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"$pulse" = x1],
 729       [AC_DEFINE([HAVE_PULSE],[1],[Have libpulse(audio) library])
 730        libpulse_msg="yes"],
 731       [AC_DEFINE([HAVE_PULSE],[0],[Lacking libpulse(audio) library])
 732        libpulse_msg="no"])
 733
 734 # check for libopus(audio) library
 735 opus=0
 736 libopus_msg="no"
 737 AC_MSG_CHECKING(for libopus)
 738 AC_ARG_WITH(libopus,
 739     [  --with-libopus=PREFIX (base of libopus installation)],
 740     [AC_MSG_RESULT([$with_libopus])
 741      AS_CASE([$with_libopus],
 742         [no],[],
 743         [yes],[
 744             CHECK_LIBHEADER(LIBOPUS,
 745                             opus,
 746                             opus_decode_float,
 747                             opus/opus.h,
 748                             AC_CHECK_DECL([OPUS_SET_GAIN],
 749                                           [opus=1],
 750                                           [],
 751                                           [[
 752                                           #include <opus/opus.h>
 753                                           ]]))
 754     ],[
 755         LDFLAGS="-L$with_libopus/lib $LDFLAGS"
 756         CPPFLAGS="-I$with_libopus/include $CPPFLAGS"
 757         AC_CHECK_HEADERS(opus/opus.h,
 758                          AC_CHECK_LIB([opus],
 759                                       [OPUS_SET_GAIN],
 760                                       EXT_LIB_PATH="-L$with_libopus/lib $EXT_LIB_PATH"
 761                                       opus=1))
 762       ])
 763     ],
 764     [AC_MSG_RESULT([--with-libopus not specified])
 765      CHECK_LIBHEADER(LIBOPUS,
 766                             opus,
 767                             opus_decode_float,
 768                             opus/opus.h,
 769                             AC_CHECK_DECL([OPUS_SET_GAIN],
 770                                           [opus=1],
 771                                           [],
 772                                           [[
 773                                           #include <opus/opus.h>
 774                                           ]]))])
 775 AM_CONDITIONAL(HAVE_OPUS, [test "$opus" = 1])
 776 AS_IF([test "x$opus" = x1],
 777       [AC_DEFINE([HAVE_OPUS],[1],[Have libopus library])
 778        libopus_msg="yes"],
 779       [AC_DEFINE([HAVE_OPUS],[0],[Lacking libopus library])
 780        libopus_msg="no"])
 781
 782 # libogg
 783 AC_CHECK_LIB(ogg, ogg_stream_flush_fill,
 784         [AC_CHECK_HEADERS([ogg/ogg.h],
 785           AM_CONDITIONAL(HAVE_OGG, true)
 786           ogg=1
 787           AC_DEFINE(HAVE_OGG,1,[Have ogg]),
 788           AM_CONDITIONAL(HAVE_OGG, false)
 789           ogg=0
 790           AC_DEFINE(HAVE_OGG,0,[lacking ogg]))],
 791         AM_CONDITIONAL(HAVE_OGG, false)
 792         ogg=0)
 793
 794
 795 PKG_CHECK_MODULES([GLIB],
 796                   [glib-2.0],
 797   [# check for pbc library
 798   pbc=0
 799    AC_CHECK_HEADER([pbc/pbc.h],pbc=1)
 800    AC_CHECK_HEADER([gabe.h],abe=1)
 801    AM_CONDITIONAL(HAVE_PBC, [test "x$pbc" = x1])
 802    AM_CONDITIONAL(HAVE_ABE, [test "x$abe" = x1])
 803    AS_IF([test "x$pbc" = x1],
 804      [AC_DEFINE([HAVE_PBC],[1],[Have pbc library])],
 805      [AC_DEFINE([HAVE_PBC],[0],[Lacking pbc library])])
 806    AS_IF([test "x$abe" = x1],
 807     [AC_DEFINE([HAVE_ABE],[1],[Have ABE library])],
 808     [AC_DEFINE([HAVE_ABE],[0],[Lacking ABE library])])],
 809   [# glib-2 not found
 810    AM_CONDITIONAL(HAVE_PBC, [false])
 811    AM_CONDITIONAL(HAVE_ABE, [false])
 812    AC_DEFINE([HAVE_PBC],[0],[Lacking glib library])])
 813
 814 gst=0
 815 gstreamer_msg="no"
 816 PKG_CHECK_MODULES(
 817   [GST],
 818   [glib-2.0 gobject-2.0 gstreamer-1.0 gstreamer-app-1.0 gstreamer-audio-1.0],
 819   [gst=1
 820    gstreamer_msg="yes"],
 821   [gst=0])
 822
 823 # Pulse Audio
 824 AS_IF([test "x$pulse" != "x1" -o "x$opus" != "x1" -o "x$ogg" != "x1"],[
 825  AS_IF([test "x$gst" != "x1"],[
 826   conversation_backend=none
 827   AM_CONDITIONAL(BUILD_PULSE_HELPERS, false)
 828   AM_CONDITIONAL(BUILD_GST_HELPERS, false)
 829   AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
 830  ],[
 831    conversation_backend=gst
 832    AM_CONDITIONAL(BUILD_PULSE_HELPERS, false)
 833    AM_CONDITIONAL(BUILD_GST_HELPERS, true)
 834    AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
 835  ])
 836 ],[
 837  conversation_backend=pulse
 838  AM_CONDITIONAL(BUILD_PULSE_HELPERS, true)
 839  AM_CONDITIONAL(BUILD_GST_HELPERS, false)
 840  AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
 841 ])
 842
 843 AS_IF([test "x$conversation_backend" = "xnone"],
 844       AM_CONDITIONAL(BUILD_CONVERSATION, false),
 845       AM_CONDITIONAL(BUILD_CONVERSATION, true))
 846
 847 # libgnurl
 848 LIBGNURL_CHECK_CONFIG(,7.34.0,gnurl=1,gnurl=0)
 849
 850 SAVE_CPPFLAGS=$CPPFLAGS
 851 CPPFLAGS="$LIBGNURL_CPPFLAGS $LIBCURL_CPPFLAGS $CPPFLAGS"
 852 LIBS="$LIBGNURL $LIBCURL $LIBS"
 853
 854 # libcurl-gnutls
 855 LIBCURL_CHECK_CONFIG(,7.34.0,[curl=true],[curl=false])
 856 AS_IF([test "x$curl" = xtrue],[
 857  AC_CHECK_HEADER([curl/curl.h],
 858   AC_CHECK_DECLS(CURLINFO_TLS_SESSION,[curl=true],[curl=false],[[#include <curl/curl.h>]]),
 859   [curl=false])
 860  # need libcurl-gnutls.so, everything else is not acceptable
 861  AC_CHECK_LIB([curl-gnutls],[curl_easy_getinfo],,[curl=false])
 862  # cURL must support CURLINFO_TLS_SESSION, version >= 7.34
 863 ])
 864
 865 # libcurl and libgnurl should be mutually exclusive
 866 AS_IF([test "$gnurl" = 1],
 867       [AM_CONDITIONAL(HAVE_LIBGNURL, true)
 868        AC_DEFINE([HAVE_LIBGNURL],[1],[Have libgnurl])
 869        AM_CONDITIONAL(HAVE_LIBCURL, false)
 870        AC_DEFINE([HAVE_LIBCURL],[0],[Lacking libcurl])],
 871       [AS_IF([test "$curl" = true],
 872              [AM_CONDITIONAL(HAVE_LIBGNURL, false)
 873               AC_DEFINE([HAVE_LIBGNURL],[0],[Lacking libgnurl])
 874               AM_CONDITIONAL(HAVE_LIBCURL, true)
 875               AC_DEFINE([HAVE_LIBCURL],[1],[Have libcurl])],
 876              [AC_MSG_WARN([ERROR: GNUnet requires libcurl-gnutls or gnurl >= 7.34])
 877               AM_CONDITIONAL(HAVE_LIBGNURL, false)
 878               AC_DEFINE([HAVE_LIBGNURL],[0],[Lacking libgnurl])
 879               AM_CONDITIONAL(HAVE_LIBCURL, false)
 880               AC_DEFINE([HAVE_LIBCURL],[0],[Lacking libcurl])])])
 881
 882 AC_SEARCH_LIBS(__atomic_load_8, atomic, [have_libatomic=1 AC_DEFINE(HAVE_LIBATOMIC,1,[external libatomic])])
 883 AM_CONDITIONAL(HAVE_LIBATOMIC, [test "$have_libatomic" = 1])
 884
 885 # restore LIBS & CPPFLAGS
 886 LIBS=$SAVE_LIBS
 887 CPPFLAGS=$SAVE_CPPFLAGS
 888
 889
 890 AC_CHECK_HEADERS([nss.h],[nss=true],[nss=false])
 891 AS_IF([test x$nss = xfalse],
 892   [
 893         AM_CONDITIONAL(HAVE_GLIBCNSS, false)
 894         AC_MSG_WARN([No GNU libc nss header, will not build NSS plugin])
 895   ],[
 896         NSS_INCLUDES="
 897         #include <nss.h>
 898         "
 899         AC_CHECK_DECL([NSS_STATUS_UNAVAIL],
 900                 [AM_CONDITIONAL(HAVE_GLIBCNSS, true)],
 901                 [AM_CONDITIONAL(HAVE_GLIBCNSS, false)
 902                  AC_MSG_WARN([No nss header fails to define NSS_STATUS_UNAVAIl, will not build NSS plugin])],
 903                 [$NSS_INCLUDES])
 904 ])
 905
 906
 907
 908 # test for kvm and kstat (for CPU stats under BSD/Solaris)
 909 AC_CHECK_LIB([kvm],[kvm_open])
 910 AC_CHECK_LIB([kstat],[kstat_open])
 911
 912
 913 # should the build process be restricted to the code required
 914 # for GNU Taler wallets?
