1# generated automatically by aclocal 1.16.2 -*- 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]), [2.69],, 18[m4_warning([this file was generated for autoconf 2.69. 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], [1.16.2], [], 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([1.16.2])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# AM_AUX_DIR_EXPAND -*- Autoconf -*- 404 405# Copyright (C) 2001-2020 Free Software Foundation, Inc. 406# 407# This file is free software; the Free Software Foundation 408# gives unlimited permission to copy and/or distribute it, 409# with or without modifications, as long as this notice is preserved. 410 411# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets 412# $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to 413# '$srcdir', '$srcdir/..', or '$srcdir/../..'. 414# 415# Of course, Automake must honor this variable whenever it calls a 416# tool from the auxiliary directory. The problem is that $srcdir (and 417# therefore $ac_aux_dir as well) can be either absolute or relative, 418# depending on how configure is run. This is pretty annoying, since 419# it makes $ac_aux_dir quite unusable in subdirectories: in the top 420# source directory, any form will work fine, but in subdirectories a 421# relative path needs to be adjusted first. 422# 423# $ac_aux_dir/missing 424# fails when called from a subdirectory if $ac_aux_dir is relative 425# $top_srcdir/$ac_aux_dir/missing 426# fails if $ac_aux_dir is absolute, 427# fails when called from a subdirectory in a VPATH build with 428# a relative $ac_aux_dir 429# 430# The reason of the latter failure is that $top_srcdir and $ac_aux_dir 431# are both prefixed by $srcdir. In an in-source build this is usually 432# harmless because $srcdir is '.', but things will broke when you 433# start a VPATH build or use an absolute $srcdir. 434# 435# So we could use something similar to $top_srcdir/$ac_aux_dir/missing, 436# iff we strip the leading $srcdir from $ac_aux_dir. That would be: 437# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"` 438# and then we would define $MISSING as 439# MISSING="\${SHELL} $am_aux_dir/missing" 440# This will work as long as MISSING is not called from configure, because 441# unfortunately $(top_srcdir) has no meaning in configure. 442# However there are other variables, like CC, which are often used in 443# configure, and could therefore not use this "fixed" $ac_aux_dir. 444# 445# Another solution, used here, is to always expand $ac_aux_dir to an 446# absolute PATH. The drawback is that using absolute paths prevent a 447# configured tree to be moved without reconfiguration. 448 449AC_DEFUN([AM_AUX_DIR_EXPAND], 450[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl 451# Expand $ac_aux_dir to an absolute path. 452am_aux_dir=`cd "$ac_aux_dir" && pwd` 453]) 454 455# AM_CONDITIONAL -*- Autoconf -*- 456 457# Copyright (C) 1997-2020 Free Software Foundation, Inc. 458# 459# This file is free software; the Free Software Foundation 460# gives unlimited permission to copy and/or distribute it, 461# with or without modifications, as long as this notice is preserved. 462 463# AM_CONDITIONAL(NAME, SHELL-CONDITION) 464# ------------------------------------- 465# Define a conditional. 466AC_DEFUN([AM_CONDITIONAL], 467[AC_PREREQ([2.52])dnl 468 m4_if([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])], 469 [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl 470AC_SUBST([$1_TRUE])dnl 471AC_SUBST([$1_FALSE])dnl 472_AM_SUBST_NOTMAKE([$1_TRUE])dnl 473_AM_SUBST_NOTMAKE([$1_FALSE])dnl 474m4_define([_AM_COND_VALUE_$1], [$2])dnl 475if $2; then 476 $1_TRUE= 477 $1_FALSE='#' 478else 479 $1_TRUE='#' 480 $1_FALSE= 481fi 482AC_CONFIG_COMMANDS_PRE( 483[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then 484 AC_MSG_ERROR([[conditional "$1" was never defined. 485Usually this means the macro was only invoked conditionally.]]) 