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 = $target
 605
 606 # check for bluetooth library
 607 bluetooth=0
 608 CHECK_LIBHEADER(BLUETOOTH, bluetooth, ba2str, bluetooth/bluetooth.h,bluetooth=1,)
 609 AM_CONDITIONAL(HAVE_LIBBLUETOOTH, [test "$bluetooth" = 1])
 610 AS_IF([test "$bluetooth" = 1],
 611  [AC_DEFINE([HAVE_LIBBLUETOOTH],[1],[Have bluetooth library])],
 612  [AC_DEFINE([HAVE_LIBBLUETOOTH],[0],[Lacking bluetooth library])])
 613
 614 # check for zbar library
 615 zbar=0
 616 AC_MSG_CHECKING(for libzbar)
 617 AC_ARG_WITH(zbar,
 618    [  --with-zbar=PREFIX (base of libzbar installation)],
 619    [AC_MSG_RESULT([$with_zbar])
 620     AS_CASE([$with_zbar],
 621       [no],[],
 622       [yes],[CHECK_LIBHEADER(ZBAR, zbar, zbar_processor_create, zbar.h,zbar=1,,)],
 623       [
 624         LDFLAGS="-L$with_zbar/lib $LDFLAGS"
 625         CPPFLAGS="-I$with_zbar/include $CPPFLAGS"
 626         AC_CHECK_HEADERS(zbar.h,
 627           AC_CHECK_LIB([zbar], [zbar_processor_create],
 628             EXT_LIB_PATH="-L$with_zbar/lib $EXT_LIB_PATH"
 629             zbar=1))
 630        ])
 631    ],
 632    [AC_MSG_RESULT([--with-zbar not specified])
 633     CHECK_LIBHEADER(ZBAR, zbar, zbar_processor_create, zbar.h,zbar=1,,)])
 634 AM_CONDITIONAL(HAVE_ZBAR, [test "$zbar" = 1])
 635 AS_IF([test "x$zbar" = x1],
 636       [AC_DEFINE([HAVE_ZBAR],[1],[Have zbar library])],
 637       [AC_DEFINE([HAVE_ZBAR],[0],[Lacking zbar library])])
 638
 639 # check for jansson library
 640 jansson=0
 641 AC_MSG_CHECKING(for libjansson)
 642 AC_ARG_WITH(jansson,
 643    [  --with-jansson=PREFIX (base of libjansson installation)],
 644    [AC_MSG_RESULT([$with_jansson])
 645     AS_CASE([$with_jansson],
 646       [no],[],
 647       [yes],[
 648         CHECK_LIBHEADER(JANSSON, jansson, json_loads, jansson.h,jansson=1,)
 649       ],[
 650         LDFLAGS="-L$with_jansson/lib $LDFLAGS"
 651         CPPFLAGS="-I$with_jansson/include $CPPFLAGS"
 652         AC_CHECK_HEADERS(jansson.h,
 653           AC_CHECK_LIB([jansson], [json_loads],
 654             EXT_LIB_PATH="-L$with_jansson/lib $EXT_LIB_PATH"
 655             jansson=1))
 656       ])
 657    ],
 658    [AC_MSG_RESULT([--with-jansson not specified])
 659     CHECK_LIBHEADER(JANSSON, jansson, json_loads, jansson.h,jansson=1,)])
 660 AM_CONDITIONAL(HAVE_JANSSON, [test "$jansson" = 1])
 661 AM_CONDITIONAL(HAVE_JSON, [test x$jansson = x1])
 662 AS_IF([test "x$jansson" = x1],
 663       [AC_DEFINE([HAVE_JANSSON],[1],[Have jansson library])],
 664       [AC_DEFINE([HAVE_JANSSON],[0],[Lacking jansson library])])
 665
 666
 667 # check for libpulse(audio) library
 668 pulse=0
 669 libpulse_msg="no"
 670 CHECK_LIBHEADER(LIBPULSE, pulse, pa_stream_peek, pulse/simple.h,pulse=1,)
 671 AS_IF([test "$pulse" = 1],
 672       [AC_DEFINE([HAVE_PULSE],[1],[Have libpulse(audio) library])
 673        libpulse_msg="yes"])
 674
 675 # check for libopus(audio) library
 676 opus=0
 677 libopus_msg="no"
 678 CHECK_LIBHEADER(LIBOPUS,
 679                 opus,
 680                 opus_decode_float,
 681                 opus/opus.h,
 682                 AC_CHECK_DECL([OPUS_SET_GAIN],[opus=1],[],[[#include <opus/opus.h>]]))
 683 AS_IF([test "x$opus" = x1],
 684       [AC_DEFINE([HAVE_OPUS],[1],[Have libopus library])
 685        libopus_msg="yes"])
 686
 687 # libogg
 688 AC_CHECK_LIB(ogg, ogg_stream_flush_fill,
 689         [AC_CHECK_HEADERS([ogg/ogg.h],
 690           AM_CONDITIONAL(HAVE_OGG, true)
 691           ogg=1
 692           AC_DEFINE(HAVE_OGG,1,[Have ogg]),
 693           AM_CONDITIONAL(HAVE_OGG, false)
 694           ogg=0
 695           AC_DEFINE(HAVE_OGG,0,[lacking ogg]))],
 696         AM_CONDITIONAL(HAVE_OGG, false)
 697         ogg=0)
 698
 699
 700 PKG_CHECK_MODULES([GLIB],
 701                   [glib-2.0],
 702   [# check for pbc library
 703   pbc=0
 704    AC_CHECK_HEADER([pbc/pbc.h],pbc=1)
 705    AC_CHECK_HEADER([gabe.h],abe=1)
 706    AM_CONDITIONAL(HAVE_PBC, [test "x$pbc" = x1])
 707    AM_CONDITIONAL(HAVE_ABE, [test "x$abe" = x1])
 708    AS_IF([test "x$pbc" = x1],
 709      [AC_DEFINE([HAVE_PBC],[1],[Have pbc library])],
 710      [AC_DEFINE([HAVE_PBC],[0],[Lacking pbc library])])
 711    AS_IF([test "x$abe" = x1],
 712     [AC_DEFINE([HAVE_ABE],[1],[Have ABE library])],
 713     [AC_DEFINE([HAVE_ABE],[0],[Lacking ABE library])])],
 714   [# glib-2 not found
 715    AM_CONDITIONAL(HAVE_PBC, [false])
 716    AM_CONDITIONAL(HAVE_ABE, [false])
 717    AC_DEFINE([HAVE_PBC],[0],[Lacking glib library])])
 718
 719 gst=0
 720 gstreamer_msg="no"
 721 PKG_CHECK_MODULES(
 722   [GST],
 723   [glib-2.0 gobject-2.0 gstreamer-1.0 gstreamer-app-1.0 gstreamer-audio-1.0],
 724   [gst=1
 725    gstreamer_msg="yes"],
 726   [gst=0])
 727
 728 # Pulse Audio
 729 AS_IF([test "x$pulse" != "x1" -o "x$opus" != "x1" -o "x$ogg" != "x1"],[
 730  AS_IF([test "x$gst" != "x1"],[
 731   conversation_backend=none
 732   AM_CONDITIONAL(BUILD_PULSE_HELPERS, false)
 733   AM_CONDITIONAL(BUILD_GST_HELPERS, false)
 734   AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
 735  ],[
 736    conversation_backend=gst
 737    AM_CONDITIONAL(BUILD_PULSE_HELPERS, false)
 738    AM_CONDITIONAL(BUILD_GST_HELPERS, true)
 739    AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
 740  ])
 741 ],[
 742  conversation_backend=pulse
 743  AM_CONDITIONAL(BUILD_PULSE_HELPERS, true)
 744  AM_CONDITIONAL(BUILD_GST_HELPERS, false)
 745  AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
 746 ])
 747
 748 AS_IF([test "x$conversation_backend" = "xnone"],
 749       AM_CONDITIONAL(BUILD_CONVERSATION, false),
 750       AM_CONDITIONAL(BUILD_CONVERSATION, true))
 751
 752 # libgnurl
 753 LIBGNURL_CHECK_CONFIG(,7.34.0,gnurl=1,gnurl=0)
 754
 755 SAVE_CPPFLAGS=$CPPFLAGS
 756 CPPFLAGS="$LIBGNURL_CPPFLAGS $LIBCURL_CPPFLAGS $CPPFLAGS"
 757 LIBS="$LIBGNURL $LIBCURL $LIBS"
 758
 759 # libcurl-gnutls
 760 LIBCURL_CHECK_CONFIG(,7.34.0,[curl=true],[curl=false])