 915 AC_MSG_CHECKING(whether to compile GNU Taler Wallet library ONLY)
 916 AC_ARG_ENABLE([taler-wallet],
 917    [AS_HELP_STRING([--enable-taler-wallet], [only compile for Taler wallet])],
 918    [taler_only=${enableval}],
 919    [taler_only=no])
 920 AC_MSG_RESULT($taler_only)
 921 AS_IF([test "x$taler_only" = "xyes"],
 922 [
 923   AM_CONDITIONAL([TALER_ONLY],true)
 924   AC_DEFINE([TALER_WALLET_ONLY],[1],[Compiling for Taler wallet])
 925 ],[
 926   AM_CONDITIONAL([TALER_ONLY],false)
 927   AC_DEFINE([TALER_WALLET_ONLY],[0],[Canonical compilation])
 928 ])
 929
 930 # test for libextractor
 931 extractor=0
 932 AC_MSG_CHECKING(for libextractor)
 933 AC_ARG_WITH(extractor,
 934    [  --with-extractor=PREFIX (base of libextractor installation)],
 935    [AC_MSG_RESULT([$with_extractor])
 936     AS_CASE([$with_extractor],
 937       [no],[],
 938       [yes],[
 939         AC_CHECK_HEADERS([extractor.h],
 940           AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
 941             extractor=1))
 942       ],[
 943         LDFLAGS="-L$with_extractor/lib $LDFLAGS"
 944         CPPFLAGS="-I$with_extractor/include $CPPFLAGS"
 945         AC_CHECK_HEADERS([extractor.h],
 946           AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
 947             EXT_LIB_PATH="-L$with_extractor/lib $EXT_LIB_PATH"
 948             extractor=1))
 949       ])
 950    ],
 951    [AC_MSG_RESULT([--with-extractor not specified])
 952     AC_CHECK_HEADERS([extractor.h],
 953      AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
 954       extractor=1))])
 955 # restore LIBS
 956 LIBS=$SAVE_LIBS
 957
 958 AS_IF([test "$extractor" != 1],
 959  [
 960  AM_CONDITIONAL(HAVE_LIBEXTRACTOR, false)
 961  AC_DEFINE([HAVE_LIBEXTRACTOR],[0],[Lacking libextractor])
 962  ],[
 963  AM_CONDITIONAL(HAVE_LIBEXTRACTOR, true)
 964  AC_DEFINE([HAVE_LIBEXTRACTOR],[1],[Have libextractor])
 965  ])
 966
 967
 968 AS_IF([test "$taler_only" != yes],[
 969
 970
 971 # Check for libltdl header (#2999)
 972 ltdl=0
 973 AC_MSG_CHECKING(for libltdl)
 974 AC_ARG_WITH(ltdl,
 975    [AS_HELP_STRING([--with-ltdl=PREFIX],[base of libltdl installation])],
 976    [AC_MSG_RESULT([$with_ltdl])
 977     AS_CASE([$with_ltdl],
 978       [no],[],
 979       [yes],[
 980         AC_CHECK_HEADERS(ltdl.h,
 981           AC_CHECK_LIB([ltdl], [lt_dlopenext],
 982             ltdl=1))
 983       ],[
 984         LDFLAGS="-L$with_ltdl/lib $LDFLAGS"
 985         CPPFLAGS="-I$with_ltdl/include $CPPFLAGS"
 986         AC_CHECK_HEADERS(ltdl.h,
 987           AC_CHECK_LIB([ltdl], [lt_dlopenext],
 988             EXT_LIB_PATH="-L$with_ltdl/lib $EXT_LIB_PATH"
 989             ltdl=1))
 990       ])
 991    ],
 992    [AC_MSG_RESULT([--with-ltdl not specified])
 993     AC_CHECK_HEADERS(ltdl.h,
 994      AC_CHECK_LIB([ltdl], [lt_dlopenext],
 995       ltdl=1))])
 996 AS_IF([test x$ltdl = x1],
 997 [
 998  AC_MSG_RESULT([libltdl found])
 999 ],[
1000  AC_MSG_ERROR([GNUnet requires libltdl (from GNU libtool), try installing libltdl-dev])
1001 ])
1002 # restore LIBS
1003 LIBS=$SAVE_LIBS
1004
1005 # libidn and libidn2. The ideal goal is this:
1006 # check for libidn2, if it doesn't exist check for libidn
1007 # if both exist, prefer libidn2
1008 # if none exist, fail and message that libidn or libidn2
1009 # is required with a preference for libidn2.
1010 # TODO: What we have right here can probably be improved.
1011 my_with_libidn=1
1012 AC_ARG_WITH(libidn,
1013             AS_HELP_STRING([--with-libidn=pathname],
1014                            [Support IDN (needs libidn)]),
1015             [],
1016             [withval="yes"])
1017 AS_IF([test x_$withval = x_yes],
1018       [AC_CHECK_HEADERS([idna.h],
1019           AC_MSG_NOTICE([Found idna.h]),
1020           AC_CHECK_HEADERS([idn/idna.h],
1021                AC_MSG_NOTICE([Found idn/idna.h]),
1022                my_with_libidn=0))],
1023       [AS_IF([test x_$withval != x_no],
1024              [CFLAGS="$CFLAGS -I$withval/include"
1025               LDFLAGS="$LDFLAGS -L$withval/lib"
1026               AC_CHECK_HEADERS([idna.h],
1027                 AC_MSG_NOTICE([Found idna.h]),
1028                 [AC_MSG_NOTICE([Failed to find idna.h])
1029                  my_with_libidn=0])],
1030              [my_with_libidn=0])])
1031
1032 my_with_libidn2=1
1033 AC_ARG_WITH(libidn2,
1034             AS_HELP_STRING([--with-libidn2=pathname],
1035                            [Support IDN (needs libidn2)]),
1036             [],
1037             [withval="yes"])
1038 AS_IF([test x_$withval = x_yes],
1039       [AC_CHECK_HEADERS([idn2.h],
1040        AC_MSG_NOTICE([Found idn2.h]),
1041        AC_CHECK_HEADERS([idn2/idn2.h],
1042           AC_MSG_NOTICE([Found idn2/idn2.h]),
1043           [AC_MSG_NOTICE([Failed to find idn2.h])
1044            my_with_libidn2=0]))],
1045       [AS_IF([test x_$withval != x_no],
1046              [CFLAGS="$CFLAGS -I$withval/include"
1047               LDFLAGS="$LDFLAGS -L$withval/lib"],
1048              [my_with_libidn2=0])])
1049
1050 AC_MSG_CHECKING([if libidn can be used])
1051 # Check for LIBIDNs
1052 there_can_only_be_one=1
1053
1054 working_libidn1=0
1055 working_libidn2=0
1056 AS_IF([test x$my_with_libidn2 = x1],
1057       [AC_MSG_NOTICE([Checking for libidn2])
1058        AC_CHECK_LIB([idn2],
1059                     [idn2_to_unicode_8z8z],
1060                     [working_libidn2=1
1061                     LIBS="-lidn2 $LIBS"
1062                     AC_DEFINE_UNQUOTED([HAVE_LIBIDN2],
1063                                        [1],
1064                                        [Define to 1 if you have 'libidn2' (-lidn2).])],
1065                     [MISSING_DEPS="${MISSING_DEPS}${MISSING_SEP}libidn2"
1066                      MISSING_SEP=", "])])
1067 AM_CONDITIONAL(HAVE_LIBIDN2,
1068                test x$working_libidn2 = x1)
1069 AS_IF([test x$working_libidn2 = x0],
1070       [AS_IF([test x$my_with_libidn = x1],
1071              [AC_MSG_NOTICE([Checking for libidn])
1072               AC_CHECK_LIB([idn],
1073                            [idna_to_ascii_8z],
1074                            [working_libidn1=1
1075                            LIBS="-lidn $LIBS"
1076                            AC_DEFINE_UNQUOTED([HAVE_LIBIDN],
1077                                               [1],
1078                                               [Define to 1 if you have 'libidn' (-lidn).])],
