1 # generated automatically by aclocal 1.15 -*- Autoconf -*- 2 3 # Copyright (C) 1996-2014 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 m4_ifndef([AC_AUTOCONF_VERSION], 16 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl 17 m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],, 18 [m4_warning([this file was generated for autoconf 2.69. 19 You have another version of autoconf. It may work, but is not guaranteed to. 20 If you have problems, you may need to regenerate the build system entirely. 21 To do so, use the procedure documented by the package, typically 'autoreconf'.])]) 22 23 dnl pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- 24 dnl serial 11 (pkg-config-0.29.1) 25 dnl 26 dnl Copyright 2004 Scott James Remnant <scott (a] netsplit.com>. 27 dnl Copyright 2012-2015 Dan Nicholson <dbn.lists (a] gmail.com> 28 dnl 29 dnl This program is free software; you can redistribute it and/or modify 30 dnl it under the terms of the GNU General Public License as published by 31 dnl the Free Software Foundation; either version 2 of the License, or 32 dnl (at your option) any later version. 33 dnl 34 dnl This program is distributed in the hope that it will be useful, but 35 dnl WITHOUT ANY WARRANTY; without even the implied warranty of 36 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 37 dnl General Public License for more details. 38 dnl 39 dnl You should have received a copy of the GNU General Public License 40 dnl along with this program; if not, write to the Free Software 41 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 42 dnl 02111-1307, USA. 43 dnl 44 dnl As a special exception to the GNU General Public License, if you 45 dnl distribute this file as part of a program that contains a 46 dnl configuration script generated by Autoconf, you may include it under 47 dnl the same distribution terms that you use for the rest of that 48 dnl program. 49 50 dnl PKG_PREREQ(MIN-VERSION) 51 dnl ----------------------- 52 dnl Since: 0.29 53 dnl 54 dnl Verify that the version of the pkg-config macros are at least 55 dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's 56 dnl installed version of pkg-config, this checks the developer's version 57 dnl of pkg.m4 when generating configure. 58 dnl 59 dnl To ensure that this macro is defined, also add: 60 dnl m4_ifndef([PKG_PREREQ], 61 dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) 62 dnl 63 dnl See the "Since" comment for each macro you use to see what version 64 dnl of the macros you require. 65 m4_defun([PKG_PREREQ], 66 [m4_define([PKG_MACROS_VERSION], [0.29.1]) 67 m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, 68 [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) 69 ])dnl PKG_PREREQ 70 71 dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) 72 dnl ---------------------------------- 73 dnl Since: 0.16 74 dnl 75 dnl Search for the pkg-config tool and set the PKG_CONFIG variable to 76 dnl first found in the path. Checks that the version of pkg-config found 77 dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is 78 dnl used since that's the first version where most current features of 79 dnl pkg-config existed. 80 AC_DEFUN([PKG_PROG_PKG_CONFIG], 81 [m4_pattern_forbid([^_?PKG_[A-Z_]+$]) 82 m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) 83 m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) 84 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) 85 AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) 86 AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) 87 88 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then 89 AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) 90 fi 91 if test -n "$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 $_pkg_min_version; then 95 AC_MSG_RESULT([yes]) 96 else 97 AC_MSG_RESULT([no]) 98 PKG_CONFIG="" 99 fi 100 fi[]dnl 101 ])dnl PKG_PROG_PKG_CONFIG 102 103 dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 104 dnl ------------------------------------------------------------------- 105 dnl Since: 0.18 106 dnl 107 dnl Check to see whether a particular set of modules exists. Similar to 108 dnl PKG_CHECK_MODULES(), but does not set variables or print errors. 