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 14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])]) 15m4_ifndef([AC_AUTOCONF_VERSION], 16 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl 17m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.71],, 18[m4_warning([this file was generated for autoconf 2.71. 19You have another version of autoconf. It may work, but is not guaranteed to. 20If you have problems, you may need to regenerate the build system entirely. 21To do so, use the procedure documented by the package, typically 'autoreconf'.])]) 22 23# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- 24# serial 11 (pkg-config-0.29.1) 25 26dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>. 27dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com> 28dnl 29dnl This program is free software; you can redistribute it and/or modify 30dnl it under the terms of the GNU General Public License as published by 31dnl the Free Software Foundation; either version 2 of the License, or 32dnl (at your option) any later version. 33dnl 34dnl This program is distributed in the hope that it will be useful, but 35dnl WITHOUT ANY WARRANTY; without even the implied warranty of 36dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 37dnl General Public License for more details. 38dnl 39dnl You should have received a copy of the GNU General Public License 40dnl along with this program; if not, write to the Free Software 41dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 42dnl 02111-1307, USA. 43dnl 44dnl As a special exception to the GNU General Public License, if you 45dnl distribute this file as part of a program that contains a 46dnl configuration script generated by Autoconf, you may include it under 47dnl the same distribution terms that you use for the rest of that 48dnl program. 49 50dnl PKG_PREREQ(MIN-VERSION) 51dnl ----------------------- 52dnl Since: 0.29 53dnl 54dnl Verify that the version of the pkg-config macros are at least 55dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's 56dnl installed version of pkg-config, this checks the developer's version 57dnl of pkg.m4 when generating configure. 58dnl 59dnl To ensure that this macro is defined, also add: 60dnl m4_ifndef([PKG_PREREQ], 61dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) 62dnl 63dnl See the "Since" comment for each macro you use to see what version 64dnl of the macros you require. 65m4_defun([PKG_PREREQ], 66[m4_define([PKG_MACROS_VERSION], [0.29.1]) 67m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, 68 [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) 69])dnl PKG_PREREQ 70 71dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) 72dnl ---------------------------------- 73dnl Since: 0.16 74dnl 75dnl Search for the pkg-config tool and set the PKG_CONFIG variable to 76dnl first found in the path. Checks that the version of pkg-config found 77dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is 78dnl used since that's the first version where most current features of 79dnl pkg-config existed. 80AC_DEFUN([PKG_PROG_PKG_CONFIG], 81[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) 82m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) 83m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) 84AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) 85AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) 86AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) 87 88if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then 89 AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) 90fi 91if test -n "$PKG_CONFIG"; then 92 _pkg_min_version=m4_default([$1], [0.9.0]) 93 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) 94 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then 95 AC_MSG_RESULT([yes]) 96 else 97 AC_MSG_RESULT([no]) 98 PKG_CONFIG="" 99 fi 100fi[]dnl 101])dnl PKG_PROG_PKG_CONFIG 102 103dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 104dnl ------------------------------------------------------------------- 105dnl Since: 0.18 106dnl 107dnl Check to see whether a particular set of modules exists. Similar to 108dnl PKG_CHECK_MODULES(), but does not set variables or print errors. 