPPFLAGS="-I$with_sqlite/include $CPPFLAGS"
1168     AC_CHECK_HEADERS(sqlite3.h,
1169      EXT_LIB_PATH="-L$with_sqlite/lib $EXT_LIB_PATH"
1170      SQLITE_LDFLAGS="-L$with_sqlite/lib"
1171      SQLITE_CPPFLAGS="-I$with_sqlite/include"
1172      sqlite=true)
1173     LDFLAGS=$SAVE_LDFLAGS
1174     CPPFLAGS=$SAVE_CPPFLAGS
1175     ])
1176   ],
1177   [AC_MSG_RESULT([--with-sqlite not specified])
1178     AC_CHECK_HEADERS(sqlite3.h, sqlite=true)])
1179 AM_CONDITIONAL(HAVE_SQLITE, test x$sqlite = xtrue)
1180 AC_SUBST(SQLITE_CPPFLAGS)
1181 AC_SUBST(SQLITE_LDFLAGS)
1182
1183 LDFLAGS=$SAVE_LDFLAGS
1184 CPPFLAGS=$SAVE_CPPFLAGS
1185
1186 # test for postgres
1187 postgres=false
1188 # even running the check for postgres breaks emscripten ...
1189 AS_IF([test "$taler_only" != yes],
1190       [AX_LIB_POSTGRESQL([9.5],
1191         [CPPFLAGS="$CPPFLAGS $POSTGRESQL_CPPFLAGS"
1192          AC_CHECK_HEADERS([libpq-fe.h],
1193          postgres=true)
1194         ],
1195         [AC_MSG_RESULT([no postgres])])])
1196 AM_CONDITIONAL(HAVE_POSTGRESQL, test x$postgres = xtrue)
1197
1198
1199 LDFLAGS=$SAVE_LDFLAGS
1200 CPPFLAGS=$SAVE_CPPFLAGS
1201
1202 # mysql & windows
1203 AC_CHECK_TYPES([sigset_t, off_t], [], [], [#include <sys/types.h>])
1204 AC_CHECK_TYPES([size_t], [], [], [#include <stdio.h>])
1205
1206 # test for mysql
1207 mysql=false
1208 mysqlfail=false
1209 SAVE_LDFLAGS=$LDFLAGS
1210 SAVE_CPPFLAGS=$CPPFLAGS
1211 AC_MSG_CHECKING(for mysql)
1212 AC_ARG_WITH(mysql,
1213   [  --with-mysql=PFX        base of MySQL installation],
1214   [AC_MSG_RESULT([$with_mysql])
1215    AS_CASE([$with_mysql],
1216      [no],[],
1217      [yes|""],[
1218       AC_CHECK_HEADERS(mysql/mysql.h,
1219        AC_CHECK_LIB(mysqlclient, mysql_init,
1220        mysql=true), [], [])
1221      ],[
1222       LDFLAGS="-L$with_mysql/lib -L$with_mysql/lib/mysql $LDFLAGS $ZLIBS"
1223       CPPFLAGS="-I$with_mysql/include $CPPFLAGS"
1224       AC_CHECK_HEADERS(mysql/mysql.h,
1225        AC_CHECK_LIB(mysqlclient, mysql_init,
1226         MYSQL_LDFLAGS="-L$with_mysql/lib -L$with_mysql/lib/mysql"
1227         MYSQL_CPPFLAGS="-I$with_mysql/include"
1228
1229         mysql=true), [], [])
1230      ])
1231   ],
1232   [AC_MSG_RESULT([--with-mysql not specified])
1233    if test -d "/usr/lib64/mysql"; then
1234     MYSQL_LIBDIR="/usr/lib64/mysql"
1235    elif test -d "/usr/lib/mysql"; then
1236     MYSQL_LIBDIR="/usr/lib/mysql"
1237    else
1238     MYSQL_LIBDIR="/usr/lib"
1239    fi
1240    LDFLAGS="-L$MYSQL_LIBDIR $LDFLAGS $ZLIBS"
1241    AC_CHECK_LIB(mysqlclient, mysql_init,
1242     [AC_CHECK_HEADERS(mysql/mysql.h,
1243       MYSQL_LDFLAGS="-L$MYSQL_LIBDIR"
1244       mysql=true
1245
1246      , [], [])])
1247   ])
1248
1249 AC_SUBST(MYSQL_LDFLAGS)
1250 AC_SUBST(MYSQL_CPPFLAGS)
1251
1252 # additional version check for mysql
1253 AC_ARG_ENABLE(mysql-version-check, [  --disable-mysql-version-check  do not check MySQL version],, enable_mysql_version_check=yes)
1254 AS_IF([test "$mysql" = "true" -a "x$enable_mysql_version_check" = "xyes"],
1255  [
1256   AC_MSG_CHECKING(mysql version)
1257   AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1258     [[
1259       #include <mysql/mysql.h>]],
1260     [[
1261       #if (MYSQL_VERSION_ID < 40100)
1262       #error needs at least version >= 4.1
1263       #endif
1264       int main () { return 0; }
1265     ]])
1266     ],mysql=true,mysql=false)
1267   AS_IF([test "$mysql" = "false"],
1268    [
1269     mysqlfail=true
1270     AC_MSG_RESULT([fail, >= 4.1 required])
1271    ],[
1272     AC_MSG_RESULT(ok)
1273    ])
1274 ])
1275 AM_CONDITIONAL(HAVE_MYSQL, test x$mysql = xtrue)
1276 AM_CONDITIONAL(HAVE_MYSQLE, false)
1277 # restore LIBS
1278 LIBS=$SAVE_LIBS
1279 LDFLAGS=$SAVE_LDFLAGS
1280 CPPFLAGS=$SAVE_CPPFLAGS
1281
1282 AS_IF([test "$sqlite" = 0 -a "$mysql" = 0],
1283 [
1284  AC_MSG_ERROR([GNUnet requires SQLite or MySQL])
1285 ])
1286
