aclocal.m4

   1 # generated automatically by aclocal 1.16.3 -*- Autoconf -*-
   2
   3 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
   4
   5 # This file is free software; the Free Software Foundation
   6 # gives unlimited permission to copy and/or distribute it,
   7 # with or without modifications, as long as this notice is preserved.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  11 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  12 # PARTICULAR PURPOSE.
  13
  14 m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
  15 # ===============================================================================
  16 #  https://www.gnu.org/software/autoconf-archive/ax_c_float_words_bigendian.html
  17 # ===============================================================================
  18 #
  19 # SYNOPSIS
  20 #
  21 #   AX_C_FLOAT_WORDS_BIGENDIAN([ACTION-IF-TRUE], [ACTION-IF-FALSE], [ACTION-IF-UNKNOWN])
  22 #
  23 # DESCRIPTION
  24 #
  25 #   Checks the ordering of words within a multi-word float. This check is
  26 #   necessary because on some systems (e.g. certain ARM systems), the float
  27 #   word ordering can be different from the byte ordering. In a multi-word
  28 #   float context, "big-endian" implies that the word containing the sign
  29 #   bit is found in the memory location with the lowest address. This
  30 #   implementation was inspired by the AC_C_BIGENDIAN macro in autoconf.
  31 #
  32 #   The endianness is detected by first compiling C code that contains a
  33 #   special double float value, then grepping the resulting object file for
  34 #   certain strings of ASCII values. The double is specially crafted to have
  35 #   a binary representation that corresponds with a simple string. In this
  36 #   implementation, the string "noonsees" was selected because the
  37 #   individual word values ("noon" and "sees") are palindromes, thus making
  38 #   this test byte-order agnostic. If grep finds the string "noonsees" in
  39 #   the object file, the target platform stores float words in big-endian
  40 #   order. If grep finds "seesnoon", float words are in little-endian order.
  41 #   If neither value is found, the user is instructed to specify the
  42 #   ordering.
  43 #
  44 # LICENSE
  45 #
  46 #   Copyright (c) 2008 Daniel Amelang <dan@amelang.net>
  47 #
  48 #   Copying and distribution of this file, with or without modification, are
  49 #   permitted in any medium without royalty provided the copyright notice
  50 #   and this notice are preserved. This file is offered as-is, without any
  51 #   warranty.
  52
  53 #serial 11
  54
  55 AC_DEFUN([AX_C_FLOAT_WORDS_BIGENDIAN],
  56   [AC_CACHE_CHECK(whether float word ordering is bigendian,
  57                   ax_cv_c_float_words_bigendian, [
  58
  59 ax_cv_c_float_words_bigendian=unknown
  60 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
  61
  62 double d = 90904234967036810337470478905505011476211692735615632014797120844053488865816695273723469097858056257517020191247487429516932130503560650002327564517570778480236724525140520121371739201496540132640109977779420565776568942592.0;
  63
  64 ]])], [
  65
  66 if grep noonsees conftest.$ac_objext >/dev/null ; then
  67   ax_cv_c_float_words_bigendian=yes
  68 fi
  69 if grep seesnoon conftest.$ac_objext >/dev/null ; then
  70   if test "$ax_cv_c_float_words_bigendian" = unknown; then
  71     ax_cv_c_float_words_bigendian=no
  72   else
  73     ax_cv_c_float_words_bigendian=unknown
  74   fi
  75 fi
  76
  77 ])])
  78
  79 case $ax_cv_c_float_words_bigendian in
  80   yes)
  81     m4_default([$1],
  82       [AC_DEFINE([FLOAT_WORDS_BIGENDIAN], 1,
  83                  [Define to 1 if your system stores words within floats
  84                   with the most significant word first])]) ;;
  85   no)
  86     $2 ;;
  87   *)
  88     m4_default([$3],
  89       [AC_MSG_ERROR([
  90
  91 Unknown float word ordering. You need to manually preset
  92 ax_cv_c_float_words_bigendian=no (or yes) according to your system.
  93
  94     ])]) ;;
  95 esac
  96
  97 ])# AX_C_FLOAT_WORDS_BIGENDIAN
  98
  99 # ===========================================================================
 100 #  https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
 101 # ===========================================================================
 102 #
 103 # SYNOPSIS
 104 #
 105 #   AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
 106 #
 107 # DESCRIPTION
 108 #
 109 #   Check whether the given FLAG works with the current language's compiler
 110 #   or gives an error.  (Warnings, however, are ignored)
 111 #
 112 #   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
 113 #   success/failure.
