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_CPP
  47 AC_PROG_CXX
  48 AC_PROG_OBJC
  49 AC_PROG_INSTALL
  50 AC_PROG_LN_S
  51 AC_PROG_MAKE_SET
  52 AM_PROG_CC_C_O
  53 LT_INIT([disable-static dlopen win32-dll])
  54 AC_SUBST(MKDIR_P)
  55
  56 # allow for different autotools
  57 AS_AUTOTOOLS_ALTERNATE
  58
  59 # large file support
  60 AC_SYS_LARGEFILE
  61 AC_FUNC_FSEEKO
  62
  63
  64 CFLAGS="-Wall $CFLAGS"
  65 AC_MSG_CHECKING(whether cc can use -fno-strict-aliasing)
  66 # use '-fno-strict-aliasing', but only if the compiler can take it
  67 AS_IF([$CC -fno-strict-aliasing -S -o /dev/null -xc /dev/null >/dev/null 2>&1],
  68  [CFLAGS="-fno-strict-aliasing $CFLAGS"])
  69
  70 # A helper which allows us to check cflags if compiler
  71 AC_DEFUN([CC_CHECK_CFLAGS_SILENT], [
  72   AC_CACHE_VAL(AS_TR_SH([cc_cv_cflags_$1]),
  73     [ac_save_CFLAGS="$CFLAGS"
  74      CFLAGS="$CFLAGS $1 -Werror"
  75      AC_LINK_IFELSE([AC_LANG_SOURCE([int main() { return 0; }])],
  76        [eval "AS_TR_SH([cc_cv_cflags_$1])='yes'"],
  77        [eval "AS_TR_SH([cc_cv_cflags_$1])='no'"])
  78      CFLAGS="$ac_save_CFLAGS"
  79     ])
  80
  81   AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_$1])[ = xyes],
  82     [$2], [$3])
  83 ])
  84
  85
  86 # CC_CHECK_CFLAG_APPEND(FLAG, [action-if-found], [action-if-not-found])
  87 # Check for CFLAG and appends them to CFLAGS if supported
  88 AC_DEFUN([CC_CHECK_CFLAG_APPEND], [
  89   AC_CACHE_CHECK([if $CC supports -Wno-$1 flag],
  90     AS_TR_SH([cc_cv_cflags_-W$1]),
  91     CC_CHECK_CFLAGS_SILENT([-W$1]) #gcc is stupid. It does not fail with the -W-no option for backwards compat but then shows the error "in case something goes wrong".
  92   )
  93
  94   AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_-W$1])[ = xyes],
  95     [CFLAGS="$CFLAGS -Wno-$1"; $2], [$3])
  96 ])
  97
  98
  99 # We make heavy use of this, llvm/gcc and gcc-9 give warnings so disable.
 100 CC_CHECK_CFLAG_APPEND([address-of-packed-member])
 101
 102 # Use Linux interface name unless the OS has a different preference
 103 DEFAULT_INTERFACE="\"eth0\""
 104
 105 funcstocheck="getnameinfo gethostname gethostbyname gethostbyaddr getaddrinfo getaddrinfo_a"
 106
 107 # Srcdir in a form that native compiler understands (i.e. DOS path on W32)
 108 native_srcdir=$srcdir
 109
 110 OLD_LDFLAGS="$LDFLAGS"
 111 LDFLAGS="$LDFLAGS -Wl,--unresolved-symbols=report-all"
 112
 113 # Check system type
 114 AS_CASE(["$host_os"],
 115   [*darwin* | *rhapsody* | *macosx*],[
 116      AC_DEFINE_UNQUOTED(DARWIN,1,[This is an Apple Darwin system])
 117      CPPFLAGS="-D_APPLE_C_SOURCE $CPPFLAGS"
 118      CFLAGS="-fno-common $CFLAGS"
 119      LDFLAGS="$OLD_LDFLAGS"
 120      AC_MSG_WARN([WARNING: The VPN application cannot be compiled on your OS])
 121      AC_CHECK_LIB(intl, gettext)
 122      build_target="darwin"
 123      DEFAULT_INTERFACE="\"en0\""
 124      LIBPREFIX=
 125      DLLDIR=lib
 126      UNIXONLY="#"
 127   ],
 128   [linux*],[
 129      AC_DEFINE_UNQUOTED(LINUX,1,[This is a Linux kernel])
 130      build_target="linux"
 131      LIBPREFIX=
 132      DLLDIR=lib
 133      UNIXONLY="#"
 134      AC_PATH_XTRA
 135   ],
 136   [*freebsd*],[
 137      AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
 138      AC_DEFINE_UNQUOTED(FREEBSD,1,[This is a FreeBSD system])
 139      CFLAGS="-D_THREAD_SAFE $CFLAGS"
 140      build_target="freebsd"
 141      LIBPREFIX=
 142      DLLDIR=lib
 143      UNIXONLY="#"
 144   ],
 145   [*openbsd*],[
 146      AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
 147      AC_DEFINE_UNQUOTED(OPENBSD,1,[This is an OpenBSD system])
 148      LIBS=`echo $LIBS | sed -e "s/-ldl//"`
 149      build_target="openbsd"
 150      LIBPREFIX=
 151      DLLDIR=lib
 152      UNIXONLY="#"
 153   ],
 154   [*netbsd*],[
 155      AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
 156      AC_DEFINE_UNQUOTED(NETBSD,1,[This is a NetBSD system])
 157      build_target="netbsd"
 158      LIBPREFIX=
 159      DLLDIR=lib
 160      UNIXONLY="#"
 161   ],
 162   [*solaris*],[
 163      AC_DEFINE_UNQUOTED(SOLARIS,1,[This is a Solaris system])
 164      AC_DEFINE_UNQUOTED(_REENTRANT,1,[Need with solaris or errno doesnt work])
 165      AC_CHECK_LIB(resolv, res_init)
 166      AC_CHECK_LIB(rt, nanosleep)
 167      build_target="solaris"
 168      LIBPREFIX=
 169      DLLDIR=lib
 170      UNIXONLY="#"
 171   ],
 172   [*arm-linux*],[
 173      AC_DEFINE_UNQUOTED(LINUX,1,[This is a Linux kernel])
 174      CFLAGS="-D_REENTRANT -fPIC -pipe $CFLAGS"
 175      build_target="linux"
 176      LIBPREFIX=
 177      DLLDIR=lib
 178      UNIXONLY="#"
 179   ],
 180   [gnu*],[
 181      AC_DEFINE_UNQUOTED(GNU,1,[This is a GNU system])
 182      build_target="gnu"
 183      UNIXONLY="#"
 184   ],
 185   [
 186      AC_MSG_RESULT(Unrecognised OS $host_os)
 187      AC_DEFINE_UNQUOTED(OTHEROS,1,[Some strange OS])
 188      UNIXONLY=""
 189 ])
 190 AC_DEFINE_UNQUOTED([GNUNET_DEFAULT_INTERFACE], $DEFAULT_INTERFACE, [This should be the default choice for the name of the first network interface])
 191 AC_SUBST(DEFAULT_INTERFACE)
 192
 193 # Disable TCP-based IPC on systems that support UNIX domain
 194 # sockets in default configuratin:
 195 AC_SUBST(UNIXONLY)
 196
 197
 198 AC_MSG_CHECKING([for build target])
 199 AM_CONDITIONAL(DARWIN,  test "$build_target" = "darwin")
 200 AM_CONDITIONAL(SOLARIS, test "$build_target" = "solaris")
 201 AM_CONDITIONAL(XNETBSD, test "$build_target" = "netbsd")
 202 AM_CONDITIONAL(XFREEBSD, test "$build_target" = "freebsd")
 203 AM_CONDITIONAL(OPENBSD, test "$build_target" = "openbsd")
 204 AM_CONDITIONAL(LINUX, test "$build_target" = "linux")
 205 AM_CONDITIONAL(GNU, test "$build_target" = "gnu")
 206
 207 AC_MSG_RESULT([$build_target])
 208 AC_SUBST(build_target)
 209 AM_CONDITIONAL([am__fastdepOBJC], false)
 210 AC_UNALIGNED_64_ACCESS
 211
 212 # some other checks for standard libs
 213 AC_SEARCH_LIBS([gethostbyname], [nsl ws2_32])
 214 AC_SEARCH_LIBS([memrchr], [],
 215                AC_DEFINE(HAVE_MEMRCHR,1,[memrchr supported]), [])
 216 AC_SEARCH_LIBS([memset_s], [],
 217                AC_DEFINE(HAVE_MEMSET_S,1,[memset_s supported]), [])
 218 AC_SEARCH_LIBS([memset_s], [],
 219                AC_DEFINE(HAVE_EXPLICIT_BZERO,1,[explicit_bzero supported]), [])
 220 AC_CHECK_LIB(socket, socket)
 221 AC_CHECK_LIB(m, log)
 222 AC_CHECK_LIB(c, getloadavg, AC_DEFINE(HAVE_GETLOADAVG,1,[getloadavg supported]))
 223
 224 AC_CHECK_PROG(VAR_GETOPT_BINARY, getopt, true, false)
 225 AM_CONDITIONAL(HAVE_GETOPT_BINARY, $VAR_GETOPT_BINARY)
 226
 227 AC_CHECK_PROG(VAR_SSH_BINARY, ssh, true, false)
 228 AM_CONDITIONAL(HAVE_SSH_BINARY, $VAR_SSH_BINARY)
 229 AM_CONDITIONAL(HAVE_SSH_KEY,  ssh -D 12345 -o "BatchMode yes" -o "UserKnownHostsFile /tmp/gnunet_test_cosks_ssh_garbage" -o "StrictHostKeyChecking no" 127.0.0.1 echo -n)
 230 rm -f /tmp/gnunet_test_cosks_ssh_garbage
 231
 232 # autotools' m4 for python has no maximum version!
 233 # python3.4 - python3.7 for tests
 234 m4_define_default([_AM_PYTHON_INTERPRETER_LIST],[python3 python3.4 python3.5 python3.6 python3.7 python])
 235 AM_PATH_PYTHON([3.4],, [:])
 236 AC_SUBST([PYTHON])
 237 AM_CONDITIONAL([HAVE_PYTHON], [test "$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 AC_CHECK_MEMBER(struct tm.tm_gmtoff,
 319   [AC_DEFINE(HAVE_TM_GMTOFF, 1,
 320      [Define if struct tm has the tm_gmtoff member.])],
 321      ,
 322      [#include <time.h>])
 323
 324 # 'save' libs; only those libs found so far will be
 325 # linked against _everywhere_.  For the others, we
 326 # will be more selective!
 327 SAVE_LIBS=$LIBS
 328
 329 have_addrinfo_a=0
 330 AC_CHECK_LIB(anl,
 331              getaddrinfo_a,
 332              [have_addrinfo_a=1 AC_DEFINE(HAVE_GETADDRINFO_A,
 333                                           1,
 334                                           [getaddrinfo_a supported])])
 335 AM_CONDITIONAL(HAVE_GETADDRINFO_A,
 336                [test "$have_addrinfo_a" = 1])
 337
 338 # libgcrypt
 339 gcrypt=0
 340 NEED_LIBGCRYPT_API=1
 341 NEED_LIBGCRYPT_VERSION=1.6.0
 342
 343
 344 AM_PATH_LIBGCRYPT("$NEED_LIBGCRYPT_API:$NEED_LIBGCRYPT_VERSION", gcrypt=1)
 345 AC_CHECK_DECLS([gcry_mpi_set_opaque_copy], [], [], [[#include <gcrypt.h>]])
 346
 347 AS_IF([test $gcrypt = 0],
 348  [
 349   AC_MSG_ERROR([[
 350 ***
 351 *** You need libgcrypt to build this program.
 352 **  This library is for example available at
 353 ***   ftp://ftp.gnupg.org/gcrypt/libgcrypt/
 354 *** (at least version $NEED_LIBGCRYPT_VERSION (API $NEED_LIBGCRYPT_API)
 355 ***  is required.)