486fi])]) 487 488# Do all the work for Automake. -*- Autoconf -*- 489 490# Copyright (C) 1996-2020 Free Software Foundation, Inc. 491# 492# This file is free software; the Free Software Foundation 493# gives unlimited permission to copy and/or distribute it, 494# with or without modifications, as long as this notice is preserved. 495 496# This macro actually does too much. Some checks are only needed if 497# your package does certain things. But this isn't really a big deal. 498 499dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O. 500m4_define([AC_PROG_CC], 501m4_defn([AC_PROG_CC]) 502[_AM_PROG_CC_C_O 503]) 504 505# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE]) 506# AM_INIT_AUTOMAKE([OPTIONS]) 507# ----------------------------------------------- 508# The call with PACKAGE and VERSION arguments is the old style 509# call (pre autoconf-2.50), which is being phased out. PACKAGE 510# and VERSION should now be passed to AC_INIT and removed from 511# the call to AM_INIT_AUTOMAKE. 512# We support both call styles for the transition. After 513# the next Automake release, Autoconf can make the AC_INIT 514# arguments mandatory, and then we can depend on a new Autoconf 515# release and drop the old call support. 516AC_DEFUN([AM_INIT_AUTOMAKE], 517[AC_PREREQ([2.65])dnl 518dnl Autoconf wants to disallow AM_ names. We explicitly allow 519dnl the ones we care about. 520m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl 521AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl 522AC_REQUIRE([AC_PROG_INSTALL])dnl 523if test "`cd $srcdir && pwd`" != "`pwd`"; then 524 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output 525 # is not polluted with repeated "-I." 526 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl 527 # test to see if srcdir already configured 528 if test -f $srcdir/config.status; then 529 AC_MSG_ERROR([source directory already configured; run "make distclean" there first]) 530 fi 531fi 532 533# test whether we have cygpath 534if test -z "$CYGPATH_W"; then 535 if (cygpath --version) >/dev/null 2>/dev/null; then 536 CYGPATH_W='cygpath -w' 537 else 538 CYGPATH_W=echo 539 fi 540fi 541AC_SUBST([CYGPATH_W]) 542 543# Define the identity of the package. 544dnl Distinguish between old-style and new-style calls. 545m4_ifval([$2], 546[AC_DIAGNOSE([obsolete], 547 [$0: two- and three-arguments forms are deprecated.]) 548m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl 549 AC_SUBST([PACKAGE], [$1])dnl 550 AC_SUBST([VERSION], [$2])], 551[_AM_SET_OPTIONS([$1])dnl 552dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT. 553m4_if( 554 m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]), 555 [ok:ok],, 556 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl 557 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl 558 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl 559 560_AM_IF_OPTION([no-define],, 561[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package]) 562 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl 563 564# Some tools Automake needs. 565AC_REQUIRE([AM_SANITY_CHECK])dnl 566AC_REQUIRE([AC_ARG_PROGRAM])dnl 567AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}]) 568AM_MISSING_PROG([AUTOCONF], [autoconf]) 569AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}]) 570AM_MISSING_PROG([AUTOHEADER], [autoheader]) 571AM_MISSING_PROG([MAKEINFO], [makeinfo]) 572AC_REQUIRE([AM_PROG_INSTALL_SH])dnl 573AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl 574AC_REQUIRE([AC_PROG_MKDIR_P])dnl 575# For better backward compatibility. To be removed once Automake 1.9.x 576# dies out for good. For more background, see: 577# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html> 578# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html> 579AC_SUBST([mkdir_p], ['$(MKDIR_P)']) 580# We need awk for the "check" target (and possibly the TAP driver). The 581# system "awk" is bad on some platforms. 