 114 #
 115 #   If EXTRA-FLAGS is defined, it is added to the current language's default
 116 #   flags (e.g. CFLAGS) when the check is done.  The check is thus made with
 117 #   the flags: "CFLAGS EXTRA-FLAGS FLAG".  This can for example be used to
 118 #   force the compiler to issue an error when a bad flag is given.
 119 #
 120 #   INPUT gives an alternative input source to AC_COMPILE_IFELSE.
 121 #
 122 #   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
 123 #   macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
 124 #
 125 # LICENSE
 126 #
 127 #   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
 128 #   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
 129 #
 130 #   Copying and distribution of this file, with or without modification, are
 131 #   permitted in any medium without royalty provided the copyright notice
 132 #   and this notice are preserved.  This file is offered as-is, without any
 133 #   warranty.
 134
 135 #serial 6
 136
 137 AC_DEFUN([AX_CHECK_COMPILE_FLAG],
 138 [AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
 139 AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
 140 AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
 141   ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
 142   _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
 143   AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
 144     [AS_VAR_SET(CACHEVAR,[yes])],
 145     [AS_VAR_SET(CACHEVAR,[no])])
 146   _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
 147 AS_VAR_IF(CACHEVAR,yes,
 148   [m4_default([$2], :)],
 149   [m4_default([$3], :)])
 150 AS_VAR_POPDEF([CACHEVAR])dnl
 151 ])dnl AX_CHECK_COMPILE_FLAGS
 152
 153 # ===========================================================================
 154 #     https://www.gnu.org/software/autoconf-archive/ax_check_openssl.html
 155 # ===========================================================================
 156 #
 157 # SYNOPSIS
 158 #
 159 #   AX_CHECK_OPENSSL([action-if-found[, action-if-not-found]])
 160 #
 161 # DESCRIPTION
 162 #
 163 #   Look for OpenSSL in a number of default spots, or in a user-selected
 164 #   spot (via --with-openssl).  Sets
 165 #
 166 #     OPENSSL_INCLUDES to the include directives required
 167 #     OPENSSL_LIBS to the -l directives required
 168 #     OPENSSL_LDFLAGS to the -L or -R flags required
 169 #
 170 #   and calls ACTION-IF-FOUND or ACTION-IF-NOT-FOUND appropriately
 171 #
 172 #   This macro sets OPENSSL_INCLUDES such that source files should use the
 173 #   openssl/ directory in include directives:
 174 #
 175 #     #include <openssl/hmac.h>
 176 #
 177 # LICENSE
 178 #
 179 #   Copyright (c) 2009,2010 Zmanda Inc. <http://www.zmanda.com/>
 180 #   Copyright (c) 2009,2010 Dustin J. Mitchell <dustin@zmanda.com>
 181 #
 182 #   Copying and distribution of this file, with or without modification, are
 183 #   permitted in any medium without royalty provided the copyright notice
 184 #   and this notice are preserved. This file is offered as-is, without any
 185 #   warranty.