 761 AS_IF([test "x$curl" = xtrue],[
 762  AC_CHECK_HEADER([curl/curl.h],
 763   AC_CHECK_DECLS(CURLINFO_TLS_SESSION,[curl=true],[curl=false],[[#include <curl/curl.h>]]),
 764   [curl=false])
 765  # need libcurl-gnutls.so, everything else is not acceptable
 766  AC_CHECK_LIB([curl-gnutls],[curl_easy_getinfo],,[curl=false])
 767  # cURL must support CURLINFO_TLS_SESSION, version >= 7.34
 768 ])
 769
 770 # libcurl and libgnurl should be mutually exclusive
 771 AS_IF([test "$gnurl" = 1],
 772       [AM_CONDITIONAL(HAVE_LIBGNURL, true)
 773        AC_DEFINE([HAVE_LIBGNURL],[1],[Have libgnurl])
 774        AM_CONDITIONAL(HAVE_LIBCURL, false)
 775        AC_DEFINE([HAVE_LIBCURL],[0],[Lacking libcurl])],
 776       [AS_IF([test "$curl" = true],
 777              [AM_CONDITIONAL(HAVE_LIBGNURL, false)
 778               AC_DEFINE([HAVE_LIBGNURL],[0],[Lacking libgnurl])
 779               AM_CONDITIONAL(HAVE_LIBCURL, true)
 780               AC_DEFINE([HAVE_LIBCURL],[1],[Have libcurl])],
 781              [AC_MSG_WARN([ERROR: GNUnet requires libcurl-gnutls or gnurl >= 7.34])
 782               AM_CONDITIONAL(HAVE_LIBGNURL, false)
 783               AC_DEFINE([HAVE_LIBGNURL],[0],[Lacking libgnurl])
 784               AM_CONDITIONAL(HAVE_LIBCURL, false)
 785               AC_DEFINE([HAVE_LIBCURL],[0],[Lacking libcurl])])])
 786
 787 AC_SEARCH_LIBS(__atomic_load_8, atomic, [have_libatomic=1 AC_DEFINE(HAVE_LIBATOMIC,1,[external libatomic])])
 788 AM_CONDITIONAL(HAVE_LIBATOMIC, [test "$have_libatomic" = 1])
 789
 790 # restore LIBS & CPPFLAGS
 791 LIBS=$SAVE_LIBS
 792 CPPFLAGS=$SAVE_CPPFLAGS
 793
 794
 795 AC_CHECK_HEADERS([nss.h],[nss=true],[nss=false])
 796 AS_IF([test x$nss = xfalse],
 797   [
 798         AM_CONDITIONAL(HAVE_GLIBCNSS, false)
 799         AC_MSG_WARN([No GNU libc nss header, will not build NSS plugin])
 800   ],[
 801         NSS_INCLUDES="
 802         #include <nss.h>
 803         "
 804         AC_CHECK_DECL([NSS_STATUS_UNAVAIL],
 805                 [AM_CONDITIONAL(HAVE_GLIBCNSS, true)],
 806                 [AM_CONDITIONAL(HAVE_GLIBCNSS, false)
 807                  AC_MSG_WARN([No nss header fails to define NSS_STATUS_UNAVAIl, will not build NSS plugin])],
 808                 [$NSS_INCLUDES])
 809 ])
 810
 811
 812
 813 # test for kvm and kstat (for CPU stats under BSD/Solaris)
 814 AC_CHECK_LIB([kvm],[kvm_open])
 815 AC_CHECK_LIB([kstat],[kstat_open])
 816
 817
 818 # should the build process be restricted to the code required
 819 # for GNU Taler wallets?
 820 AC_MSG_CHECKING(whether to compile GNU Taler Wallet library ONLY)
 821 AC_ARG_ENABLE([taler-wallet],
 822    [AS_HELP_STRING([--enable-taler-wallet], [only compile for Taler wallet])],
 823    [taler_only=${enableval}],
 824    [taler_only=no])
 825 AC_MSG_RESULT($taler_only)
 826 AS_IF([test "x$taler_only" = "xyes"],
 827 [
 828   AM_CONDITIONAL([TALER_ONLY],true)
 829   AC_DEFINE([TALER_WALLET_ONLY],[1],[Compiling for Taler wallet])
 830 ],[
 831   AM_CONDITIONAL([TALER_ONLY],false)
 832   AC_DEFINE([TALER_WALLET_ONLY],[0],[Canonical compilation])
 833 ])
 834
 835 # test for libextractor
 836 extractor=0
 837 AC_MSG_CHECKING(for libextractor)
 838 AC_ARG_WITH(extractor,
 839    [  --with-extractor=PREFIX (base of libextractor installation)],
 840    [AC_MSG_RESULT([$with_extractor])
 841     AS_CASE([$with_extractor],
 842       [no],[],
 843       [yes],[
 844         AC_CHECK_HEADERS([extractor.h],
 845           AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
 846             extractor=1))
 847       ],[
 848         LDFLAGS="-L$with_extractor/lib $LDFLAGS"
 849         CPPFLAGS="-I$with_extractor/include $CPPFLAGS"
 850         AC_CHECK_HEADERS([extractor.h],
 851           AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
 852             EXT_LIB_PATH="-L$with_extractor/lib $EXT_LIB_PATH"
 853             extractor=1))
 854       ])
 855    ],
 856    [AC_MSG_RESULT([--with-extractor not specified])
 857     AC_CHECK_HEADERS([extractor.h],
 858      AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
 859       extractor=1))])
 860 # restore LIBS
 861 LIBS=$SAVE_LIBS
 862
 863 AS_IF([test "$extractor" != 1],
 864  [
 865  AM_CONDITIONAL(HAVE_LIBEXTRACTOR, false)
 866  AC_DEFINE([HAVE_LIBEXTRACTOR],[0],[Lacking libextractor])
 867  ],[
 868  AM_CONDITIONAL(HAVE_LIBEXTRACTOR, true)
 869  AC_DEFINE([HAVE_LIBEXTRACTOR],[1],[Have libextractor])
 870  ])
 871
 872
 873 AS_IF([test "$taler_only" != yes],[
 874
 875
 876 # Check for libltdl header (#2999)
 877 ltdl=0
 878 AC_MSG_CHECKING(for libltdl)
 879 AC_ARG_WITH(ltdl,
 880    [AS_HELP_STRING([--with-ltdl=PREFIX],[base of libltdl installation])],
 881    [AC_MSG_RESULT([$with_ltdl])
 882     AS_CASE([$with_ltdl],
 883       [no],[],
 884       [yes],[
 885         AC_CHECK_HEADERS(ltdl.h,
 886           AC_CHECK_LIB([ltdl], [lt_dlopenext],
 887             ltdl=1))
 888       ],[
 889         LDFLAGS="-L$with_ltdl/lib $LDFLAGS"
 890         CPPFLAGS="-I$with_ltdl/include $CPPFLAGS"
 891         AC_CHECK_HEADERS(ltdl.h,
 892           AC_CHECK_LIB([ltdl], [lt_dlopenext],
 893             EXT_LIB_PATH="-L$with_ltdl/lib $EXT_LIB_PATH"
 894             ltdl=1))
 895       ])
 896    ],
 897    [AC_MSG_RESULT([--with-ltdl not specified])
 898     AC_CHECK_HEADERS(ltdl.h,
 899      AC_CHECK_LIB([ltdl], [lt_dlopenext],
 900       ltdl=1))])
 901 AS_IF([test x$ltdl = x1],
 902 [
 903  AC_MSG_RESULT([libltdl found])
 904 ],[
 905  AC_MSG_ERROR([GNUnet requires libltdl (from GNU libtool), try installing libltdl-dev])
 906 ])
 907 # restore LIBS
 908 LIBS=$SAVE_LIBS
 909
 910 # libidn and libidn2. The ideal goal is this:
 911 # check for libidn2, if it doesn't exist check for libidn
 912 # if both exist, prefer libidn2
 913 # if none exist, fail and message that libidn or libidn2
 914 # is required with a preference for libidn2.
 915 # TODO: What we have right here can probably be improved.