1079                            [there_can_only_be_one=0])],
1080              [AS_IF([test x$my_with_libidn2 = x1],
1081                     [there_can_only_be_one=0
1082                      AC_MSG_FAILURE([* There can only be one libidn.
1083                                      * Provide either libidn >= 1.13
1084                                      * or
1085                                      * libidn2 to the configure
1086                                      * script via
1087                                      * --with-libidn2
1088                                      * --with-libidn])])])])
1089 AM_CONDITIONAL(HAVE_LIBIDN, test x$working_libidn1 = x1)
1090
1091 AS_IF([test "$working_libidn1" = 0 -a "$working_libidn2" = 0],
1092       [AC_MSG_ERROR([GNUnet requires libidn (or libidn2)])])
1093
1094 AS_IF([test x$there_can_only_be_one = x0],
1095       [AC_MSG_FAILURE([Missing dependencies: $MISSING_DEPS])])
1096
1097 # test for zlib
1098 SAVE_LDFLAGS=$LDFLAGS
1099 SAVE_CPPFLAGS=$CPPFLAGS
1100 AC_ARG_WITH(zlib,
1101             [  --with-zlib[[=DIR]]       use libz in DIR],
1102             [AS_IF([test "$withval" = "no"],
1103                    [AC_MSG_ERROR([GNUnet requires zlib])],
1104                    [test "$withval" != "yes"],
1105                    [Z_DIR=$withval
1106                     CPPFLAGS="${CPPFLAGS} -I$withval/include"
1107                     LDFLAGS="${LDFLAGS} -L$withval/lib"])])
1108 AC_CHECK_HEADER(zlib.h,
1109                 [],
1110                 [AC_MSG_ERROR([GNUnet requires zlib])])
1111 AC_CHECK_LIB(z,
1112              compress2,
1113              [AC_DEFINE([HAVE_ZLIB],
1114                         [],
1115                         [Have compression library])
1116               if test "x${Z_DIR}" != "x"; then
1117                       Z_CFLAGS="-I${Z_DIR}/include"
1118                       Z_LIBS="-L${Z_DIR}/lib -lz"
1119               else
1120                       Z_LIBS="-lz"
1121               fi],
1122               [AC_MSG_ERROR([GNUnet requires zlib])])
1123 AC_SUBST(Z_CFLAGS)
1124 AC_SUBST(Z_LIBS)
1125
1126 AS_IF([test "$enable_shared" = "no"],
1127       [AC_MSG_ERROR([GNUnet only works with shared libraries. Sorry.])])
1128
1129
1130 # restore LIBS
1131 LIBS=$SAVE_LIBS
1132
1133
1134 # end of taler-only being false
1135 ])
1136
1137
1138 # check for iconv
1139 AM_ICONV
1140
1141 # test for libunistring
1142 gl_LIBUNISTRING
1143 AS_IF([test $HAVE_LIBUNISTRING != yes],
1144       [AC_MSG_ERROR([GNUnet requires libunistring])])
1145
1146 # under emscripten, $gl_libunistring_hexversion is undefined
1147 if test "$taler_only" != yes; then
1148
1149 AS_IF([test "x$gl_libunistring_hexversion" = "x" || test "$gl_libunistring_hexversion" -le 2305],
1150       [AC_MSG_ERROR([GNUnet requires libunistring >= 0.9.1.1])])
1151 fi
1152 AC_CHECK_HEADERS([unistr.h],
1153                  ,
1154                  AC_MSG_ERROR([Compiling GNUnet requires unistr.h (from libunistring) to be installed]))
1155
1156 # restore LIBS
1157 LIBS=$SAVE_LIBS
1158
1159
1160
1161 # Checks for standard header files.
1162 AC_HEADER_DIRENT
1163 AC_HEADER_STDC
1164
1165 # Check for headers that are ALWAYS required
1166 AC_CHECK_HEADERS([fcntl.h math.h errno.h ctype.h limits.h stdio.h stdlib.h string.h unistd.h stdarg.h signal.h locale.h sys/stat.h sys/types.h],,AC_MSG_ERROR([Compiling GNUnet requires standard UNIX headers files: fcntl.h math.h errno.h ctype.h limits.h stdio.h stdlib.h string.h unistd.h stdarg.h signal.h locale.h sys/stat.h sys/types.h]))
1167
1168
1169
1170 # Checks for headers that are only required on some systems or
1171 # opional (and where we do NOT abort if they are not there)
1172 AC_CHECK_HEADERS([stdatomic.h malloc.h malloc/malloc.h malloc/malloc_np.h langinfo.h sys/param.h sys/mount.h sys/statvfs.h sys/select.h sockLib.h sys/mman.h sys/msg.h sys/vfs.h arpa/inet.h fcntl.h libintl.h netdb.h netinet/in.h sys/ioctl.h sys/socket.h sys/time.h unistd.h kstat.h sys/sysinfo.h kvm.h sys/file.h sys/resource.h ifaddrs.h mach/mach.h stddef.h sys/timeb.h argz.h ucred.h sys/ucred.h endian.h sys/endian.h execinfo.h byteswap.h])
1173
1174 # FreeBSD requires this for netinet/in_systm.h and netinet/ip.h
1175 AC_CHECK_HEADERS([sys/types.h netinet/in_systm.h netinet/in.h netinet/ip.h],,,
1176 [#ifdef HAVE_SYS_TYPES_H
1177 #include <sys/types.h>
1178 #endif
1179 #ifdef HAVE_NETINET_IN_SYSTM_H
1180 #include <netinet/in_systm.h>
1181 #endif
1182 #ifdef HAVE_NETINET_IN_H
1183 #include <netinet/in.h>
1184 #endif
1185 ])
1186
1187 SAVE_LDFLAGS=$LDFLAGS
1188 SAVE_CPPFLAGS=$CPPFLAGS
1189
1190 # test for sqlite
1191 sqlite=false
1192 AC_MSG_CHECKING(for SQLite)
1193 AC_ARG_WITH(sqlite,
1194   [  --with-sqlite=PFX       base of SQLite installation],
1195   [AC_MSG_RESULT("$with_sqlite")
1196    AS_CASE([$with_sqlite],
1197      [no],[],
1198      [yes],[
1199       AC_CHECK_HEADERS(sqlite3.h,
1200       sqlite=true)],
1201      [
1202     LDFLAGS="-L$with_sqlite/lib $LDFLAGS"
1203     CPPFLAGS="-I$with_sqlite/include $CPPFLAGS"
1204     AC_CHECK_HEADERS(sqlite3.h,
1205      EXT_LIB_PATH="-L$with_sqlite/lib $EXT_LIB_PATH"
1206      SQLITE_LDFLAGS="-L$with_sqlite/lib"
1207      SQLITE_CPPFLAGS="-I$with_sqlite/include"
1208      sqlite=true)
1209     LDFLAGS=$SAVE_LDFLAGS
1210     CPPFLAGS=$SAVE_CPPFLAGS
1211     ])
1212   ],
1213   [AC_MSG_RESULT([--with-sqlite not specified])
1214     AC_CHECK_HEADERS(sqlite3.h, sqlite=true)])
1215 AM_CONDITIONAL(HAVE_SQLITE, test x$sqlite = xtrue)
1216 AC_SUBST(SQLITE_CPPFLAGS)
1217 AC_SUBST(SQLITE_LDFLAGS)
1218
1219 LDFLAGS=$SAVE_LDFLAGS
1220 CPPFLAGS=$SAVE_CPPFLAGS
1221
1222 # test for postgres
1223 postgres=false
1224 # even running the check for postgres breaks emscripten ...