 186
 187 #serial 10
 188
 189 AU_ALIAS([CHECK_SSL], [AX_CHECK_OPENSSL])
 190 AC_DEFUN([AX_CHECK_OPENSSL], [
 191     found=false
 192     AC_ARG_WITH([openssl],
 193         [AS_HELP_STRING([--with-openssl=DIR],
 194             [root of the OpenSSL directory])],
 195         [
 196             case "$withval" in
 197             "" | y | ye | yes | n | no)
 198             AC_MSG_ERROR([Invalid --with-openssl value])
 199               ;;
 200             *) ssldirs="$withval"
 201               ;;
 202             esac
 203         ], [
 204             # if pkg-config is installed and openssl has installed a .pc file,
 205             # then use that information and don't search ssldirs
 206             AC_CHECK_TOOL([PKG_CONFIG], [pkg-config])
 207             if test x"$PKG_CONFIG" != x""; then
 208                 OPENSSL_LDFLAGS=`$PKG_CONFIG openssl --libs-only-L 2>/dev/null`
 209                 if test $? = 0; then
 210                     OPENSSL_LIBS=`$PKG_CONFIG openssl --libs-only-l 2>/dev/null`
 211                     OPENSSL_INCLUDES=`$PKG_CONFIG openssl --cflags-only-I 2>/dev/null`
 212                     found=true
 213                 fi
 214             fi
 215
 216             # no such luck; use some default ssldirs
 217             if ! $found; then
 218                 ssldirs="/usr/local/ssl /usr/lib/ssl /usr/ssl /usr/pkg /usr/local /usr"
 219             fi
 220         ]
 221         )
 222
 223
 224     # note that we #include <openssl/foo.h>, so the OpenSSL headers have to be in
 225     # an 'openssl' subdirectory
 226
 227     if ! $found; then
 228         OPENSSL_INCLUDES=
 229         for ssldir in $ssldirs; do
 230             AC_MSG_CHECKING([for openssl/ssl.h in $ssldir])
 231             if test -f "$ssldir/include/openssl/ssl.h"; then
 232                 OPENSSL_INCLUDES="-I$ssldir/include"
 233                 OPENSSL_LDFLAGS="-L$ssldir/lib"
 234                 OPENSSL_LIBS="-lssl -lcrypto"
 235                 found=true
 236                 AC_MSG_RESULT([yes])
 237                 break
 238             else
 239                 AC_MSG_RESULT([no])
 240             fi
 241         done
 242
 243         # if the file wasn't found, well, go ahead and try the link anyway -- maybe
 244         # it will just work!
 245     fi
 246
 247     # try the preprocessor and linker with our new flags,
 248     # being careful not to pollute the global LIBS, LDFLAGS, and CPPFLAGS
 249
 250     AC_MSG_CHECKING([whether compiling and linking against OpenSSL works])
 251     echo "Trying link with OPENSSL_LDFLAGS=$OPENSSL_LDFLAGS;" \
 252         "OPENSSL_LIBS=$OPENSSL_LIBS; OPENSSL_INCLUDES=$OPENSSL_INCLUDES" >&AS_MESSAGE_LOG_FD
 253
 254     save_LIBS="$LIBS"
 255     save_LDFLAGS="$LDFLAGS"
 256     save_CPPFLAGS="$CPPFLAGS"
 257     LDFLAGS="$LDFLAGS $OPENSSL_LDFLAGS"
 258     LIBS="$OPENSSL_LIBS $LIBS"
 259     CPPFLAGS="$OPENSSL_INCLUDES $CPPFLAGS"
 260     AC_LINK_IFELSE(
 261         [AC_LANG_PROGRAM([#include <openssl/ssl.h>], [SSL_new(NULL)])],
 262         [
 263             AC_MSG_RESULT([yes])
 264             $1
 265         ], [
 266             AC_MSG_RESULT([no])
 267             $2
 268         ])
 269     CPPFLAGS="$save_CPPFLAGS"
 270     LDFLAGS="$save_LDFLAGS"
 271     LIBS="$save_LIBS"
 272
 273     AC_SUBST([OPENSSL_INCLUDES])
 274     AC_SUBST([OPENSSL_LIBS])
 275     AC_SUBST([OPENSSL_LDFLAGS])
 276 ])
 277
 278 # pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
 279 # serial 11 (pkg-config-0.29.1)
 280
 281 dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
 282 dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
 283 dnl
 284 dnl This program is free software; you can redistribute it and/or modify
 285 dnl it under the terms of the GNU General Public License as published by
 286 dnl the Free Software Foundation; either version 2 of the License, or
 287 dnl (at your option) any later version.
 288 dnl
 289 dnl This program is distributed in the hope that it will be useful, but
 290 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
 291 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 292 dnl General Public License for more details.
 293 dnl
 294 dnl You should have received a copy of the GNU General Public License
 295 dnl along with this program; if not, write to the Free Software
 296 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 297 dnl 02111-1307, USA.
 298 dnl
 299 dnl As a special exception to the GNU General Public License, if you
 300 dnl distribute this file as part of a program that contains a
 301 dnl configuration script generated by Autoconf, you may include it under
 302 dnl the same distribution terms that you use for the rest of that
 303 dnl program.