1287 # libmicrohttpd
1288 lmhd=0
1289 m4_define([MHD_MODULE], [libmicrohttpd >= 0.9.63])
1290 AC_ARG_WITH(microhttpd,
1291    [AS_HELP_STRING([--with-microhttpd[[=PFX]]],
1292        [base of libmicrohttpd installation])],
1293    [],
1294    [with_microhttpd=check])
1295 AS_CASE([$with_microhttpd],
1296    [no], [],
1297    [yes], [PKG_CHECK_MODULES([MHD], [MHD_MODULE], [lmhd=1])],
1298    [check], [PKG_CHECK_MODULES([MHD], [MHD_MODULE],
1299        [lmhd=1],
1300        [AC_MSG_WARN([Building without libmicrohttpd])])],
1301    [SAVE_PKG_CONFIG_PATH=$PKG_CONFIG_PATH
1302     PKG_CONFIG_PATH=$with_microhttpd/lib/pkgconfig
1303     export PKG_CONFIG_PATH
1304     PKG_CHECK_MODULES([MHD], [MHD_MODULE], [lmhd=1])
1305     PKG_CONFIG_PATH=$SAVE_PKG_CONFIG_PATH])
1306 AM_CONDITIONAL(HAVE_MHD, test x$lmhd = x1)
1307 AC_DEFINE_UNQUOTED([HAVE_MHD], $lmhd, [We have libmicrohttpd])
1308
1309 AM_CONDITIONAL(HAVE_JSON, [test x$jansson = x1])
1310
1311 # restore LIBS
1312 LIBS=$SAVE_LIBS
1313
1314 # check for gettext
1315 AM_GNU_GETTEXT([external])
1316 AM_GNU_GETTEXT_VERSION([0.18.1])
1317
1318 # Checks for standard typedefs, structures, and compiler characteristics.
1319 AC_TYPE_PID_T
1320 AC_TYPE_SIZE_T
1321 AC_TYPE_MODE_T
1322 AC_HEADER_TIME
1323 AC_HEADER_STAT
1324 AC_HEADER_STDBOOL
1325 AC_STRUCT_TM
1326
1327 AC_CHECK_MEMBER([struct sockaddr_in.sin_len],
1328    [ AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [Do we have sockaddr_in.sin_len?])
1329    ],
1330    [],
1331    [
1332       #include <sys/types.h>
1333       #include <sys/socket.h>
1334       #include <netinet/in.h>
1335    ])
1336
1337 AC_CHECK_MEMBER([struct sockaddr_un.sun_len],
1338                 [ AC_DEFINE(HAVE_SOCKADDR_UN_SUN_LEN,
1339                             1,
1340                             [Do we have sockaddr_un.sun_len?])],
1341                 [],
1342                 [
1343                 #include <sys/types.h>
1344                 #include <sys/socket.h>
1345                 #include <sys/un.h>
1346                 ])
1347
1348
1349
1350 # Checks for library functions.
1351 AC_FUNC_CLOSEDIR_VOID
1352 AC_FUNC_FORK
1353 AC_PROG_GCC_TRADITIONAL
1354 AC_FUNC_MEMCMP
1355 AC_FUNC_SELECT_ARGTYPES
1356 AC_FUNC_CHOWN
1357
1358 AC_TYPE_SIGNAL
1359 AC_FUNC_STAT
1360 AC_FUNC_STRFTIME
1361 AC_FUNC_VPRINTF
1362 AC_HEADER_SYS_WAIT
1363 AC_TYPE_OFF_T
1364 AC_TYPE_UID_T
1365 AC_CHECK_FUNCS([atoll stat64 strnlen mremap getrlimit setrlimit sysconf initgroups strndup gethostbyname2 getpeerucred getpeereid setresuid $funcstocheck getifaddrs freeifaddrs getresgid mallinfo malloc_size malloc_usable_size getrusage random srandom stat statfs statvfs wait4])
1366
1367 # restore LIBS
1368 LIBS=$SAVE_LIBS
1369
1370 GN_INTLINCL=""
1371 GN_LIBINTL="$LTLIBINTL"
1372 AC_ARG_ENABLE(framework,
1373               [AS_HELP_STRING([--enable-framework],[enable Mac OS X framework build helpers])],
1374               enable_framework_build=$enableval)
1375 AM_CONDITIONAL(WANT_FRAMEWORK,
1376                test x$enable_framework_build = xyes)
1377 AS_IF([test x$enable_framework_build = xyes],
1378       [AC_DEFINE([FRAMEWORK_BUILD],
1379                  1,
1380                  [Build a Mac OS X Framework])
1381       GN_INTLINCL='-I$(top_srcdir)/src/intlemu'
1382       GN_LIBINTL='$(top_builddir)/src/intlemu/libintlemu.la -framework CoreFoundation'
1383       AC_LIB_APPENDTOVAR([CPPFLAGS],
1384                          [$GN_INTLINCL])])
1385
1386 GN_LIB_LDFLAGS="-export-dynamic -no-undefined"
1387 GN_PLUGIN_LDFLAGS="-export-dynamic -avoid-version -module -no-undefined"
1388
1389 AC_SUBST(GN_LIB_LDFLAGS)
1390 AC_SUBST(GN_PLUGIN_LDFLAGS)
1391 AC_SUBST(GN_INTLINCL)
1392 AC_SUBST(GN_LIBINTL)
1393
1394 AC_SUBST(CPPFLAGS)
1395 AC_SUBST(LIBS)
1396 AC_SUBST(LDFLAGS)
1397 AC_SUBST(EXT_LIB_PATH)
1398 AC_SUBST(EXT_LIBS)
1399
1400 AC_SUBST(LIBPREFIX)
1401 AC_SUBST(DLLDIR)
1402 AC_SUBST(EXT_LIB_PATH)
1403