1225 AS_IF([test "$taler_only" != yes],
1226       [AX_LIB_POSTGRESQL([9.5],
1227         [CPPFLAGS="$CPPFLAGS $POSTGRESQL_CPPFLAGS"
1228          AC_CHECK_HEADERS([libpq-fe.h],
1229          postgres=true)
1230         ],
1231         [AC_MSG_RESULT([no postgres])])])
1232 AM_CONDITIONAL(HAVE_POSTGRESQL, test x$postgres = xtrue)
1233
1234
1235 LDFLAGS=$SAVE_LDFLAGS
1236 CPPFLAGS=$SAVE_CPPFLAGS
1237
1238 # mysql & windows
1239 AC_CHECK_TYPES([sigset_t, off_t], [], [], [#include <sys/types.h>])
1240 AC_CHECK_TYPES([size_t], [], [], [#include <stdio.h>])
1241
1242 # test for mysql
1243 mysql=false
1244 mysqlfail=false
1245 SAVE_LDFLAGS=$LDFLAGS
1246 SAVE_CPPFLAGS=$CPPFLAGS
1247 AC_MSG_CHECKING(for mysql)
1248 AC_ARG_WITH(mysql,
1249   [  --with-mysql=PFX        base of MySQL installation],
1250   [AC_MSG_RESULT([$with_mysql])
1251    AS_CASE([$with_mysql],
1252      [no],[],
1253      [yes|""],[
1254       AC_CHECK_HEADERS(mysql/mysql.h,
1255        AC_CHECK_LIB(mysqlclient, mysql_init,
1256        mysql=true), [], [])
1257      ],[
1258       LDFLAGS="-L$with_mysql/lib -L$with_mysql/lib/mysql $LDFLAGS $ZLIBS"
1259       CPPFLAGS="-I$with_mysql/include $CPPFLAGS"
1260       AC_CHECK_HEADERS(mysql/mysql.h,
1261        AC_CHECK_LIB(mysqlclient, mysql_init,
1262         MYSQL_LDFLAGS="-L$with_mysql/lib -L$with_mysql/lib/mysql"
1263         MYSQL_CPPFLAGS="-I$with_mysql/include"
1264
1265         mysql=true), [], [])
1266      ])
1267   ],
1268   [AC_MSG_RESULT([--with-mysql not specified])
1269    if test -d "/usr/lib64/mysql"; then
1270     MYSQL_LIBDIR="/usr/lib64/mysql"
1271    elif test -d "/usr/lib/mysql"; then
1272     MYSQL_LIBDIR="/usr/lib/mysql"
1273    else
1274     MYSQL_LIBDIR="/usr/lib"
1275    fi
1276    LDFLAGS="-L$MYSQL_LIBDIR $LDFLAGS $ZLIBS"
1277    AC_CHECK_LIB(mysqlclient, mysql_init,
1278     [AC_CHECK_HEADERS(mysql/mysql.h,
1279       MYSQL_LDFLAGS="-L$MYSQL_LIBDIR"
1280       mysql=true
1281
1282      , [], [])])
1283   ])
1284
1285 AC_SUBST(MYSQL_LDFLAGS)
1286 AC_SUBST(MYSQL_CPPFLAGS)
1287
1288 # additional version check for mysql
1289 AC_ARG_ENABLE(mysql-version-check, [  --disable-mysql-version-check  do not check MySQL version],, enable_mysql_version_check=yes)
1290 AS_IF([test "$mysql" = "true" -a "x$enable_mysql_version_check" = "xyes"],
1291  [
1292   AC_MSG_CHECKING(mysql version)
1293   AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1294     [[
1295       #include <mysql/mysql.h>]],
1296     [[
1297       #if (MYSQL_VERSION_ID < 40100)
1298       #error needs at least version >= 4.1
1299       #endif
1300       int main () { return 0; }
1301     ]])
1302     ],mysql=true,mysql=false)
1303   AS_IF([test "$mysql" = "false"],
1304    [
1305     mysqlfail=true
1306     AC_MSG_RESULT([fail, >= 4.1 required])
1307    ],[
1308     AC_MSG_RESULT(ok)
1309    ])
1310 ])
1311 AM_CONDITIONAL(HAVE_MYSQL, test x$mysql = xtrue)
1312 AM_CONDITIONAL(HAVE_MYSQLE, false)
1313 # restore LIBS
1314 LIBS=$SAVE_LIBS
1315 LDFLAGS=$SAVE_LDFLAGS
1316 CPPFLAGS=$SAVE_CPPFLAGS
1317
1318 AS_IF([test "$sqlite" = 0 -a "$mysql" = 0],
1319 [
1320  AC_MSG_ERROR([GNUnet requires SQLite or MySQL])
1321 ])
1322
1323 # libmicrohttpd
1324 lmhd=0
1325 m4_define([MHD_MODULE], [libmicrohttpd >= 0.9.63])
1326 AC_ARG_WITH(microhttpd,
1327    [AS_HELP_STRING([--with-microhttpd[[=PFX]]],
1328        [base of libmicrohttpd installation])],
1329    [],
1330    [with_microhttpd=check])
1331 AS_CASE([$with_microhttpd],
1332    [no], [],
1333    [yes], [PKG_CHECK_MODULES([MHD], [MHD_MODULE], [lmhd=1])],
1334    [check], [PKG_CHECK_MODULES([MHD], [MHD_MODULE],
1335        [lmhd=1],
1336        [AC_MSG_WARN([Building without libmicrohttpd])])],
1337    [SAVE_PKG_CONFIG_PATH=$PKG_CONFIG_PATH
1338     PKG_CONFIG_PATH=$with_microhttpd/lib/pkgconfig
1339     export PKG_CONFIG_PATH
1340     PKG_CHECK_MODULES([MHD], [MHD_MODULE], [lmhd=1])
1341     PKG_CONFIG_PATH=$SAVE_PKG_CONFIG_PATH])
1342 AM_CONDITIONAL(HAVE_MHD, test x$lmhd = x1)
1343 AC_DEFINE_UNQUOTED([HAVE_MHD], $lmhd, [We have libmicrohttpd])
1344
1345 AM_CONDITIONAL(HAVE_JSON, [test x$jansson = x1])
1346
1347 # restore LIBS
1348 LIBS=$SAVE_LIBS
1349
1350 # check for gettext
1351 AM_GNU_GETTEXT([external])
1352 AM_GNU_GETTEXT_VERSION([0.18.1])
1353
1354 # Checks for standard typedefs, structures, and compiler characteristics.
1355 AC_TYPE_PID_T
1356 AC_TYPE_SIZE_T
1357 AC_TYPE_MODE_T
1358 AC_HEADER_TIME
1359 AC_HEADER_STAT
1360 AC_HEADER_STDBOOL
1361 AC_STRUCT_TM
1362
1363 AC_CHECK_MEMBER([struct sockaddr_in.sin_len],
1364    [ AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [Do we have sockaddr_in.sin_len?])
1365    ],
1366    [],
1367    [
1368       #include <sys/types.h>
1369       #include <sys/socket.h>
1370       #include <netinet/in.h>
1371    ])
1372
1373 AC_CHECK_MEMBER([struct sockaddr_un.sun_len],
1374                 [ AC_DEFINE(HAVE_SOCKADDR_UN_SUN_LEN,
1375                             1,
1376                             [Do we have sockaddr_un.sun_len?])],
1377                 [],
1378                 [
1379                 #include <sys/types.h>
1380                 #include <sys/socket.h>
1381                 #include <sys/un.h>
1382                 ])
1383
1384
1385
1386 # Checks for library functions.