 304
 305 dnl PKG_PREREQ(MIN-VERSION)
 306 dnl -----------------------
 307 dnl Since: 0.29
 308 dnl
 309 dnl Verify that the version of the pkg-config macros are at least
 310 dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
 311 dnl installed version of pkg-config, this checks the developer's version
 312 dnl of pkg.m4 when generating configure.
 313 dnl
 314 dnl To ensure that this macro is defined, also add:
 315 dnl m4_ifndef([PKG_PREREQ],
 316 dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
 317 dnl
 318 dnl See the "Since" comment for each macro you use to see what version
 319 dnl of the macros you require.
 320 m4_defun([PKG_PREREQ],
 321 [m4_define([PKG_MACROS_VERSION], [0.29.1])
 322 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
 323     [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
 324 ])dnl PKG_PREREQ
 325
 326 dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
 327 dnl ----------------------------------
 328 dnl Since: 0.16
 329 dnl
 330 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
 331 dnl first found in the path. Checks that the version of pkg-config found
 332 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
 333 dnl used since that's the first version where most current features of
 334 dnl pkg-config existed.
 335 AC_DEFUN([PKG_PROG_PKG_CONFIG],
 336 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
 337 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
 338 m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
 339 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
 340 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
 341 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
 342
 343 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
 344         AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
 345 fi
 346 if test -n "$PKG_CONFIG"; then
 347         _pkg_min_version=m4_default([$1], [0.9.0])
 348         AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
 349         if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
 350                 AC_MSG_RESULT([yes])
 351         else
 352                 AC_MSG_RESULT([no])
 353                 PKG_CONFIG=""
 354         fi
 355 fi[]dnl
 356 ])dnl PKG_PROG_PKG_CONFIG
 357
 358 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 359 dnl -------------------------------------------------------------------
 360 dnl Since: 0.18
 361 dnl
 362 dnl Check to see whether a particular set of modules exists. Similar to
 363 dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
 364 dnl
 365 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
 366 dnl only at the first occurence in configure.ac, so if the first place
 367 dnl it's called might be skipped (such as if it is within an "if", you
 368 dnl have to call PKG_CHECK_EXISTS manually
 369 AC_DEFUN([PKG_CHECK_EXISTS],
 370 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 371 if test -n "$PKG_CONFIG" && \
 372     AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
 373   m4_default([$2], [:])
 374 m4_ifvaln([$3], [else
 375   $3])dnl
 376 fi])
 377
 378 dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
 379 dnl ---------------------------------------------
 380 dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
 381 dnl pkg_failed based on the result.
 382 m4_define([_PKG_CONFIG],
 383 [if test -n "$$1"; then
 384     pkg_cv_[]$1="$$1"
 385  elif test -n "$PKG_CONFIG"; then
 386     PKG_CHECK_EXISTS([$3],
 387                      [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
 388                       test "x$?" != "x0" && pkg_failed=yes ],
 389                      [pkg_failed=yes])
 390  else
 391     pkg_failed=untried
 392 fi[]dnl
 393 ])dnl _PKG_CONFIG
 394
 395 dnl _PKG_SHORT_ERRORS_SUPPORTED
 396 dnl ---------------------------
 397 dnl Internal check to see if pkg-config supports short errors.
 398 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
 399 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
 400 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
 401         _pkg_short_errors_supported=yes
 402 else
 403         _pkg_short_errors_supported=no
 404 fi[]dnl
 405 ])dnl _PKG_SHORT_ERRORS_SUPPORTED
 406
 407
 408 dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
 409 dnl   [ACTION-IF-NOT-FOUND])
 410 dnl --------------------------------------------------------------
 411 dnl Since: 0.4.0
 412 dnl
 413 dnl Note that if there is a possibility the first call to
 414 dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
 415 dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
 416 AC_DEFUN([PKG_CHECK_MODULES],
 417 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 418 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
 419 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
 420
 421 pkg_failed=no
 422 AC_MSG_CHECKING([for $1])
 423
 424 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
 425 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
 426
 427 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
 428 and $1[]_LIBS to avoid the need to call pkg-config.