1404 DATAROOTDIR=$datarootdir
1405 AC_SUBST(DATAROOTDIR)
1406
1407 # test for sudo
1408 AC_MSG_CHECKING(for sudo)
1409 #AC_CHECK_PROGS(SUDO_BINARY, [sudo], false)
1410 #AM_CONDITIONAL(HAVE_SUDO, test x$SUDO_BINARY != xfalse)
1411 AC_ARG_WITH(sudo,
1412            [  --with-sudo=PATH       path to sudo binary (or just yes)],
1413            [AC_MSG_RESULT("$with_sudo")
1414             AS_CASE([$with_sudo],
1415                     [no],[SUDO_BINARY=],
1416                     [yes],[SUDO_BINARY=sudo],
1417                     [SUDO_BINARY=$with_sudo])],
1418            [AC_MSG_RESULT([no])])
1419 AC_SUBST(SUDO_BINARY)
1420 AM_CONDITIONAL([HAVE_SUDO],
1421               [test "x$SUDO_BINARY" != "x" -o -w /])
1422
1423 # test for doas
1424 AC_MSG_CHECKING(for doas)
1425 AC_CHECK_PROGS(DOAS_BINARY, [doas], false)
1426 AM_CONDITIONAL(HAVE_DOAS_BINARY, test x$DOAS_BINARY != xfalse)
1427
1428 # test for gnunetdns group name
1429 GNUNETDNS_GROUP=gnunetdns
1430 AC_MSG_CHECKING(for gnunetdns group name)
1431 AC_ARG_WITH(gnunetdns,
1432             [  --with-gnunetdns=GRPNAME       name for gnunetdns group],
1433             [AC_MSG_RESULT("$with_gnunetdns")
1434              AS_CASE([$with_gnunetdns],
1435                      [no],[GNUNETDNS_GROUP=gnunet],
1436                      [yes],[GNUNETDNS_GROUP=gnunetdns],
1437                      [GNUNETDNS_GROUP=$with_gnunetdns])],
1438             [AC_MSG_RESULT([gnunetdns])])
1439 AC_SUBST(GNUNETDNS_GROUP)
1440
1441
1442
1443 # gnutls
1444 gnutls=0
1445 gnutls_dane=0
1446 AC_MSG_CHECKING(for gnutls)
1447 AC_ARG_WITH(gnutls,
1448             [  --with-gnutls=PFX   base of gnutls installation],
1449             [AC_MSG_RESULT([$with_gnutls])
1450              AS_CASE([$with_gnutls],
1451                      [no],[],
1452                      [yes],
1453                      [AC_CHECK_HEADERS([gnutls/abstract.h],
1454                                        AC_CHECK_LIB([gnutls],
1455                                                     [gnutls_priority_set],
1456                                                     gnutls=true))
1457                       AC_CHECK_HEADERS([gnutls/dane.h],
1458                                        AC_CHECK_LIB([gnutls-dane],
1459                                                     [dane_verify_crt_raw],
1460                                                     gnutls_dane=1))],
1461
1462         [LDFLAGS="-L$with_gnutls/lib $LDFLAGS"
1463         CPPFLAGS="-I$with_gnutls/include $CPPFLAGS"
1464         AC_CHECK_HEADERS([gnutls/abstract.h],
1465             AC_CHECK_LIB([gnutls], [gnutls_priority_set],
1466               EXT_LIB_PATH="-L$with_gnutls/lib $EXT_LIB_PATH"
1467               gnutls=true))
1468         AC_CHECK_HEADERS([gnutls/dane.h],
1469             AC_CHECK_LIB([gnutls-dane], [dane_verify_crt_raw],
1470               gnutls_dane=1))
1471       ])
1472    ],
1473    [AC_MSG_RESULT([--with-gnutls not specified])
1474     AC_CHECK_HEADERS([gnutls/abstract.h],
1475         AC_CHECK_LIB([gnutls], [gnutls_priority_set],
1476           gnutls=true))
1477     AC_CHECK_HEADERS([gnutls/dane.h],
1478         AC_CHECK_LIB([gnutls-dane], [dane_verify_crt_raw],
1479                      gnutls_dane=1))
1480    ])
1481 AM_CONDITIONAL(HAVE_GNUTLS, test x$gnutls = xtrue)
1482 AC_DEFINE_UNQUOTED([HAVE_GNUTLS], $gnutls, [We have GnuTLS])
1483 AM_CONDITIONAL(HAVE_GNUTLS_DANE, test x$gnutls_dane = x1)
1484 AC_DEFINE_UNQUOTED([HAVE_GNUTLS_DANE], $gnutls_dane, [We have GnuTLS with DANE support])
1485
1486
1487
1488 # Test if we are building for superMUC
1489 AC_MSG_CHECKING(if GNUnet is being configured to run on the SuperMUC)
1490 AC_ARG_ENABLE([supermuc],
1491     [AS_HELP_STRING([--enable-supermuc],
1492        [build GNUnet with support to run on the SuperMUC (default is NO)])],
1493     [AS_IF([test "x$enable_supermuc" = "xno"],
1494       [supermuc=0],
1495       [supermuc=1])],