 916 my_with_libidn=1
 917 AC_ARG_WITH(libidn,
 918             AS_HELP_STRING([--with-libidn=pathname],
 919                            [Support IDN (needs libidn)]),
 920             [],
 921             [withval="yes"])
 922 AS_IF([test x_$withval = x_yes],
 923       [AC_CHECK_HEADERS([idna.h],
 924           AC_MSG_NOTICE([Found idna.h]),
 925           AC_CHECK_HEADERS([idn/idna.h],
 926                AC_MSG_NOTICE([Found idn/idna.h]),
 927                my_with_libidn=0))],
 928       [AS_IF([test x_$withval != x_no],
 929              [CFLAGS="$CFLAGS -I$withval/include"
 930               LDFLAGS="$LDFLAGS -L$withval/lib"
 931               AC_CHECK_HEADERS([idna.h],
 932                 AC_MSG_NOTICE([Found idna.h]),
 933                 [AC_MSG_NOTICE([Failed to find idna.h])
 934                  my_with_libidn=0])],
 935              [my_with_libidn=0])])
 936
 937 my_with_libidn2=1
 938 AC_ARG_WITH(libidn2,
 939             AS_HELP_STRING([--with-libidn2=pathname],
 940                            [Support IDN (needs libidn2)]),
 941             [],
 942             [withval="yes"])
 943 AS_IF([test x_$withval = x_yes],
 944       [AC_CHECK_HEADERS([idn2.h],
 945        AC_MSG_NOTICE([Found idn2.h]),
 946        AC_CHECK_HEADERS([idn2/idn2.h],
 947           AC_MSG_NOTICE([Found idn2/idn2.h]),
 948           [AC_MSG_NOTICE([Failed to find idn2.h])
 949            my_with_libidn2=0]))],
 950       [AS_IF([test x_$withval != x_no],
 951              [CFLAGS="$CFLAGS -I$withval/include"
 952               LDFLAGS="$LDFLAGS -L$withval/lib"],
 953              [my_with_libidn2=0])])
 954
 955 AC_MSG_CHECKING([if libidn can be used])
 956 # Check for LIBIDNs
 957 there_can_only_be_one=1
 958
 959 working_libidn1=0
 960 working_libidn2=0
 961 AS_IF([test x$my_with_libidn2 = x1],
 962       [AC_MSG_NOTICE([Checking for libidn2])
 963        AC_CHECK_LIB([idn2],
 964                     [idn2_to_unicode_8z8z],
 965                     [working_libidn2=1
 966                     LIBS="-lidn2 $LIBS"
 967                     AC_DEFINE_UNQUOTED([HAVE_LIBIDN2],
 968                                        [1],
 969                                        [Define to 1 if you have 'libidn2' (-lidn2).])],
 970                     [MISSING_DEPS="${MISSING_DEPS}${MISSING_SEP}libidn2"
 971                      MISSING_SEP=", "])])
 972 AM_CONDITIONAL(HAVE_LIBIDN2,
 973                test x$working_libidn2 = x1)
 974 AS_IF([test x$working_libidn2 = x0],
 975       [AS_IF([test x$my_with_libidn = x1],
 976              [AC_MSG_NOTICE([Checking for libidn])
 977               AC_CHECK_LIB([idn],
 978                            [idna_to_ascii_8z],
 979                            [working_libidn1=1
 980                            LIBS="-lidn $LIBS"
 981                            AC_DEFINE_UNQUOTED([HAVE_LIBIDN],
 982                                               [1],
 983                                               [Define to 1 if you have 'libidn' (-lidn).])],
 984                            [there_can_only_be_one=0])],
 985              [AS_IF([test x$my_with_libidn2 = x1],
 986                     [there_can_only_be_one=0
 987                      AC_MSG_FAILURE([* There can only be one libidn.
 988                                      * Provide either libidn >= 1.13
 989                                      * or
 990                                      * libidn2 to the configure
 991                                      * script via
 992                                      * --with-libidn2
 993                                      * --with-libidn])])])])
 994 AM_CONDITIONAL(HAVE_LIBIDN, test x$working_libidn1 = x1)
 995
 996 AS_IF([test "$working_libidn1" = 0 -a "$working_libidn2" = 0],
 997       [AC_MSG_ERROR([GNUnet requires libidn (or libidn2)])])
 998
 999 AS_IF([test x$there_can_only_be_one = x0],
1000       [AC_MSG_FAILURE([Missing dependencies: $MISSING_DEPS])])
1001
1002 # test for zlib
1003 SAVE_LDFLAGS=$LDFLAGS
1004 SAVE_CPPFLAGS=$CPPFLAGS
1005 AC_ARG_WITH(zlib,
1006             [  --with-zlib[[=DIR]]       use libz in DIR],
1007             [AS_IF([test "$withval" = "no"],
1008                    [AC_MSG_ERROR([GNUnet requires zlib])],
1009                    [test "$withval" != "yes"],
1010                    [Z_DIR=$withval
1011                     CPPFLAGS="${CPPFLAGS} -I$withval/include"
1012                     LDFLAGS="${LDFLAGS} -L$withval/lib"])])
1013 AC_CHECK_HEADER(zlib.h,
1014                 [],
1015                 [AC_MSG_ERROR([GNUnet requires zlib])])
1016 AC_CHECK_LIB(z,
1017              compress2,
1018              [AC_DEFINE([HAVE_ZLIB],
1019                         [],
1020                         [Have compression library])
1021               if test "x${Z_DIR}" != "x"; then
1022                       Z_CFLAGS="-I${Z_DIR}/include"
1023                       Z_LIBS="-L${Z_DIR}/lib -lz"
1024               else
1025                       Z_LIBS="-lz"
1026               fi],
1027               [AC_MSG_ERROR([GNUnet requires zlib])])
1028 AC_SUBST(Z_CFLAGS)
1029 AC_SUBST(Z_LIBS)
1030
1031 AS_IF([test "$enable_shared" = "no"],
1032       [AC_MSG_ERROR([GNUnet only works with shared libraries. Sorry.])])
1033
1034
1035 # restore LIBS
1036 LIBS=$SAVE_LIBS
1037
1038
1039 # end of taler-only being false
1040 ])
1041
1042
1043 # check for iconv
1044 AM_ICONV
1045
1046 # test for libunistring
1047 gl_LIBUNISTRING
1048 AS_IF([test $HAVE_LIBUNISTRING != yes],
1049       [AC_MSG_ERROR([GNUnet requires libunistring])])
1050
1051 # under emscripten, $gl_libunistring_hexversion is undefined
1052 if test "$taler_only" != yes; then
1053
1054 AS_IF([test "x$gl_libunistring_hexversion" = "x" || test "$gl_libunistring_hexversion" -le 2305],
1055       [AC_MSG_ERROR([GNUnet requires libunistring >= 0.9.1.1])])
1056 fi
1057 AC_CHECK_HEADERS([unistr.h],
1058                  ,
1059                  AC_MSG_ERROR([Compiling GNUnet requires unistr.h (from libunistring) to be installed]))
1060
1061 # restore LIBS
1062 LIBS=$SAVE_LIBS
1063
1064
1065
1066 # Checks for standard header files.
1067 AC_HEADER_DIRENT
1068 AC_HEADER_STDC
1069
1070 # Check for headers that are ALWAYS required
1071 AC_CHECK_HEADERS([fcntl.h math.h errno.h ctype.h limits.h stdio.h stdlib.h string.h unistd.h stdarg.h signal.h locale.h sys/stat.h sys/types.h],,AC_MSG_ERROR([Compiling GNUnet requires standard UNIX headers files: fcntl.h math.h errno.h ctype.h limits.h stdio.h stdlib.h string.h unistd.h stdarg.h signal.h locale.h sys/stat.h sys/types.h]))
1072
1073
1074
1075 # Checks for headers that are only required on some systems or
1076 # opional (and where we do NOT abort if they are not there)
1077 AC_CHECK_HEADERS([stdatomic.h malloc.h malloc/malloc.h malloc/malloc_np.h langinfo.h sys/param.h sys/mount.h sys/statvfs.h sys/select.h sockLib.h sys/mman.h sys/msg.h sys/vfs.h arpa/inet.h fcntl.h libintl.h netdb.h netinet/in.h sys/ioctl.h sys/socket.h sys/time.h unistd.h kstat.h sys/sysinfo.h kvm.h sys/file.h sys/resource.h ifaddrs.h mach/mach.h stddef.h sys/timeb.h argz.h ucred.h sys/ucred.h endian.h sys/endian.h execinfo.h byteswap.h])
1078
1079 # FreeBSD requires this for netinet/in_systm.h and netinet/ip.h
1080 AC_CHECK_HEADERS([sys/types.h netinet/in_systm.h netinet/in.h netinet/ip.h],,,
1081 [#ifdef HAVE_SYS_TYPES_H
1082 #include <sys/types.h>
1083 #endif
1084 #ifdef HAVE_NETINET_IN_SYSTM_H
1085 #include <netinet/in_systm.h>
1086 #endif
1087 #ifdef HAVE_NETINET_IN_H
1088 #include <netinet/in.h>
1089 #endif
1090 ])
1091
1092 SAVE_LDFLAGS=$LDFLAGS
1093 SAVE_CPPFLAGS=$CPPFLAGS
1094
1095 # test for sqlite
1096 sqlite=false
1097 AC_MSG_CHECKING(for SQLite)
1098 AC_ARG_WITH(sqlite,
1099   [  --with-sqlite=PFX       base of SQLite installation],
1100   [AC_MSG_RESULT("$with_sqlite")
1101    AS_CASE([$with_sqlite],
1102      [no],[],
1103      [yes],[
1104       AC_CHECK_HEADERS(sqlite3.h,
1105       sqlite=true)],
1106      [
1107     LDFLAGS="-L$with_sqlite/lib $LDFLAGS"
1108     CPPFLAGS="-I$with_sqlite/include $CPPFLAGS"
1109     AC_CHECK_HEADERS(sqlite3.h,
1110      EXT_LIB_PATH="-L$with_sqlite/lib $EXT_LIB_PATH"
1111      SQLITE_LDFLAGS="-L$with_sqlite/lib"
1112      SQLITE_CPPFLAGS="-I$with_sqlite/include"
1113      sqlite=true)
1114     LDFLAGS=$SAVE_LDFLAGS
1115     CPPFLAGS=$SAVE_CPPFLAGS
1116     ])
1117   ],
1118   [AC_MSG_RESULT([--with-sqlite not specified])
1119     AC_CHECK_HEADERS(sqlite3.h, sqlite=true)])
1120 AM_CONDITIONAL(HAVE_SQLITE, test x$sqlite = xtrue)
1121 AC_SUBST(SQLITE_CPPFLAGS)
1122 AC_SUBST(SQLITE_LDFLAGS)
1123
1124 LDFLAGS=$SAVE_LDFLAGS
1125 CPPFLAGS=$SAVE_CPPFLAGS
1126
1127 # test for postgres
1128 postgres=false
1129 # even running the check for postgres breaks emscripten ...
