1# generated automatically by aclocal 1.16.1 -*- Autoconf -*- 2 3# Copyright (C) 1996-2018 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 23dnl pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- 24dnl serial 11 (pkg-config-0.29.1) 25dnl 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 298 299# Copyright (C) 2002-2018 Free Software Foundation, Inc. 300# 301# This file is free software; the Free Software Foundation 302# gives unlimited permission to copy and/or distribute it, 303# with or without modifications, as long as this notice is preserved. 304 305# AM_AUTOMAKE_VERSION(VERSION) 306# ---------------------------- 307# Automake X.Y traces this macro to ensure aclocal.m4 has been 308# generated from the m4 files accompanying Automake X.Y. 309# (This private macro should not be called outside this file.) 310AC_DEFUN([AM_AUTOMAKE_VERSION], 311[am__api_version='1.16' 312dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to 313dnl require some minimum version. 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Must try -L first in case configure is actually a 1178# symlink; some systems play weird games with the mod time of symlinks 1179# (eg FreeBSD returns the mod time of the symlink's containing 1180# directory). 1181if ( 1182 am_has_slept=no 1183 for am_try in 1 2; do 1184 echo "timestamp, slept: $am_has_slept" > conftest.file 1185 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` 1186 if test "$[*]" = "X"; then 1187 # -L didn't work. 1188 set X `ls -t "$srcdir/configure" conftest.file` 1189 fi 1190 if test "$[*]" != "X $srcdir/configure conftest.file" \ 1191 && test "$[*]" != "X conftest.file $srcdir/configure"; then 1192 1193 # If neither matched, then we have a broken ls. This can happen 1194 # if, for instance, CONFIG_SHELL is bash and it inherits a 1195 # broken ls alias from the environment. This has actually 1196 # happened. Such a system could not be considered "sane". 1197 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken 1198 alias in your environment]) 1199 fi 1200 if test "$[2]" = conftest.file || test $am_try -eq 2; then 1201 break 1202 fi 1203 # Just in case. 1204 sleep 1 1205 am_has_slept=yes 1206 done 1207 test "$[2]" = conftest.file 1208 ) 1209then 1210 # Ok. 1211 : 1212else 1213 AC_MSG_ERROR([newly created file is older than distributed files! 1214Check your system clock]) 1215fi 1216AC_MSG_RESULT([yes]) 1217# If we didn't sleep, we still need to ensure time stamps of config.status and 1218# generated files are strictly newer. 1219am_sleep_pid= 1220if grep 'slept: no' conftest.file >/dev/null 2>&1; then 1221 ( sleep 1 ) & 1222 am_sleep_pid=$! 1223fi 1224AC_CONFIG_COMMANDS_PRE( 1225 [AC_MSG_CHECKING([that generated files are newer than configure]) 1226 if test -n "$am_sleep_pid"; then 1227 # Hide warnings about reused PIDs. 1228 wait $am_sleep_pid 2>/dev/null 1229 fi 1230 AC_MSG_RESULT([done])]) 1231rm -f conftest.file 1232]) 1233 1234# Copyright (C) 2009-2018 Free Software Foundation, Inc. 1235# 1236# This file is free software; the Free Software Foundation 1237# gives unlimited permission to copy and/or distribute it, 1238# with or without modifications, as long as this notice is preserved. 1239 1240# AM_SILENT_RULES([DEFAULT]) 1241# -------------------------- 1242# Enable less verbose build rules; with the default set to DEFAULT 1243# ("yes" being less verbose, "no" or empty being verbose). 1244AC_DEFUN([AM_SILENT_RULES], 1245[AC_ARG_ENABLE([silent-rules], [dnl 1246AS_HELP_STRING( 1247 [--enable-silent-rules], 1248 [less verbose build output (undo: "make V=1")]) 1249AS_HELP_STRING( 1250 [--disable-silent-rules], 1251 [verbose build output (undo: "make V=0")])dnl 1252]) 1253case $enable_silent_rules in @%:@ ((( 1254 yes) AM_DEFAULT_VERBOSITY=0;; 1255 no) AM_DEFAULT_VERBOSITY=1;; 1256 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);; 1257esac 1258dnl 1259dnl A few 'make' implementations (e.g., NonStop OS and NextStep) 1260dnl do not support nested variable expansions. 