 356 ***]])
 357 ])
 358 AC_DEFINE_UNQUOTED([NEED_LIBGCRYPT_VERSION], "$NEED_LIBGCRYPT_VERSION", [required libgcrypt version])
 359
 360 AC_CHECK_DECLS([struct in6_ifreq], [], [], [[#include <linux/if_tun.h>]])
 361
 362
 363
 364 # should the build process be building the documentation?
 365 AC_MSG_CHECKING(whether to build documentation)
 366 AC_ARG_ENABLE([documentation],
 367               [AS_HELP_STRING([--disable-documentation],
 368                               [do not build the documentation])],
 369               [documentation=${enableval}],
 370               [documentation=yes])
 371 AC_MSG_RESULT($documentation)
 372 AS_IF([test "x$documentation" = "xyes"],
 373       [AM_CONDITIONAL([DOCUMENTATION],
 374                       true)
 375        AC_DEFINE([DOCUMENTATION],
 376                  [1],
 377                  [Building the documentation])],
 378       [AM_CONDITIONAL([DOCUMENTATION],
 379                       false)
 380        AC_DEFINE([DOCUMENTATION],
 381                  [0],
 382                  [Not building the documentation])])
 383
 384 # COMMENT: Check wether to transpile texinfo to mdoc.
 385 # COMMENT: This is TRUE when --enable-texi2mdoc-generation
 386 # COMMENT: but ERRORS when texi2mdoc binary is missing in your $PATH
 387 # COMMENT: and makes the configure fail if it is missing.
 388 # COMMENT: Consequential the DEFINE and CONDITIONAL are set to true.
 389 # COMMENT: This is FALSE when --disable-texi2mdoc-generation was set
 390 # COMMENT: or nothing was set (this is the default).
 391 # COMMENT: There are 2 nested AS_IFs because we need to catch the
 392 # COMMENT: potential non-existence of the texi2mdoc binary.
 393 # COMMENT: Default return value / setting: no
 394 AC_MSG_CHECKING(wether to include generated texi2mdoc output in installation)
 395 AC_ARG_ENABLE([texi2mdoc-generation],
 396               [AS_HELP_STRING([--enable-texi2mdoc-generation],
 397                               [include generated texi2mdoc output in installation])],
 398               [texi2mdoc_generation=${enableval}],
 399               [texi2mdoc_generation=no])
 400 AC_MSG_RESULT($texi2mdoc_generation)
 401 AS_IF([test "x$texi2mdoc_generation" = "xyes"],
 402       [AS_IF([test "$texi2mdoc" = 0],
 403              [AC_MSG_WARN([ERROR: transpiled mdoc output requires texi2mdoc.])
 404               AC_MSG_WARN([ERROR: texi2mdoc can be obtained via your Operating System])
 405               AC_MSG_WARN([ERROR: package manager or from https://mandoc.bsd.lv/texi2mdoc/])],
 406              [AM_CONDITIONAL([TEXI2MDOC_GENERATION],true)
 407               AC_DEFINE([TEXI2MDOC_GENERATION],
 408                         [1],
 409                         [Building section 7 mdoc output])])],
 410       [AM_CONDITIONAL([TEXI2MDOC_GENERATION],
 411                       false)
 412        AC_DEFINE([TEXI2MDOC_GENERATION],
 413                  [0],
 414                  [Not building section 7 mdoc output])])
 415
 416 # should the build process be building only the documentation?
 417 AC_MSG_CHECKING(whether to build only documentation)
 418 AC_ARG_ENABLE([documentation-only],
 419    [AS_HELP_STRING([--enable-documentation-only], [build only the documentation])],
 420    [documentation_only=${enableval}],
 421    [documentation_only=no])
 422 AC_MSG_RESULT($documentation_only)
 423 AS_IF([test "x$documentation_only" = "xyes"],
 424  [
 425   AM_CONDITIONAL([DOCUMENTATION_ONLY],true)
 426   AC_DEFINE([DOCUMENTATION_ONLY],[1],[Building only the documentation])
 427  ],[
 428   AM_CONDITIONAL([DOCUMENTATION_ONLY],false)
 429   # TODO: Double negation might be a bit hard to parse for some
 430   # TODO: people reading the output.
 431   AC_DEFINE([DOCUMENTATION_ONLY],[0],[Not building only the documentation])
 432  ])
 433
 434 # should the build process be including the manpages? (default: yes)
 435 AC_MSG_CHECKING(whether to include man pages)
 436 AC_ARG_ENABLE([include-manpages],
 437    [AS_HELP_STRING([--disable-include-manpages], [Do not include the man pages in build and installation])],
 438    [include_manpages=${enableval}],
 439    [include_manpages=yes])
 440 AC_MSG_RESULT($include_manpages)
 441 AS_IF([test "x$include_manpages" = "xyes"],
 442  [
 443   AM_CONDITIONAL([INCLUDE_MANPAGES],true)
 444   AC_DEFINE([INCLUDE_MANPAGES],[1],[Including the man pages in the build and installation])
 445  ],[
 446   AM_CONDITIONAL([INCLUDE_MANPAGES],false)
 447   AC_DEFINE([INCLUDE_MANPAGES],[0],[Not including the man pages in the build and installation])
 448  ])
 449
 450 # Do we have texinfo4? If yes, it is used to set texinfo4 specific switches
 451 # (not syntax!) to the commandline tools which generate the html. If not,
 452 # texinfo5 switches are used. This comes with no version checks, is
 453 # enabled only at distributors action (ie defaults to "no").
 454 # Mantis #3914 for more details (https://bugs.gnunet.org/view.php?id=3914)
 455 AC_MSG_CHECKING(whether to enable texinfo4 switches)
 456 AC_ARG_ENABLE([texinfo4],
 457    [AS_HELP_STRING([--enable-texinfo4], [Use texinfo version 4 specific switches])],
 458    [activate_texinfo4=${enableval}],
 459    [activate_texinfo4=no])
 460 AC_MSG_RESULT($activate_texinfo4)
 461 AS_IF([test "x$activate_texinfo4" = "xyes"],
 462  [
 463   AM_CONDITIONAL([ACTIVATE_TEXINFO4],true)
 464   AC_DEFINE([ACTIVATE_TEXINFO4],[1],[Using texinfo version 4 specific switches])
 465  ],[
 466   AM_CONDITIONAL([ACTIVATE_TEXINFO4],false)
 467   AC_DEFINE([INCLUDE_MANPAGES],[0],[Using texinfo version 5 or later switches])
 468  ])
 469
 470
 471 # Adam shostack suggests the following for Windows:
 472 # -D_FORTIFY_SOURCE=2 -fstack-protector-all
 473 AC_ARG_ENABLE(gcc-hardening,
 474    AS_HELP_STRING(--enable-gcc-hardening, enable compiler security checks),
 475 [AS_IF([test x$enableval = xyes],[
 476     CFLAGS="$CFLAGS -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-all"
 477     CFLAGS="$CFLAGS -fwrapv -fPIE -Wstack-protector"
 478     CFLAGS="$CFLAGS --param ssp-buffer-size=1"
 479     LDFLAGS="$LDFLAGS -pie"
 480  ])])
 481
 482 # Linker hardening options
 483 # Currently these options are ELF specific - you can't use this with MacOSX
 484 AC_ARG_ENABLE(linker-hardening,
 485   AS_HELP_STRING(--enable-linker-hardening, enable linker security fixups),
 486 [AS_IF([test x$enableval = xyes],
 487    [LDFLAGS="$LDFLAGS -z relro -z now"])])
 488
 489
 490 AC_ARG_ENABLE(sanitizer,
 491   AS_HELP_STRING(--enable-sanitizer, enable Address Sanitizer and Undefined Behavior Sanitizer),
 492 [AS_IF([test x$enableval = xyes],[
 493    LDFLAGS="$CFLAGS -fsanitize=address,undefined -fno-omit-frame-pointer"
 494  ])])
 495
 496
 497 extra_logging=GNUNET_NO
 498 AC_ARG_ENABLE([logging],
 499    AS_HELP_STRING([--enable-logging@<:@=value@:>@],[Enable logging calls. Possible values: yes,no,verbose,veryverbose ('yes' is the default)]),
 500    [AS_IF([test "x$enableval" = "xyes"], [],
 501           [test "x$enableval" = "xno"], [AC_DEFINE([GNUNET_CULL_LOGGING],[],[Define to cull all logging calls])],
 502           [test "x$enableval" = "xverbose"], [extra_logging=GNUNET_YES]
 503           [test "x$enableval" = "xveryverbose"], [extra_logging=\(GNUNET_YES+1\)])
 504    ], [])
 505 AC_DEFINE_UNQUOTED([GNUNET_EXTRA_LOGGING],[$extra_logging],[1 if extra logging is enabled, 2 for very verbose extra logging, 0 otherwise])
 506
 507 # should memory poisoning be enabled?
 508 AC_MSG_CHECKING(whether to poison freed memory)
 509 AC_ARG_ENABLE([poisoning],
 510    [AS_HELP_STRING([--enable-poisoning], [enable poisoning of freed memory (good for debugging)])],
 511    [enable_poisoning=${enableval}],
 512    [
 513      AS_IF([test "x$extra_logging" != "xGNUNET_NO"],
 514        [enable_poisoning="defaults to yes (extra logging is enabled)"],
 515        [enable_poisoning=no])
 516    ])
 517 AC_MSG_RESULT($enable_poisoning)
 518 AS_IF([test ! "x$enable_poisoning" = "xno"],
 519   [enable_poisoning=1],
 520   [enable_poisoning=0])
 521 AC_DEFINE_UNQUOTED([ENABLE_POISONING],[$enable_poisoning],[1 if freed memory should be poisoned, 0 otherwise])
 522
 523 AS_IF([test $build = $target],
 524 [
 525 AC_MSG_CHECKING([for working HMAC])
 526 AC_LANG_PUSH(C)
 527 LIBS="$LIBS $LIBGCRYPT_LIBS"
 528 CFLAGS="$CFLAGS $LIBGCRYPT_CFLAGS"
 529 AC_RUN_IFELSE(
 530   [AC_LANG_PROGRAM([#include <gcrypt.h>
 531         #include <stdio.h>], [[
 532         gcry_md_hd_t mac;
 533
 534         unsigned char data[] = { 0xbf, 0x16, 0x6e, 0x46, 0x3a, 0x6c, 0xf3, 0x93, 0xa7, 0x72,
 535             0x11, 0xa1, 0xdc, 0x0b, 0x07, 0xdb, 0x1a, 0x5e, 0xd9, 0xb9, 0x81, 0xbe,
 536             0xea, 0xe4, 0x31, 0x5f, 0x24, 0xff, 0xfe, 0x50, 0x8a, 0xde };
 537         unsigned char key[] = { 0xfc, 0x62, 0x76, 0x35 };
 538         unsigned char result[] = {0xa2, 0xb, 0x1, 0xd9, 0xc0, 0x8b, 0x5a, 0x12, 0x80,
 539             0xd5, 0x50, 0x12, 0x8e, 0xd0, 0x5b, 0xb6, 0x5c, 0x87, 0x24, 0xe2, 0xd0,
 540             0xd2, 0xaf, 0x63, 0xae, 0xd1, 0xd6, 0x64, 0x14, 0xe3, 0x6e, 0x61, 0x5b,
 541             0xd, 0xba, 0x17, 0x7d, 0xd3, 0x10, 0xb1, 0x37, 0x41, 0x91, 0x7d, 0xeb,
 542             0x1, 0x4d, 0x71, 0xe8, 0x59, 0x71, 0x42, 0x8e, 0xd6, 0xf3, 0x29, 0x3b,
 543             0x90, 0xf2, 0xd1, 0xaf, 0x65, 0x1e, 0xb3};
 544
 545         if (!gcry_check_version (GCRYPT_VERSION))
 546         {
 547           fprintf (stderr, "Version mismatch %s <-> %s \n", gcry_check_version (NULL), GCRYPT_VERSION);
 548           return 1;
 549         }
 550
 551         gcry_control (GCRYCTL_DISABLE_SECMEM, 0);
 552         gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
 553
 554         if (gcry_md_open(&mac, GCRY_MD_SHA512, GCRY_MD_FLAG_HMAC) != GPG_ERR_NO_ERROR)
 555         {
 556           fprintf (stderr, "gcry_md_open error\n");
 557           return 2;
 558         }
 559
 560         gcry_md_setkey (mac, key, sizeof (key));
 561         gcry_md_write (mac, data, sizeof (data));
 562
 563         if (memcmp(gcry_md_read (mac, 0), result, gcry_md_get_algo_dlen (gcry_md_get_algo (mac))) != 0)
 564         {
 565           fprintf (stderr, "memcmp error\n");
 566           return 3;
 567         }
 568
 569         gcry_md_close (mac);
 570
 571         return 0;
 572     ]])],
 573   [AC_MSG_RESULT([yes])],
 574   [
 575    RESULT=$?
 576    if test $RESULT = 3
 577    then
 578      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.])