582AC_REQUIRE([AC_PROG_AWK])dnl 583AC_REQUIRE([AC_PROG_MAKE_SET])dnl 584AC_REQUIRE([AM_SET_LEADING_DOT])dnl 585_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])], 586 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])], 587 [_AM_PROG_TAR([v7])])]) 588_AM_IF_OPTION([no-dependencies],, 589[AC_PROVIDE_IFELSE([AC_PROG_CC], 590 [_AM_DEPENDENCIES([CC])], 591 [m4_define([AC_PROG_CC], 592 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl 593AC_PROVIDE_IFELSE([AC_PROG_CXX], 594 [_AM_DEPENDENCIES([CXX])], 595 [m4_define([AC_PROG_CXX], 596 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl 597AC_PROVIDE_IFELSE([AC_PROG_OBJC], 598 [_AM_DEPENDENCIES([OBJC])], 599 [m4_define([AC_PROG_OBJC], 600 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl 601AC_PROVIDE_IFELSE([AC_PROG_OBJCXX], 602 [_AM_DEPENDENCIES([OBJCXX])], 603 [m4_define([AC_PROG_OBJCXX], 604 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl 605]) 606AC_REQUIRE([AM_SILENT_RULES])dnl 607dnl The testsuite driver may need to know about EXEEXT, so add the 608dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This 609dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below. 610AC_CONFIG_COMMANDS_PRE(dnl 611[m4_provide_if([_AM_COMPILER_EXEEXT], 612 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl 613 614# POSIX will say in a future version that running "rm -f" with no argument 615# is OK; and we want to be able to make that assumption in our Makefile 616# recipes. So use an aggressive probe to check that the usage we want is 617# actually supported "in the wild" to an acceptable degree. 618# See automake bug#10828. 619# To make any issue more visible, cause the running configure to be aborted 620# by default if the 'rm' program in use doesn't match our expectations; the 621# user can still override this though. 622if rm -f && rm -fr && rm -rf; then : OK; else 623 cat >&2 <<'END' 624Oops! 625 626Your 'rm' program seems unable to run without file operands specified 627on the command line, even when the '-f' option is present. This is contrary 628to the behaviour of most rm programs out there, and not conforming with 629the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542> 630 631Please tell bug-automake@gnu.org about your system, including the value 632of your $PATH and any error possibly output before this message. This 633can help us improve future automake versions. 634 635END 636 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then 637 echo 'Configuration will proceed anyway, since you have set the' >&2 638 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2 639 echo >&2 640 else 641 cat >&2 <<'END' 642Aborting the configuration process, to ensure you take notice of the issue. 643 644You can download and install GNU coreutils to get an 'rm' implementation 645that behaves properly: <https://www.gnu.org/software/coreutils/>. 646 647If you want to complete the configuration process using your problematic 648'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM 649to "yes", and re-run configure. 650 651END 652 AC_MSG_ERROR([Your 'rm' program is bad, sorry.]) 653 fi 654fi 655dnl The trailing newline in this macro's definition is deliberate, for 656dnl backward compatibility and to allow trailing 'dnl'-style comments 657dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841. 658]) 659 660dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not 661dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further 662dnl mangled by Autoconf and run in a shell conditional statement. 663m4_define([_AC_COMPILER_EXEEXT], 664m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])]) 665 666# When config.status generates a header, we must update the stamp-h file. 667# This file resides in the same directory as the config header 668# that is generated. The stamp files are numbered to have different names. 669 670# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the 671# loop where config.status creates the headers, so we can generate 672# our stamp files there. 673AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK], 674[# Compute $1's index in $config_headers. 