1130 AS_IF([test "$taler_only" != yes],
1131       [AX_LIB_POSTGRESQL([9.5],
1132         [CPPFLAGS="$CPPFLAGS $POSTGRESQL_CPPFLAGS"
1133          AC_CHECK_HEADERS([libpq-fe.h],
1134          postgres=true)
1135         ],
1136         [AC_MSG_RESULT([no postgres])])])
1137 AM_CONDITIONAL(HAVE_POSTGRESQL, test x$postgres = xtrue)
1138
1139
1140 LDFLAGS=$SAVE_LDFLAGS
1141 CPPFLAGS=$SAVE_CPPFLAGS
1142
1143 # mysql & windows
1144 AC_CHECK_TYPES([sigset_t, off_t], [], [], [#include <sys/types.h>])
1145 AC_CHECK_TYPES([size_t], [], [], [#include <stdio.h>])
1146
1147 # test for mysql
1148 mysql=false
1149 mysqlfail=false
1150 SAVE_LDFLAGS=$LDFLAGS
1151 SAVE_CPPFLAGS=$CPPFLAGS
1152 AC_MSG_CHECKING(for mysql)
1153 AC_ARG_WITH(mysql,
1154   [  --with-mysql=PFX        base of MySQL installation],
1155   [AC_MSG_RESULT([$with_mysql])
1156    AS_CASE([$with_mysql],
1157      [no],[],
1158      [yes|""],[
1159       AC_CHECK_HEADERS(mysql/mysql.h,
1160        AC_CHECK_LIB(mysqlclient, mysql_init,
1161        mysql=true), [], [])
1162      ],[
1163       LDFLAGS="-L$with_mysql/lib -L$with_mysql/lib/mysql $LDFLAGS $ZLIBS"
1164       CPPFLAGS="-I$with_mysql/include $CPPFLAGS"
1165       AC_CHECK_HEADERS(mysql/mysql.h,
1166        AC_CHECK_LIB(mysqlclient, mysql_init,
1167         MYSQL_LDFLAGS="-L$with_mysql/lib -L$with_mysql/lib/mysql"
1168         MYSQL_CPPFLAGS="-I$with_mysql/include"
1169
1170         mysql=true), [], [])
1171      ])
1172   ],
1173   [AC_MSG_RESULT([--with-mysql not specified])
1174    if test -d "/usr/lib64/mysql"; then
1175     MYSQL_LIBDIR="/usr/lib64/mysql"
1176    elif test -d "/usr/lib/mysql"; then
1177     MYSQL_LIBDIR="/usr/lib/mysql"
1178    else
1179     MYSQL_LIBDIR="/usr/lib"
1180    fi
1181    LDFLAGS="-L$MYSQL_LIBDIR $LDFLAGS $ZLIBS"
1182    AC_CHECK_LIB(mysqlclient, mysql_init,
1183     [AC_CHECK_HEADERS(mysql/mysql.h,
1184       MYSQL_LDFLAGS="-L$MYSQL_LIBDIR"
1185       mysql=true
1186
1187      , [], [])])
1188   ])
1189
1190 AC_SUBST(MYSQL_LDFLAGS)
1191 AC_SUBST(MYSQL_CPPFLAGS)
1192
1193 # additional version check for mysql
1194 AC_ARG_ENABLE(mysql-version-check, [  --disable-mysql-version-check  do not check MySQL version],, enable_mysql_version_check=yes)
1195 AS_IF([test "$mysql" = "true" -a "x$enable_mysql_version_check" = "xyes"],
1196  [
1197   AC_MSG_CHECKING(mysql version)
1198   AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1199     [[
1200       #include <mysql/mysql.h>]],
1201     [[
1202       #if (MYSQL_VERSION_ID < 40100)
1203       #error needs at least version >= 4.1
1204       #endif
1205       int main () { return 0; }
1206     ]])
1207     ],mysql=true,mysql=false)
1208   AS_IF([test "$mysql" = "false"],
1209    [
1210     mysqlfail=true
1211     AC_MSG_RESULT([fail, >= 4.1 required])
1212    ],[
1213     AC_MSG_RESULT(ok)
1214    ])
1215 ])
1216 AM_CONDITIONAL(HAVE_MYSQL, test x$mysql = xtrue)
1217 AM_CONDITIONAL(HAVE_MYSQLE, false)
1218 # restore LIBS
1219 LIBS=$SAVE_LIBS
1220 LDFLAGS=$SAVE_LDFLAGS
1221 CPPFLAGS=$SAVE_CPPFLAGS
1222
1223 AS_IF([test "$sqlite" = 0 -a "$mysql" = 0],
1224 [
1225  AC_MSG_ERROR([GNUnet requires SQLite or MySQL])
1226 ])
1227
1228 # libmicrohttpd
1229 lmhd=0
1230 m4_define([MHD_MODULE], [libmicrohttpd >= 0.9.63])
1231 AC_ARG_WITH(microhttpd,
1232    [AS_HELP_STRING([--with-microhttpd[[=PFX]]],
1233        [base of libmicrohttpd installation])],
1234    [],
1235    [with_microhttpd=check])
1236 AS_CASE([$with_microhttpd],
1237    [no], [],
1238    [yes], [PKG_CHECK_MODULES([MHD], [MHD_MODULE], [lmhd=1])],
1239    [check], [PKG_CHECK_MODULES([MHD], [MHD_MODULE],
1240        [lmhd=1],
1241        [AC_MSG_WARN([Building without libmicrohttpd])])],
1242    [SAVE_PKG_CONFIG_PATH=$PKG_CONFIG_PATH
1243     PKG_CONFIG_PATH=$with_microhttpd/lib/pkgconfig
1244     export PKG_CONFIG_PATH
1245     PKG_CHECK_MODULES([MHD], [MHD_MODULE], [lmhd=1])
1246     PKG_CONFIG_PATH=$SAVE_PKG_CONFIG_PATH])
1247 AM_CONDITIONAL(HAVE_MHD, test x$lmhd = x1)
1248 AC_DEFINE_UNQUOTED([HAVE_MHD], $lmhd, [We have libmicrohttpd])
1249
1250 AM_CONDITIONAL(HAVE_JSON, [test x$jansson = x1])
1251
1252 # restore LIBS
1253 LIBS=$SAVE_LIBS
1254
1255 # check for gettext
1256 AM_GNU_GETTEXT([external])
1257 AM_GNU_GETTEXT_VERSION([0.18.1])
1258
1259 # Checks for standard typedefs, structures, and compiler characteristics.
1260 AC_TYPE_PID_T
1261 AC_TYPE_SIZE_T
1262 AC_TYPE_MODE_T
1263 AC_HEADER_TIME
1264 AC_HEADER_STAT
1265 AC_HEADER_STDBOOL
1266 AC_STRUCT_TM
1267
1268 AC_CHECK_MEMBER([struct sockaddr_in.sin_len],
1269    [ AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [Do we have sockaddr_in.sin_len?])
1270    ],
1271    [],
1272    [
1273       #include <sys/types.h>
1274       #include <sys/socket.h>
1275       #include <netinet/in.h>
1276    ])
1277
1278 AC_CHECK_MEMBER([struct sockaddr_un.sun_len],
1279                 [ AC_DEFINE(HAVE_SOCKADDR_UN_SUN_LEN,
1280                             1,
1281                             [Do we have sockaddr_un.sun_len?])],
1282                 [],
1283                 [
1284                 #include <sys/types.h>
1285                 #include <sys/socket.h>
1286                 #include <sys/un.h>
1287                 ])
1288
1289
1290
1291 # Checks for library functions.