1496     [supermuc=0
1497      enable_supermuc=no])
1498 AC_MSG_RESULT($enable_SUPERMUC)
1499 AM_CONDITIONAL([ENABLE_SUPERMUC], [test "x$supermuc" = "x1"])
1500 AC_DEFINE_UNQUOTED([ENABLE_SUPERMUC], [$supermuc], [Build with support for SuperMUC])
1501
1502 # Check if NSE has to send timestamp information to testbed logger for
1503 # generating histogram of messages received
1504 AC_MSG_CHECKING(if NSE has to send timestamp information to testbed logger)
1505 AC_ARG_ENABLE([nse-histogram],
1506     [AS_HELP_STRING([--enable-nse-histogram],
1507        [have NSE send timestamp information to testbed logger for generating
1508        histogram of received messages.  NOT useful for production (default is
1509        NO)])],
1510     [AS_IF([test "x$enableval" = "xno"],
1511       [nse_histogram=0],
1512       [nse_histogram=1])],
1513     [nse_histogram=0
1514      enable_nse_histogram=no])
1515 AC_MSG_RESULT($enable_nse_histogram)
1516 AM_CONDITIONAL([ENABLE_NSE_HISTOGRAM], [test "x$nse_histogram" = "x1"])
1517 AC_DEFINE_UNQUOTED([ENABLE_NSE_HISTOGRAM], [$nse_histogram],
1518                    [have NSE send timestamp information to testbed logger])
1519
1520 # should 'make check' run tests?
1521 AC_MSG_CHECKING(whether to run tests)
1522 AC_ARG_ENABLE([testruns],
1523    [AS_HELP_STRING([--disable-testruns], [disable running tests on make check (default is YES)])],
1524    [enable_tests_run=${enableval}],
1525    [enable_tests_run=yes])
1526 AC_MSG_RESULT($enable_test_run)
1527 AM_CONDITIONAL([ENABLE_TEST_RUN], [test "x$enable_tests_run" = "xyes"])
1528
1529
1530 AC_MSG_CHECKING([whether to compile in benchmarks (currently for http and crypto)])
1531 AC_ARG_ENABLE([benchmark],
1532    [AS_HELP_STRING([--enable-benchmark], [enable benchmarking])],
1533    [enable_benchmark=${enableval}],
1534    [enable_benchmark=no])
1535 AC_MSG_RESULT($enable_benchmark)
1536 AS_IF([test "x$enable_benchmark" = "xyes"],
1537       [AC_DEFINE_UNQUOTED(ENABLE_BENCHMARK,1,[Benchmarks are enabled])])
1538 AM_CONDITIONAL([ENABLE_BENCHMARK], [test "x$enable_benchmark" = "xyes"])
1539
1540
1541 # should expensive tests be run?
1542 AC_MSG_CHECKING(whether to run expensive tests)
1543 AC_ARG_ENABLE([expensivetests],
1544    [AS_HELP_STRING([--enable-expensivetests], [enable running expensive testcases])],
1545    [enable_expensive=${enableval}],
1546    [enable_expensive=no])
1547 AC_MSG_RESULT($enable_expensive)
1548 AM_CONDITIONAL([HAVE_EXPENSIVE_TESTS], [test "x$enable_expensive" = "xyes"])
1549
1550 # should ports be open for Java services?
1551 AC_MSG_CHECKING(whether to enable ports for gnunet-java)
1552 AC_ARG_ENABLE([javaports],
1553    [AS_HELP_STRING([--enable-javaports], [use non-zero ports for services with Java bindings (default is NO)])],
1554    [enable_java_ports=${enableval}],
1555    [enable_java_ports=no])
1556 AC_MSG_RESULT($enable_java_ports)
1557 AS_IF([test "x$enable_java_ports" = "xyes"],
1558  [JAVAPORT=""],
1559  [JAVAPORT="$UNIXONLY"])
1560 AC_SUBST(JAVAPORT)
1561
1562 # should benchmarks be run?
1563 AC_MSG_CHECKING(whether to run benchmarks during make check)
1564 AC_ARG_ENABLE([benchmarks],
1565    [AS_HELP_STRING([--enable-benchmarks], [enable running benchmarks during make check])],
1566    [enable_benchmarks=${enableval}],
1567    [enable_benchmarks=no])
1568 AC_MSG_RESULT($enable_benchmarks)
1569 AM_CONDITIONAL([HAVE_BENCHMARKS], [test "x$enable_benchmarks" = "xyes"])
1570
1571 # should gnunet-testing be compiled
1572 AC_MSG_CHECKING(wether to compile gnunet-testing)
1573 AC_ARG_ENABLE([testing],
1574    [AS_HELP_STRING([--disable-testing], [do not build gnunet-testing])],
1575    [enable_testing=${enableval}],
1576    [enable_testing=yes])
1577 AC_MSG_RESULT($enable_testing)
1578 AM_CONDITIONAL([HAVE_TESTING], [test "x$enable_testing" = "xyes"])
1579
1580 # should experimental code be compiled (code that may not yet compile)?