109 dnl 110 dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 111 dnl only at the first occurence in configure.ac, so if the first place 112 dnl it's called might be skipped (such as if it is within an "if", you 113 dnl have to call PKG_CHECK_EXISTS manually 114 AC_DEFUN([PKG_CHECK_EXISTS], 115 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 116 if test -n "$PKG_CONFIG" && \ 117 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then 118 m4_default([$2], [:]) 119 m4_ifvaln([$3], [else 120 $3])dnl 121 fi]) 122 123 dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) 124 dnl --------------------------------------------- 125 dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting 126 dnl pkg_failed based on the result. 127 m4_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 137 fi[]dnl 138 ])dnl _PKG_CONFIG 139 140 dnl _PKG_SHORT_ERRORS_SUPPORTED 141 dnl --------------------------- 142 dnl Internal check to see if pkg-config supports short errors. 143 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], 144 [AC_REQUIRE([PKG_PROG_PKG_CONFIG]) 145 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then 146 _pkg_short_errors_supported=yes 147 else 148 _pkg_short_errors_supported=no 149 fi[]dnl 150 ])dnl _PKG_SHORT_ERRORS_SUPPORTED 151 152 153 dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 154 dnl [ACTION-IF-NOT-FOUND]) 155 dnl -------------------------------------------------------------- 156 dnl Since: 0.4.0 157 dnl 158 dnl Note that if there is a possibility the first call to 159 dnl PKG_CHECK_MODULES might not happen, you should be sure to include an 160 dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac 161 AC_DEFUN([PKG_CHECK_MODULES], 162 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 163 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl 164 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl 165 166 pkg_failed=no 167 AC_MSG_CHECKING([for $1]) 168 169 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) 170 _PKG_CONFIG([$1][_LIBS], [libs], [$2]) 171 172 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS 173 and $1[]_LIBS to avoid the need to call pkg-config. 174 See the pkg-config man page for more details.]) 175 176 if 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 191 192 Consider adjusting the PKG_CONFIG_PATH environment variable if you 193 installed software in a non-standard prefix. 194 195 _PKG_TEXT])[]dnl 196 ]) 197 elif 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 201 is in your PATH or set the PKG_CONFIG environment variable to the full 202 path to pkg-config. 203 204 _PKG_TEXT 205 206 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl 207 ]) 208 else 209 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS 210 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS 211 AC_MSG_RESULT([yes]) 212 $3 213 fi[]dnl 214 ])dnl PKG_CHECK_MODULES 215 216 217 dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], 218 dnl [ACTION-IF-NOT-FOUND]) 219 dnl --------------------------------------------------------------------- 220 dnl Since: 0.29 221 dnl 222 dnl Checks for existence of MODULES and gathers its build flags with 223 dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags 224 dnl and VARIABLE-PREFIX_LIBS from --libs. 225 dnl 226 dnl Note that if there is a possibility the first call to 227 dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to 228 dnl include an explicit call to PKG_PROG_PKG_CONFIG in your 229 dnl configure.ac. 230 AC_DEFUN([PKG_CHECK_MODULES_STATIC], 231 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 232 _save_PKG_CONFIG=$PKG_CONFIG 233 PKG_CONFIG="$PKG_CONFIG --static" 234 PKG_CHECK_MODULES($@) 235 PKG_CONFIG=$_save_PKG_CONFIG[]dnl 236 ])dnl PKG_CHECK_MODULES_STATIC 237 238 239 dnl PKG_INSTALLDIR([DIRECTORY]) 240 dnl ------------------------- 241 dnl Since: 0.27 242 dnl 243 dnl Substitutes the variable pkgconfigdir as the location where a module 244 dnl should install pkg-config .pc files. By default the directory is 245 dnl $libdir/pkgconfig, but the default can be changed by passing 246 dnl DIRECTORY. The user can override through the --with-pkgconfigdir 247 dnl parameter. 