1292 AC_FUNC_CLOSEDIR_VOID
1293 AC_FUNC_FORK
1294 AC_PROG_GCC_TRADITIONAL
1295 AC_FUNC_MEMCMP
1296 AC_FUNC_SELECT_ARGTYPES
1297 AC_FUNC_CHOWN
1298
1299 AC_TYPE_SIGNAL
1300 AC_FUNC_STAT
1301 AC_FUNC_STRFTIME
1302 AC_FUNC_VPRINTF
1303 AC_HEADER_SYS_WAIT
1304 AC_TYPE_OFF_T
1305 AC_TYPE_UID_T
1306 AC_CHECK_FUNCS([atoll stat64 strnlen mremap getrlimit setrlimit sysconf initgroups strndup gethostbyname2 getpeerucred getpeereid setresuid $funcstocheck getifaddrs freeifaddrs getresgid mallinfo malloc_size malloc_usable_size getrusage random srandom stat statfs statvfs wait4])
1307
1308 # restore LIBS
1309 LIBS=$SAVE_LIBS
1310
1311 GN_INTLINCL=""
1312 GN_LIBINTL="$LTLIBINTL"
1313 AC_ARG_ENABLE(framework,
1314               [AS_HELP_STRING([--enable-framework],[enable Mac OS X framework build helpers])],
1315               enable_framework_build=$enableval)
1316 AM_CONDITIONAL(WANT_FRAMEWORK,
1317                test x$enable_framework_build = xyes)
1318 AS_IF([test x$enable_framework_build = xyes],
1319       [AC_DEFINE([FRAMEWORK_BUILD],
1320                  1,
1321                  [Build a Mac OS X Framework])
1322       GN_INTLINCL='-I$(top_srcdir)/src/intlemu'
1323       GN_LIBINTL='$(top_builddir)/src/intlemu/libintlemu.la -framework CoreFoundation'
1324       AC_LIB_APPENDTOVAR([CPPFLAGS],
1325                          [$GN_INTLINCL])])
1326
1327 GN_LIB_LDFLAGS="-export-dynamic -no-undefined"
1328 GN_PLUGIN_LDFLAGS="-export-dynamic -avoid-version -module -no-undefined"
1329
1330 AC_SUBST(GN_LIB_LDFLAGS)
1331 AC_SUBST(GN_PLUGIN_LDFLAGS)
1332 AC_SUBST(GN_INTLINCL)
1333 AC_SUBST(GN_LIBINTL)
1334
1335 AC_SUBST(CPPFLAGS)
1336 AC_SUBST(LIBS)
1337 AC_SUBST(LDFLAGS)
1338 AC_SUBST(EXT_LIB_PATH)
1339 AC_SUBST(EXT_LIBS)
1340
1341 AC_SUBST(LIBPREFIX)
1342 AC_SUBST(DLLDIR)
1343 AC_SUBST(EXT_LIB_PATH)
1344
1345 DATAROOTDIR=$datarootdir
1346 AC_SUBST(DATAROOTDIR)
1347
1348 # test for sudo
1349 AC_MSG_CHECKING(for sudo)
1350 #AC_CHECK_PROGS(SUDO_BINARY, [sudo], false)
1351 #AM_CONDITIONAL(HAVE_SUDO, test x$SUDO_BINARY != xfalse)
1352 AC_ARG_WITH(sudo,
1353            [  --with-sudo=PATH       path to sudo binary (or just yes)],
1354            [AC_MSG_RESULT("$with_sudo")
1355             AS_CASE([$with_sudo],
1356                     [no],[SUDO_BINARY=],
1357                     [yes],[SUDO_BINARY=sudo],
1358                     [SUDO_BINARY=$with_sudo])],
1359            [AC_MSG_RESULT([no])])
1360 AC_SUBST(SUDO_BINARY)
1361 AM_CONDITIONAL([HAVE_SUDO],
1362               [test "x$SUDO_BINARY" != "x" -o -w /])
1363
1364 # test for doas
1365 AC_MSG_CHECKING(for doas)
1366 AC_CHECK_PROGS(DOAS_BINARY, [doas], false)
1367 AM_CONDITIONAL(HAVE_DOAS_BINARY, test x$DOAS_BINARY != xfalse)
1368
1369 # test for gnunetdns group name
1370 GNUNETDNS_GROUP=gnunetdns
1371 AC_MSG_CHECKING(for gnunetdns group name)
1372 AC_ARG_WITH(gnunetdns,
1373             [  --with-gnunetdns=GRPNAME       name for gnunetdns group],
1374             [AC_MSG_RESULT("$with_gnunetdns")
1375              AS_CASE([$with_gnunetdns],
1376                      [no],[GNUNETDNS_GROUP=gnunet],
1377                      [yes],[GNUNETDNS_GROUP=gnunetdns],
1378                      [GNUNETDNS_GROUP=$with_gnunetdns])],
1379             [AC_MSG_RESULT([gnunetdns])])
1380 AC_SUBST(GNUNETDNS_GROUP)
1381
1382
1383
1384 # gnutls
1385 gnutls=0
1386 gnutls_dane=0
1387 AC_MSG_CHECKING(for gnutls)
1388 AC_ARG_WITH(gnutls,
1389             [  --with-gnutls=PFX   base of gnutls installation],
1390             [AC_MSG_RESULT([$with_gnutls])
1391              AS_CASE([$with_gnutls],
1392                      [no],[],
1393                      [yes],
1394                      [AC_CHECK_HEADERS([gnutls/abstract.h],
1395                                        AC_CHECK_LIB([gnutls],
1396                                                     [gnutls_priority_set],
1397                                                     gnutls=true))
1398                       AC_CHECK_HEADERS([gnutls/dane.h],
1399                                        AC_CHECK_LIB([gnutls-dane],
1400                                                     [dane_verify_crt_raw],
1401                                                     gnutls_dane=1))],
1402
1403         [LDFLAGS="-L$with_gnutls/lib $LDFLAGS"
1404         CPPFLAGS="-I$with_gnutls/include $CPPFLAGS"
1405         AC_CHECK_HEADERS([gnutls/abstract.h],
1406             AC_CHECK_LIB([gnutls], [gnutls_priority_set],
1407               EXT_LIB_PATH="-L$with_gnutls/lib $EXT_LIB_PATH"
1408               gnutls=true))
1409         AC_CHECK_HEADERS([gnutls/dane.h],
1410             AC_CHECK_LIB([gnutls-dane], [dane_verify_crt_raw],
1411               gnutls_dane=1))
1412       ])
1413    ],
1414    [AC_MSG_RESULT([--with-gnutls not specified])
1415     AC_CHECK_HEADERS([gnutls/abstract.h],
1416         AC_CHECK_LIB([gnutls], [gnutls_priority_set],
1417           gnutls=true))
1418     AC_CHECK_HEADERS([gnutls/dane.h],
1419         AC_CHECK_LIB([gnutls-dane], [dane_verify_crt_raw],
1420                      gnutls_dane=1))
1421    ])
1422 AM_CONDITIONAL(HAVE_GNUTLS, test x$gnutls = xtrue)
1423 AC_DEFINE_UNQUOTED([HAVE_GNUTLS], $gnutls, [We have GnuTLS])
1424 AM_CONDITIONAL(HAVE_GNUTLS_DANE, test x$gnutls_dane = x1)
1425 AC_DEFINE_UNQUOTED([HAVE_GNUTLS_DANE], $gnutls_dane, [We have GnuTLS with DANE support])
1426
1427
1428
1429 # Test if we are building for superMUC
1430 AC_MSG_CHECKING(if GNUnet is being configured to run on the SuperMUC)
1431 AC_ARG_ENABLE([supermuc],
1432     [AS_HELP_STRING([--enable-supermuc],
1433        [build GNUnet with support to run on the SuperMUC (default is NO)])],
1434     [AS_IF([test "x$enable_supermuc" = "xno"],
1435       [supermuc=0],
1436       [supermuc=1])],
1437     [supermuc=0
1438      enable_supermuc=no])
1439 AC_MSG_RESULT($enable_SUPERMUC)
1440 AM_CONDITIONAL([ENABLE_SUPERMUC], [test "x$supermuc" = "x1"])
1441 AC_DEFINE_UNQUOTED([ENABLE_SUPERMUC], [$supermuc], [Build with support for SuperMUC])
1442
1443 # Check if NSE has to send timestamp information to testbed logger for
1444 # generating histogram of messages received
1445 AC_MSG_CHECKING(if NSE has to send timestamp information to testbed logger)
1446 AC_ARG_ENABLE([nse-histogram],
1447     [AS_HELP_STRING([--enable-nse-histogram],
1448        [have NSE send timestamp information to testbed logger for generating
1449        histogram of received messages.  NOT useful for production (default is
1450        NO)])],
1451     [AS_IF([test "x$enableval" = "xno"],
1452       [nse_histogram=0],
1453       [nse_histogram=1])],
1454     [nse_histogram=0
1455      enable_nse_histogram=no])
1456 AC_MSG_RESULT($enable_nse_histogram)
1457 AM_CONDITIONAL([ENABLE_NSE_HISTOGRAM], [test "x$nse_histogram" = "x1"])
1458 AC_DEFINE_UNQUOTED([ENABLE_NSE_HISTOGRAM], [$nse_histogram],
1459                    [have NSE send timestamp information to testbed logger])
1460
1461 # should 'make check' run tests?