 579    fi
 580    if test $RESULT = 2
 581    then
 582      AC_MSG_FAILURE([HMAC test failed])
 583    fi
 584    if test $RESULT = 1
 585    then
 586      AC_MSG_FAILURE([libgcrypt header version does not match library version])
 587    fi
 588   ],
 589   [AC_MSG_RESULT([cross compiling, test skipped])])
 590 AC_LANG_POP(C)
 591 ])      # $build = $target
 592
 593 # check for bluetooth library
 594 bluetooth=0
 595 CHECK_LIBHEADER(BLUETOOTH, bluetooth, ba2str, bluetooth/bluetooth.h,bluetooth=1,)
 596 AM_CONDITIONAL(HAVE_LIBBLUETOOTH, [test "$bluetooth" = 1])
 597 AS_IF([test "$bluetooth" = 1],
 598  [AC_DEFINE([HAVE_LIBBLUETOOTH],[1],[Have bluetooth library])],
 599  [AC_DEFINE([HAVE_LIBBLUETOOTH],[0],[Lacking bluetooth library])])
 600
 601 # check for zbar library
 602 zbar=0
 603 AC_MSG_CHECKING(for libzbar)
 604 AC_ARG_WITH(zbar,
 605    [  --with-zbar=PREFIX (base of libzbar installation)],
 606    [AC_MSG_RESULT([$with_zbar])
 607     AS_CASE([$with_zbar],
 608       [no],[],
 609       [yes],[CHECK_LIBHEADER(ZBAR, zbar, zbar_processor_create, zbar.h,zbar=1,,)],
 610       [
 611         LDFLAGS="-L$with_zbar/lib $LDFLAGS"
 612         CPPFLAGS="-I$with_zbar/include $CPPFLAGS"
 613         AC_CHECK_HEADERS(zbar.h,
 614           AC_CHECK_LIB([zbar], [zbar_processor_create],
 615             EXT_LIB_PATH="-L$with_zbar/lib $EXT_LIB_PATH"
 616             zbar=1))
 617        ])
 618    ],
 619    [AC_MSG_RESULT([--with-zbar not specified])
 620     CHECK_LIBHEADER(ZBAR, zbar, zbar_processor_create, zbar.h,zbar=1,,)])
 621 AM_CONDITIONAL(HAVE_ZBAR, [test "$zbar" = 1])
 622 AS_IF([test "x$zbar" = x1],
 623       [AC_DEFINE([HAVE_ZBAR],[1],[Have zbar library])],
 624       [AC_DEFINE([HAVE_ZBAR],[0],[Lacking zbar library])])
 625
 626 # check for jansson library
 627 jansson=0
 628 AC_MSG_CHECKING(for libjansson)
 629 AC_ARG_WITH(jansson,
 630    [  --with-jansson=PREFIX (base of libjansson installation)],
 631    [AC_MSG_RESULT([$with_jansson])
 632     AS_CASE([$with_jansson],
 633       [no],[],
 634       [yes],[
 635         CHECK_LIBHEADER(JANSSON, jansson, json_loads, jansson.h,jansson=1,)
 636       ],[
 637         LDFLAGS="-L$with_jansson/lib $LDFLAGS"
 638         CPPFLAGS="-I$with_jansson/include $CPPFLAGS"
 639         AC_CHECK_HEADERS(jansson.h,
 640           AC_CHECK_LIB([jansson], [json_loads],
 641             EXT_LIB_PATH="-L$with_jansson/lib $EXT_LIB_PATH"
 642             jansson=1))
 643       ])
 644    ],
 645    [AC_MSG_RESULT([--with-jansson not specified])
 646     CHECK_LIBHEADER(JANSSON, jansson, json_loads, jansson.h,jansson=1,)])
 647 AM_CONDITIONAL(HAVE_JANSSON, [test "$jansson" = 1])
 648 AM_CONDITIONAL(HAVE_JSON, [test x$jansson = x1])
 649 AS_IF([test "x$jansson" = x1],
 650       [AC_DEFINE([HAVE_JANSSON],[1],[Have jansson library])],
 651       [AC_DEFINE([HAVE_JANSSON],[0],[Lacking jansson library])])
 652
 653
 654 # check for libpulse(audio) library
 655 pulse=0
 656 libpulse_msg="no"
 657 CHECK_LIBHEADER(LIBPULSE, pulse, pa_stream_peek, pulse/simple.h,pulse=1,)
 658 AS_IF([test "$pulse" = 1],
 659       [AC_DEFINE([HAVE_PULSE],[1],[Have libpulse(audio) library])
 660        libpulse_msg="yes"])
 661
 662 # check for libopus(audio) library
 663 opus=0
 664 libopus_msg="no"
 665 CHECK_LIBHEADER(LIBOPUS,
 666                 opus,
 667                 opus_decode_float,
 668                 opus/opus.h,
 669                 AC_CHECK_DECL([OPUS_SET_GAIN],[opus=1],[],[[#include <opus/opus.h>]]))
 670 AS_IF([test "x$opus" = x1],
 671       [AC_DEFINE([HAVE_OPUS],[1],[Have libopus library])
 672        libopus_msg="yes"])
 673
 674 # libogg
 675 AC_CHECK_LIB(ogg, ogg_stream_flush_fill,
 676         [AC_CHECK_HEADERS([ogg/ogg.h],
 677           AM_CONDITIONAL(HAVE_OGG, true)
 678           ogg=1
 679           AC_DEFINE(HAVE_OGG,1,[Have ogg]),
 680           AM_CONDITIONAL(HAVE_OGG, false)
 681           ogg=0
 682           AC_DEFINE(HAVE_OGG,0,[lacking ogg]))],
 683         AM_CONDITIONAL(HAVE_OGG, false)
 684         ogg=0)
 685
 686
 687 PKG_CHECK_MODULES([GLIB],
 688                   [glib-2.0],
 689   [# check for pbc library
 690   pbc=0
 691    AC_CHECK_HEADER([pbc/pbc.h],pbc=1)
 692    AC_CHECK_HEADER([gabe.h],abe=1)
 693    AM_CONDITIONAL(HAVE_PBC, [test "x$pbc" = x1])
 694    AM_CONDITIONAL(HAVE_ABE, [test "x$abe" = x1])
 695    AS_IF([test "x$pbc" = x1],
 696      [AC_DEFINE([HAVE_PBC],[1],[Have pbc library])],
 697      [AC_DEFINE([HAVE_PBC],[0],[Lacking pbc library])])
 698    AS_IF([test "x$abe" = x1],
 699     [AC_DEFINE([HAVE_ABE],[1],[Have ABE library])],
 700     [AC_DEFINE([HAVE_ABE],[0],[Lacking ABE library])])],
 701   [# glib-2 not found
 702    AM_CONDITIONAL(HAVE_PBC, [false])
 703    AM_CONDITIONAL(HAVE_ABE, [false])
 704    AC_DEFINE([HAVE_PBC],[0],[Lacking glib library])])
 705
 706 gst=0
 707 gstreamer_msg="no"
 708 PKG_CHECK_MODULES(
 709   [GST],
 710   [glib-2.0 gobject-2.0 gstreamer-1.0 gstreamer-app-1.0 gstreamer-audio-1.0],
 711   [gst=1
 712    gstreamer_msg="yes"],
 713   [gst=0])
 714
 715 # Pulse Audio
 716 AS_IF([test "x$pulse" != "x1" -o "x$opus" != "x1" -o "x$ogg" != "x1"],[
 717  AS_IF([test "x$gst" != "x1"],[
 718   conversation_backend=none
 719   AM_CONDITIONAL(BUILD_PULSE_HELPERS, false)
 720   AM_CONDITIONAL(BUILD_GST_HELPERS, false)
 721   AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
 722  ],[
 723    conversation_backend=gst
 724    AM_CONDITIONAL(BUILD_PULSE_HELPERS, false)
 725    AM_CONDITIONAL(BUILD_GST_HELPERS, true)
 726    AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
 727  ])
 728 ],[
 729  conversation_backend=pulse
 730  AM_CONDITIONAL(BUILD_PULSE_HELPERS, true)
 731  AM_CONDITIONAL(BUILD_GST_HELPERS, false)
 732  AM_CONDITIONAL(BUILD_EXPERIMENTAL_HELPERS, false)
 733 ])
 734
 735 AS_IF([test "x$conversation_backend" = "xnone"],
 736       AM_CONDITIONAL(BUILD_CONVERSATION, false),
 737       AM_CONDITIONAL(BUILD_CONVERSATION, true))
 738
 739 # libgnurl
 740 LIBGNURL_CHECK_CONFIG(,7.34.0,gnurl=1,gnurl=0)
 741
 742 SAVE_CPPFLAGS=$CPPFLAGS
 743 CPPFLAGS="$LIBGNURL_CPPFLAGS $LIBCURL_CPPFLAGS $CPPFLAGS"
 744 LIBS="$LIBGNURL $LIBCURL $LIBS"
 745
 746 # libcurl-gnutls
 747 LIBCURL_CHECK_CONFIG(,7.34.0,[curl=true],[curl=false])
 748 AS_IF([test "x$curl" = xtrue],[
 749  AC_CHECK_HEADER([curl/curl.h],
 750   AC_CHECK_DECLS(CURLINFO_TLS_SESSION,[curl=true],[curl=false],[[#include <curl/curl.h>]]),
 751   [curl=false])
 752  # need libcurl-gnutls.so, everything else is not acceptable
 753  AC_CHECK_LIB([curl-gnutls],[curl_easy_getinfo],,[curl=false])
 754  # cURL must support CURLINFO_TLS_SESSION, version >= 7.34
 755 ])
 756
 757 # libcurl and libgnurl should be mutually exclusive
 758 AS_IF([test "$gnurl" = 1],
 759       [AM_CONDITIONAL(HAVE_LIBGNURL, true)
 760        AC_DEFINE([HAVE_LIBGNURL],[1],[Have libgnurl])
 761        AM_CONDITIONAL(HAVE_LIBCURL, false)
 762        AC_DEFINE([HAVE_LIBCURL],[0],[Lacking libcurl])],
 763       [AS_IF([test "$curl" = true],
 764              [AM_CONDITIONAL(HAVE_LIBGNURL, false)
 765               AC_DEFINE([HAVE_LIBGNURL],[0],[Lacking libgnurl])
 766               AM_CONDITIONAL(HAVE_LIBCURL, true)
 767               AC_DEFINE([HAVE_LIBCURL],[1],[Have libcurl])],
 768              [AC_MSG_WARN([ERROR: GNUnet requires libcurl-gnutls or gnurl >= 7.34])
 769               AM_CONDITIONAL(HAVE_LIBGNURL, false)
 770               AC_DEFINE([HAVE_LIBGNURL],[0],[Lacking libgnurl])
 771               AM_CONDITIONAL(HAVE_LIBCURL, false)
 772               AC_DEFINE([HAVE_LIBCURL],[0],[Lacking libcurl])])])
 773
 774 AC_SEARCH_LIBS(__atomic_load_8, atomic, [have_libatomic=1 AC_DEFINE(HAVE_LIBATOMIC,1,[external libatomic])])
 775 AM_CONDITIONAL(HAVE_LIBATOMIC, [test "$have_libatomic" = 1])
 776
 777 # restore LIBS & CPPFLAGS
 778 LIBS=$SAVE_LIBS
 779 CPPFLAGS=$SAVE_CPPFLAGS
 780
 781 AC_CHECK_HEADERS([glpk.h],[glpk=true],[glpk=false])
 782 # GLPK must support glpk_init_env, version >= 4.43
 783 AC_CHECK_LIB([glpk],[glp_init_env],,[glpk=false])
 784 # GLPK must support atm MLP presolving, version >= 4.32
 785 AC_CHECK_MEMBERS(glp_iocp.presolve,,[glpk=false],[[#include <glpk.h>]])
 786 AS_IF([test "x$glpk" = xfalse],
 787 [
 788         AM_CONDITIONAL(HAVE_LIBGLPK, false)
 789         AC_MSG_WARN([ERROR: GNUnet requires GLPK  >= 4.32])
 790 ],[
 791         AM_CONDITIONAL(HAVE_LIBGLPK, true)
 792         AC_DEFINE([HAVE_LIBGLPK],[1],[Have GLPK])
 793 ])
 794
 795
 796 AC_CHECK_HEADERS([nss.h],[nss=true],[nss=false])
 797 AS_IF([test x$nss = xfalse],
 798   [
 799         AM_CONDITIONAL(HAVE_GLIBCNSS, false)
 800         AC_MSG_WARN([No GNU libc nss header, will not build NSS plugin])
 801   ],[
 802         NSS_INCLUDES="
 803         #include <nss.h>
 804         "
 805         AC_CHECK_DECL([NSS_STATUS_UNAVAIL],
 806                 [AM_CONDITIONAL(HAVE_GLIBCNSS, true)],
 807                 [AM_CONDITIONAL(HAVE_GLIBCNSS, false)
 808                  AC_MSG_WARN([No nss header fails to define NSS_STATUS_UNAVAIl, will not build NSS plugin])],
 809                 [$NSS_INCLUDES])
 810 ])
 811
 812
 813
 814 # test for kvm and kstat (for CPU stats under BSD/Solaris)
 815 AC_CHECK_LIB([kvm],[kvm_open])
 816 AC_CHECK_LIB([kstat],[kstat_open])
 817
 818
 819 # should the build process be restricted to the code required
 820 # for GNU Taler wallets?