1261dnl See automake bug#9928 and bug#10237. 1262am_make=${MAKE-make} 1263AC_CACHE_CHECK([whether $am_make supports nested variables], 1264 [am_cv_make_support_nested_variables], 1265 [if AS_ECHO([['TRUE=$(BAR$(V)) 1266BAR0=false 1267BAR1=true 1268V=1 1269am__doit: 1270 @$(TRUE) 1271.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then 1272 am_cv_make_support_nested_variables=yes 1273else 1274 am_cv_make_support_nested_variables=no 1275fi]) 1276if test $am_cv_make_support_nested_variables = yes; then 1277 dnl Using '$V' instead of '$(V)' breaks IRIX make. 1278 AM_V='$(V)' 1279 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' 1280else 1281 AM_V=$AM_DEFAULT_VERBOSITY 1282 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY 1283fi 1284AC_SUBST([AM_V])dnl 1285AM_SUBST_NOTMAKE([AM_V])dnl 1286AC_SUBST([AM_DEFAULT_V])dnl 1287AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl 1288AC_SUBST([AM_DEFAULT_VERBOSITY])dnl 1289AM_BACKSLASH='\' 1290AC_SUBST([AM_BACKSLASH])dnl 1291_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl 1292]) 1293 1294# Copyright (C) 2001-2018 Free Software Foundation, Inc. 1295# 1296# This file is free software; the Free Software Foundation 1297# gives unlimited permission to copy and/or distribute it, 1298# with or without modifications, as long as this notice is preserved. 1299 1300# AM_PROG_INSTALL_STRIP 1301# --------------------- 1302# One issue with vendor 'install' (even GNU) is that you can't 1303# specify the program used to strip binaries. This is especially 1304# annoying in cross-compiling environments, where the build's strip 1305# is unlikely to handle the host's binaries. 1306# Fortunately install-sh will honor a STRIPPROG variable, so we 1307# always use install-sh in "make install-strip", and initialize 1308# STRIPPROG with the value of the STRIP variable (set by the user). 1309AC_DEFUN([AM_PROG_INSTALL_STRIP], 1310[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl 1311# Installed binaries are usually stripped using 'strip' when the user 1312# run "make install-strip". However 'strip' might not be the right 1313# tool to use in cross-compilation environments, therefore Automake 1314# will honor the 'STRIP' environment variable to overrule this program. 1315dnl Don't test for $cross_compiling = yes, because it might be 'maybe'. 1316if test "$cross_compiling" != no; then 1317 AC_CHECK_TOOL([STRIP], [strip], :) 1318fi 1319INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" 1320AC_SUBST([INSTALL_STRIP_PROGRAM])]) 1321 1322# Copyright (C) 2006-2018 Free Software Foundation, Inc. 1323# 1324# This file is free software; the Free Software Foundation 1325# gives unlimited permission to copy and/or distribute it, 1326# with or without modifications, as long as this notice is preserved. 1327 1328# _AM_SUBST_NOTMAKE(VARIABLE) 1329# --------------------------- 1330# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in. 1331# This macro is traced by Automake. 1332AC_DEFUN([_AM_SUBST_NOTMAKE]) 1333 1334# AM_SUBST_NOTMAKE(VARIABLE) 1335# -------------------------- 1336# Public sister of _AM_SUBST_NOTMAKE. 1337AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)]) 1338 1339# Check how to create a tarball. -*- Autoconf -*- 1340 1341# Copyright (C) 2004-2018 Free Software Foundation, Inc. 1342# 1343# This file is free software; the Free Software Foundation 1344# gives unlimited permission to copy and/or distribute it, 1345# with or without modifications, as long as this notice is preserved. 1346 1347# _AM_PROG_TAR(FORMAT) 1348# -------------------- 1349# Check how to create a tarball in format FORMAT. 1350# FORMAT should be one of 'v7', 'ustar', or 'pax'. 1351# 1352# Substitute a variable $(am__tar) that is a command 1353# writing to stdout a FORMAT-tarball containing the directory 1354# $tardir. 1355# tardir=directory && $(am__tar) > result.tar 1356# 1357# Substitute a variable $(am__untar) that extract such 1358# a tarball read from stdin. 