1462 AC_MSG_CHECKING(whether to run tests)
1463 AC_ARG_ENABLE([testruns],
1464    [AS_HELP_STRING([--disable-testruns], [disable running tests on make check (default is YES)])],
1465    [enable_tests_run=${enableval}],
1466    [enable_tests_run=yes])
1467 AC_MSG_RESULT($enable_test_run)
1468 AM_CONDITIONAL([ENABLE_TEST_RUN], [test "x$enable_tests_run" = "xyes"])
1469
1470
1471 AC_MSG_CHECKING([whether to compile in benchmarks (currently for http and crypto)])
1472 AC_ARG_ENABLE([benchmark],
1473    [AS_HELP_STRING([--enable-benchmark], [enable benchmarking])],
1474    [enable_benchmark=${enableval}],
1475    [enable_benchmark=no])
1476 AC_MSG_RESULT($enable_benchmark)
1477 AS_IF([test "x$enable_benchmark" = "xyes"],
1478       [AC_DEFINE_UNQUOTED(ENABLE_BENCHMARK,1,[Benchmarks are enabled])])
1479 AM_CONDITIONAL([ENABLE_BENCHMARK], [test "x$enable_benchmark" = "xyes"])
1480
1481
1482 # should expensive tests be run?
1483 AC_MSG_CHECKING(whether to run expensive tests)
1484 AC_ARG_ENABLE([expensivetests],
1485    [AS_HELP_STRING([--enable-expensivetests], [enable running expensive testcases])],
1486    [enable_expensive=${enableval}],
1487    [enable_expensive=no])
1488 AC_MSG_RESULT($enable_expensive)
1489 AM_CONDITIONAL([HAVE_EXPENSIVE_TESTS], [test "x$enable_expensive" = "xyes"])
1490
1491 # should ports be open for Java services?
1492 AC_MSG_CHECKING(whether to enable ports for gnunet-java)
1493 AC_ARG_ENABLE([javaports],
1494    [AS_HELP_STRING([--enable-javaports], [use non-zero ports for services with Java bindings (default is NO)])],
1495    [enable_java_ports=${enableval}],
1496    [enable_java_ports=no])
1497 AC_MSG_RESULT($enable_java_ports)
1498 AS_IF([test "x$enable_java_ports" = "xyes"],
1499  [JAVAPORT=""],
1500  [JAVAPORT="$UNIXONLY"])
1501 AC_SUBST(JAVAPORT)
1502
1503 # should benchmarks be run?
1504 AC_MSG_CHECKING(whether to run benchmarks during make check)
1505 AC_ARG_ENABLE([benchmarks],
1506    [AS_HELP_STRING([--enable-benchmarks], [enable running benchmarks during make check])],
1507    [enable_benchmarks=${enableval}],
1508    [enable_benchmarks=no])
1509 AC_MSG_RESULT($enable_benchmarks)
1510 AM_CONDITIONAL([HAVE_BENCHMARKS], [test "x$enable_benchmarks" = "xyes"])
1511
1512 # should gnunet-testing be compiled
1513 AC_MSG_CHECKING(wether to compile gnunet-testing)
1514 AC_ARG_ENABLE([testing],
1515    [AS_HELP_STRING([--disable-testing], [do not build gnunet-testing])],
1516    [enable_testing=${enableval}],
1517    [enable_testing=yes])
1518 AC_MSG_RESULT($enable_testing)
1519 AM_CONDITIONAL([HAVE_TESTING], [test "x$enable_testing" = "xyes"])
1520
1521 # should experimental code be compiled (code that may not yet compile)?
1522 AC_MSG_CHECKING(whether to compile experimental code)
1523 AC_ARG_ENABLE([experimental],
1524    [AS_HELP_STRING([--enable-experimental], [enable compiling experimental code])],
1525    [enable_experimental=${enableval}],
1526    [enable_experimental=no])
1527 AC_MSG_RESULT($enable_experimental)
1528 AM_CONDITIONAL([HAVE_EXPERIMENTAL], [test "x$enable_experimental" = "xyes"])
1529
1530 # should malicious code be compiled (should only be used for testing)?
1531 AC_MSG_CHECKING(whether to compile malicious code)
1532 AC_ARG_ENABLE([malicious],
1533    [AS_HELP_STRING([--enable-malicious], [enable compiling malicious code])],
1534    [AS_IF([test "x$enableval" = "xno"],
1535      [malicious=0],
1536      [malicious=1])],
1537    [malicious=0
1538     enable_malicious=no])
1539 AC_MSG_RESULT($enable_malicious)
1540 AM_CONDITIONAL([ENABLE_MALICIOUS], [test 1=$malicious])
1541 AC_DEFINE_UNQUOTED([ENABLE_MALICIOUS], [$malicious],
1542                    [enable compilation of malicious code])
1543
1544 # should services be started on demand when needed?
1545 # Some services may choose to never start by default
1546 # and it is up to the service/module developer to decide
1547 # by having "START_ON_DEMAND = NO" instead of
1548 # "START_ON_DEMAND = @START_ON_DEMAND@"
1549 # in the service/module's conf.in file.
1550 # See also IMMEDIATE_START for an unconditional immediate start.
1551 START_ON_DEMAND="YES"
1552 AC_MSG_CHECKING(whether to start peer's services on demand by default)
1553 AC_ARG_ENABLE([autostart],
1554    [AS_HELP_STRING([--disable-autostart], [do not start peer's services by default])],
1555    [enable_autostart=${enableval}
1556     AS_IF([test "x$enable_autostart" = "xno"],
1557       [START_ON_DEMAND="NO"])
1558    ],
1559    [enable_autostart=yes])
1560 AC_MSG_RESULT($enable_autostart)
1561 #AM_CONDITIONAL([HAVE_START_ON_DEMAND], [test "x$enable_autostart" = "xyes"])
1562 AC_SUBST(START_ON_DEMAND)
1563
1564 # should memory statistics be kept (very expensive CPU-wise!)
1565 AC_MSG_CHECKING(whether to create expensive statistics on memory use)
1566 AC_ARG_ENABLE([heapstats],
1567    [AS_HELP_STRING([--enable-heapstats], [enable expensive heap statistics])],
1568    [enable_heapstats=1],
1569    [enable_heapstats=0])
1570 AC_MSG_RESULT($enable_heapstats)
1571 AC_DEFINE_UNQUOTED([ENABLE_HEAP_STATISTICS],$enable_heapstats,[enable expensive heap statistics])
1572
1573
1574 # Check if the __thread storage class for
1575 # thread-local storage is available.
1576 AC_MSG_CHECKING(whether __thread is supported)
1577 AC_LINK_IFELSE(
1578 [AC_LANG_PROGRAM([#include <stdlib.h>
1579                    #undef __thread
1580                    static __thread int a = 1;],
1581                   [exit(a-1);])],
1582  [have_thread_local_gcc=1],[have_thread_local_gcc=0])
1583 AC_DEFINE_UNQUOTED([HAVE_THREAD_LOCAL_GCC],$have_thread_local_gcc,[Define this if __thread is supported])
1584 AS_IF([test "x$have_thread_local_gcc" = "x1"],
1585       [AC_MSG_RESULT(yes)],
1586       [AC_MSG_RESULT(no)])
1587
1588 # gcov compilation
1589 AC_MSG_CHECKING(whether to compile with support for code coverage analysis)
1590 AC_ARG_ENABLE([coverage],
1591               AS_HELP_STRING([--enable-coverage],
1592                              [compile the library with code coverage support]),
1593               [use_gcov=${enableval}],
1594               [use_gcov=no])
1595 AC_MSG_RESULT($use_gcov)
1596 AM_CONDITIONAL([USE_COVERAGE], [test "x$use_gcov" = "xyes"])
1597
1598
1599 # version info
1600 # TODO: git blame says this predates our switch to git.
1601 # git-svn should be adjusted to simply git, or
1602 # an external script that does the job.