 429 See the pkg-config man page for more details.])
 430
 431 if test $pkg_failed = yes; then
 432         AC_MSG_RESULT([no])
 433         _PKG_SHORT_ERRORS_SUPPORTED
 434         if test $_pkg_short_errors_supported = yes; then
 435                 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
 436         else
 437                 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
 438         fi
 439         # Put the nasty error message in config.log where it belongs
 440         echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
 441
 442         m4_default([$4], [AC_MSG_ERROR(
 443 [Package requirements ($2) were not met:
 444
 445 $$1_PKG_ERRORS
 446
 447 Consider adjusting the PKG_CONFIG_PATH environment variable if you
 448 installed software in a non-standard prefix.
 449
 450 _PKG_TEXT])[]dnl
 451         ])
 452 elif test $pkg_failed = untried; then
 453         AC_MSG_RESULT([no])
 454         m4_default([$4], [AC_MSG_FAILURE(
 455 [The pkg-config script could not be found or is too old.  Make sure it
 456 is in your PATH or set the PKG_CONFIG environment variable to the full
 457 path to pkg-config.
 458
 459 _PKG_TEXT
 460
 461 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
 462         ])
 463 else
 464         $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
 465         $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
 466         AC_MSG_RESULT([yes])
 467         $3
 468 fi[]dnl
 469 ])dnl PKG_CHECK_MODULES
 470
 471
 472 dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
 473 dnl   [ACTION-IF-NOT-FOUND])
 474 dnl ---------------------------------------------------------------------
 475 dnl Since: 0.29
 476 dnl
 477 dnl Checks for existence of MODULES and gathers its build flags with
 478 dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
 479 dnl and VARIABLE-PREFIX_LIBS from --libs.
 480 dnl
 481 dnl Note that if there is a possibility the first call to
 482 dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
 483 dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
 484 dnl configure.ac.
 485 AC_DEFUN([PKG_CHECK_MODULES_STATIC],
 486 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 487 _save_PKG_CONFIG=$PKG_CONFIG
 488 PKG_CONFIG="$PKG_CONFIG --static"
 489 PKG_CHECK_MODULES($@)
 490 PKG_CONFIG=$_save_PKG_CONFIG[]dnl
 491 ])dnl PKG_CHECK_MODULES_STATIC
 492
 493
 494 dnl PKG_INSTALLDIR([DIRECTORY])
 495 dnl -------------------------
 496 dnl Since: 0.27
 497 dnl
 498 dnl Substitutes the variable pkgconfigdir as the location where a module
 499 dnl should install pkg-config .pc files. By default the directory is
 500 dnl $libdir/pkgconfig, but the default can be changed by passing
 501 dnl DIRECTORY. The user can override through the --with-pkgconfigdir
 502 dnl parameter.
 503 AC_DEFUN([PKG_INSTALLDIR],
 504 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
 505 m4_pushdef([pkg_description],
 506     [pkg-config installation directory @<:@]pkg_default[@:>@])
 507 AC_ARG_WITH([pkgconfigdir],
 508     [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
 509     [with_pkgconfigdir=]pkg_default)
 510 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
 511 m4_popdef([pkg_default])
 512 m4_popdef([pkg_description])
 513 ])dnl PKG_INSTALLDIR
 514
 515
 516 dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
 517 dnl --------------------------------
 518 dnl Since: 0.27
 519 dnl
 520 dnl Substitutes the variable noarch_pkgconfigdir as the location where a
 521 dnl module should install arch-independent pkg-config .pc files. By
 522 dnl default the directory is $datadir/pkgconfig, but the default can be
 523 dnl changed by passing DIRECTORY. The user can override through the
 524 dnl --with-noarch-pkgconfigdir parameter.
 525 AC_DEFUN([PKG_NOARCH_INSTALLDIR],
 526 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
 527 m4_pushdef([pkg_description],
 528     [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
 529 AC_ARG_WITH([noarch-pkgconfigdir],
 530     [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
 531     [with_noarch_pkgconfigdir=]pkg_default)
 532 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
 533 m4_popdef([pkg_default])
 534 m4_popdef([pkg_description])
 535 ])dnl PKG_NOARCH_INSTALLDIR
 536
 537
 538 dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
 539 dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
 540 dnl -------------------------------------------
 541 dnl Since: 0.28
 542 dnl
 543 dnl Retrieves the value of the pkg-config variable for the given module.