1581 AC_MSG_CHECKING(whether to compile experimental code)
1582 AC_ARG_ENABLE([experimental],
1583    [AS_HELP_STRING([--enable-experimental], [enable compiling experimental code])],
1584    [enable_experimental=${enableval}],
1585    [enable_experimental=no])
1586 AC_MSG_RESULT($enable_experimental)
1587 AM_CONDITIONAL([HAVE_EXPERIMENTAL], [test "x$enable_experimental" = "xyes"])
1588
1589 # should malicious code be compiled (should only be used for testing)?
1590 AC_MSG_CHECKING(whether to compile malicious code)
1591 AC_ARG_ENABLE([malicious],
1592    [AS_HELP_STRING([--enable-malicious], [enable compiling malicious code])],
1593    [AS_IF([test "x$enableval" = "xno"],
1594      [malicious=0],
1595      [malicious=1])],
1596    [malicious=0
1597     enable_malicious=no])
1598 AC_MSG_RESULT($enable_malicious)
1599 AM_CONDITIONAL([ENABLE_MALICIOUS], [test 1=$malicious])
1600 AC_DEFINE_UNQUOTED([ENABLE_MALICIOUS], [$malicious],
1601                    [enable compilation of malicious code])
1602
1603 # should services be started on demand when needed?
1604 # Some services may choose to never start by default
1605 # and it is up to the service/module developer to decide
1606 # by having "START_ON_DEMAND = NO" instead of
1607 # "START_ON_DEMAND = @START_ON_DEMAND@"
1608 # in the service/module's conf.in file.
1609 # See also IMMEDIATE_START for an unconditional immediate start.
1610 START_ON_DEMAND="YES"
1611 AC_MSG_CHECKING(whether to start peer's services on demand by default)
1612 AC_ARG_ENABLE([autostart],
1613    [AS_HELP_STRING([--disable-autostart], [do not start peer's services by default])],
1614    [enable_autostart=${enableval}
1615     AS_IF([test "x$enable_autostart" = "xno"],
1616       [START_ON_DEMAND="NO"])
1617    ],
1618    [enable_autostart=yes])
1619 AC_MSG_RESULT($enable_autostart)
1620 #AM_CONDITIONAL([HAVE_START_ON_DEMAND], [test "x$enable_autostart" = "xyes"])
1621 AC_SUBST(START_ON_DEMAND)
1622
1623 # should memory statistics be kept (very expensive CPU-wise!)
1624 AC_MSG_CHECKING(whether to create expensive statistics on memory use)
1625 AC_ARG_ENABLE([heapstats],
1626    [AS_HELP_STRING([--enable-heapstats], [enable expensive heap statistics])],
1627    [enable_heapstats=1],
1628    [enable_heapstats=0])
1629 AC_MSG_RESULT($enable_heapstats)
1630 AC_DEFINE_UNQUOTED([ENABLE_HEAP_STATISTICS],$enable_heapstats,[enable expensive heap statistics])
1631
1632
1633 # Check if the __thread storage class for
1634 # thread-local storage is available.
1635 AC_MSG_CHECKING(whether __thread is supported)
1636 AC_LINK_IFELSE(
1637 [AC_LANG_PROGRAM([#include <stdlib.h>
1638                    #undef __thread
1639                    static __thread int a = 1;],
1640                   [exit(a-1);])],
1641  [have_thread_local_gcc=1],[have_thread_local_gcc=0])
1642 AC_DEFINE_UNQUOTED([HAVE_THREAD_LOCAL_GCC],$have_thread_local_gcc,[Define this if __thread is supported])
1643 AS_IF([test "x$have_thread_local_gcc" = "x1"],
1644       [AC_MSG_RESULT(yes)],
1645       [AC_MSG_RESULT(no)])
1646
1647 # gcov compilation
1648 AC_MSG_CHECKING(whether to compile with support for code coverage analysis)
1649 AC_ARG_ENABLE([coverage],
1650               AS_HELP_STRING([--enable-coverage],
1651                              [compile the library with code coverage support]),
1652               [use_gcov=${enableval}],
1653               [use_gcov=no])
1654 AC_MSG_RESULT($use_gcov)
1655 AM_CONDITIONAL([USE_COVERAGE], [test "x$use_gcov" = "xyes"])
1656
1657
1658 # version info
1659 # TODO: git blame says this predates our switch to git.
1660 # git-svn should be adjusted to simply git, or
1661 # an external script that does the job.