1603 AC_PATH_PROG(svnversioncommand, svnversion)
1604 AC_PATH_PROG(gitcommand, git)
1605 AC_MSG_CHECKING(for source being under a VCS)
1606
1607
1608 # version info
1609 AC_PATH_PROG(gitcommand, git)
1610 AC_MSG_CHECKING(for source being under a VCS)
1611 git_version=
1612 AS_IF([test ! "X$gitcommand" = "X"],
1613 [
1614   git_version=$(cd $srcdir ; git rev-list --full-history --all --abbrev-commit | head -n 1 2>/dev/null)
1615 ])
1616 AS_IF([test "X$git_version" = "X"],
1617   [
1618     vcs_name="no"
1619     vcs_version="\"release\""
1620   ],
1621   [
1622     vcs_name="yes, git-svn"
1623     vcs_version="\"git-$git_version\""
1624   ])
1625 AC_MSG_RESULT($vcs_name)
1626
1627 AC_MSG_CHECKING(VCS version)
1628 AC_MSG_RESULT($vcs_version)
1629 AC_DEFINE_UNQUOTED(VCS_VERSION, [$vcs_version], [VCS revision/hash or tarball version])
1630
1631 AC_CONFIG_FILES([
1632 Makefile
1633 contrib/Makefile
1634 contrib/hellos/Makefile
1635 contrib/services/Makefile
1636 contrib/services/openrc/Makefile
1637 contrib/services/systemd/Makefile
1638 contrib/scripts/Makefile
1639 contrib/scripts/gnunet-logread/Makefile
1640 doc/Makefile
1641 doc/man/Makefile
1642 doc/doxygen/Makefile
1643 doc/handbook/Makefile
1644 doc/tutorial/Makefile
1645 lint/Makefile
1646 m4/Makefile
1647 po/Makefile.in
1648 src/Makefile
1649 src/arm/Makefile
1650 src/arm/arm.conf
1651 src/ats/Makefile
1652 src/ats/ats.conf
1653 src/ats-tool/Makefile
1654 src/ats-tests/Makefile
1655 src/auction/Makefile
1656 src/block/Makefile
1657 src/cadet/Makefile
1658 src/cadet/cadet.conf
1659 src/core/Makefile
1660 src/core/core.conf
1661 src/consensus/Makefile
1662 src/consensus/consensus.conf
1663 src/conversation/Makefile
1664 src/conversation/conversation.conf
1665 src/curl/Makefile
1666 src/datacache/Makefile
1667 src/datastore/Makefile
1668 src/datastore/datastore.conf
1669 src/dht/Makefile
1670 src/dht/dht.conf
1671 src/dns/Makefile
1672 src/dns/dns.conf
1673 src/exit/Makefile
1674 src/fragmentation/Makefile
1675 src/fs/Makefile
1676 src/fs/fs.conf
1677 src/gns/Makefile
1678 src/gns/gns.conf
1679 src/gns/nss/Makefile
1680 src/gnsrecord/Makefile
1681 src/hello/Makefile
1682 src/identity/Makefile
1683 src/identity/identity.conf
1684 src/abd/Makefile
1685 src/abd/abd.conf
1686 src/include/Makefile
1687 src/integration-tests/Makefile
1688 src/json/Makefile
1689 src/hostlist/Makefile
1690 src/my/Makefile
1691 src/mysql/Makefile
1692 src/namecache/Makefile
1693 src/namecache/namecache.conf
1694 src/namestore/Makefile
1695 src/namestore/namestore.conf
1696 src/nat/Makefile
1697 src/nat/nat.conf
1698 src/nat-auto/Makefile
1699 src/nat-auto/nat-auto.conf
1700 src/nse/Makefile
1701 src/nse/nse.conf
1702 src/nt/Makefile
1703 src/peerinfo/Makefile
1704 src/peerinfo/peerinfo.conf
1705 src/peerinfo-tool/Makefile
1706 src/peerstore/Makefile
1707 src/peerstore/peerstore.conf
1708 src/pq/Makefile
1709 src/pt/Makefile
1710 src/regex/Makefile
1711 src/regex/regex.conf
1712 src/revocation/Makefile
1713 src/revocation/revocation.conf
1714 src/rps/Makefile
1715 src/rps/rps.conf
1716 src/secretsharing/Makefile
1717 src/secretsharing/secretsharing.conf
1718 src/scalarproduct/Makefile
1719 src/scalarproduct/scalarproduct.conf
1720 src/set/Makefile
1721 src/set/set.conf
1722 src/sq/Makefile
1723 src/statistics/Makefile
1724 src/statistics/statistics.conf
1725 src/template/Makefile
1726 src/testbed/Makefile
1727 src/testbed/testbed.conf
1728 src/testbed-logger/Makefile
1729 src/testbed-logger/testbed-logger.conf
1730 src/testing/Makefile
1731 src/topology/Makefile
1732 src/transport/Makefile
1733 src/transport/transport.conf
1734 src/util/Makefile
1735 src/util/resolver.conf
1736 src/vpn/Makefile
1737 src/vpn/vpn.conf
1738 src/zonemaster/Makefile
1739 src/zonemaster/zonemaster.conf
1740 src/rest/Makefile
1741 src/abe/Makefile
1742 src/reclaim-attribute/Makefile
1743 src/reclaim/Makefile
1744 pkgconfig/Makefile
1745 pkgconfig/gnunetarm.pc
1746 pkgconfig/gnunetats.pc
1747 pkgconfig/gnunetblock.pc
1748 pkgconfig/gnunetcadet.pc
1749 pkgconfig/gnunetconsensus.pc
1750 pkgconfig/gnunetconversation.pc
1751 pkgconfig/gnunetcore.pc
1752 pkgconfig/gnunetdatacache.pc
1753 pkgconfig/gnunetdatastore.pc
1754 pkgconfig/gnunetdht.pc
1755 pkgconfig/gnunetdns.pc
1756 pkgconfig/gnunetenv.pc
1757 pkgconfig/gnunetfragmentation.pc
1758 pkgconfig/gnunetfs.pc
1759 pkgconfig/gnunetgns.pc
1760 pkgconfig/gnunethello.pc
1761 pkgconfig/gnunetidentity.pc
1762 pkgconfig/gnunetmicrophone.pc
1763 pkgconfig/gnunetmysql.pc
1764 pkgconfig/gnunetnamestore.pc
1765 pkgconfig/gnunetnat.pc
1766 pkgconfig/gnunetnse.pc
1767 pkgconfig/gnunetpeerinfo.pc
1768 pkgconfig/gnunetpq.pc
1769 pkgconfig/gnunetregex.pc
1770 pkgconfig/gnunetrevocation.pc
1771 pkgconfig/gnunetrps.pc
1772 pkgconfig/gnunetscalarproduct.pc
1773 pkgconfig/gnunetset.pc
1774 pkgconfig/gnunetspeaker.pc
1775 pkgconfig/gnunetstatistics.pc
1776 pkgconfig/gnunettestbed.pc
1777 pkgconfig/gnunettesting.pc
1778 pkgconfig/gnunettransport.pc
1779 pkgconfig/gnunetutil.pc
1780 pkgconfig/gnunetvpn.pc
1781 ])
1782 AC_OUTPUT
1783
1784
1785 # FIXME: `some modules' -> be more specific which exact modules.
1786
1787 # java ports
1788 AS_IF([test "x$enable_java_ports" = "xyes"],
1789       [AC_MSG_NOTICE([NOTICE: Opening ports for gnunet-java bindings by default.])])
1790
1791 ####
1792 #### Lasciate ogne speranza, voi ch'intrate
1793 ####
1794 #### This could be moved to the checks above,
1795 #### but for now let's keep it here.
1796 ####
1797
1798 # -- print message regarding enabled experimental features
1799 AS_IF([test "x$enable_experimental" = "xyes"],
1800       [experimental_msg="experimental features enabled"])
1801 # -- OSX Framework
1802 AS_IF([test "$enable_framework_build" = "yes"],
1803       [macosx_framework_msg="yes"],
1804       [macosx_framework_msg="no"])
1805 # -- libidn 2
1806 AS_IF([test "x$working_libidn2" = x1],
1807       [libidn2_msg="libidn2"])
1808 # -- libidn 1
1809 AS_IF([test "x$working_libidn1" = x1],
1810       [libidn1_msg="libidn1"])
1811 # -- texi2mdoc
1812 AS_IF([test "x$texi2mdoc_generation" = x1],
1813       [mdoc_msg="yes"],
1814       [mdoc_msg="no"])
1815 # -- texinfo
1816 AS_IF([test "x$makeinfo" != "x1"],
1817       [texinfo_msg="no"],
1818       [texinfo_msg="yes"])
1819 # -- conversation
1820 AS_IF([test "x$conversation_backend" = "xnone"],
1821       [AS_IF([test "x$pulse" != "x1"],
1822              [AC_MSG_NOTICE([WARNING: libpulse(audio) not found, conversation will not be built.])