675_am_arg=$1 676_am_stamp_count=1 677for _am_header in $config_headers :; do 678 case $_am_header in 679 $_am_arg | $_am_arg:* ) 680 break ;; 681 * ) 682 _am_stamp_count=`expr $_am_stamp_count + 1` ;; 683 esac 684done 685echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count]) 686 687# Copyright (C) 2001-2020 Free Software Foundation, Inc. 688# 689# This file is free software; the Free Software Foundation 690# gives unlimited permission to copy and/or distribute it, 691# with or without modifications, as long as this notice is preserved. 692 693# AM_PROG_INSTALL_SH 694# ------------------ 695# Define $install_sh. 696AC_DEFUN([AM_PROG_INSTALL_SH], 697[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl 698if test x"${install_sh+set}" != xset; then 699 case $am_aux_dir in 700 *\ * | *\ *) 701 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;; 702 *) 703 install_sh="\${SHELL} $am_aux_dir/install-sh" 704 esac 705fi 706AC_SUBST([install_sh])]) 707 708# Copyright (C) 2003-2020 Free Software Foundation, Inc. 709# 710# This file is free software; the Free Software Foundation 711# gives unlimited permission to copy and/or distribute it, 712# with or without modifications, as long as this notice is preserved. 713 714# Check whether the underlying file-system supports filenames 715# with a leading dot. For instance MS-DOS doesn't. 716AC_DEFUN([AM_SET_LEADING_DOT], 717[rm -rf .tst 2>/dev/null 718mkdir .tst 2>/dev/null 719if test -d .tst; then 720 am__leading_dot=. 721else 722 am__leading_dot=_ 723fi 724rmdir .tst 2>/dev/null 725AC_SUBST([am__leading_dot])]) 726 727# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*- 728 729# Copyright (C) 1997-2020 Free Software Foundation, Inc. 730# 731# This file is free software; the Free Software Foundation 732# gives unlimited permission to copy and/or distribute it, 733# with or without modifications, as long as this notice is preserved. 734 735# AM_MISSING_PROG(NAME, PROGRAM) 736# ------------------------------ 737AC_DEFUN([AM_MISSING_PROG], 738[AC_REQUIRE([AM_MISSING_HAS_RUN]) 739$1=${$1-"${am_missing_run}$2"} 740AC_SUBST($1)]) 741 742# AM_MISSING_HAS_RUN 743# ------------------ 744# Define MISSING if not defined so far and test if it is modern enough. 745# If it is, set am_missing_run to use it, otherwise, to nothing. 746AC_DEFUN([AM_MISSING_HAS_RUN], 747[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl 748AC_REQUIRE_AUX_FILE([missing])dnl 749if test x"${MISSING+set}" != xset; then 750 case $am_aux_dir in 751 *\ * | *\ *) 752 MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;; 753 *) 754 MISSING="\${SHELL} $am_aux_dir/missing" ;; 755 esac 756fi 757# Use eval to expand $SHELL 758if eval "$MISSING --is-lightweight"; then 759 am_missing_run="$MISSING " 760else 761 am_missing_run= 762 AC_MSG_WARN(['missing' script is too old or missing]) 763fi 764]) 765 766# Helper functions for option handling. -*- Autoconf -*- 767 768# Copyright (C) 2001-2020 Free Software Foundation, Inc. 769# 770# This file is free software; the Free Software Foundation 771# gives unlimited permission to copy and/or distribute it, 772# with or without modifications, as long as this notice is preserved. 773 774# _AM_MANGLE_OPTION(NAME) 775# ----------------------- 776AC_DEFUN([_AM_MANGLE_OPTION], 777[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])]) 778 779# _AM_SET_OPTION(NAME) 780# -------------------- 781# Set option NAME. Presently that only means defining a flag for this option. 782AC_DEFUN([_AM_SET_OPTION], 783[m4_define(_AM_MANGLE_OPTION([$1]), [1])]) 784 785# _AM_SET_OPTIONS(OPTIONS) 786# ------------------------ 787# OPTIONS is a space-separated list of Automake options. 788AC_DEFUN([_AM_SET_OPTIONS], 789[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])]) 790 791# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET]) 792# ------------------------------------------- 793# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. 