 821 AC_MSG_CHECKING(whether to compile GNU Taler Wallet library ONLY)
 822 AC_ARG_ENABLE([taler-wallet],
 823    [AS_HELP_STRING([--enable-taler-wallet], [only compile for Taler wallet])],
 824    [taler_only=${enableval}],
 825    [taler_only=no])
 826 AC_MSG_RESULT($taler_only)
 827 AS_IF([test "x$taler_only" = "xyes"],
 828 [
 829   AM_CONDITIONAL([TALER_ONLY],true)
 830   AC_DEFINE([TALER_WALLET_ONLY],[1],[Compiling for Taler wallet])
 831 ],[
 832   AM_CONDITIONAL([TALER_ONLY],false)
 833   AC_DEFINE([TALER_WALLET_ONLY],[0],[Canonical compilation])
 834 ])
 835
 836 # test for libextractor
 837 extractor=0
 838 AC_MSG_CHECKING(for libextractor)
 839 AC_ARG_WITH(extractor,
 840    [  --with-extractor=PREFIX (base of libextractor installation)],
 841    [AC_MSG_RESULT([$with_extractor])
 842     AS_CASE([$with_extractor],
 843       [no],[],
 844       [yes],[
 845         AC_CHECK_HEADERS([extractor.h],
 846           AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
 847             extractor=1))
 848       ],[
 849         LDFLAGS="-L$with_extractor/lib $LDFLAGS"
 850         CPPFLAGS="-I$with_extractor/include $CPPFLAGS"
 851         AC_CHECK_HEADERS([extractor.h],
 852           AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
 853             EXT_LIB_PATH="-L$with_extractor/lib $EXT_LIB_PATH"
 854             extractor=1))
 855       ])
 856    ],
 857    [AC_MSG_RESULT([--with-extractor not specified])
 858     AC_CHECK_HEADERS([extractor.h],
 859      AC_CHECK_LIB([extractor], [EXTRACTOR_plugin_add_defaults],
 860       extractor=1))])
 861 # restore LIBS
 862 LIBS=$SAVE_LIBS
 863
 864 AS_IF([test "$extractor" != 1],
 865  [
 866  AM_CONDITIONAL(HAVE_LIBEXTRACTOR, false)
 867  AC_DEFINE([HAVE_LIBEXTRACTOR],[0],[Lacking libextractor])
 868  ],[
 869  AM_CONDITIONAL(HAVE_LIBEXTRACTOR, true)
 870  AC_DEFINE([HAVE_LIBEXTRACTOR],[1],[Have libextractor])
 871  ])
 872
 873
 874 AS_IF([test "$taler_only" != yes],[
 875
 876
 877 # Check for libltdl header (#2999)
 878 ltdl=0
 879 AC_MSG_CHECKING(for libltdl)
 880 AC_ARG_WITH(ltdl,
 881    [AS_HELP_STRING([--with-ltdl=PREFIX],[base of libltdl installation])],
 882    [AC_MSG_RESULT([$with_ltdl])
 883     AS_CASE([$with_ltdl],
 884       [no],[],
 885       [yes],[
 886         AC_CHECK_HEADERS(ltdl.h,
 887           AC_CHECK_LIB([ltdl], [lt_dlopenext],
 888             ltdl=1))
 889       ],[
 890         LDFLAGS="-L$with_ltdl/lib $LDFLAGS"
 891         CPPFLAGS="-I$with_ltdl/include $CPPFLAGS"
 892         AC_CHECK_HEADERS(ltdl.h,
 893           AC_CHECK_LIB([ltdl], [lt_dlopenext],
 894             EXT_LIB_PATH="-L$with_ltdl/lib $EXT_LIB_PATH"
 895             ltdl=1))
 896       ])
 897    ],
 898    [AC_MSG_RESULT([--with-ltdl not specified])
 899     AC_CHECK_HEADERS(ltdl.h,
 900      AC_CHECK_LIB([ltdl], [lt_dlopenext],
 901       ltdl=1))])
 902 AS_IF([test x$ltdl = x1],
 903 [
 904  AC_MSG_RESULT([libltdl found])
 905 ],[
 906  AC_MSG_ERROR([GNUnet requires libltdl (from GNU libtool), try installing libltdl-dev])
 907 ])
 908 # restore LIBS
 909 LIBS=$SAVE_LIBS
 910
 911 # libidn and libidn2. The ideal goal is this:
 912 # check for libidn2, if it doesn't exist check for libidn
 913 # if both exist, prefer libidn2
 914 # if none exist, fail and message that libidn or libidn2
 915 # is required with a preference for libidn2.
 916 # TODO: What we have right here can probably be improved.
 917 my_with_libidn=1
 918 AC_ARG_WITH(libidn,
 919             AS_HELP_STRING([--with-libidn=pathname],
 920                            [Support IDN (needs libidn)]),
 921             [],
 922             [withval="yes"])
 923 AS_IF([test x_$withval = x_yes],
 924       [AC_CHECK_HEADERS([idna.h],
 925           AC_MSG_NOTICE([Found idna.h]),
 926           AC_CHECK_HEADERS([idn/idna.h],
 927                AC_MSG_NOTICE([Found idn/idna.h]),
 928                my_with_libidn=0))],
 929       [AS_IF([test x_$withval != x_no],
 930              [CFLAGS="$CFLAGS -I$withval/include"
 931               LDFLAGS="$LDFLAGS -L$withval/lib"
 932               AC_CHECK_HEADERS([idna.h],
 933                 AC_MSG_NOTICE([Found idna.h]),
 934                 [AC_MSG_NOTICE([Failed to find idna.h])
 935                  my_with_libidn=0])],
 936              [my_with_libidn=0])])
 937
 938 my_with_libidn2=1
 939 AC_ARG_WITH(libidn2,
 940             AS_HELP_STRING([--with-libidn2=pathname],
 941                            [Support IDN (needs libidn2)]),
 942             [],
 943             [withval="yes"])
 944 AS_IF([test x_$withval = x_yes],
 945       [AC_CHECK_HEADERS([idn2.h],
 946        AC_MSG_NOTICE([Found idn2.h]),
 947        AC_CHECK_HEADERS([idn2/idn2.h],
 948           AC_MSG_NOTICE([Found idn2/idn2.h]),
 949           [AC_MSG_NOTICE([Failed to find idn2.h])
 950            my_with_libidn2=0]))],
 951       [AS_IF([test x_$withval != x_no],
 952              [CFLAGS="$CFLAGS -I$withval/include"
 953               LDFLAGS="$LDFLAGS -L$withval/lib"],
 954              [my_with_libidn2=0])])
 955
 956 AC_MSG_CHECKING([if libidn can be used])
 957 # Check for LIBIDNs
 958 there_can_only_be_one=1
 959
 960 working_libidn1=0
 961 working_libidn2=0
 962 AS_IF([test x$my_with_libidn2 = x1],
 963       [AC_MSG_NOTICE([Checking for libidn2])
 964        AC_CHECK_LIB([idn2],
 965                     [idn2_to_unicode_8z8z],
 966                     [working_libidn2=1
 967                     LIBS="-lidn2 $LIBS"
 968                     AC_DEFINE_UNQUOTED([HAVE_LIBIDN2],
 969                                        [1],
 970                                        [Define to 1 if you have 'libidn2' (-lidn2).])],
 971                     [MISSING_DEPS="${MISSING_DEPS}${MISSING_SEP}libidn2"
 972                      MISSING_SEP=", "])])
 973 AM_CONDITIONAL(HAVE_LIBIDN2,
 974                test x$working_libidn2 = x1)
 975 AS_IF([test x$working_libidn2 = x0],
 976       [AS_IF([test x$my_with_libidn = x1],
 977              [AC_MSG_NOTICE([Checking for libidn])
 978               AC_CHECK_LIB([idn],
 979                            [idna_to_ascii_8z],
 980                            [working_libidn1=1
 981                            LIBS="-lidn $LIBS"
 982                            AC_DEFINE_UNQUOTED([HAVE_LIBIDN],
 983                                               [1],
 984                                               [Define to 1 if you have 'libidn' (-lidn).])],
 985                            [there_can_only_be_one=0])],
 986              [AS_IF([test x$my_with_libidn2 = x1],
 987                     [there_can_only_be_one=0
 988                      AC_MSG_FAILURE([* There can only be one libidn.
 989                                      * Provide either libidn >= 1.13
 990                                      * or
 991                                      * libidn2 to the configure
 992                                      * script via
 993                                      * --with-libidn2
 994                                      * --with-libidn])])])])
 995 AM_CONDITIONAL(HAVE_LIBIDN, test x$working_libidn1 = x1)
 996
 997 AS_IF([test "$working_libidn1" = 0 -a "$working_libidn2" = 0],
 998       [AC_MSG_ERROR([GNUnet requires libidn (or libidn2)])])
 999
1000 AS_IF([test x$there_can_only_be_one = x0],
1001       [AC_MSG_FAILURE([Missing dependencies: $MISSING_DEPS])])
1002
1003 # test for zlib
1004 SAVE_LDFLAGS=$LDFLAGS
1005 SAVE_CPPFLAGS=$CPPFLAGS
1006 AC_ARG_WITH(zlib,
1007             [  --with-zlib[[=DIR]]       use libz in DIR],
1008             [AS_IF([test "$withval" = "no"],
1009                    [AC_MSG_ERROR([GNUnet requires zlib])],
1010                    [test "$withval" != "yes"],
1011                    [Z_DIR=$withval
1012                     CPPFLAGS="${CPPFLAGS} -I$withval/include"
1013                     LDFLAGS="${LDFLAGS} -L$withval/lib"])])
1014 AC_CHECK_HEADER(zlib.h,
1015                 [],
1016                 [AC_MSG_ERROR([GNUnet requires zlib])])
1017 AC_CHECK_LIB(z,
1018              compress2,
1019              [AC_DEFINE([HAVE_ZLIB],
1020                         [],
1021                         [Have compression library])
1022               if test "x${Z_DIR}" != "x"; then
1023                       Z_CFLAGS="-I${Z_DIR}/include"
1024                       Z_LIBS="-L${Z_DIR}/lib -lz"
1025               else
1026                       Z_LIBS="-lz"
1027               fi],
1028               [AC_MSG_ERROR([GNUnet requires zlib])])
1029 AC_SUBST(Z_CFLAGS)
1030 AC_SUBST(Z_LIBS)
1031
1032 AS_IF([test "$enable_shared" = "no"],
1033       [AC_MSG_ERROR([GNUnet only works with shared libraries. Sorry.])])