109dnl 110dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 111dnl only at the first occurence in configure.ac, so if the first place 112dnl it's called might be skipped (such as if it is within an "if", you 113dnl have to call PKG_CHECK_EXISTS manually 114AC_DEFUN([PKG_CHECK_EXISTS], 115[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 116if test -n "$PKG_CONFIG" && \ 117 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then 118 m4_default([$2], [:]) 119m4_ifvaln([$3], [else 120 $3])dnl 121fi]) 122 123dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) 124dnl --------------------------------------------- 125dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting 126dnl pkg_failed based on the result. 127m4_define([_PKG_CONFIG], 128[if test -n "$$1"; then 129 pkg_cv_[]$1="$$1" 130 elif test -n "$PKG_CONFIG"; then 131 PKG_CHECK_EXISTS([$3], 132 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` 133 test "x$?" != "x0" && pkg_failed=yes ], 134 [pkg_failed=yes]) 135 else 136 pkg_failed=untried 137fi[]dnl 138])dnl _PKG_CONFIG 139 140dnl _PKG_SHORT_ERRORS_SUPPORTED 141dnl --------------------------- 142dnl Internal check to see if pkg-config supports short errors. 143AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], 144[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 145if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then 146 _pkg_short_errors_supported=yes 147else 148 _pkg_short_errors_supported=no 149fi[]dnl 150])dnl _PKG_SHORT_ERRORS_SUPPORTED 151 152 153dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 154dnl [ACTION-IF-NOT-FOUND]) 155dnl -------------------------------------------------------------- 156dnl Since: 0.4.0 157dnl 158dnl Note that if there is a possibility the first call to 159dnl PKG_CHECK_MODULES might not happen, you should be sure to include an 160dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac 161AC_DEFUN([PKG_CHECK_MODULES], 162[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 163AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl 164AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl 165 166pkg_failed=no 167AC_MSG_CHECKING([for $1]) 168 169_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) 170_PKG_CONFIG([$1][_LIBS], [libs], [$2]) 171 172m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS 173and $1[]_LIBS to avoid the need to call pkg-config. 174See the pkg-config man page for more details.]) 175 176if test $pkg_failed = yes; then 177 AC_MSG_RESULT([no]) 178 _PKG_SHORT_ERRORS_SUPPORTED 179 if test $_pkg_short_errors_supported = yes; then 180 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` 181 else 182 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` 183 fi 184 # Put the nasty error message in config.log where it belongs 185 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD 186 187 m4_default([$4], [AC_MSG_ERROR( 188[Package requirements ($2) were not met: 189 190$$1_PKG_ERRORS 191 192Consider adjusting the PKG_CONFIG_PATH environment variable if you 193installed software in a non-standard prefix. 194 195_PKG_TEXT])[]dnl 196 ]) 197elif test $pkg_failed = untried; then 198 AC_MSG_RESULT([no]) 199 m4_default([$4], [AC_MSG_FAILURE( 200[The pkg-config script could not be found or is too old. Make sure it 201is in your PATH or set the PKG_CONFIG environment variable to the full 202path to pkg-config. 203 204_PKG_TEXT 205 206To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl 207 ]) 208else 209 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS 210 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS 211 AC_MSG_RESULT([yes]) 212 $3 213fi[]dnl 214])dnl PKG_CHECK_MODULES 215 216 217dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 218dnl [ACTION-IF-NOT-FOUND]) 219dnl --------------------------------------------------------------------- 220dnl Since: 0.29 221dnl 222dnl Checks for existence of MODULES and gathers its build flags with 223dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags 224dnl and VARIABLE-PREFIX_LIBS from --libs. 225dnl 226dnl Note that if there is a possibility the first call to 227dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to 228dnl include an explicit call to PKG_PROG_PKG_CONFIG in your 229dnl configure.ac. 230AC_DEFUN([PKG_CHECK_MODULES_STATIC], 231[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 232_save_PKG_CONFIG=$PKG_CONFIG 233PKG_CONFIG="$PKG_CONFIG --static" 234PKG_CHECK_MODULES($@) 235PKG_CONFIG=$_save_PKG_CONFIG[]dnl 236])dnl PKG_CHECK_MODULES_STATIC 237 238 239dnl PKG_INSTALLDIR([DIRECTORY]) 240dnl ------------------------- 241dnl Since: 0.27 242dnl 243dnl Substitutes the variable pkgconfigdir as the location where a module 244dnl should install pkg-config .pc files. By default the directory is 245dnl $libdir/pkgconfig, but the default can be changed by passing 246dnl DIRECTORY. The user can override through the --with-pkgconfigdir 247dnl parameter. 