794AC_DEFUN([_AM_IF_OPTION], 795[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])]) 796 797# Copyright (C) 2001-2020 Free Software Foundation, Inc. 798# 799# This file is free software; the Free Software Foundation 800# gives unlimited permission to copy and/or distribute it, 801# with or without modifications, as long as this notice is preserved. 802 803# AM_RUN_LOG(COMMAND) 804# ------------------- 805# Run COMMAND, save the exit status in ac_status, and log it. 806# (This has been adapted from Autoconf's _AC_RUN_LOG macro.) 807AC_DEFUN([AM_RUN_LOG], 808[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD 809 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD 810 ac_status=$? 811 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD 812 (exit $ac_status); }]) 813 814# Check to make sure that the build environment is sane. -*- Autoconf -*- 815 816# Copyright (C) 1996-2020 Free Software Foundation, Inc. 817# 818# This file is free software; the Free Software Foundation 819# gives unlimited permission to copy and/or distribute it, 820# with or without modifications, as long as this notice is preserved. 821 822# AM_SANITY_CHECK 823# --------------- 824AC_DEFUN([AM_SANITY_CHECK], 825[AC_MSG_CHECKING([whether build environment is sane]) 826# Reject unsafe characters in $srcdir or the absolute working directory 827# name. Accept space and tab only in the latter. 828am_lf=' 829' 830case `pwd` in 831 *[[\\\"\#\$\&\'\`$am_lf]]*) 832 AC_MSG_ERROR([unsafe absolute working directory name]);; 833esac 834case $srcdir in 835 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*) 836 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);; 837esac 838 839# Do 'set' in a subshell so we don't clobber the current shell's 840# arguments. Must try -L first in case configure is actually a 841# symlink; some systems play weird games with the mod time of symlinks 842# (eg FreeBSD returns the mod time of the symlink's containing 843# directory). 844if ( 845 am_has_slept=no 846 for am_try in 1 2; do 847 echo "timestamp, slept: $am_has_slept" > conftest.file 848 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` 849 if test "$[*]" = "X"; then 850 # -L didn't work. 851 set X `ls -t "$srcdir/configure" conftest.file` 852 fi 853 if test "$[*]" != "X $srcdir/configure conftest.file" \ 854 && test "$[*]" != "X conftest.file $srcdir/configure"; then 855 856 # If neither matched, then we have a broken ls. This can happen 857 # if, for instance, CONFIG_SHELL is bash and it inherits a 858 # broken ls alias from the environment. This has actually 859 # happened. Such a system could not be considered "sane". 860 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken 861 alias in your environment]) 862 fi 863 if test "$[2]" = conftest.file || test $am_try -eq 2; then 864 break 865 fi 866 # Just in case. 867 sleep 1 868 am_has_slept=yes 869 done 870 test "$[2]" = conftest.file 871 ) 872then 873 # Ok. 874 : 875else 876 AC_MSG_ERROR([newly created file is older than distributed files! 877Check your system clock]) 878fi 879AC_MSG_RESULT([yes]) 880# If we didn't sleep, we still need to ensure time stamps of config.status and 881# generated files are strictly newer. 882am_sleep_pid= 883if grep 'slept: no' conftest.file >/dev/null 2>&1; then 884 ( sleep 1 ) & 885 am_sleep_pid=$! 886fi 887AC_CONFIG_COMMANDS_PRE( 888 [AC_MSG_CHECKING([that generated files are newer than configure]) 889 if test -n "$am_sleep_pid"; then 890 # Hide warnings about reused PIDs. 891 wait $am_sleep_pid 2>/dev/null 892 fi 893 AC_MSG_RESULT([done])]) 894rm -f conftest.file 895]) 896 897# Copyright (C) 2009-2020 Free Software Foundation, Inc. 898# 899# This file is free software; the Free Software Foundation 900# gives unlimited permission to copy and/or distribute it, 901# with or without modifications, as long as this notice is preserved. 902 903# AM_SILENT_RULES([DEFAULT]) 904# -------------------------- 905# Enable less verbose build rules; with the default set to DEFAULT 906# ("yes" being less verbose, "no" or empty being verbose). 