1662 AC_PATH_PROG(svnversioncommand, svnversion)
1663 AC_PATH_PROG(gitcommand, git)
1664 AC_MSG_CHECKING(for source being under a VCS)
1665
1666
1667 # version info
1668 AC_PATH_PROG(gitcommand, git)
1669 AC_MSG_CHECKING(for source being under a VCS)
1670 git_version=
1671 AS_IF([test ! "X$gitcommand" = "X"],
1672 [
1673   git_version=$(cd $srcdir ; git rev-list --full-history --all --abbrev-commit | head -n 1 2>/dev/null)
1674 ])
1675 AS_IF([test "X$git_version" = "X"],
1676   [
1677     vcs_name="no"
1678     vcs_version="\"release\""
1679   ],
1680   [
1681     vcs_name="yes, git-svn"
1682     vcs_version="\"git-$git_version\""
1683   ])
1684 AC_MSG_RESULT($vcs_name)
1685
1686 AC_MSG_CHECKING(VCS version)
1687 AC_MSG_RESULT($vcs_version)
1688 AC_DEFINE_UNQUOTED(VCS_VERSION, [$vcs_version], [VCS revision/hash or tarball version])
1689
1690 AC_CONFIG_FILES([
1691 Makefile
1692 contrib/Makefile
1693 contrib/hellos/Makefile
1694 contrib/services/Makefile
1695 contrib/services/openrc/Makefile
1696 contrib/services/systemd/Makefile
1697 contrib/scripts/Makefile
1698 contrib/scripts/gnunet-logread/Makefile
1699 doc/Makefile
1700 doc/man/Makefile
1701 doc/doxygen/Makefile
1702 doc/handbook/Makefile
1703 doc/tutorial/Makefile
1704 lint/Makefile
1705 m4/Makefile
1706 po/Makefile.in
1707 src/Makefile
1708 src/arm/Makefile
1709 src/arm/arm.conf
1710 src/ats/Makefile
1711 src/ats/ats.conf
1712 src/ats-tool/Makefile
1713 src/ats-tests/Makefile
1714 src/auction/Makefile
1715 src/block/Makefile
1716 src/cadet/Makefile
1717 src/cadet/cadet.conf
1718 src/core/Makefile
1719 src/core/core.conf
1720 src/consensus/Makefile
1721 src/consensus/consensus.conf
1722 src/conversation/Makefile
1723 src/conversation/conversation.conf
1724 src/curl/Makefile
1725 src/datacache/Makefile
1726 src/datastore/Makefile
1727 src/datastore/datastore.conf
1728 src/dht/Makefile
1729 src/dht/dht.conf
1730 src/dns/Makefile
1731 src/dns/dns.conf
1732 src/exit/Makefile
1733 src/fragmentation/Makefile
1734 src/fs/Makefile
1735 src/fs/fs.conf
1736 src/gns/Makefile
1737 src/gns/gns.conf
1738 src/gns/nss/Makefile
1739 src/gnsrecord/Makefile
1740 src/hello/Makefile
1741 src/identity/Makefile
1742 src/identity/identity.conf
1743 src/abd/Makefile
1744 src/abd/abd.conf
1745 src/include/Makefile
1746 src/integration-tests/Makefile
1747 src/json/Makefile
1748 src/hostlist/Makefile
1749 src/my/Makefile
1750 src/mysql/Makefile
1751 src/namecache/Makefile
1752 src/namecache/namecache.conf
1753 src/namestore/Makefile
1754 src/namestore/namestore.conf
1755 src/nat/Makefile
1756 src/nat/nat.conf
1757 src/nat-auto/Makefile
1758 src/nat-auto/nat-auto.conf
1759 src/nse/Makefile
1760 src/nse/nse.conf
1761 src/nt/Makefile
1762 src/peerinfo/Makefile
1763 src/peerinfo/peerinfo.conf
1764 src/peerinfo-tool/Makefile
1765 src/peerstore/Makefile
1766 src/peerstore/peerstore.conf
1767 src/pq/Makefile
1768 src/pt/Makefile
1769 src/regex/Makefile
1770 src/regex/regex.conf
1771 src/revocation/Makefile
1772 src/revocation/revocation.conf
1773 src/rps/Makefile
1774 src/rps/rps.conf
1775 src/secretsharing/Makefile
1776 src/secretsharing/secretsharing.conf
1777 src/scalarproduct/Makefile
1778 src/scalarproduct/scalarproduct.conf
1779 src/set/Makefile
1780 src/set/set.conf
1781 src/sq/Makefile
1782 src/statistics/Makefile
1783 src/statistics/statistics.conf
1784 src/template/Makefile
1785 src/testbed/Makefile
1786 src/testbed/testbed.conf
1787 src/testbed-logger/Makefile
1788 src/testbed-logger/testbed-logger.conf
1789 src/testing/Makefile
1790 src/topology/Makefile
1791 src/transport/Makefile
1792 src/transport/transport.conf
1793 src/util/Makefile
1794 src/util/resolver.conf
1795 src/vpn/Makefile
1796 src/vpn/vpn.conf
1797 src/zonemaster/Makefile
1798 src/zonemaster/zonemaster.conf
1799 src/rest/Makefile
1800 src/abe/Makefile
1801 src/reclaim-attribute/Makefile
1802 src/reclaim/Makefile
1803 pkgconfig/Makefile
1804 pkgconfig/gnunetarm.pc
1805 pkgconfig/gnunetats.pc
1806 pkgconfig/gnunetblock.pc
1807 pkgconfig/gnunetcadet.pc
1808 pkgconfig/gnunetconsensus.pc
1809 pkgconfig/gnunetconversation.pc
1810 pkgconfig/gnunetcore.pc
1811 pkgconfig/gnunetdatacache.pc
1812 pkgconfig/gnunetdatastore.pc
1813 pkgconfig/gnunetdht.pc
1814 pkgconfig/gnunetdns.pc
1815 pkgconfig/gnunetenv.pc
1816 pkgconfig/gnunetfragmentation.pc
1817 pkgconfig/gnunetfs.pc
1818 pkgconfig/gnunetgns.pc
1819 pkgconfig/gnunethello.pc
1820 pkgconfig/gnunetidentity.pc
1821 pkgconfig/gnunetmicrophone.pc
1822 pkgconfig/gnunetmysql.pc
1823 pkgconfig/gnunetnamestore.pc
1824 pkgconfig/gnunetnat.pc
1825 pkgconfig/gnunetnse.pc
1826 pkgconfig/gnunetpeerinfo.pc
1827 pkgconfig/gnunetpq.pc
1828 pkgconfig/gnunetregex.pc
1829 pkgconfig/gnunetrevocation.pc
1830 pkgconfig/gnunetrps.pc
1831 pkgconfig/gnunetscalarproduct.pc
1832 pkgconfig/gnunetset.pc
1833 pkgconfig/gnunetspeaker.pc
1834 pkgconfig/gnunetstatistics.pc
1835 pkgconfig/gnunettestbed.pc
1836 pkgconfig/gnunettesting.pc
1837 pkgconfig/gnunettransport.pc
1838 pkgconfig/gnunetutil.pc
1839 pkgconfig/gnunetvpn.pc
1840 ])
1841 AC_OUTPUT
1842
1843
1844 # FIXME: `some modules' -> be more specific which exact modules.