1387 AC_FUNC_CLOSEDIR_VOID
1388 AC_FUNC_FORK
1389 AC_PROG_GCC_TRADITIONAL
1390 AC_FUNC_MEMCMP
1391 AC_FUNC_SELECT_ARGTYPES
1392 AC_FUNC_CHOWN
1393
1394 AC_TYPE_SIGNAL
1395 AC_FUNC_STAT
1396 AC_FUNC_STRFTIME
1397 AC_FUNC_VPRINTF
1398 AC_HEADER_SYS_WAIT
1399 AC_TYPE_OFF_T
1400 AC_TYPE_UID_T
1401 AC_CHECK_FUNCS([atoll stat64 strnlen mremap getrlimit setrlimit sysconf initgroups strndup gethostbyname2 getpeerucred getpeereid setresuid $funcstocheck getifaddrs freeifaddrs getresgid mallinfo malloc_size malloc_usable_size getrusage random srandom stat statfs statvfs wait4])
1402
1403 # restore LIBS
1404 LIBS=$SAVE_LIBS
1405
1406 GN_INTLINCL=""
1407 GN_LIBINTL="$LTLIBINTL"
1408 AC_ARG_ENABLE(framework,
1409               [AS_HELP_STRING([--enable-framework],[enable Mac OS X framework build helpers])],
1410               enable_framework_build=$enableval)
1411 AM_CONDITIONAL(WANT_FRAMEWORK,
1412                test x$enable_framework_build = xyes)
1413 AS_IF([test x$enable_framework_build = xyes],
1414       [AC_DEFINE([FRAMEWORK_BUILD],
1415                  1,
1416                  [Build a Mac OS X Framework])
1417       GN_INTLINCL='-I$(top_srcdir)/src/intlemu'
1418       GN_LIBINTL='$(top_builddir)/src/intlemu/libintlemu.la -framework CoreFoundation'
1419       AC_LIB_APPENDTOVAR([CPPFLAGS],
1420                          [$GN_INTLINCL])])
1421
1422 GN_LIB_LDFLAGS="-export-dynamic -no-undefined"
1423 GN_PLUGIN_LDFLAGS="-export-dynamic -avoid-version -module -no-undefined"
1424
1425 AC_SUBST(GN_LIB_LDFLAGS)
1426 AC_SUBST(GN_PLUGIN_LDFLAGS)
1427 AC_SUBST(GN_INTLINCL)
1428 AC_SUBST(GN_LIBINTL)
1429
1430 AC_SUBST(CPPFLAGS)
1431 AC_SUBST(LIBS)
1432 AC_SUBST(LDFLAGS)
1433 AC_SUBST(EXT_LIB_PATH)
1434 AC_SUBST(EXT_LIBS)
1435
1436 AC_SUBST(LIBPREFIX)
1437 AC_SUBST(DLLDIR)
1438 AC_SUBST(EXT_LIB_PATH)
1439
1440 DATAROOTDIR=$datarootdir
1441 AC_SUBST(DATAROOTDIR)
1442
1443 # test for sudo
1444 AC_MSG_CHECKING(for sudo)
1445 #AC_CHECK_PROGS(SUDO_BINARY, [sudo], false)
1446 #AM_CONDITIONAL(HAVE_SUDO, test x$SUDO_BINARY != xfalse)
1447 AC_ARG_WITH(sudo,
1448            [  --with-sudo=PATH       path to sudo binary (or just yes)],
1449            [AC_MSG_RESULT("$with_sudo")
1450             AS_CASE([$with_sudo],
1451                     [no],[SUDO_BINARY=],
1452                     [yes],[SUDO_BINARY=sudo],
1453                     [SUDO_BINARY=$with_sudo])],
1454            [AC_MSG_RESULT([no])])
1455 AC_SUBST(SUDO_BINARY)
1456 AM_CONDITIONAL([HAVE_SUDO],
1457               [test "x$SUDO_BINARY" != "x" -o -w /])
1458
1459 # test for doas
1460 AC_MSG_CHECKING(for doas)
1461 AC_CHECK_PROGS(DOAS_BINARY, [doas], false)
1462 AM_CONDITIONAL(HAVE_DOAS_BINARY, test x$DOAS_BINARY != xfalse)
1463
1464 # test for gnunetdns group name
1465 GNUNETDNS_GROUP=gnunetdns
1466 AC_MSG_CHECKING(for gnunetdns group name)
1467 AC_ARG_WITH(gnunetdns,
1468             [  --with-gnunetdns=GRPNAME       name for gnunetdns group],
1469             [AC_MSG_RESULT("$with_gnunetdns")
1470              AS_CASE([$with_gnunetdns],
1471                      [no],[GNUNETDNS_GROUP=gnunet],
1472                      [yes],[GNUNETDNS_GROUP=gnunetdns],
1473                      [GNUNETDNS_GROUP=$with_gnunetdns])],
1474             [AC_MSG_RESULT([gnunetdns])])
1475 AC_SUBST(GNUNETDNS_GROUP)
1476
1477
1478
1479 # gnutls
1480 gnutls=0
1481 gnutls_dane=0
1482 AC_MSG_CHECKING(for gnutls)
1483 AC_ARG_WITH(gnutls,
1484             [  --with-gnutls=PFX   base of gnutls installation],
1485             [AC_MSG_RESULT([$with_gnutls])
1486              AS_CASE([$with_gnutls],
1487                      [no],[],
1488                      [yes],
1489                      [AC_CHECK_HEADERS([gnutls/abstract.h],
1490                                        AC_CHECK_LIB([gnutls],
1491                                                     [gnutls_priority_set],
1492                                                     gnutls=true))
1493                       AC_CHECK_HEADERS([gnutls/dane.h],
1494                                        AC_CHECK_LIB([gnutls-dane],
1495                                                     [dane_verify_crt_raw],
1496                                                     gnutls_dane=1))],
1497
1498         [LDFLAGS="-L$with_gnutls/lib $LDFLAGS"
1499         CPPFLAGS="-I$with_gnutls/include $CPPFLAGS"
1500         AC_CHECK_HEADERS([gnutls/abstract.h],
1501             AC_CHECK_LIB([gnutls], [gnutls_priority_set],
1502               EXT_LIB_PATH="-L$with_gnutls/lib $EXT_LIB_PATH"
1503               gnutls=true))
1504         AC_CHECK_HEADERS([gnutls/dane.h],
1505             AC_CHECK_LIB([gnutls-dane], [dane_verify_crt_raw],
1506               gnutls_dane=1))
1507       ])
1508    ],
1509    [AC_MSG_RESULT([--with-gnutls not specified])
1510     AC_CHECK_HEADERS([gnutls/abstract.h],
1511         AC_CHECK_LIB([gnutls], [gnutls_priority_set],
1512           gnutls=true))
1513     AC_CHECK_HEADERS([gnutls/dane.h],
1514         AC_CHECK_LIB([gnutls-dane], [dane_verify_crt_raw],
1515                      gnutls_dane=1))
1516    ])
1517 AM_CONDITIONAL(HAVE_GNUTLS, test x$gnutls = xtrue)
1518 AC_DEFINE_UNQUOTED([HAVE_GNUTLS], $gnutls, [We have GnuTLS])
1519 AM_CONDITIONAL(HAVE_GNUTLS_DANE, test x$gnutls_dane = x1)
1520 AC_DEFINE_UNQUOTED([HAVE_GNUTLS_DANE], $gnutls_dane, [We have GnuTLS with DANE support])
1521
1522
1523
1524 # Test if we are building for superMUC
1525 AC_MSG_CHECKING(if GNUnet is being configured to run on the SuperMUC)
1526 AC_ARG_ENABLE([supermuc],
1527     [AS_HELP_STRING([--enable-supermuc],
1528        [build GNUnet with support to run on the SuperMUC (default is NO)])],
1529     [AS_IF([test "x$enable_supermuc" = "xno"],
1530       [supermuc=0],
1531       [supermuc=1])],
1532     [supermuc=0
1533      enable_supermuc=no])
1534 AC_MSG_RESULT($enable_SUPERMUC)
1535 AM_CONDITIONAL([ENABLE_SUPERMUC], [test "x$supermuc" = "x1"])
1536 AC_DEFINE_UNQUOTED([ENABLE_SUPERMUC], [$supermuc], [Build with support for SuperMUC])
1537
1538 # Check if NSE has to send timestamp information to testbed logger for
1539 # generating histogram of messages received
1540 AC_MSG_CHECKING(if NSE has to send timestamp information to testbed logger)
1541 AC_ARG_ENABLE([nse-histogram],
1542     [AS_HELP_STRING([--enable-nse-histogram],
1543        [have NSE send timestamp information to testbed logger for generating
1544        histogram of received messages.  NOT useful for production (default is
1545        NO)])],
1546     [AS_IF([test "x$enableval" = "xno"],
1547       [nse_histogram=0],
1548       [nse_histogram=1])],
1549     [nse_histogram=0
1550      enable_nse_histogram=no])
1551 AC_MSG_RESULT($enable_nse_histogram)
1552 AM_CONDITIONAL([ENABLE_NSE_HISTOGRAM], [test "x$nse_histogram" = "x1"])
1553 AC_DEFINE_UNQUOTED([ENABLE_NSE_HISTOGRAM], [$nse_histogram],
1554                    [have NSE send timestamp information to testbed logger])
1555
1556 # should 'make check' run tests?