907AC_DEFUN([AM_SILENT_RULES], 908[AC_ARG_ENABLE([silent-rules], [dnl 909AS_HELP_STRING( 910 [--enable-silent-rules], 911 [less verbose build output (undo: "make V=1")]) 912AS_HELP_STRING( 913 [--disable-silent-rules], 914 [verbose build output (undo: "make V=0")])dnl 915]) 916case $enable_silent_rules in @%:@ ((( 917 yes) AM_DEFAULT_VERBOSITY=0;; 918 no) AM_DEFAULT_VERBOSITY=1;; 919 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);; 920esac 921dnl 922dnl A few 'make' implementations (e.g., NonStop OS and NextStep) 923dnl do not support nested variable expansions. 924dnl See automake bug#9928 and bug#10237. 925am_make=${MAKE-make} 926AC_CACHE_CHECK([whether $am_make supports nested variables], 927 [am_cv_make_support_nested_variables], 928 [if AS_ECHO([['TRUE=$(BAR$(V)) 929BAR0=false 930BAR1=true 931V=1 932am__doit: 933 @$(TRUE) 934.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then 935 am_cv_make_support_nested_variables=yes 936else 937 am_cv_make_support_nested_variables=no 938fi]) 939if test $am_cv_make_support_nested_variables = yes; then 940 dnl Using '$V' instead of '$(V)' breaks IRIX make. 941 AM_V='$(V)' 942 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' 943else 944 AM_V=$AM_DEFAULT_VERBOSITY 945 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY 946fi 947AC_SUBST([AM_V])dnl 948AM_SUBST_NOTMAKE([AM_V])dnl 949AC_SUBST([AM_DEFAULT_V])dnl 950AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl 951AC_SUBST([AM_DEFAULT_VERBOSITY])dnl 952AM_BACKSLASH='\' 953AC_SUBST([AM_BACKSLASH])dnl 954_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl 955]) 956 957# Copyright (C) 2001-2020 Free Software Foundation, Inc. 958# 959# This file is free software; the Free Software Foundation 960# gives unlimited permission to copy and/or distribute it, 961# with or without modifications, as long as this notice is preserved. 962 963# AM_PROG_INSTALL_STRIP 964# --------------------- 965# One issue with vendor 'install' (even GNU) is that you can't 966# specify the program used to strip binaries. This is especially 967# annoying in cross-compiling environments, where the build's strip 968# is unlikely to handle the host's binaries. 969# Fortunately install-sh will honor a STRIPPROG variable, so we 970# always use install-sh in "make install-strip", and initialize 971# STRIPPROG with the value of the STRIP variable (set by the user). 972AC_DEFUN([AM_PROG_INSTALL_STRIP], 973[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl 974# Installed binaries are usually stripped using 'strip' when the user 975# run "make install-strip". However 'strip' might not be the right 976# tool to use in cross-compilation environments, therefore Automake 977# will honor the 'STRIP' environment variable to overrule this program. 978dnl Don't test for $cross_compiling = yes, because it might be 'maybe'. 979if test "$cross_compiling" != no; then 980 AC_CHECK_TOOL([STRIP], [strip], :) 981fi 982INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" 983AC_SUBST([INSTALL_STRIP_PROGRAM])]) 984 985# Copyright (C) 2006-2020 Free Software Foundation, Inc. 986# 987# This file is free software; the Free Software Foundation 988# gives unlimited permission to copy and/or distribute it, 989# with or without modifications, as long as this notice is preserved. 990 991# _AM_SUBST_NOTMAKE(VARIABLE) 992# --------------------------- 993# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in. 994# This macro is traced by Automake. 995AC_DEFUN([_AM_SUBST_NOTMAKE]) 996 997# AM_SUBST_NOTMAKE(VARIABLE) 998# -------------------------- 999# Public sister of _AM_SUBST_NOTMAKE. 1000AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)]) 1001 1002# Check how to create a tarball. -*- Autoconf -*- 1003 1004# Copyright (C) 2004-2020 Free Software Foundation, Inc. 1005# 1006# This file is free software; the Free Software Foundation 1007# gives unlimited permission to copy and/or distribute it, 1008# with or without modifications, as long as this notice is preserved. 1009 1010# _AM_PROG_TAR(FORMAT) 1011# -------------------- 1012# Check how to create a tarball in format FORMAT. 