1845
1846 # java ports
1847 AS_IF([test "x$enable_java_ports" = "xyes"],
1848       [AC_MSG_NOTICE([NOTICE: Opening ports for gnunet-java bindings by default.])])
1849
1850 ####
1851 #### Lasciate ogne speranza, voi ch'intrate
1852 ####
1853 #### This could be moved to the checks above,
1854 #### but for now let's keep it here.
1855 ####
1856
1857 # -- print message regarding enabled experimental features
1858 AS_IF([test "x$enable_experimental" = "xyes"],
1859       [experimental_msg="experimental features enabled"])
1860 # -- OSX Framework
1861 AS_IF([test "$enable_framework_build" = "yes"],
1862       [macosx_framework_msg="yes"],
1863       [macosx_framework_msg="no"])
1864 # -- libidn 2
1865 AS_IF([test "x$working_libidn2" = x1],
1866       [libidn2_msg="libidn2"])
1867 # -- libidn 1
1868 AS_IF([test "x$working_libidn1" = x1],
1869       [libidn1_msg="libidn1"])
1870 # -- texi2mdoc
1871 AS_IF([test "x$texi2mdoc_generation" = x1],
1872       [mdoc_msg="yes"],
1873       [mdoc_msg="no"])
1874 # -- texinfo
1875 AS_IF([test "x$makeinfo" != "x1"],
1876       [texinfo_msg="no"],
1877       [texinfo_msg="yes"])
1878 # -- conversation
1879 AS_IF([test "x$conversation_backend" = "xnone"],
1880       [AS_IF([test "x$pulse" != "x1"],
1881              [AC_MSG_NOTICE([WARNING: libpulse(audio) not found, conversation will not be built.])
1882               libpulse_msg="no"],
1883              [libpulse_msg="yes"])
1884        AS_IF([test "x$opus" != "x1"],
1885              [AC_MSG_NOTICE([WARNING: libopus not found, conversation will not be built.])
1886               libopus_msg="no"],
1887              [libopus_msg="yes"])
1888        AS_IF([test "x$gst" != "x1"],
1889              [AC_MSG_NOTICE([WARNING: GStreamer not found, conversation will not be built.])
1890               gstreamer_msg="no"],
1891              [gstreamer_msg="yes"])],
1892       [features_msg="$features_msg conversation"])
1893 # -- interface
1894 interface_msg=`echo $DEFAULT_INTERFACE | tr -d \"`
1895 # -- libmicrohttpd
1896 AS_IF([test "x$lmhd" != "x1"],
1897       [libmicrohttpd_msg="no (optional)"],
1898       [libmicrohttpd_msg="yes"])
1899 # -- jansson
1900 AS_IF([test "x$jansson" = "x0"],
1901       [jansson_msg="no (optional)"],
1902       [jansson_msg="yes"])
1903 # -- libextractor
1904 AS_IF([test "$extractor" != 1],
1905       [AC_MSG_WARN([ERROR: libextractor not found, but various file-sharing functions require it])],
1906       [libextractor_msg="yes"])
1907 # -- libzbar
1908 AS_IF([test "x$zbar" = "x1"],
1909       [libzbar_msg="yes"
1910        features_msg="$features_msg gnunet-qr"],
1911       [AC_MSG_NOTICE([WARNING: zbar not found, gnunet-qr will not be built.])
1912        libzbar_msg="no"])
1913 # -- libgnurl
1914 AS_IF([test "$gnurl" = "0"],
1915       [AS_IF([test "x$curl" = "xfalse"],
1916              [AC_MSG_NOTICE([WARNING: libgnurl not found. http client support will not be compiled.])
1917               AC_MSG_WARN([ERROR: libgnurl not found. hostlist daemon will not be compiled, and you probably WANT the hostlist daemon])
1918               curl_msg="no"],
1919              [AC_MSG_NOTICE([WARNING: libgnurl not found, trying to use libcurl-gnutls instead.])
1920               curl_msg="yes"])],
1921        [gnurl_msg="yes"])
1922 # -- ifconfig
1923 AS_IF([test "$VAR_IFCONFIG_BINARY" = "false"],
1924       [AC_MSG_NOTICE([WARNING: optional ifconfig not found])
1925        ifconfig_msg="no (optional)"],
1926       [ifconfig_msg="yes"])
1927 # -- upnpc
1928 AS_IF([test "$VAR_UPNPC_BINARY" = "false"],
1929       [AC_MSG_NOTICE([WARNING: optional upnpc binary not found])
1930        upnpc_msg="no (optional)"],
1931       [upnpc_msg="yes"])
1932 # -- iptables
1933 AS_IF([test "$VAR_IPTABLES_BINARY" = "false"],
1934       [AC_MSG_NOTICE([WARNING: optional iptables not found])
1935        iptables_msg="no (optional)"],
1936       [iptables_msg="yes"])
1937 # -- bluetooth
1938 AS_IF([test "x$bluetooth" = "x0"],
1939       [AC_MSG_NOTICE([WARNING: optional bluetooth library not found.])