 544 AC_DEFUN([PKG_CHECK_VAR],
 545 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
 546 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
 547
 548 _PKG_CONFIG([$1], [variable="][$3]["], [$2])
 549 AS_VAR_COPY([$1], [pkg_cv_][$1])
 550
 551 AS_VAR_IF([$1], [""], [$5], [$4])dnl
 552 ])dnl PKG_CHECK_VAR
 553
 554 dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
 555 dnl   [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
 556 dnl   [DESCRIPTION], [DEFAULT])
 557 dnl ------------------------------------------
 558 dnl
 559 dnl Prepare a "--with-" configure option using the lowercase
 560 dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
 561 dnl PKG_CHECK_MODULES in a single macro.
 562 AC_DEFUN([PKG_WITH_MODULES],
 563 [
 564 m4_pushdef([with_arg], m4_tolower([$1]))
 565
 566 m4_pushdef([description],
 567            [m4_default([$5], [build with ]with_arg[ support])])
 568
 569 m4_pushdef([def_arg], [m4_default([$6], [auto])])
 570 m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
 571 m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])
 572
 573 m4_case(def_arg,
 574             [yes],[m4_pushdef([with_without], [--without-]with_arg)],
 575             [m4_pushdef([with_without],[--with-]with_arg)])
 576
 577 AC_ARG_WITH(with_arg,
 578      AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
 579     [AS_TR_SH([with_]with_arg)=def_arg])
 580
 581 AS_CASE([$AS_TR_SH([with_]with_arg)],
 582             [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
 583             [auto],[PKG_CHECK_MODULES([$1],[$2],
 584                                         [m4_n([def_action_if_found]) $3],
 585                                         [m4_n([def_action_if_not_found]) $4])])
 586
 587 m4_popdef([with_arg])
 588 m4_popdef([description])
 589 m4_popdef([def_arg])
 590
 591 ])dnl PKG_WITH_MODULES
 592
 593 dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
 594 dnl   [DESCRIPTION], [DEFAULT])
 595 dnl -----------------------------------------------
 596 dnl
 597 dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
 598 dnl check._[VARIABLE-PREFIX] is exported as make variable.
 599 AC_DEFUN([PKG_HAVE_WITH_MODULES],
 600 [
 601 PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
 602
 603 AM_CONDITIONAL([HAVE_][$1],
 604                [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
 605 ])dnl PKG_HAVE_WITH_MODULES
 606
 607 dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
 608 dnl   [DESCRIPTION], [DEFAULT])
 609 dnl ------------------------------------------------------
 610 dnl
 611 dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
 612 dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
 613 dnl and preprocessor variable.
 614 AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
 615 [
 616 PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
 617
 618 AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
 619         [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
 620 ])dnl PKG_HAVE_DEFINE_WITH_MODULES
 621
 622 # AM_CONDITIONAL                                            -*- Autoconf -*-
 623
 624 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
 625 #
 626 # This file is free software; the Free Software Foundation
 627 # gives unlimited permission to copy and/or distribute it,
 628 # with or without modifications, as long as this notice is preserved.
 629
 630 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
 631 # -------------------------------------
 632 # Define a conditional.
 633 AC_DEFUN([AM_CONDITIONAL],
 634 [AC_PREREQ([2.52])dnl
 635  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
 636        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
 637 AC_SUBST([$1_TRUE])dnl
 638 AC_SUBST([$1_FALSE])dnl
 639 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
 640 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
 641 m4_define([_AM_COND_VALUE_$1], [$2])dnl
 642 if $2; then
 643   $1_TRUE=
 644   $1_FALSE='#'
 645 else
 646   $1_TRUE='#'
 647   $1_FALSE=
 648 fi
 649 AC_CONFIG_COMMANDS_PRE(
 650 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
 651   AC_MSG_ERROR([[conditional "$1" was never defined.
 652 Usually this means the macro was only invoked conditionally.]])
 653 fi])])
 654
 655 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
 656 #
 657 # This file is free software; the Free Software Foundation
 658 # gives unlimited permission to copy and/or distribute it,
 659 # with or without modifications, as long as this notice is preserved.
 660
 661 # _AM_SUBST_NOTMAKE(VARIABLE)
 662 # ---------------------------
 663 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 664 # This macro is traced by Automake.
 665 AC_DEFUN([_AM_SUBST_NOTMAKE])
 666
 667 # AM_SUBST_NOTMAKE(VARIABLE)
 668 # --------------------------
 669 # Public sister of _AM_SUBST_NOTMAKE.
 670 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 671