1013# FORMAT should be one of 'v7', 'ustar', or 'pax'. 1014# 1015# Substitute a variable $(am__tar) that is a command 1016# writing to stdout a FORMAT-tarball containing the directory 1017# $tardir. 1018# tardir=directory && $(am__tar) > result.tar 1019# 1020# Substitute a variable $(am__untar) that extract such 1021# a tarball read from stdin. 1022# $(am__untar) < result.tar 1023# 1024AC_DEFUN([_AM_PROG_TAR], 1025[# Always define AMTAR for backward compatibility. Yes, it's still used 1026# in the wild :-( We should find a proper way to deprecate it ... 1027AC_SUBST([AMTAR], ['$${TAR-tar}']) 1028 1029# We'll loop over all known methods to create a tar archive until one works. 1030_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 1031 1032m4_if([$1], [v7], 1033 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], 1034 1035 [m4_case([$1], 1036 [ustar], 1037 [# The POSIX 1988 'ustar' format is defined with fixed-size fields. 1038 # There is notably a 21 bits limit for the UID and the GID. In fact, 1039 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 1040 # and bug#13588). 1041 am_max_uid=2097151 # 2^21 - 1 1042 am_max_gid=$am_max_uid 1043 # The $UID and $GID variables are not portable, so we need to resort 1044 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls 1045 # below are definitely unexpected, so allow the users to see them 1046 # (that is, avoid stderr redirection). 1047 am_uid=`id -u || echo unknown` 1048 am_gid=`id -g || echo unknown` 1049 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) 1050 if test $am_uid -le $am_max_uid; then 1051 AC_MSG_RESULT([yes]) 1052 else 1053 AC_MSG_RESULT([no]) 1054 _am_tools=none 1055 fi 1056 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) 1057 if test $am_gid -le $am_max_gid; then 1058 AC_MSG_RESULT([yes]) 1059 else 1060 AC_MSG_RESULT([no]) 1061 _am_tools=none 1062 fi], 1063 1064 [pax], 1065 [], 1066 1067 [m4_fatal([Unknown tar format])]) 1068 1069 AC_MSG_CHECKING([how to create a $1 tar archive]) 1070 1071 # Go ahead even if we have the value already cached. We do so because we 1072 # need to set the values for the 'am__tar' and 'am__untar' variables. 1073 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 1074 1075 for _am_tool in $_am_tools; do 1076 case $_am_tool in 1077 gnutar) 1078 for _am_tar in tar gnutar gtar; do 1079 AM_RUN_LOG([$_am_tar --version]) && break 1080 done 1081 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 1082 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 1083 am__untar="$_am_tar -xf -" 1084 ;; 1085 plaintar) 1086 # Must skip GNU tar: if it does not support --format= it doesn't create 1087 # ustar tarball either. 1088 (tar --version) >/dev/null 2>&1 && continue 1089 am__tar='tar chf - "$$tardir"' 1090 am__tar_='tar chf - "$tardir"' 1091 am__untar='tar xf -' 1092 ;; 1093 pax) 1094 am__tar='pax -L -x $1 -w "$$tardir"' 1095 am__tar_='pax -L -x $1 -w "$tardir"' 1096 am__untar='pax -r' 1097 ;; 1098 cpio) 1099 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 1100 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 1101 am__untar='cpio -i -H $1 -d' 1102 ;; 1103 none) 1104 am__tar=false 1105 am__tar_=false 1106 am__untar=false 1107 ;; 1108 esac 1109 1110 # If the value was cached, stop now. We just wanted to have am__tar 1111 # and am__untar set. 1112 test -n "${am_cv_prog_tar_$1}" && break 1113 1114 # tar/untar a dummy directory, and stop if the command works. 1115 rm -rf conftest.dir 1116 mkdir conftest.dir 1117 echo GrepMe > conftest.dir/file 1118 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 1119 rm -rf conftest.dir 1120 if test -s conftest.tar; then 1121 AM_RUN_LOG([$am__untar <conftest.tar]) 1122 AM_RUN_LOG([cat conftest.dir/file]) 1123 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 1124 fi 1125 done 1126 rm -rf conftest.dir 1127 1128 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) 1129 AC_MSG_RESULT([$am_cv_prog_tar_$1])]) 1130 1131AC_SUBST([am__tar]) 1132AC_SUBST([am__untar]) 1133]) # _AM_PROG_TAR 1134 1135