248 AC_DEFUN([PKG_INSTALLDIR], 249 [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) 250 m4_pushdef([pkg_description], 251 [pkg-config installation directory @<:@]pkg_default[@:>@]) 252 AC_ARG_WITH([pkgconfigdir], 253 [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, 254 [with_pkgconfigdir=]pkg_default) 255 AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) 256 m4_popdef([pkg_default]) 257 m4_popdef([pkg_description]) 258 ])dnl PKG_INSTALLDIR 259 260 261 dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) 262 dnl -------------------------------- 263 dnl Since: 0.27 264 dnl 265 dnl Substitutes the variable noarch_pkgconfigdir as the location where a 266 dnl module should install arch-independent pkg-config .pc files. By 267 dnl default the directory is $datadir/pkgconfig, but the default can be 268 dnl changed by passing DIRECTORY. The user can override through the 269 dnl --with-noarch-pkgconfigdir parameter. 270 AC_DEFUN([PKG_NOARCH_INSTALLDIR], 271 [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) 272 m4_pushdef([pkg_description], 273 [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) 274 AC_ARG_WITH([noarch-pkgconfigdir], 275 [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, 276 [with_noarch_pkgconfigdir=]pkg_default) 277 AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) 278 m4_popdef([pkg_default]) 279 m4_popdef([pkg_description]) 280 ])dnl PKG_NOARCH_INSTALLDIR 281 282 283 dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, 284 dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) 285 dnl ------------------------------------------- 286 dnl Since: 0.28 287 dnl 288 dnl Retrieves the value of the pkg-config variable for the given module. 289 AC_DEFUN([PKG_CHECK_VAR], 290 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl 291 AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl 292 293 _PKG_CONFIG([$1], [variable="][$3]["], [$2]) 294 AS_VAR_COPY([$1], [pkg_cv_][$1]) 295 296 AS_VAR_IF([$1], [""], [$5], [$4])dnl 297 ])dnl PKG_CHECK_VAR 298 299 # Copyright (C) 2002-2014 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.) 310 AC_DEFUN([AM_AUTOMAKE_VERSION], 311 [am__api_version='1.15' 312 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to 313 dnl require some minimum version. 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Must try -L first in case configure is actually a 1195 # symlink; some systems play weird games with the mod time of symlinks 1196 # (eg FreeBSD returns the mod time of the symlink's containing 1197 # directory). 1198 if ( 1199 am_has_slept=no 1200 for am_try in 1 2; do 1201 echo "timestamp, slept: $am_has_slept" > conftest.file 1202 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` 1203 if test "$[*]" = "X"; then 1204 # -L didn't work. 1205 set X `ls -t "$srcdir/configure" conftest.file` 1206 fi 1207 if test "$[*]" != "X $srcdir/configure conftest.file" \ 1208 && test "$[*]" != "X conftest.file $srcdir/configure"; then 1209 1210 # If neither matched, then we have a broken ls. This can happen 1211 # if, for instance, CONFIG_SHELL is bash and it inherits a 1212 # broken ls alias from the environment. This has actually 1213 # happened. Such a system could not be considered "sane". 1214 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken 1215 alias in your environment]) 1216 fi 1217 if test "$[2]" = conftest.file || test $am_try -eq 2; then 1218 break 1219 fi 1220 # Just in case. 1221 sleep 1 1222 am_has_slept=yes 1223 done 1224 test "$[2]" = conftest.file 1225 ) 1226 then 1227 # Ok. 1228 : 1229 else 1230 AC_MSG_ERROR([newly created file is older than distributed files! 1231 Check your system clock]) 1232 fi 1233 AC_MSG_RESULT([yes]) 1234 # If we didn't sleep, we still need to ensure time stamps of config.status and 1235 # generated files are strictly newer. 1236 am_sleep_pid= 1237 if grep 'slept: no' conftest.file >/dev/null 2>&1; then 1238 ( sleep 1 ) & 1239 am_sleep_pid=$! 1240 fi 1241 AC_CONFIG_COMMANDS_PRE( 1242 [AC_MSG_CHECKING([that generated files are newer than configure]) 1243 if test -n "$am_sleep_pid"; then 1244 # Hide warnings about reused PIDs. 1245 wait $am_sleep_pid 2>/dev/null 1246 fi 1247 AC_MSG_RESULT([done])]) 1248 rm -f conftest.file 1249 ]) 1250 1251 # Copyright (C) 2009-2014 Free Software Foundation, Inc. 1252 # 1253 # This file is free software; the Free Software Foundation 1254 # gives unlimited permission to copy and/or distribute it, 1255 # with or without modifications, as long as this notice is preserved. 1256 1257 # AM_SILENT_RULES([DEFAULT]) 1258 # -------------------------- 1259 # Enable less verbose build rules; with the default set to DEFAULT 1260 # ("yes" being less verbose, "no" or empty being verbose). 