1034
1035
1036 # restore LIBS
1037 LIBS=$SAVE_LIBS
1038
1039
1040 # end of taler-only being false
1041 ])
1042
1043
1044 # check for iconv
1045 AM_ICONV
1046
1047 # test for libunistring
1048 gl_LIBUNISTRING
1049 AS_IF([test $HAVE_LIBUNISTRING != yes],
1050       [AC_MSG_ERROR([GNUnet requires libunistring])])
1051
1052 # under emscripten, $gl_libunistring_hexversion is undefined
1053 if test "$taler_only" != yes; then
1054
1055 AS_IF([test "x$gl_libunistring_hexversion" = "x" || test "$gl_libunistring_hexversion" -le 2305],
1056       [AC_MSG_ERROR([GNUnet requires libunistring >= 0.9.1.1])])
1057 fi
1058 AC_CHECK_HEADERS([unistr.h],
1059                  ,
1060                  AC_MSG_ERROR([Compiling GNUnet requires unistr.h (from libunistring) to be installed]))
1061
1062 # restore LIBS
1063 LIBS=$SAVE_LIBS
1064
1065
1066
1067 # Checks for standard header files.
1068 AC_HEADER_DIRENT
1069 AC_HEADER_STDC
1070
1071 # Check for headers that are ALWAYS required
1072 AC_CHECK_HEADERS([fcntl.h math.h errno.h ctype.h limits.h stdio.h stdlib.h string.h unistd.h stdarg.h signal.h locale.h sys/stat.h sys/types.h],,AC_MSG_ERROR([Compiling GNUnet requires standard UNIX headers files: fcntl.h math.h errno.h ctype.h limits.h stdio.h stdlib.h string.h unistd.h stdarg.h signal.h locale.h sys/stat.h sys/types.h]))
1073
1074
1075
1076 # Checks for headers that are only required on some systems or
1077 # opional (and where we do NOT abort if they are not there)
1078 AC_CHECK_HEADERS([stdatomic.h malloc.h malloc/malloc.h malloc/malloc_np.h langinfo.h sys/param.h sys/mount.h sys/statvfs.h sys/select.h sockLib.h sys/mman.h sys/msg.h sys/vfs.h arpa/inet.h fcntl.h libintl.h netdb.h netinet/in.h sys/ioctl.h sys/socket.h sys/time.h unistd.h kstat.h sys/sysinfo.h kvm.h sys/file.h sys/resource.h ifaddrs.h mach/mach.h stddef.h sys/timeb.h argz.h ucred.h sys/ucred.h endian.h sys/endian.h execinfo.h byteswap.h])
1079
1080 # FreeBSD requires this for netinet/in_systm.h and netinet/ip.h
1081 AC_CHECK_HEADERS([sys/types.h netinet/in_systm.h netinet/in.h netinet/ip.h],,,
1082 [#ifdef HAVE_SYS_TYPES_H
1083 #include <sys/types.h>
1084 #endif
1085 #ifdef HAVE_NETINET_IN_SYSTM_H
1086 #include <netinet/in_systm.h>
1087 #endif
1088 #ifdef HAVE_NETINET_IN_H
1089 #include <netinet/in.h>
1090 #endif
1091 ])
1092
1093 SAVE_LDFLAGS=$LDFLAGS
1094 SAVE_CPPFLAGS=$CPPFLAGS
1095
1096 # test for sqlite
1097 sqlite=false
1098 AC_MSG_CHECKING(for SQLite)
1099 AC_ARG_WITH(sqlite,
1100   [  --with-sqlite=PFX       base of SQLite installation],
1101   [AC_MSG_RESULT("$with_sqlite")
1102    AS_CASE([$with_sqlite],
1103      [no],[],
1104      [yes],[
1105       AC_CHECK_HEADERS(sqlite3.h,
1106       sqlite=true)],
1107      [
1108     LDFLAGS="-L$with_sqlite/lib $LDFLAGS"
1109     CPPFLAGS="-I$with_sqlite/include $CPPFLAGS"
1110     AC_CHECK_HEADERS(sqlite3.h,
1111      EXT_LIB_PATH="-L$with_sqlite/lib $EXT_LIB_PATH"
1112      SQLITE_LDFLAGS="-L$with_sqlite/lib"
1113      SQLITE_CPPFLAGS="-I$with_sqlite/include"
1114      sqlite=true)
1115     LDFLAGS=$SAVE_LDFLAGS
1116     CPPFLAGS=$SAVE_CPPFLAGS
1117     ])
1118   ],
1119   [AC_MSG_RESULT([--with-sqlite not specified])
1120     AC_CHECK_HEADERS(sqlite3.h, sqlite=true)])
1121 AM_CONDITIONAL(HAVE_SQLITE, test x$sqlite = xtrue)
1122 AC_SUBST(SQLITE_CPPFLAGS)
1123 AC_SUBST(SQLITE_LDFLAGS)
1124
1125 LDFLAGS=$SAVE_LDFLAGS
1126 CPPFLAGS=$SAVE_CPPFLAGS
1127
1128 # test for postgres
1129 postgres=false
1130 # even running the check for postgres breaks emscripten ...
1131 AS_IF([test "$taler_only" != yes],
1132       [AX_LIB_POSTGRESQL([9.5],
1133         [CPPFLAGS="$CPPFLAGS $POSTGRESQL_CPPFLAGS"
1134          AC_CHECK_HEADERS([libpq-fe.h],
1135          postgres=true)
1136         ],
1137         [AC_MSG_RESULT([no postgres])])])
1138 AM_CONDITIONAL(HAVE_POSTGRESQL, test x$postgres = xtrue)
1139
1140
1141 LDFLAGS=$SAVE_LDFLAGS
1142 CPPFLAGS=$SAVE_CPPFLAGS
1143
1144 # mysql & windows
1145 AC_CHECK_TYPES([sigset_t, off_t], [], [], [#include <sys/types.h>])
1146 AC_CHECK_TYPES([size_t], [], [], [#include <stdio.h>])
1147
1148 # test for mysql
1149 mysql=false
1150 mysqlfail=false
1151 SAVE_LDFLAGS=$LDFLAGS
1152 SAVE_CPPFLAGS=$CPPFLAGS
1153 AC_MSG_CHECKING(for mysql)
1154 AC_ARG_WITH(mysql,
1155   [  --with-mysql=PFX        base of MySQL installation],
1156   [AC_MSG_RESULT([$with_mysql])
1157    AS_CASE([$with_mysql],
1158      [no],[],
1159      [yes|""],[
1160       AC_CHECK_HEADERS(mysql/mysql.h,
1161        AC_CHECK_LIB(mysqlclient, mysql_init,
1162        mysql=true), [], [])
1163      ],[
1164       LDFLAGS="-L$with_mysql/lib -L$with_mysql/lib/mysql $LDFLAGS $ZLIBS"
1165       CPPFLAGS="-I$with_mysql/include $CPPFLAGS"
1166       AC_CHECK_HEADERS(mysql/mysql.h,
1167        AC_CHECK_LIB(mysqlclient, mysql_init,
1168         MYSQL_LDFLAGS="-L$with_mysql/lib -L$with_mysql/lib/mysql"
1169         MYSQL_CPPFLAGS="-I$with_mysql/include"
1170
1171         mysql=true), [], [])
1172      ])
1173   ],
1174   [AC_MSG_RESULT([--with-mysql not specified])
1175    if test -d "/usr/lib64/mysql"; then
1176     MYSQL_LIBDIR="/usr/lib64/mysql"
1177    elif test -d "/usr/lib/mysql"; then
1178     MYSQL_LIBDIR="/usr/lib/mysql"
1179    else
1180     MYSQL_LIBDIR="/usr/lib"
1181    fi
1182    LDFLAGS="-L$MYSQL_LIBDIR $LDFLAGS $ZLIBS"
1183    AC_CHECK_LIB(mysqlclient, mysql_init,
1184     [AC_CHECK_HEADERS(mysql/mysql.h,
1185       MYSQL_LDFLAGS="-L$MYSQL_LIBDIR"
1186       mysql=true
1187
1188      , [], [])])
1189   ])
1190
1191 AC_SUBST(MYSQL_LDFLAGS)
1192 AC_SUBST(MYSQL_CPPFLAGS)
1193
1194 # additional version check for mysql
1195 AC_ARG_ENABLE(mysql-version-check, [  --disable-mysql-version-check  do not check MySQL version],, enable_mysql_version_check=yes)
1196 AS_IF([test "$mysql" = "true" -a "x$enable_mysql_version_check" = "xyes"],
1197  [
1198   AC_MSG_CHECKING(mysql version)
1199   AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1200     [[
1201       #include <mysql/mysql.h>]],
1202     [[
1203       #if (MYSQL_VERSION_ID < 40100)
1204       #error needs at least version >= 4.1
1205       #endif
1206       int main () { return 0; }
1207     ]])
1208     ],mysql=true,mysql=false)
1209   AS_IF([test "$mysql" = "false"],
1210    [
1211     mysqlfail=true
1212     AC_MSG_RESULT([fail, >= 4.1 required])
1213    ],[
1214     AC_MSG_RESULT(ok)
1215    ])
1216 ])
1217 AM_CONDITIONAL(HAVE_MYSQL, test x$mysql = xtrue)
1218 AM_CONDITIONAL(HAVE_MYSQLE, false)
1219 # restore LIBS
1220 LIBS=$SAVE_LIBS
1221 LDFLAGS=$SAVE_LDFLAGS
1222 CPPFLAGS=$SAVE_CPPFLAGS
1223
1224 AS_IF([test "$sqlite" = 0 -a "$mysql" = 0],
1225 [
1226  AC_MSG_ERROR([GNUnet requires SQLite or MySQL])
1227 ])
1228
1229 # libmicrohttpd
1230 lmhd=0
1231 m4_define([MHD_MODULE], [libmicrohttpd >= 0.9.63])
1232 AC_ARG_WITH(microhttpd,
1233    [AS_HELP_STRING([--with-microhttpd[[=PFX]]],
1234        [base of libmicrohttpd installation])],
1235    [],
1236    [with_microhttpd=check])
1237 AS_CASE([$with_microhttpd],
1238    [no], [],
1239    [yes], [PKG_CHECK_MODULES([MHD], [MHD_MODULE], [lmhd=1])],
1240    [check], [PKG_CHECK_MODULES([MHD], [MHD_MODULE],
1241        [lmhd=1],
1242        [AC_MSG_WARN([Building without libmicrohttpd])])],
1243    [SAVE_PKG_CONFIG_PATH=$PKG_CONFIG_PATH
1244     PKG_CONFIG_PATH=$with_microhttpd/lib/pkgconfig
1245     export PKG_CONFIG_PATH
1246     PKG_CHECK_MODULES([MHD], [MHD_MODULE], [lmhd=1])
1247     PKG_CONFIG_PATH=$SAVE_PKG_CONFIG_PATH])
1248 AM_CONDITIONAL(HAVE_MHD, test x$lmhd = x1)
1249 AC_DEFINE_UNQUOTED([HAVE_MHD], $lmhd, [We have libmicrohttpd])
1250
1251 AM_CONDITIONAL(HAVE_JSON, [test x$jansson = x1])
1252
1253 # restore LIBS
1254 LIBS=$SAVE_LIBS
1255
1256 # check for gettext
1257 AM_GNU_GETTEXT([external])
1258 AM_GNU_GETTEXT_VERSION([0.18.1])
1259
1260 # Checks for standard typedefs, structures, and compiler characteristics.