1940        bluetooth_msg="no (optional)"],
1941       [bluetooth_msg="yes"])
1942 # -- gnutls
1943 AS_IF([test x$gnutls != xtrue],
1944       [AC_MSG_NOTICE([WARNING: GnuTLS not found, gnunet-gns-proxy will not be built])
1945        gnutls_msg="no"],
1946       [AS_IF([test "x$gnutls_dane" != "x1"],
1947              [AC_MSG_NOTICE([WARNING: GnuTLS has no DANE support, DANE validation will not be possible])
1948               gnutls_msg="yes (without DANE support)"],
1949              [gnutls_msg="yes (with DANE support)"])])
1950 # -- databases
1951 AS_IF([test $mysqlfail = true]
1952       [AC_MSG_NOTICE([WARNING: optional MySQL not found (or too old)])])
1953 AS_IF([test "$mysql" = true],
1954       [features_msg="$features_msg mysql"
1955        mysql_msg="yes"],
1956       [mysql_msg="no"])
1957 AS_IF([test "$sqlite" = true],
1958       [features_msg="$features_msg sqlite"
1959        sqlite_msg="yes"],
1960       [AC_MSG_ERROR([ERROR: sqlite3 not found, but sqlite3 is required.])
1961        sqlite_msg="no"])
1962 AS_IF([test "$postgres" = true],
1963       [features_msg="$features_msg postgres"
1964        postgres_msg="yes"],
1965       [postgres_msg="no"])
1966 # -- features
1967 # ---- 1. replace spaces with newlines,
1968 # ---- 2. sort the lines,
1969 # ---- 3. replace the newlines with spaces.
1970 features_msg=`echo $features_msg | tr ' ' '\012' | sort | tr '\012' ' '`
1971 AC_SUBST(features_msg)
1972
1973
1974 # The summary
1975 # TODO: reduce the length of the last message block ("the message")
1976
1977 AC_MSG_NOTICE([
1978 GNUnet Configuration
1979
1980 gnunet version:                 ${VERSION}
1981
1982 Host setup:                     ${host}
1983 Install prefix:                 ${prefix}
1984 Compiler:                       ${CC}
1985 CFLAGS:                         ${CFLAGS}
1986 CPPFLAGS:                       ${CPPFLAGS}
1987 LDFLAGS:                        ${LDFLAGS}
1988 LIBS:                           ${LIBS}
1989 Build Target:                   $build_target
1990 Mac OSX framework build:        ${macosx_framework_msg}
1991
1992 Default Interface:              ${interface_msg}
1993
1994 MySQL:                          ${mysql_msg}
1995 PostgreSQL:                     ${postgres_msg}
1996 sqlite3:                        ${sqlite_msg}
1997 gnurl:                          ${gnurl_msg}
1998 curl:                           ${curl_msg}
1999 bluetooth:                      ${bluetooth_msg}
2000 jansson:                        ${jansson_msg}
2001 iptables:                       ${iptables_msg}
2002 ifconfig:                       ${ifconfig_msg}
2003 upnpc:                          ${upnpc_msg}
2004 gnutls:                         ${gnutls_msg}
2005 libzbar:                        ${libzbar_msg}
2006 java:                           ${java_msg}
2007 libmicrohttpd:                  ${libmicrohttpd_msg}
2008 libidn:                         ${libidn1_msg}${libidn2_msg}
2009 libopus:                        ${libopus_msg}
2010 gstreamer:                      ${gstreamer_msg}
2011 libpulse:                       ${libpulse_msg}
2012 libextractor:                   ${libextractor_msg}
2013
2014 texinfo manual:                 ${texinfo_msg}
2015 transpiled mdoc manual:         ${mdoc_msg}
2016
2017 features:                       ${features_msg}
2018 experimental:                   ${experimental_msg}
2019
2020
2021 IMPORTANT:
2022
2023 Please make sure NOW that you have created a user and group 'gnunet'
2024 and additionally a group 'gnunetdns'. On Debian and Ubuntu GNU/Linux,
2025 type:
2026
2027   addgroup gnunetdns
2028   adduser --system --group --disabled-login --home /var/lib/gnunet gnunet
2029
2030 Make sure that '/var/lib/gnunet' is owned (and writable) by user
2031 'gnunet'.  Then, you can compile GNUnet with
2032
2033   make
2034
2035 After that, run (if necessary as 'root')
2036
2037   make install
2038
2039 to install everything.
2040
2041 Each GNUnet user should be added to the 'gnunet' group (may
2042 require fresh login to come into effect):
2043
2044   adduser USERNAME gnunet
2045
2046 (run the above command as root once for each of your users, replacing
2047 "USERNAME" with the respective login names).  If you have a global IP
2048 address, no further configuration is required.
2049
2050 For more detailed setup instructions, see https://docs.gnunet.org/
2051
2052 Optionally, download and compile gnunet-gtk to get a GUI for
2053 file-sharing and configuration.  This is particularly recommended
2054 if your network setup is non-trivial, as gnunet-setup can be
2055 used to test in the GUI if your network configuration is working.
2056 gnunet-setup should be run as the "gnunet" user under X.  As it
2057 does very little with the network, running it as "root" is likely
2058 also harmless.  You can also run it as a normal user, but then
2059 you have to copy ~/.gnunet/gnunet.conf" over to the "gnunet" user's
2060 home directory in the end.
2061
2062 Once you have configured your peer, run (as the 'gnunet' user)
2063
2064   gnunet-arm -s
2065
2066 to start the peer.  You can then run the various GNUnet-tools as
2067 your "normal" user (who should only be in the group 'gnunet').
2068 ])