1557 AC_MSG_CHECKING(whether to run tests)
1558 AC_ARG_ENABLE([testruns],
1559    [AS_HELP_STRING([--disable-testruns], [disable running tests on make check (default is YES)])],
1560    [enable_tests_run=${enableval}],
1561    [enable_tests_run=yes])
1562 AC_MSG_RESULT($enable_test_run)
1563 AM_CONDITIONAL([ENABLE_TEST_RUN], [test "x$enable_tests_run" = "xyes"])
1564
1565
1566 AC_MSG_CHECKING([whether to compile in benchmarks (currently for http and crypto)])
1567 AC_ARG_ENABLE([benchmark],
1568    [AS_HELP_STRING([--enable-benchmark], [enable benchmarking])],
1569    [enable_benchmark=${enableval}],
1570    [enable_benchmark=no])
1571 AC_MSG_RESULT($enable_benchmark)
1572 AS_IF([test "x$enable_benchmark" = "xyes"],
1573       [AC_DEFINE_UNQUOTED(ENABLE_BENCHMARK,1,[Benchmarks are enabled])])
1574 AM_CONDITIONAL([ENABLE_BENCHMARK], [test "x$enable_benchmark" = "xyes"])
1575
1576
1577 # should expensive tests be run?
1578 AC_MSG_CHECKING(whether to run expensive tests)
1579 AC_ARG_ENABLE([expensivetests],
1580    [AS_HELP_STRING([--enable-expensivetests], [enable running expensive testcases])],
1581    [enable_expensive=${enableval}],
1582    [enable_expensive=no])
1583 AC_MSG_RESULT($enable_expensive)
1584 AM_CONDITIONAL([HAVE_EXPENSIVE_TESTS], [test "x$enable_expensive" = "xyes"])
1585
1586 # should ports be open for Java services?
1587 AC_MSG_CHECKING(whether to enable ports for gnunet-java)
1588 AC_ARG_ENABLE([javaports],
1589    [AS_HELP_STRING([--enable-javaports], [use non-zero ports for services with Java bindings (default is NO)])],
1590    [enable_java_ports=${enableval}],
1591    [enable_java_ports=no])
1592 AC_MSG_RESULT($enable_java_ports)
1593 AS_IF([test "x$enable_java_ports" = "xyes"],
1594  [JAVAPORT=""],
1595  [JAVAPORT="$UNIXONLY"])
1596 AC_SUBST(JAVAPORT)
1597
1598 # should benchmarks be run?
1599 AC_MSG_CHECKING(whether to run benchmarks during make check)
1600 AC_ARG_ENABLE([benchmarks],
1601    [AS_HELP_STRING([--enable-benchmarks], [enable running benchmarks during make check])],
1602    [enable_benchmarks=${enableval}],
1603    [enable_benchmarks=no])
1604 AC_MSG_RESULT($enable_benchmarks)
1605 AM_CONDITIONAL([HAVE_BENCHMARKS], [test "x$enable_benchmarks" = "xyes"])
1606
1607 # should gnunet-testing be compiled
1608 AC_MSG_CHECKING(wether to compile gnunet-testing)
1609 AC_ARG_ENABLE([testing],
1610    [AS_HELP_STRING([--disable-testing], [do not build gnunet-testing])],
1611    [enable_testing=${enableval}],
1612    [enable_testing=yes])
1613 AC_MSG_RESULT($enable_testing)
1614 AM_CONDITIONAL([HAVE_TESTING], [test "x$enable_testing" = "xyes"])
1615
1616 # should experimental code be compiled (code that may not yet compile)?
1617 AC_MSG_CHECKING(whether to compile experimental code)
1618 AC_ARG_ENABLE([experimental],
1619    [AS_HELP_STRING([--enable-experimental], [enable compiling experimental code])],
1620    [enable_experimental=${enableval}],
1621    [enable_experimental=no])
1622 AC_MSG_RESULT($enable_experimental)
1623 AM_CONDITIONAL([HAVE_EXPERIMENTAL], [test "x$enable_experimental" = "xyes"])
1624
1625 # should malicious code be compiled (should only be used for testing)?
1626 AC_MSG_CHECKING(whether to compile malicious code)
1627 AC_ARG_ENABLE([malicious],
1628    [AS_HELP_STRING([--enable-malicious], [enable compiling malicious code])],
1629    [AS_IF([test "x$enableval" = "xno"],
1630      [malicious=0],
1631      [malicious=1])],
1632    [malicious=0
1633     enable_malicious=no])
1634 AC_MSG_RESULT($enable_malicious)
1635 AM_CONDITIONAL([ENABLE_MALICIOUS], [test 1=$malicious])
1636 AC_DEFINE_UNQUOTED([ENABLE_MALICIOUS], [$malicious],
1637                    [enable compilation of malicious code])
1638
1639 # should services be started on demand when needed?
1640 # Some services may choose to never start by default
1641 # and it is up to the service/module developer to decide
1642 # by having "START_ON_DEMAND = NO" instead of
1643 # "START_ON_DEMAND = @START_ON_DEMAND@"
1644 # in the service/module's conf.in file.
1645 # See also IMMEDIATE_START for an unconditional immediate start.
1646 START_ON_DEMAND="YES"
1647 AC_MSG_CHECKING(whether to start peer's services on demand by default)
1648 AC_ARG_ENABLE([autostart],
1649    [AS_HELP_STRING([--disable-autostart], [do not start peer's services by default])],
1650    [enable_autostart=${enableval}
1651     AS_IF([test "x$enable_autostart" = "xno"],
1652       [START_ON_DEMAND="NO"])
1653    ],
1654    [enable_autostart=yes])
1655 AC_MSG_RESULT($enable_autostart)
1656 #AM_CONDITIONAL([HAVE_START_ON_DEMAND], [test "x$enable_autostart" = "xyes"])
1657 AC_SUBST(START_ON_DEMAND)
1658
1659 # should memory statistics be kept (very expensive CPU-wise!)
1660 AC_MSG_CHECKING(whether to create expensive statistics on memory use)
1661 AC_ARG_ENABLE([heapstats],
1662    [AS_HELP_STRING([--enable-heapstats], [enable expensive heap statistics])],
1663    [enable_heapstats=1],
1664    [enable_heapstats=0])
1665 AC_MSG_RESULT($enable_heapstats)
1666 AC_DEFINE_UNQUOTED([ENABLE_HEAP_STATISTICS],$enable_heapstats,[enable expensive heap statistics])
1667
1668
1669 # Check if the __thread storage class for
1670 # thread-local storage is available.
1671 AC_MSG_CHECKING(whether __thread is supported)
1672 AC_LINK_IFELSE(
1673 [AC_LANG_PROGRAM([#include <stdlib.h>
1674                    #undef __thread
1675                    static __thread int a = 1;],
1676                   [exit(a-1);])],
1677  [have_thread_local_gcc=1],[have_thread_local_gcc=0])
1678 AC_DEFINE_UNQUOTED([HAVE_THREAD_LOCAL_GCC],$have_thread_local_gcc,[Define this if __thread is supported])
1679 AS_IF([test "x$have_thread_local_gcc" = "x1"],
1680       [AC_MSG_RESULT(yes)],
1681       [AC_MSG_RESULT(no)])
1682
1683 # gcov compilation
1684 AC_MSG_CHECKING(whether to compile with support for code coverage analysis)
1685 AC_ARG_ENABLE([coverage],
1686               AS_HELP_STRING([--enable-coverage],
1687                              [compile the library with code coverage support]),
1688               [use_gcov=${enableval}],
1689               [use_gcov=no])
1690 AC_MSG_RESULT($use_gcov)
1691 AM_CONDITIONAL([USE_COVERAGE], [test "x$use_gcov" = "xyes"])
1692
1693
1694 # version info
1695 # TODO: git blame says this predates our switch to git.
1696 # git-svn should be adjusted to simply git, or
1697 # an external script that does the job.