1261 AC_TYPE_PID_T
1262 AC_TYPE_SIZE_T
1263 AC_TYPE_MODE_T
1264 AC_HEADER_TIME
1265 AC_HEADER_STAT
1266 AC_HEADER_STDBOOL
1267 AC_STRUCT_TM
1268
1269 AC_CHECK_MEMBER([struct sockaddr_in.sin_len],
1270    [ AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [Do we have sockaddr_in.sin_len?])
1271    ],
1272    [],
1273    [
1274       #include <sys/types.h>
1275       #include <sys/socket.h>
1276       #include <netinet/in.h>
1277    ])
1278
1279 AC_CHECK_MEMBER([struct sockaddr_un.sun_len],
1280                 [ AC_DEFINE(HAVE_SOCKADDR_UN_SUN_LEN,
1281                             1,
1282                             [Do we have sockaddr_un.sun_len?])],
1283                 [],
1284                 [
1285                 #include <sys/types.h>
1286                 #include <sys/socket.h>
1287                 #include <sys/un.h>
1288                 ])
1289
1290
1291
1292 # Checks for library functions.
1293 AC_FUNC_CLOSEDIR_VOID
1294 AC_FUNC_FORK
1295 AC_PROG_GCC_TRADITIONAL
1296 AC_FUNC_MEMCMP
1297 AC_FUNC_SELECT_ARGTYPES
1298 AC_FUNC_CHOWN
1299
1300 AC_TYPE_SIGNAL
1301 AC_FUNC_STAT
1302 AC_FUNC_STRFTIME
1303 AC_FUNC_VPRINTF
1304 AC_HEADER_SYS_WAIT
1305 AC_TYPE_OFF_T
1306 AC_TYPE_UID_T
1307 AC_CHECK_FUNCS([atoll stat64 strnlen mremap getrlimit setrlimit sysconf initgroups strndup gethostbyname2 getpeerucred getpeereid setresuid $funcstocheck getifaddrs freeifaddrs getresgid mallinfo malloc_size malloc_usable_size getrusage random srandom stat statfs statvfs wait4])
1308
1309 # restore LIBS
1310 LIBS=$SAVE_LIBS
1311
1312 GN_INTLINCL=""
1313 GN_LIBINTL="$LTLIBINTL"
1314 AC_ARG_ENABLE(framework,
1315               [AS_HELP_STRING([--enable-framework],[enable Mac OS X framework build helpers])],
1316               enable_framework_build=$enableval)
1317 AM_CONDITIONAL(WANT_FRAMEWORK,
1318                test x$enable_framework_build = xyes)
1319 AS_IF([test x$enable_framework_build = xyes],
1320       [AC_DEFINE([FRAMEWORK_BUILD],
1321                  1,
1322                  [Build a Mac OS X Framework])
1323       GN_INTLINCL='-I$(top_srcdir)/src/intlemu'
1324       GN_LIBINTL='$(top_builddir)/src/intlemu/libintlemu.la -framework CoreFoundation'
1325       AC_LIB_APPENDTOVAR([CPPFLAGS],
1326                          [$GN_INTLINCL])])
1327
1328 GN_LIB_LDFLAGS="-export-dynamic -no-undefined"
1329 GN_PLUGIN_LDFLAGS="-export-dynamic -avoid-version -module -no-undefined"
1330
1331 AC_SUBST(GN_LIB_LDFLAGS)
1332 AC_SUBST(GN_PLUGIN_LDFLAGS)
1333 AC_SUBST(GN_INTLINCL)
1334 AC_SUBST(GN_LIBINTL)
1335
1336 AC_SUBST(CPPFLAGS)
1337 AC_SUBST(LIBS)
1338 AC_SUBST(LDFLAGS)
1339 AC_SUBST(EXT_LIB_PATH)
1340 AC_SUBST(EXT_LIBS)
1341
1342 AC_SUBST(LIBPREFIX)
1343 AC_SUBST(DLLDIR)
1344 AC_SUBST(EXT_LIB_PATH)
1345
1346 DATAROOTDIR=$datarootdir
1347 AC_SUBST(DATAROOTDIR)
1348
1349 # test for sudo
1350 # TODO: do we need to change anything for "doas" on openbsd?
1351 AC_MSG_CHECKING(for sudo)
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
1365 # test for gnunetdns group name
1366 GNUNETDNS_GROUP=gnunetdns
1367 AC_MSG_CHECKING(for gnunetdns group name)
1368 AC_ARG_WITH(gnunetdns,
1369             [  --with-gnunetdns=GRPNAME       name for gnunetdns group],
1370             [AC_MSG_RESULT("$with_gnunetdns")
1371              AS_CASE([$with_gnunetdns],
1372                      [no],[GNUNETDNS_GROUP=gnunet],
1373                      [yes],[GNUNETDNS_GROUP=gnunetdns],
1374                      [GNUNETDNS_GROUP=$with_gnunetdns])],
1375             [AC_MSG_RESULT([gnunetdns])])
1376 AC_SUBST(GNUNETDNS_GROUP)
1377
1378
1379
1380 # gnutls
1381 gnutls=0
1382 gnutls_dane=0
1383 AC_MSG_CHECKING(for gnutls)
1384 AC_ARG_WITH(gnutls,
1385             [  --with-gnutls=PFX   base of gnutls installation],
1386             [AC_MSG_RESULT([$with_gnutls])
1387              AS_CASE([$with_gnutls],
1388                      [no],[],
1389                      [yes],
1390                      [AC_CHECK_HEADERS([gnutls/abstract.h],
1391                                        AC_CHECK_LIB([gnutls],
1392                                                     [gnutls_priority_set],
1393                                                     gnutls=true))
1394                       AC_CHECK_HEADERS([gnutls/dane.h],
1395                                        AC_CHECK_LIB([gnutls-dane],
1396                                                     [dane_verify_crt_raw],
1397                                                     gnutls_dane=1))],
1398
1399         [LDFLAGS="-L$with_gnutls/lib $LDFLAGS"
1400         CPPFLAGS="-I$with_gnutls/include $CPPFLAGS"
1401         AC_CHECK_HEADERS([gnutls/abstract.h],
1402             AC_CHECK_LIB([gnutls], [gnutls_priority_set],
1403               EXT_LIB_PATH="-L$with_gnutls/lib $EXT_LIB_PATH"
1404               gnutls=true))
1405         AC_CHECK_HEADERS([gnutls/dane.h],
1406             AC_CHECK_LIB([gnutls-dane], [dane_verify_crt_raw],
1407               gnutls_dane=1))
1408       ])
1409    ],
1410    [AC_MSG_RESULT([--with-gnutls not specified])
1411     AC_CHECK_HEADERS([gnutls/abstract.h],
1412         AC_CHECK_LIB([gnutls], [gnutls_priority_set],
1413           gnutls=true))
1414     AC_CHECK_HEADERS([gnutls/dane.h],
1415         AC_CHECK_LIB([gnutls-dane], [dane_verify_crt_raw],
1416                      gnutls_dane=1))
1417    ])
1418 AM_CONDITIONAL(HAVE_GNUTLS, test x$gnutls = xtrue)
1419 AC_DEFINE_UNQUOTED([HAVE_GNUTLS], $gnutls, [We have GnuTLS])
1420 AM_CONDITIONAL(HAVE_GNUTLS_DANE, test x$gnutls_dane = x1)
1421 AC_DEFINE_UNQUOTED([HAVE_GNUTLS_DANE], $gnutls_dane, [We have GnuTLS with DANE support])
1422
1423
1424
1425 # Test if we are building for superMUC
1426 AC_MSG_CHECKING(if GNUnet is being configured to run on the SuperMUC)
1427 AC_ARG_ENABLE([supermuc],
1428     [AS_HELP_STRING([--enable-supermuc],
1429        [build GNUnet with support to run on the SuperMUC (default is NO)])],
1430     [AS_IF([test "x$enable_supermuc" = "xno"],
1431       [supermuc=0],
1432       [supermuc=1])],
1433     [supermuc=0
1434      enable_supermuc=no])
1435 AC_MSG_RESULT($enable_SUPERMUC)
1436 AM_CONDITIONAL([ENABLE_SUPERMUC], [test "x$supermuc" = "x1"])
1437 AC_DEFINE_UNQUOTED([ENABLE_SUPERMUC], [$supermuc], [Build with support for SuperMUC])
1438
1439 # Check if NSE has to send timestamp information to testbed logger for
1440 # generating histogram of messages received
1441 AC_MSG_CHECKING(if NSE has to send timestamp information to testbed logger)
1442 AC_ARG_ENABLE([nse-histogram],
1443     [AS_HELP_STRING([--enable-nse-histogram],
1444        [have NSE send timestamp information to testbed logger for generating
1445        histogram of received messages.  NOT useful for production (default is
1446        NO)])],
1447     [AS_IF([test "x$enableval" = "xno"],
1448       [nse_histogram=0],
1449       [nse_histogram=1])],
1450     [nse_histogram=0
1451      enable_nse_histogram=no])
1452 AC_MSG_RESULT($enable_nse_histogram)
1453 AM_CONDITIONAL([ENABLE_NSE_HISTOGRAM], [test "x$nse_histogram" = "x1"])
1454 AC_DEFINE_UNQUOTED([ENABLE_NSE_HISTOGRAM], [$nse_histogram],
1455                    [have NSE send timestamp information to testbed logger])
1456
1457 # should 'make check' run tests?
1458 AC_MSG_CHECKING(whether to run tests)
1459 AC_ARG_ENABLE([testruns],
1460    [AS_HELP_STRING([--disable-testruns], [disable running tests on make check (default is YES)])],
1461    [enable_tests_run=${enableval}],
1462    [enable_tests_run=yes])
1463 AC_MSG_RESULT($enable_test_run)
1464 AM_CONDITIONAL([ENABLE_TEST_RUN], [test "x$enable_tests_run" = "xyes"])
1465
1466
1467 AC_MSG_CHECKING([whether to compile in benchmarks (currently for http and crypto)])
1468 AC_ARG_ENABLE([benchmark],
1469    [AS_HELP_STRING([--enable-benchmark], [enable benchmarking])],
1470    [enable_benchmark=${enableval}],
1471    [enable_benchmark=no])
1472 AC_MSG_RESULT($enable_benchmark)
1473 AS_IF([test "x$enable_benchmark" = "xyes"],
1474       [AC_DEFINE_UNQUOTED(ENABLE_BENCHMARK,1,[Benchmarks are enabled])])
1475 AM_CONDITIONAL([ENABLE_BENCHMARK], [test "x$enable_benchmark" = "xyes"])
1476
1477
1478 # should expensive tests be run?
1479 AC_MSG_CHECKING(whether to run expensive tests)
1480 AC_ARG_ENABLE([expensivetests],
1481    [AS_HELP_STRING([--enable-expensivetests], [enable running expensive testcases])],
1482    [enable_expensive=${enableval}],
1483    [enable_expensive=no])
1484 AC_MSG_RESULT($enable_expensive)
1485 AM_CONDITIONAL([HAVE_EXPENSIVE_TESTS], [test "x$enable_expensive" = "xyes"])
1486
1487 # should ports be open for Java services?