248AC_DEFUN([PKG_INSTALLDIR], 249[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) 250m4_pushdef([pkg_description], 251 [pkg-config installation directory @<:@]pkg_default[@:>@]) 252AC_ARG_WITH([pkgconfigdir], 253 [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, 254 [with_pkgconfigdir=]pkg_default) 255AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) 256m4_popdef([pkg_default]) 257m4_popdef([pkg_description]) 258])dnl PKG_INSTALLDIR 259 260 261dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) 262dnl -------------------------------- 263dnl Since: 0.27 264dnl 265dnl Substitutes the variable noarch_pkgconfigdir as the location where a 266dnl module should install arch-independent pkg-config .pc files. By 267dnl default the directory is $datadir/pkgconfig, but the default can be 268dnl changed by passing DIRECTORY. The user can override through the 269dnl --with-noarch-pkgconfigdir parameter. 270AC_DEFUN([PKG_NOARCH_INSTALLDIR], 271[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) 272m4_pushdef([pkg_description], 273 [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) 274AC_ARG_WITH([noarch-pkgconfigdir], 275 [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, 276 [with_noarch_pkgconfigdir=]pkg_default) 277AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) 278m4_popdef([pkg_default]) 279m4_popdef([pkg_description]) 280])dnl PKG_NOARCH_INSTALLDIR 281 282 283dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, 284dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 285dnl ------------------------------------------- 286dnl Since: 0.28 287dnl 288dnl Retrieves the value of the pkg-config variable for the given module. 289AC_DEFUN([PKG_CHECK_VAR], 290[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 291AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl 292 293_PKG_CONFIG([$1], [variable="][$3]["], [$2]) 294AS_VAR_COPY([$1], [pkg_cv_][$1]) 295 296AS_VAR_IF([$1], [""], [$5], [$4])dnl 297])dnl PKG_CHECK_VAR 298 299dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES, 300dnl [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND], 301dnl [DESCRIPTION], [DEFAULT]) 302dnl ------------------------------------------ 303dnl 304dnl Prepare a "--with-" configure option using the lowercase 305dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and 306dnl PKG_CHECK_MODULES in a single macro. 307AC_DEFUN([PKG_WITH_MODULES], 308[ 309m4_pushdef([with_arg], m4_tolower([$1])) 310 311m4_pushdef([description], 312 [m4_default([$5], [build with ]with_arg[ support])]) 313 314m4_pushdef([def_arg], [m4_default([$6], [auto])]) 315m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes]) 316m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no]) 317 318m4_case(def_arg, 319 [yes],[m4_pushdef([with_without], [--without-]with_arg)], 320 [m4_pushdef([with_without],[--with-]with_arg)]) 321 322AC_ARG_WITH(with_arg, 323 AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),, 324 [AS_TR_SH([with_]with_arg)=def_arg]) 325 326AS_CASE([$AS_TR_SH([with_]with_arg)], 327 [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)], 328 [auto],[PKG_CHECK_MODULES([$1],[$2], 329 [m4_n([def_action_if_found]) $3], 330 [m4_n([def_action_if_not_found]) $4])]) 331 332m4_popdef([with_arg]) 333m4_popdef([description]) 334m4_popdef([def_arg]) 335 336])dnl PKG_WITH_MODULES 337 338dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES, 339dnl [DESCRIPTION], [DEFAULT]) 340dnl ----------------------------------------------- 341dnl 342dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES 343dnl check._[VARIABLE-PREFIX] is exported as make variable. 344AC_DEFUN([PKG_HAVE_WITH_MODULES], 345[ 346PKG_WITH_MODULES([$1],[$2],,,[$3],[$4]) 347 348AM_CONDITIONAL([HAVE_][$1], 349 [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"]) 350])dnl PKG_HAVE_WITH_MODULES 351 352dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES, 353dnl [DESCRIPTION], [DEFAULT]) 354dnl ------------------------------------------------------ 355dnl 356dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after 357dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make 358dnl and preprocessor variable. 359AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES], 360[ 361PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4]) 362 363AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"], 364 [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])]) 365])dnl PKG_HAVE_DEFINE_WITH_MODULES 366 367# Copyright (C) 2002-2020 Free Software Foundation, Inc. 368# 369# This file is free software; the Free Software Foundation 370# gives unlimited permission to copy and/or distribute it, 371# with or without modifications, as long as this notice is preserved. 372 373# AM_AUTOMAKE_VERSION(VERSION) 374# ---------------------------- 375# Automake X.Y traces this macro to ensure aclocal.m4 has been 376# generated from the m4 files accompanying Automake X.Y. 377# (This private macro should not be called outside this file.) 378AC_DEFUN([AM_AUTOMAKE_VERSION], 379[am__api_version='1.16' 380dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to 381dnl require some minimum version. Point them to the right macro. 382m4_if([$1], [1.16.3], [], 383 [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl 384]) 385 386# _AM_AUTOCONF_VERSION(VERSION) 387# ----------------------------- 388# aclocal traces this macro to find the Autoconf version. 389# This is a private macro too. Using m4_define simplifies 390# the logic in aclocal, which can simply ignore this definition. 391m4_define([_AM_AUTOCONF_VERSION], []) 392 393# AM_SET_CURRENT_AUTOMAKE_VERSION 394# ------------------------------- 395# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced. 396# This function is AC_REQUIREd by AM_INIT_AUTOMAKE. 397AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION], 398[AM_AUTOMAKE_VERSION([1.16.3])dnl 399m4_ifndef([AC_AUTOCONF_VERSION], 400 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl 401_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))]) 402 403# Copyright (C) 2011-2020 Free Software Foundation, Inc. 404# 405# This file is free software; the Free Software Foundation 406# gives unlimited permission to copy and/or distribute it, 407# with or without modifications, as long as this notice is preserved. 408 409# AM_PROG_AR([ACT-IF-FAIL]) 410# ------------------------- 411# Try to determine the archiver interface, and trigger the ar-lib wrapper 412# if it is needed. If the detection of archiver interface fails, run 413# ACT-IF-FAIL (default is to abort configure with a proper error message). 414AC_DEFUN([AM_PROG_AR], 415[AC_BEFORE([$0], [LT_INIT])dnl 416AC_BEFORE([$0], [AC_PROG_LIBTOOL])dnl 417AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl 418AC_REQUIRE_AUX_FILE([ar-lib])dnl 419AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false]) 420: ${AR=ar} 421 422AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface], 423 [AC_LANG_PUSH([C]) 424 am_cv_ar_interface=ar 425 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int some_variable = 0;]])], 426 [am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&AS_MESSAGE_LOG_FD' 427 AC_TRY_EVAL([am_ar_try]) 428 if test "$ac_status" -eq 0; then 429 am_cv_ar_interface=ar 430 else 431 am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&AS_MESSAGE_LOG_FD' 432 AC_TRY_EVAL([am_ar_try]) 433 if test "$ac_status" -eq 0; then 434 am_cv_ar_interface=lib 435 else 436 am_cv_ar_interface=unknown 437 fi 438 fi 439 rm -f conftest.lib libconftest.a 440 ]) 441 AC_LANG_POP([C])]) 442 443case $am_cv_ar_interface in 444ar) 445 ;; 446lib) 447 # Microsoft lib, so override with the ar-lib wrapper script. 448 # FIXME: It is wrong to rewrite AR. 449 # But if we don't then we get into trouble of one sort or another. 450 # A longer-term fix would be to have automake use am__AR in this case, 451 # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something 452 # similar. 453 AR="$am_aux_dir/ar-lib $AR" 454 ;; 455unknown) 456 m4_default([$1], 457 [AC_MSG_ERROR([could not determine $AR interface])]) 458 ;; 459esac 460AC_SUBST([AR])dnl 461]) 462 463# AM_AUX_DIR_EXPAND -*- Autoconf -*- 464 465# Copyright (C) 2001-2020 Free Software Foundation, Inc. 466# 467# This file is free software; the Free Software Foundation 468# gives unlimited permission to copy and/or distribute it, 469# with or without modifications, as long as this notice is preserved. 470 471# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets 472# $ac_aux_dir to '$srcdir/foo'. 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