1823               libpulse_msg="no"],
1824              [libpulse_msg="yes"])
1825        AS_IF([test "x$opus" != "x1"],
1826              [AC_MSG_NOTICE([WARNING: libopus not found, conversation will not be built.])
1827               libopus_msg="no"],
1828              [libopus_msg="yes"])
1829        AS_IF([test "x$gst" != "x1"],
1830              [AC_MSG_NOTICE([WARNING: GStreamer not found, conversation will not be built.])
1831               gstreamer_msg="no"],
1832              [gstreamer_msg="yes"])],
1833       [features_msg="$features_msg conversation"])
1834 # -- interface
1835 interface_msg=`echo $DEFAULT_INTERFACE | tr -d \"`
1836 # -- libmicrohttpd
1837 AS_IF([test "x$lmhd" != "x1"],
1838       [libmicrohttpd_msg="no (optional)"],
1839       [libmicrohttpd_msg="yes"])
1840 # -- jansson
1841 AS_IF([test "x$jansson" = "x0"],
1842       [jansson_msg="no (optional)"],
1843       [jansson_msg="yes"])
1844 # -- libextractor
1845 AS_IF([test "$extractor" != 1],
1846       [AC_MSG_WARN([ERROR: libextractor not found, but various file-sharing functions require it])],
1847       [libextractor_msg="yes"])
1848 # -- libzbar
1849 AS_IF([test "x$zbar" = "x1"],
1850       [libzbar_msg="yes"
1851        features_msg="$features_msg gnunet-qr"],
1852       [AC_MSG_NOTICE([WARNING: zbar not found, gnunet-qr will not be built.])
1853        libzbar_msg="no"])
1854 # -- libgnurl
1855 AS_IF([test "$gnurl" = "0"],
1856       [AS_IF([test "x$curl" = "xfalse"],
1857              [AC_MSG_NOTICE([WARNING: libgnurl not found. http client support will not be compiled.])
1858               AC_MSG_WARN([ERROR: libgnurl not found. hostlist daemon will not be compiled, and you probably WANT the hostlist daemon])
1859               curl_msg="no"],
1860              [AC_MSG_NOTICE([WARNING: libgnurl not found, trying to use libcurl-gnutls instead.])
1861               curl_msg="yes"])],
1862        [gnurl_msg="yes"])
1863 # -- ifconfig
1864 AS_IF([test "$VAR_IFCONFIG_BINARY" = "false"],
1865       [AC_MSG_NOTICE([WARNING: optional ifconfig not found])
1866        ifconfig_msg="no (optional)"],
1867       [ifconfig_msg="yes"])
1868 # -- upnpc
1869 AS_IF([test "$VAR_UPNPC_BINARY" = "false"],
1870       [AC_MSG_NOTICE([WARNING: optional upnpc binary not found])
1871        upnpc_msg="no (optional)"],
1872       [upnpc_msg="yes"])
1873 # -- iptables
1874 AS_IF([test "$VAR_IPTABLES_BINARY" = "false"],
1875       [AC_MSG_NOTICE([WARNING: optional iptables not found])
1876        iptables_msg="no (optional)"],
1877       [iptables_msg="yes"])
1878 # -- bluetooth
1879 AS_IF([test "x$bluetooth" = "x0"],
1880       [AC_MSG_NOTICE([WARNING: optional bluetooth library not found.])
1881        bluetooth_msg="no (optional)"],
1882       [bluetooth_msg="yes"])
1883 # -- gnutls
1884 AS_IF([test x$gnutls != xtrue],
1885       [AC_MSG_NOTICE([WARNING: GnuTLS not found, gnunet-gns-proxy will not be built])
1886        gnutls_msg="no"],
1887       [AS_IF([test "x$gnutls_dane" != "x1"],
1888              [AC_MSG_NOTICE([WARNING: GnuTLS has no DANE support, DANE validation will not be possible])
1889               gnutls_msg="yes (without DANE support)"],
1890              [gnutls_msg="yes (with DANE support)"])])
1891 # -- databases
1892 AS_IF([test $mysqlfail = true]
1893       [AC_MSG_NOTICE([WARNING: optional MySQL not found (or too old)])])
1894 AS_IF([test "$mysql" = true],
1895       [features_msg="$features_msg mysql"
1896        mysql_msg="yes"],
1897       [mysql_msg="no"])
1898 AS_IF([test "$sqlite" = true],
1899       [features_msg="$features_msg sqlite"
1900        sqlite_msg="yes"],
1901       [AC_MSG_ERROR([ERROR: sqlite3 not found, but sqlite3 is required.])
1902        sqlite_msg="no"])
1903 AS_IF([test "$postgres" = true],
1904       [features_msg="$features_msg postgres"
1905        postgres_msg="yes"],
1906       [postgres_msg="no"])
1907 # -- features
1908 # ---- 1. replace spaces with newlines,
1909 # ---- 2. sort the lines,
1910 # ---- 3. replace the newlines with spaces.
1911 features_msg=`echo $features_msg | tr ' ' '\012' | sort | tr '\012' ' '`
1912 AC_SUBST(features_msg)
1913
1914
1915 # The summary
1916 # TODO: reduce the length of the last message block ("the message")
1917
1918 AC_MSG_NOTICE([
1919 GNUnet Configuration
1920
1921 gnunet version:                 ${VERSION}
1922
1923 Host setup:                     ${host}
1924 Install prefix:                 ${prefix}
1925 Compiler:                       ${CC}
1926 CFLAGS:                         ${CFLAGS}
1927 CPPFLAGS:                       ${CPPFLAGS}
1928 LDFLAGS:                        ${LDFLAGS}
1929 LIBS:                           ${LIBS}
1930 Build Target:                   $build_target
1931 Mac OSX framework build:        ${macosx_framework_msg}
1932
1933 Default Interface:              ${interface_msg}
1934
1935 MySQL:                          ${mysql_msg}
1936 PostgreSQL:                     ${postgres_msg}
1937 sqlite3:                        ${sqlite_msg}
1938 gnurl:                          ${gnurl_msg}
1939 curl:                           ${curl_msg}
1940 bluetooth:                      ${bluetooth_msg}
1941 jansson:                        ${jansson_msg}
1942 iptables:                       ${iptables_msg}
1943 ifconfig:                       ${ifconfig_msg}
1944 upnpc:                          ${upnpc_msg}
1945 gnutls:                         ${gnutls_msg}
1946 libzbar:                        ${libzbar_msg}
1947 java:                           ${java_msg}
1948 libmicrohttpd:                  ${libmicrohttpd_msg}
1949 libidn:                         ${libidn1_msg}${libidn2_msg}
1950 libopus:                        ${libopus_msg}
1951 gstreamer:                      ${gstreamer_msg}
1952 libpulse:                       ${libpulse_msg}
1953 libextractor:                   ${libextractor_msg}
1954
1955 texinfo manual:                 ${texinfo_msg}
1956 transpiled mdoc manual:         ${mdoc_msg}
1957
1958 features:                       ${features_msg}
1959 experimental:                   ${experimental_msg}
1960
1961
1962 IMPORTANT:
1963
1964 Please make sure NOW that you have created a user and group 'gnunet'
1965 and additionally a group 'gnunetdns'. On Debian and Ubuntu GNU/Linux,
1966 type:
1967
1968   addgroup gnunetdns
1969   adduser --system --group --disabled-login --home /var/lib/gnunet gnunet
1970
1971 Make sure that '/var/lib/gnunet' is owned (and writable) by user
1972 'gnunet'.  Then, you can compile GNUnet with
1973
1974   make
1975
1976 After that, run (if necessary as 'root')
1977
1978   make install
1979
1980 to install everything.
1981
1982 Each GNUnet user should be added to the 'gnunet' group (may
1983 require fresh login to come into effect):
1984
1985   adduser USERNAME gnunet
1986
1987 (run the above command as root once for each of your users, replacing
1988 "USERNAME" with the respective login names).  If you have a global IP
1989 address, no further configuration is required.
1990
1991 For more detailed setup instructions, see https://docs.gnunet.org/
1992
1993 Optionally, download and compile gnunet-gtk to get a GUI for
1994 file-sharing and configuration.  This is particularly recommended
1995 if your network setup is non-trivial, as gnunet-setup can be
1996 used to test in the GUI if your network configuration is working.
1997 gnunet-setup should be run as the "gnunet" user under X.  As it
1998 does very little with the network, running it as "root" is likely
1999 also harmless.  You can also run it as a normal user, but then
2000 you have to copy ~/.gnunet/gnunet.conf" over to the "gnunet" user's
2001 home directory in the end.
2002
2003 Once you have configured your peer, run (as the 'gnunet' user)
2004
2005   gnunet-arm -s
2006
2007 to start the peer.  You can then run the various GNUnet-tools as
2008 your "normal" user (who should only be in the group 'gnunet').
2009 ])