1488 AC_MSG_CHECKING(whether to enable ports for gnunet-java)
1489 AC_ARG_ENABLE([javaports],
1490    [AS_HELP_STRING([--enable-javaports], [use non-zero ports for services with Java bindings (default is NO)])],
1491    [enable_java_ports=${enableval}],
1492    [enable_java_ports=no])
1493 AC_MSG_RESULT($enable_java_ports)
1494 AS_IF([test "x$enable_java_ports" = "xyes"],
1495  [JAVAPORT=""],
1496  [JAVAPORT="$UNIXONLY"])
1497 AC_SUBST(JAVAPORT)
1498
1499 # should benchmarks be run?
1500 AC_MSG_CHECKING(whether to run benchmarks during make check)
1501 AC_ARG_ENABLE([benchmarks],
1502    [AS_HELP_STRING([--enable-benchmarks], [enable running benchmarks during make check])],
1503    [enable_benchmarks=${enableval}],
1504    [enable_benchmarks=no])
1505 AC_MSG_RESULT($enable_benchmarks)
1506 AM_CONDITIONAL([HAVE_BENCHMARKS], [test "x$enable_benchmarks" = "xyes"])
1507
1508 # should gnunet-testing be compiled
1509 AC_MSG_CHECKING(wether to compile gnunet-testing)
1510 AC_ARG_ENABLE([testing],
1511    [AS_HELP_STRING([--disable-testing], [do not build gnunet-testing])],
1512    [enable_testing=${enableval}],
1513    [enable_testing=yes])
1514 AC_MSG_RESULT($enable_testing)
1515 AM_CONDITIONAL([HAVE_TESTING], [test "x$enable_testing" = "xyes"])
1516
1517 # should experimental code be compiled (code that may not yet compile)?
1518 AC_MSG_CHECKING(whether to compile experimental code)
1519 AC_ARG_ENABLE([experimental],
1520    [AS_HELP_STRING([--enable-experimental], [enable compiling experimental code])],
1521    [enable_experimental=${enableval}],
1522    [enable_experimental=no])
1523 AC_MSG_RESULT($enable_experimental)
1524 AM_CONDITIONAL([HAVE_EXPERIMENTAL], [test "x$enable_experimental" = "xyes"])
1525
1526 # should malicious code be compiled (should only be used for testing)?
1527 AC_MSG_CHECKING(whether to compile malicious code)
1528 AC_ARG_ENABLE([malicious],
1529    [AS_HELP_STRING([--enable-malicious], [enable compiling malicious code])],
1530    [AS_IF([test "x$enableval" = "xno"],
1531      [malicious=0],
1532      [malicious=1])],
1533    [malicious=0
1534     enable_malicious=no])
1535 AC_MSG_RESULT($enable_malicious)
1536 AM_CONDITIONAL([ENABLE_MALICIOUS], [test 1=$malicious])
1537 AC_DEFINE_UNQUOTED([ENABLE_MALICIOUS], [$malicious],
1538                    [enable compilation of malicious code])
1539
1540 # should services be started on demand when needed?
1541 # Some services may choose to never start by default
1542 # and it is up to the service/module developer to decide
1543 # by having "START_ON_DEMAND = NO" instead of
1544 # "START_ON_DEMAND = @START_ON_DEMAND@"
1545 # in the service/module's conf.in file.
1546 # See also IMMEDIATE_START for an unconditional immediate start.
1547 START_ON_DEMAND="YES"
1548 AC_MSG_CHECKING(whether to start peer's services on demand by default)
1549 AC_ARG_ENABLE([autostart],
1550    [AS_HELP_STRING([--disable-autostart], [do not start peer's services by default])],
1551    [enable_autostart=${enableval}
1552     AS_IF([test "x$enable_autostart" = "xno"],
1553       [START_ON_DEMAND="NO"])
1554    ],
1555    [enable_autostart=yes])
1556 AC_MSG_RESULT($enable_autostart)
1557 #AM_CONDITIONAL([HAVE_START_ON_DEMAND], [test "x$enable_autostart" = "xyes"])
1558 AC_SUBST(START_ON_DEMAND)
1559
1560 # should memory statistics be kept (very expensive CPU-wise!)
1561 AC_MSG_CHECKING(whether to create expensive statistics on memory use)
1562 AC_ARG_ENABLE([heapstats],
1563    [AS_HELP_STRING([--enable-heapstats], [enable expensive heap statistics])],
1564    [enable_heapstats=1],
1565    [enable_heapstats=0])
1566 AC_MSG_RESULT($enable_heapstats)
1567 AC_DEFINE_UNQUOTED([ENABLE_HEAP_STATISTICS],$enable_heapstats,[enable expensive heap statistics])
1568
1569
1570 # Check if the __thread storage class for
1571 # thread-local storage is available.
1572 AC_MSG_CHECKING(whether __thread is supported)
1573 AC_LINK_IFELSE(
1574 [AC_LANG_PROGRAM([#include <stdlib.h>
1575                    #undef __thread
1576                    static __thread int a = 1;],
1577                   [exit(a-1);])],
1578  [have_thread_local_gcc=1],[have_thread_local_gcc=0])
1579 AC_DEFINE_UNQUOTED([HAVE_THREAD_LOCAL_GCC],$have_thread_local_gcc,[Define this if __thread is supported])
1580 AS_IF([test "x$have_thread_local_gcc" = "x1"],
1581       [AC_MSG_RESULT(yes)],
1582       [AC_MSG_RESULT(no)])
1583
1584 # gcov compilation
1585 AC_MSG_CHECKING(whether to compile with support for code coverage analysis)
1586 AC_ARG_ENABLE([coverage],
1587               AS_HELP_STRING([--enable-coverage],
1588                              [compile the library with code coverage support]),
1589               [use_gcov=${enableval}],
1590               [use_gcov=no])
1591 AC_MSG_RESULT($use_gcov)
1592 AM_CONDITIONAL([USE_COVERAGE], [test "x$use_gcov" = "xyes"])
1593
1594
1595 # version info
1596 # TODO: git blame says this predates our switch to git.
1597 # git-svn should be adjusted to simply git, or
1598 # an external script that does the job.
1599 AC_PATH_PROG(svnversioncommand, svnversion)
1600 AC_PATH_PROG(gitcommand, git)
1601 AC_MSG_CHECKING(for source being under a VCS)
1602
1603
1604 # version info
1605 AC_PATH_PROG(gitcommand, git)
1606 AC_MSG_CHECKING(for source being under a VCS)
1607 git_version=
1608 AS_IF([test ! "X$gitcommand" = "X"],
1609 [
1610   git_version=$(cd $srcdir ; git rev-list --full-history --all --abbrev-commit | head -n 1 2>/dev/null)
1611 ])
1612 AS_IF([test "X$git_version" = "X"],
1613   [
1614     vcs_name="no"
1615     vcs_version="\"release\""
1616   ],
1617   [
1618     vcs_name="yes, git-svn"
1619     vcs_version="\"git-$git_version\""
1620   ])
1621 AC_MSG_RESULT($vcs_name)
1622
1623 AC_MSG_CHECKING(VCS version)
1624 AC_MSG_RESULT($vcs_version)
1625 AC_DEFINE_UNQUOTED(VCS_VERSION, [$vcs_version], [VCS revision/hash or tarball version])
1626
1627 AC_CONFIG_FILES([
1628 Makefile
1629 contrib/Makefile
1630 contrib/hellos/Makefile
1631 contrib/services/Makefile
1632 contrib/services/openrc/Makefile
1633 contrib/services/systemd/Makefile
1634 contrib/scripts/Makefile
1635 contrib/scripts/gnunet-logread/Makefile
1636 doc/Makefile
1637 doc/man/Makefile
1638 doc/doxygen/Makefile
1639 doc/handbook/Makefile
1640 doc/tutorial/Makefile
1641 lint/Makefile
1642 m4/Makefile
1643 po/Makefile.in
1644 src/Makefile
1645 src/arm/Makefile
1646 src/arm/arm.conf
1647 src/ats/Makefile
1648 src/ats/ats.conf
1649 src/ats-tool/Makefile
1650 src/ats-tests/Makefile
1651 src/auction/Makefile
1652 src/block/Makefile
1653 src/cadet/Makefile
1654 src/cadet/cadet.conf
1655 src/core/Makefile
1656 src/core/core.conf
1657 src/consensus/Makefile
1658 src/consensus/consensus.conf
1659 src/conversation/Makefile
1660 src/conversation/conversation.conf
1661 src/curl/Makefile
1662 src/datacache/Makefile
1663 src/datastore/Makefile
1664 src/datastore/datastore.conf
1665 src/dht/Makefile
1666 src/dht/dht.conf
1667 src/dns/Makefile
1668 src/dns/dns.conf
1669 src/exit/Makefile
1670 src/fragmentation/Makefile
1671 src/fs/Makefile
1672 src/fs/fs.conf
1673 src/gns/Makefile
1674 src/gns/gns.conf
1675 src/gns/nss/Makefile
1676 src/gnsrecord/Makefile
1677 src/hello/Makefile
1678 src/identity/Makefile
1679 src/identity/identity.conf
1680 src/credential/Makefile
1681 src/credential/credential.conf
1682 src/include/Makefile
1683 src/integration-tests/Makefile
1684 src/json/Makefile
1685 src/hostlist/Makefile
1686 src/my/Makefile
1687 src/mysql/Makefile
1688 src/namecache/Makefile
1689 src/namecache/namecache.conf
1690 src/namestore/Makefile
1691 src/namestore/namestore.conf
1692 src/nat/Makefile
1693 src/nat/nat.conf
1694 src/nat-auto/Makefile
1695 src/nat-auto/nat-auto.conf
1696 src/nse/Makefile
1697 src/nse/nse.conf
1698 src/nt/Makefile
1699 src/peerinfo/Makefile
1700 src/peerinfo/peerinfo.conf
1701 src/peerinfo-tool/Makefile
1702 src/peerstore/Makefile
1703 src/peerstore/peerstore.conf
1704 src/pq/Makefile
1705 src/pt/Makefile
1706 src/regex/Makefile
1707 src/regex/regex.conf
1708 src/revocation/Makefile
1709 src/revocation/revocation.conf
1710 src/rps/Makefile
1711 src/rps/rps.conf
1712 src/secretsharing/Makefile
1713 src/secretsharing/secretsharing.conf
1714 src/scalarproduct/Makefile
1715 src/scalarproduct/scalarproduct.conf
1716 src/set/Makefile
1717 src/set/set.conf
1718 src/sq/Makefile
1719 src/statistics/Makefile
1720 src/statistics/statistics.conf
1721 src/template/Makefile
1722 src/testbed/Makefile
1723 src/testbed/testbed.conf
1724 src/testbed-logger/Makefile
1725 src/testbed-logger/testbed-logger.conf
1726 src/testing/Makefile
1727 src/topology/Makefile
1728 src/transport/Makefile
1729 src/transport/transport.conf
1730 src/util/Makefile
1731 src/util/resolver.conf
1732 src/vpn/Makefile
1733 src/vpn/vpn.conf
1734 src/zonemaster/Makefile
1735 src/zonemaster/zonemaster.conf
1736 src/rest/Makefile
1737 src/abe/Makefile
1738 src/reclaim-attribute/Makefile
1739 src/reclaim/Makefile
1740 pkgconfig/Makefile
1741 pkgconfig/gnunetarm.pc
1742 pkgconfig/gnunetats.pc
1743 pkgconfig/gnunetblock.pc
1744 pkgconfig/gnunetcadet.pc
1745 pkgconfig/gnunetconsensus.pc
1746 pkgconfig/gnunetconversation.pc
1747 pkgconfig/gnunetcore.pc
1748 pkgconfig/gnunetdatacache.pc
1749 pkgconfig/gnunetdatastore.pc
1750 pkgconfig/gnunetdht.pc
1751 pkgconfig/gnunetdns.pc
1752 pkgconfig/gnunetenv.pc
1753 pkgconfig/gnunetfragmentation.pc
1754 pkgconfig/gnunetfs.pc
1755 pkgconfig/gnunetgns.pc
1756 pkgconfig/gnunethello.pc
1757 pkgconfig/gnunetidentity.pc
1758 pkgconfig/gnunetmicrophone.pc
1759 pkgconfig/gnunetmysql.pc
1760 pkgconfig/gnunetnamestore.pc
1761 pkgconfig/gnunetnat.pc
1762 pkgconfig/gnunetnse.pc
1763 pkgconfig/gnunetpeerinfo.pc
1764 pkgconfig/gnunetpq.pc
1765 pkgconfig/gnunetregex.pc
1766 pkgconfig/gnunetrevocation.pc
1767 pkgconfig/gnunetrps.pc
1768 pkgconfig/gnunetscalarproduct.pc
1769 pkgconfig/gnunetset.pc
1770 pkgconfig/gnunetspeaker.pc
1771 pkgconfig/gnunetstatistics.pc
1772 pkgconfig/gnunettestbed.pc
1773 pkgconfig/gnunettesting.pc
1774 pkgconfig/gnunettransport.pc
1775 pkgconfig/gnunetutil.pc
1776 pkgconfig/gnunetvpn.pc
1777 ])
1778 AC_OUTPUT
1779
1780
1781 # FIXME: `some modules' -> be more specific which exact modules.