1698 AC_PATH_PROG(svnversioncommand, svnversion)
1699 AC_PATH_PROG(gitcommand, git)
1700 AC_MSG_CHECKING(for source being under a VCS)
1701
1702
1703 # version info
1704 AC_PATH_PROG(gitcommand, git)
1705 AC_MSG_CHECKING(for source being under a VCS)
1706 git_version=
1707 AS_IF([test ! "X$gitcommand" = "X"],
1708 [
1709   git_version=$(cd $srcdir ; git rev-list --full-history --all --abbrev-commit | head -n 1 2>/dev/null)
1710 ])
1711 AS_IF([test "X$git_version" = "X"],
1712   [
1713     vcs_name="no"
1714     vcs_version="\"release\""
1715   ],
1716   [
1717     vcs_name="yes, git-svn"
1718     vcs_version="\"git-$git_version\""
1719   ])
1720 AC_MSG_RESULT($vcs_name)
1721
1722 AC_MSG_CHECKING(VCS version)
1723 AC_MSG_RESULT($vcs_version)
1724 AC_DEFINE_UNQUOTED(VCS_VERSION, [$vcs_version], [VCS revision/hash or tarball version])
1725
1726 AC_CONFIG_FILES([
1727 Makefile
1728 contrib/Makefile
1729 contrib/hellos/Makefile
1730 contrib/services/Makefile
1731 contrib/services/openrc/Makefile
1732 contrib/services/systemd/Makefile
1733 contrib/scripts/Makefile
1734 contrib/scripts/gnunet-logread/Makefile
1735 doc/Makefile
1736 doc/man/Makefile
1737 doc/doxygen/Makefile
1738 doc/handbook/Makefile
1739 doc/tutorial/Makefile
1740 lint/Makefile
1741 m4/Makefile
1742 po/Makefile.in
1743 src/Makefile
1744 src/arm/Makefile
1745 src/arm/arm.conf
1746 src/ats/Makefile
1747 src/ats/ats.conf
1748 src/ats-tool/Makefile
1749 src/ats-tests/Makefile
1750 src/auction/Makefile
1751 src/block/Makefile
1752 src/cadet/Makefile
1753 src/cadet/cadet.conf
1754 src/core/Makefile
1755 src/core/core.conf
1756 src/consensus/Makefile
1757 src/consensus/consensus.conf
1758 src/conversation/Makefile
1759 src/conversation/conversation.conf
1760 src/curl/Makefile
1761 src/datacache/Makefile
1762 src/datastore/Makefile
1763 src/datastore/datastore.conf
1764 src/dht/Makefile
1765 src/dht/dht.conf
1766 src/dns/Makefile
1767 src/dns/dns.conf
1768 src/exit/Makefile
1769 src/fragmentation/Makefile
1770 src/fs/Makefile
1771 src/fs/fs.conf
1772 src/gns/Makefile
1773 src/gns/gns.conf
1774 src/gns/nss/Makefile
1775 src/gnsrecord/Makefile
1776 src/hello/Makefile
1777 src/identity/Makefile
1778 src/identity/identity.conf
1779 src/abd/Makefile
1780 src/abd/abd.conf
1781 src/include/Makefile
1782 src/integration-tests/Makefile
1783 src/json/Makefile
1784 src/hostlist/Makefile
1785 src/my/Makefile
1786 src/mysql/Makefile
1787 src/namecache/Makefile
1788 src/namecache/namecache.conf
1789 src/namestore/Makefile
1790 src/namestore/namestore.conf
1791 src/nat/Makefile
1792 src/nat/nat.conf
1793 src/nat-auto/Makefile
1794 src/nat-auto/nat-auto.conf
1795 src/nse/Makefile
1796 src/nse/nse.conf
1797 src/nt/Makefile
1798 src/peerinfo/Makefile
1799 src/peerinfo/peerinfo.conf
1800 src/peerinfo-tool/Makefile
1801 src/peerstore/Makefile
1802 src/peerstore/peerstore.conf
1803 src/pq/Makefile
1804 src/pt/Makefile
1805 src/regex/Makefile
1806 src/regex/regex.conf
1807 src/revocation/Makefile
1808 src/revocation/revocation.conf
1809 src/rps/Makefile
1810 src/rps/rps.conf
1811 src/secretsharing/Makefile
1812 src/secretsharing/secretsharing.conf
1813 src/scalarproduct/Makefile
1814 src/scalarproduct/scalarproduct.conf
1815 src/set/Makefile
1816 src/set/set.conf
1817 src/sq/Makefile
1818 src/statistics/Makefile
1819 src/statistics/statistics.conf
1820 src/template/Makefile
1821 src/testbed/Makefile
1822 src/testbed/testbed.conf
1823 src/testbed-logger/Makefile
1824 src/testbed-logger/testbed-logger.conf
1825 src/testing/Makefile
1826 src/topology/Makefile
1827 src/transport/Makefile
1828 src/transport/transport.conf
1829 src/util/Makefile
1830 src/util/resolver.conf
1831 src/vpn/Makefile
1832 src/vpn/vpn.conf
1833 src/zonemaster/Makefile
1834 src/zonemaster/zonemaster.conf
1835 src/rest/Makefile
1836 src/abe/Makefile
1837 src/reclaim-attribute/Makefile
1838 src/reclaim/Makefile
1839 pkgconfig/Makefile
1840 pkgconfig/gnunetarm.pc
1841 pkgconfig/gnunetats.pc
1842 pkgconfig/gnunetblock.pc
1843 pkgconfig/gnunetcadet.pc
1844 pkgconfig/gnunetconsensus.pc
1845 pkgconfig/gnunetconversation.pc
1846 pkgconfig/gnunetcore.pc
1847 pkgconfig/gnunetdatacache.pc
1848 pkgconfig/gnunetdatastore.pc
1849 pkgconfig/gnunetdht.pc
1850 pkgconfig/gnunetdns.pc
1851 pkgconfig/gnunetenv.pc
1852 pkgconfig/gnunetfragmentation.pc
1853 pkgconfig/gnunetfs.pc
1854 pkgconfig/gnunetgns.pc
1855 pkgconfig/gnunethello.pc
1856 pkgconfig/gnunetidentity.pc
1857 pkgconfig/gnunetmicrophone.pc
1858 pkgconfig/gnunetmysql.pc
1859 pkgconfig/gnunetnamestore.pc
1860 pkgconfig/gnunetnat.pc
1861 pkgconfig/gnunetnse.pc
1862 pkgconfig/gnunetpeerinfo.pc
1863 pkgconfig/gnunetpq.pc
1864 pkgconfig/gnunetregex.pc
1865 pkgconfig/gnunetrevocation.pc
1866 pkgconfig/gnunetrps.pc
1867 pkgconfig/gnunetscalarproduct.pc
1868 pkgconfig/gnunetset.pc
1869 pkgconfig/gnunetspeaker.pc
1870 pkgconfig/gnunetstatistics.pc
1871 pkgconfig/gnunettestbed.pc
1872 pkgconfig/gnunettesting.pc
1873 pkgconfig/gnunettransport.pc
1874 pkgconfig/gnunetutil.pc
1875 pkgconfig/gnunetvpn.pc
1876 ])
1877 AC_OUTPUT
1878
1879
1880 # FIXME: `some modules' -> be more specific which exact modules.
1881
1882 # java ports
1883 AS_IF([test "x$enable_java_ports" = "xyes"],
1884       [AC_MSG_NOTICE([NOTICE: Opening ports for gnunet-java bindings by default.])])
1885
1886 ####
1887 #### Lasciate ogne speranza, voi ch'intrate
1888 ####
1889 #### This could be moved to the checks above,
1890 #### but for now let's keep it here.
1891 ####
1892
1893 # -- print message regarding enabled experimental features
1894 AS_IF([test "x$enable_experimental" = "xyes"],
1895       [experimental_msg="experimental features enabled"])
1896 # -- OSX Framework
1897 AS_IF([test "$enable_framework_build" = "yes"],
1898       [macosx_framework_msg="yes"],
1899       [macosx_framework_msg="no"])
1900 # -- libidn 2
1901 AS_IF([test "x$working_libidn2" = x1],
1902       [libidn2_msg="libidn2"])
1903 # -- libidn 1
1904 AS_IF([test "x$working_libidn1" = x1],
1905       [libidn1_msg="libidn1"])
1906 # -- texi2mdoc
1907 AS_IF([test "x$texi2mdoc_generation" = x1],
1908       [mdoc_msg="yes"],
1909       [mdoc_msg="no"])
1910 # -- texinfo
1911 AS_IF([test "x$makeinfo" != "x1"],
1912       [texinfo_msg="no"],
1913       [texinfo_msg="yes"])
1914 # -- conversation
1915 AS_IF([test "x$conversation_backend" = "xnone"],
1916       [AS_IF([test "x$pulse" != "x1"],
1917              [AC_MSG_NOTICE([WARNING: libpulse(audio) not found, conversation will not be built.])
1918               libpulse_msg="no"],
1919              [libpulse_msg="yes"])
1920        AS_IF([test "x$opus" != "x1"],
1921              [AC_MSG_NOTICE([WARNING: libopus not found, conversation will not be built.])