1359# $(am__untar) < result.tar 1360# 1361AC_DEFUN([_AM_PROG_TAR], 1362[# Always define AMTAR for backward compatibility. Yes, it's still used 1363# in the wild :-( We should find a proper way to deprecate it ... 1364AC_SUBST([AMTAR], ['$${TAR-tar}']) 1365 1366# We'll loop over all known methods to create a tar archive until one works. 1367_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 1368 1369m4_if([$1], [v7], 1370 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], 1371 1372 [m4_case([$1], 1373 [ustar], 1374 [# The POSIX 1988 'ustar' format is defined with fixed-size fields. 1375 # There is notably a 21 bits limit for the UID and the GID. In fact, 1376 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 1377 # and bug#13588). 1378 am_max_uid=2097151 # 2^21 - 1 1379 am_max_gid=$am_max_uid 1380 # The $UID and $GID variables are not portable, so we need to resort 1381 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls 1382 # below are definitely unexpected, so allow the users to see them 1383 # (that is, avoid stderr redirection). 1384 am_uid=`id -u || echo unknown` 1385 am_gid=`id -g || echo unknown` 1386 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) 1387 if test $am_uid -le $am_max_uid; then 1388 AC_MSG_RESULT([yes]) 1389 else 1390 AC_MSG_RESULT([no]) 1391 _am_tools=none 1392 fi 1393 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) 1394 if test $am_gid -le $am_max_gid; then 1395 AC_MSG_RESULT([yes]) 1396 else 1397 AC_MSG_RESULT([no]) 1398 _am_tools=none 1399 fi], 1400 1401 [pax], 1402 [], 1403 1404 [m4_fatal([Unknown tar format])]) 1405 1406 AC_MSG_CHECKING([how to create a $1 tar archive]) 1407 1408 # Go ahead even if we have the value already cached. We do so because we 1409 # need to set the values for the 'am__tar' and 'am__untar' variables. 1410 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 1411 1412 for _am_tool in $_am_tools; do 1413 case $_am_tool in 1414 gnutar) 1415 for _am_tar in tar gnutar gtar; do 1416 AM_RUN_LOG([$_am_tar --version]) && break 1417 done 1418 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 1419 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 1420 am__untar="$_am_tar -xf -" 1421 ;; 1422 plaintar) 1423 # Must skip GNU tar: if it does not support --format= it doesn't create 1424 # ustar tarball either. 1425 (tar --version) >/dev/null 2>&1 && continue 1426 am__tar='tar chf - "$$tardir"' 1427 am__tar_='tar chf - "$tardir"' 1428 am__untar='tar xf -' 1429 ;; 1430 pax) 1431 am__tar='pax -L -x $1 -w "$$tardir"' 1432 am__tar_='pax -L -x $1 -w "$tardir"' 1433 am__untar='pax -r' 1434 ;; 1435 cpio) 1436 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 1437 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 1438 am__untar='cpio -i -H $1 -d' 1439 ;; 1440 none) 1441 am__tar=false 1442 am__tar_=false 1443 am__untar=false 1444 ;; 1445 esac 1446 1447 # If the value was cached, stop now. We just wanted to have am__tar 1448 # and am__untar set. 1449 test -n "${am_cv_prog_tar_$1}" && break 1450 1451 # tar/untar a dummy directory, and stop if the command works. 1452 rm -rf conftest.dir 1453 mkdir conftest.dir 1454 echo GrepMe > conftest.dir/file 1455 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 1456 rm -rf conftest.dir 1457 if test -s conftest.tar; then 1458 AM_RUN_LOG([$am__untar <conftest.tar]) 1459 AM_RUN_LOG([cat conftest.dir/file]) 1460 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 1461 fi 1462 done 1463 rm -rf conftest.dir 1464 1465 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) 1466 AC_MSG_RESULT([$am_cv_prog_tar_$1])]) 1467 1468AC_SUBST([am__tar]) 1469AC_SUBST([am__untar]) 1470]) # _AM_PROG_TAR 1471 1472m4_include([m4/libtool.m4]) 1473m4_include([m4/ltoptions.m4]) 1474m4_include([m4/ltsugar.m4]) 1475m4_include([m4/ltversion.m4]) 1476m4_include([m4/lt~obsolete.m4]) 1477m4_include([m4/m4_ax_prog_cc_for_build.m4]) 1478