1782
1783 # java ports
1784 AS_IF([test "x$enable_java_ports" = "xyes"],
1785       [AC_MSG_NOTICE([NOTICE: Opening ports for gnunet-java bindings by default.])])
1786
1787 ####
1788 #### Lasciate ogne speranza, voi ch'intrate
1789 ####
1790 #### This could be moved to the checks above,
1791 #### but for now let's keep it here.
1792 ####
1793
1794 # -- print message regarding enabled experimental features
1795 AS_IF([test "x$enable_experimental" = "xyes"],
1796       [experimental_msg="experimental features enabled"])
1797 # -- OSX Framework
1798 AS_IF([test "$enable_framework_build" = "yes"],
1799       [macosx_framework_msg="yes"],
1800       [macosx_framework_msg="no"])
1801 # -- libidn 2
1802 AS_IF([test "x$working_libidn2" = x1],
1803       [libidn2_msg="libidn2"])
1804 # -- libidn 1
1805 AS_IF([test "x$working_libidn1" = x1],
1806       [libidn1_msg="libidn1"])
1807 # -- texi2mdoc
1808 AS_IF([test "x$texi2mdoc_generation" = x1],
1809       [mdoc_msg="yes"],
1810       [mdoc_msg="no"])
1811 # -- texinfo
1812 AS_IF([test "x$makeinfo" != "x1"],
1813       [texinfo_msg="no"],
1814       [texinfo_msg="yes"])
1815 # -- conversation
1816 AS_IF([test "x$conversation_backend" = "xnone"],
1817       [AS_IF([test "x$pulse" != "x1"],
1818              [AC_MSG_NOTICE([WARNING: libpulse(audio) not found, conversation will not be built.])
1819               libpulse_msg="no"],
1820              [libpulse_msg="yes"])
1821        AS_IF([test "x$opus" != "x1"],
1822              [AC_MSG_NOTICE([WARNING: libopus not found, conversation will not be built.])
1823               libopus_msg="no"],
1824              [libopus_msg="yes"])
1825        AS_IF([test "x$gst" != "x1"],
1826              [AC_MSG_NOTICE([WARNING: GStreamer not found, conversation will not be built.])
1827               gstreamer_msg="no"],
1828              [gstreamer_msg="yes"])],
1829       [features_msg="$features_msg conversation"])
1830 # -- interface
1831 interface_msg=`echo $DEFAULT_INTERFACE | tr -d \"`
1832 # -- libmicrohttpd
1833 AS_IF([test "x$lmhd" != "x1"],
1834       [libmicrohttpd_msg="no (optional)"],
1835       [libmicrohttpd_msg="yes"])
1836 # -- jansson
1837 AS_IF([test "x$jansson" = "x0"],
1838       [jansson_msg="no (optional)"],
1839       [jansson_msg="yes"])
1840 # -- libextractor
1841 AS_IF([test "$extractor" != 1],
1842       [AC_MSG_WARN([ERROR: libextractor not found, but various file-sharing functions require it])],
1843       [libextractor_msg="yes"])
1844 # -- libzbar
1845 AS_IF([test "x$zbar" = "x1"],
1846       [libzbar_msg="yes"
1847        features_msg="$features_msg gnunet-qr"],
1848       [AC_MSG_NOTICE([WARNING: zbar not found, gnunet-qr will not be built.])
1849        libzbar_msg="no"])
1850 # -- libgnurl
1851 AS_IF([test "$gnurl" = "0"],
1852       [AS_IF([test "x$curl" = "xfalse"],
1853              [AC_MSG_NOTICE([WARNING: libgnurl not found. http client support will not be compiled.])
1854               AC_MSG_WARN([ERROR: libgnurl not found. hostlist daemon will not be compiled, and you probably WANT the hostlist daemon])
1855               curl_msg="no"],
1856              [AC_MSG_NOTICE([WARNING: libgnurl not found, trying to use libcurl-gnutls instead.])
1857               curl_msg="yes"])],
1858        [gnurl_msg="yes"])
1859 # -- ifconfig
1860 AS_IF([test "$VAR_IFCONFIG_BINARY" = "false"],
1861       [AC_MSG_NOTICE([WARNING: optional ifconfig not found])
1862        ifconfig_msg="no (optional)"],
1863       [ifconfig_msg="yes"])
1864 # -- upnpc
1865 AS_IF([test "$VAR_UPNPC_BINARY" = "false"],
1866       [AC_MSG_NOTICE([WARNING: optional upnpc binary not found])
1867        upnpc_msg="no (optional)"],
1868       [upnpc_msg="yes"])
1869 # -- iptables
1870 AS_IF([test "$VAR_IPTABLES_BINARY" = "false"],
1871       [AC_MSG_NOTICE([WARNING: optional iptables not found])
1872        iptables_msg="no (optional)"],
1873       [iptables_msg="yes"])
1874 # -- bluetooth
1875 AS_IF([test "x$bluetooth" = "x0"],
1876       [AC_MSG_NOTICE([WARNING: optional bluetooth library not found.])
1877        bluetooth_msg="no (optional)"],
1878       [bluetooth_msg="yes"])
1879 # -- gnutls
1880 AS_IF([test x$gnutls != xtrue],
1881       [AC_MSG_NOTICE([WARNING: GnuTLS not found, gnunet-gns-proxy will not be built])
1882        gnutls_msg="no"],
1883       [AS_IF([test "x$gnutls_dane" != "x1"],
1884              [AC_MSG_NOTICE([WARNING: GnuTLS has no DANE support, DANE validation will not be possible])
1885               gnutls_msg="yes (without DANE support)"],
1886              [gnutls_msg="yes (with DANE support)"])])
1887 # -- databases
1888 AS_IF([test $mysqlfail = true]
1889       [AC_MSG_NOTICE([WARNING: optional MySQL not found (or too old)])])
1890 AS_IF([test "$mysql" = true],
1891       [features_msg="$features_msg mysql"
1892        mysql_msg="yes"],
1893       [mysql_msg="no"])
1894 AS_IF([test "$sqlite" = true],
1895       [features_msg="$features_msg sqlite"
1896        sqlite_msg="yes"],
1897       [AC_MSG_ERROR([ERROR: sqlite3 not found, but sqlite3 is required.])
1898        sqlite_msg="no"])
1899 AS_IF([test "$postgres" = true],
1900       [features_msg="$features_msg postgres"
1901        postgres_msg="yes"],
1902       [postgres_msg="no"])
1903 # -- features
1904 # ---- 1. replace spaces with newlines,
1905 # ---- 2. sort the lines,
1906 # ---- 3. replace the newlines with spaces.
1907 features_msg=`echo $features_msg | tr ' ' '\012' | sort | tr '\012' ' '`
1908 AC_SUBST(features_msg)
1909
1910
1911 # The summary
1912 # TODO: reduce the length of the last message block ("the message")
1913
1914 AC_MSG_NOTICE([
1915 GNUnet Configuration
1916
1917 gnunet version:                 ${VERSION}
1918
1919 Host setup:                     ${host}
1920 Install prefix:                 ${prefix}
1921 Compiler:                       ${CC}
1922 CFLAGS:                         ${CFLAGS}
1923 CPPFLAGS:                       ${CPPFLAGS}
1924 LDFLAGS:                        ${LDFLAGS}
1925 LIBS:                           ${LIBS}
1926 Build Target:                   $build_target
1927 Mac OSX framework build:        ${macosx_framework_msg}
1928
1929 Default Interface:              ${interface_msg}
1930
1931 MySQL:                          ${mysql_msg}
1932 PostgreSQL:                     ${postgres_msg}
1933 sqlite3:                        ${sqlite_msg}
1934 gnurl:                          ${gnurl_msg}
1935 curl:                           ${curl_msg}
1936 bluetooth:                      ${bluetooth_msg}
1937 jansson:                        ${jansson_msg}
1938 iptables:                       ${iptables_msg}
1939 ifconfig:                       ${ifconfig_msg}
1940 upnpc:                          ${upnpc_msg}
1941 gnutls:                         ${gnutls_msg}
1942 libzbar:                        ${libzbar_msg}
1943 java:                           ${java_msg}
1944 libmicrohttpd:                  ${libmicrohttpd_msg}
1945 libidn:                         ${libidn1_msg}${libidn2_msg}
1946 libopus:                        ${libopus_msg}
1947 gstreamer:                      ${gstreamer_msg}
1948 libpulse:                       ${libpulse_msg}
1949 libextractor:                   ${libextractor_msg}
1950
1951 texinfo manual:                 ${texinfo_msg}
1952 transpiled mdoc manual:         ${mdoc_msg}
1953
1954 features:                       ${features_msg}
1955 experimental:                   ${experimental_msg}
1956
1957
1958 IMPORTANT:
1959
1960 Please make sure NOW that you have created a user and group 'gnunet'
1961 and additionally a group 'gnunetdns'. On Debian and Ubuntu GNU/Linux,
1962 type:
1963
1964   addgroup gnunetdns
1965   adduser --system --group --disabled-login --home /var/lib/gnunet gnunet
1966
1967 Make sure that '/var/lib/gnunet' is owned (and writable) by user
1968 'gnunet'.  Then, you can compile GNUnet with
1969
1970   make
1971
1972 After that, run (if necessary as 'root')
1973
1974   make install
1975
1976 to install everything.
1977
1978 Each GNUnet user should be added to the 'gnunet' group (may
1979 require fresh login to come into effect):
1980
1981   adduser USERNAME gnunet
1982
1983 (run the above command as root once for each of your users, replacing
1984 "USERNAME" with the respective login names).  If you have a global IP
1985 address, no further configuration is required.
1986
1987 For more detailed setup instructions, see https://docs.gnunet.org/
1988
1989 Optionally, download and compile gnunet-gtk to get a GUI for
1990 file-sharing and configuration.  This is particularly recommended
1991 if your network setup is non-trivial, as gnunet-setup can be
1992 used to test in the GUI if your network configuration is working.
1993 gnunet-setup should be run as the "gnunet" user under X.  As it
1994 does very little with the network, running it as "root" is likely
1995 also harmless.  You can also run it as a normal user, but then
1996 you have to copy ~/.gnunet/gnunet.conf" over to the "gnunet" user's
1997 home directory in the end.
1998
1999 Once you have configured your peer, run (as the 'gnunet' user)
2000
2001   gnunet-arm -s
2002
2003 to start the peer.  You can then run the various GNUnet-tools as
2004 your "normal" user (who should only be in the group 'gnunet').
2005 ])