1922               libopus_msg="no"],
1923              [libopus_msg="yes"])
1924        AS_IF([test "x$gst" != "x1"],
1925              [AC_MSG_NOTICE([WARNING: GStreamer not found, conversation will not be built.])
1926               gstreamer_msg="no"],
1927              [gstreamer_msg="yes"])],
1928       [features_msg="$features_msg conversation"])
1929 # -- interface
1930 interface_msg=`echo $DEFAULT_INTERFACE | tr -d \"`
1931 # -- libmicrohttpd
1932 AS_IF([test "x$lmhd" != "x1"],
1933       [libmicrohttpd_msg="no (optional)"],
1934       [libmicrohttpd_msg="yes"])
1935 # -- jansson
1936 AS_IF([test "x$jansson" = "x0"],
1937       [jansson_msg="no (optional)"],
1938       [jansson_msg="yes"])
1939 # -- libextractor
1940 AS_IF([test "$extractor" != 1],
1941       [AC_MSG_WARN([ERROR: libextractor not found, but various file-sharing functions require it])],
1942       [libextractor_msg="yes"])
1943 # -- libzbar
1944 AS_IF([test "x$zbar" = "x1"],
1945       [libzbar_msg="yes"
1946        features_msg="$features_msg gnunet-qr"],
1947       [AC_MSG_NOTICE([WARNING: zbar not found, gnunet-qr will not be built.])
1948        libzbar_msg="no"])
1949 # -- libgnurl
1950 AS_IF([test "$gnurl" = "0"],
1951       [AS_IF([test "x$curl" = "xfalse"],
1952              [AC_MSG_NOTICE([WARNING: libgnurl not found. http client support will not be compiled.])
1953               AC_MSG_WARN([ERROR: libgnurl not found. hostlist daemon will not be compiled, and you probably WANT the hostlist daemon])
1954               curl_msg="no"],
1955              [AC_MSG_NOTICE([WARNING: libgnurl not found, trying to use libcurl-gnutls instead.])
1956               curl_msg="yes"])],
1957        [gnurl_msg="yes"])
1958 # -- ifconfig
1959 AS_IF([test "$VAR_IFCONFIG_BINARY" = "false"],
1960       [AC_MSG_NOTICE([WARNING: optional ifconfig not found])
1961        ifconfig_msg="no (optional)"],
1962       [ifconfig_msg="yes"])
1963 # -- upnpc
1964 AS_IF([test "$VAR_UPNPC_BINARY" = "false"],
1965       [AC_MSG_NOTICE([WARNING: optional upnpc binary not found])
1966        upnpc_msg="no (optional)"],
1967       [upnpc_msg="yes"])
1968 # -- iptables
1969 AS_IF([test "$VAR_IPTABLES_BINARY" = "false"],
1970       [AC_MSG_NOTICE([WARNING: optional iptables not found])
1971        iptables_msg="no (optional)"],
1972       [iptables_msg="yes"])
1973 # -- bluetooth
1974 AS_IF([test "x$bluetooth" = "x0"],
1975       [AC_MSG_NOTICE([WARNING: optional bluetooth library not found.])
1976        bluetooth_msg="no (optional)"],
1977       [bluetooth_msg="yes"])
1978 # -- gnutls
1979 AS_IF([test x$gnutls != xtrue],
1980       [AC_MSG_NOTICE([WARNING: GnuTLS not found, gnunet-gns-proxy will not be built])
1981        gnutls_msg="no"],
1982       [AS_IF([test "x$gnutls_dane" != "x1"],
1983              [AC_MSG_NOTICE([WARNING: GnuTLS has no DANE support, DANE validation will not be possible])
1984               gnutls_msg="yes (without DANE support)"],
1985              [gnutls_msg="yes (with DANE support)"])])
1986 # -- databases
1987 AS_IF([test $mysqlfail = true]
1988       [AC_MSG_NOTICE([WARNING: optional MySQL not found (or too old)])])
1989 AS_IF([test "$mysql" = true],
1990       [features_msg="$features_msg mysql"
1991        mysql_msg="yes"],
1992       [mysql_msg="no"])
1993 AS_IF([test "$sqlite" = true],
1994       [features_msg="$features_msg sqlite"
1995        sqlite_msg="yes"],
1996       [AC_MSG_ERROR([ERROR: sqlite3 not found, but sqlite3 is required.])
1997        sqlite_msg="no"])
1998 AS_IF([test "$postgres" = true],
1999       [features_msg="$features_msg postgres"
2000        postgres_msg="yes"],
2001       [postgres_msg="no"])
2002 # -- features
2003 # ---- 1. replace spaces with newlines,
2004 # ---- 2. sort the lines,
2005 # ---- 3. replace the newlines with spaces.
2006 features_msg=`echo $features_msg | tr ' ' '\012' | sort | tr '\012' ' '`
2007 AC_SUBST(features_msg)
2008
2009
2010 # The summary
2011 # TODO: reduce the length of the last message block ("the message")
2012
2013 AC_MSG_NOTICE([
2014 GNUnet Configuration
2015
2016 gnunet version:                 ${VERSION}
2017
2018 Host setup:                     ${host}
2019 Install prefix:                 ${prefix}
2020 Compiler:                       ${CC}
2021 CFLAGS:                         ${CFLAGS}
2022 CPPFLAGS:                       ${CPPFLAGS}
2023 LDFLAGS:                        ${LDFLAGS}
2024 LIBS:                           ${LIBS}
2025 Build Target:                   $build_target
2026 Mac OSX framework build:        ${macosx_framework_msg}
2027
2028 Default Interface:              ${interface_msg}
2029
2030 MySQL:                          ${mysql_msg}
2031 PostgreSQL:                     ${postgres_msg}
2032 sqlite3:                        ${sqlite_msg}
2033 gnurl:                          ${gnurl_msg}
2034 curl:                           ${curl_msg}
2035 bluetooth:                      ${bluetooth_msg}
2036 jansson:                        ${jansson_msg}
2037 iptables:                       ${iptables_msg}
2038 ifconfig:                       ${ifconfig_msg}
2039 upnpc:                          ${upnpc_msg}
2040 gnutls:                         ${gnutls_msg}
2041 libzbar:                        ${libzbar_msg}
2042 java:                           ${java_msg}
2043 libmicrohttpd:                  ${libmicrohttpd_msg}
2044 libidn:                         ${libidn1_msg}${libidn2_msg}
2045 libopus:                        ${libopus_msg}
2046 gstreamer:                      ${gstreamer_msg}
2047 libpulse:                       ${libpulse_msg}
2048 libextractor:                   ${libextractor_msg}
2049
2050 texinfo manual:                 ${texinfo_msg}
2051 transpiled mdoc manual:         ${mdoc_msg}
2052
2053 features:                       ${features_msg}
2054 experimental:                   ${experimental_msg}
2055
2056
2057 IMPORTANT:
2058
2059 Please make sure NOW that you have created a user and group 'gnunet'
2060 and additionally a group 'gnunetdns'. On Debian and Ubuntu GNU/Linux,
2061 type:
2062
2063   addgroup gnunetdns
2064   adduser --system --group --disabled-login --home /var/lib/gnunet gnunet
2065
2066 Make sure that '/var/lib/gnunet' is owned (and writable) by user
2067 'gnunet'.  Then, you can compile GNUnet with
2068
2069   make
2070
2071 After that, run (if necessary as 'root')
2072
2073   make install
2074
2075 to install everything.
2076
2077 Each GNUnet user should be added to the 'gnunet' group (may
2078 require fresh login to come into effect):
2079
2080   adduser USERNAME gnunet
2081
2082 (run the above command as root once for each of your users, replacing
2083 "USERNAME" with the respective login names).  If you have a global IP
2084 address, no further configuration is required.
2085
2086 For more detailed setup instructions, see https://docs.gnunet.org/
2087
2088 Optionally, download and compile gnunet-gtk to get a GUI for
2089 file-sharing and configuration.  This is particularly recommended
2090 if your network setup is non-trivial, as gnunet-setup can be
2091 used to test in the GUI if your network configuration is working.
2092 gnunet-setup should be run as the "gnunet" user under X.  As it
2093 does very little with the network, running it as "root" is likely
2094 also harmless.  You can also run it as a normal user, but then
2095 you have to copy ~/.gnunet/gnunet.conf" over to the "gnunet" user's
2096 home directory in the end.
2097
2098 Once you have configured your peer, run (as the 'gnunet' user)
2099
2100   gnunet-arm -s
2101
2102 to start the peer.  You can then run the various GNUnet-tools as
2103 your "normal" user (who should only be in the group 'gnunet').
2104 ])