1261 AC_DEFUN([AM_SILENT_RULES], 1262 [AC_ARG_ENABLE([silent-rules], [dnl 1263 AS_HELP_STRING( 1264 [--enable-silent-rules], 1265 [less verbose build output (undo: "make V=1")]) 1266 AS_HELP_STRING( 1267 [--disable-silent-rules], 1268 [verbose build output (undo: "make V=0")])dnl 1269 ]) 1270 case $enable_silent_rules in @%:@ ((( 1271 yes) AM_DEFAULT_VERBOSITY=0;; 1272 no) AM_DEFAULT_VERBOSITY=1;; 1273 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);; 1274 esac 1275 dnl 1276 dnl A few 'make' implementations (e.g., NonStop OS and NextStep) 1277 dnl do not support nested variable expansions. 1278 dnl See automake bug#9928 and bug#10237. 1279 am_make=${MAKE-make} 1280 AC_CACHE_CHECK([whether $am_make supports nested variables], 1281 [am_cv_make_support_nested_variables], 1282 [if AS_ECHO([['TRUE=$(BAR$(V)) 1283 BAR0=false 1284 BAR1=true 1285 V=1 1286 am__doit: 1287 @$(TRUE) 1288 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then 1289 am_cv_make_support_nested_variables=yes 1290 else 1291 am_cv_make_support_nested_variables=no 1292 fi]) 1293 if test $am_cv_make_support_nested_variables = yes; then 1294 dnl Using '$V' instead of '$(V)' breaks IRIX make. 1295 AM_V='$(V)' 1296 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' 1297 else 1298 AM_V=$AM_DEFAULT_VERBOSITY 1299 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY 1300 fi 1301 AC_SUBST([AM_V])dnl 1302 AM_SUBST_NOTMAKE([AM_V])dnl 1303 AC_SUBST([AM_DEFAULT_V])dnl 1304 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl 1305 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl 1306 AM_BACKSLASH='\' 1307 AC_SUBST([AM_BACKSLASH])dnl 1308 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl 1309 ]) 1310 1311 # Copyright (C) 2001-2014 Free Software Foundation, Inc. 1312 # 1313 # This file is free software; the Free Software Foundation 1314 # gives unlimited permission to copy and/or distribute it, 1315 # with or without modifications, as long as this notice is preserved. 1316 1317 # AM_PROG_INSTALL_STRIP 1318 # --------------------- 1319 # One issue with vendor 'install' (even GNU) is that you can't 1320 # specify the program used to strip binaries. This is especially 1321 # annoying in cross-compiling environments, where the build's strip 1322 # is unlikely to handle the host's binaries. 1323 # Fortunately install-sh will honor a STRIPPROG variable, so we 1324 # always use install-sh in "make install-strip", and initialize 1325 # STRIPPROG with the value of the STRIP variable (set by the user). 1326 AC_DEFUN([AM_PROG_INSTALL_STRIP], 1327 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl 1328 # Installed binaries are usually stripped using 'strip' when the user 1329 # run "make install-strip". However 'strip' might not be the right 1330 # tool to use in cross-compilation environments, therefore Automake 1331 # will honor the 'STRIP' environment variable to overrule this program. 1332 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'. 1333 if test "$cross_compiling" != no; then 1334 AC_CHECK_TOOL([STRIP], [strip], :) 1335 fi 1336 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" 1337 AC_SUBST([INSTALL_STRIP_PROGRAM])]) 1338 1339 # Copyright (C) 2006-2014 Free Software Foundation, Inc. 1340 # 1341 # This file is free software; the Free Software Foundation 1342 # gives unlimited permission to copy and/or distribute it, 1343 # with or without modifications, as long as this notice is preserved. 1344 1345 # _AM_SUBST_NOTMAKE(VARIABLE) 1346 # --------------------------- 1347 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in. 1348 # This macro is traced by Automake. 1349 AC_DEFUN([_AM_SUBST_NOTMAKE]) 1350 1351 # AM_SUBST_NOTMAKE(VARIABLE) 1352 # -------------------------- 1353 # Public sister of _AM_SUBST_NOTMAKE. 1354 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)]) 1355 1356 # Check how to create a tarball. -*- Autoconf -*- 1357 1358 # Copyright (C) 2004-2014 Free Software Foundation, Inc. 1359 # 1360 # This file is free software; the Free Software Foundation 1361 # gives unlimited permission to copy and/or distribute it, 1362 # with or without modifications, as long as this notice is preserved. 1363 1364 # _AM_PROG_TAR(FORMAT) 1365 # -------------------- 1366 # Check how to create a tarball in format FORMAT. 1367 # FORMAT should be one of 'v7', 'ustar', or 'pax'. 1368 # 1369 # Substitute a variable $(am__tar) that is a command 1370 # writing to stdout a FORMAT-tarball containing the directory 1371 # $tardir. 1372 # tardir=directory && $(am__tar) > result.tar 1373 # 1374 # Substitute a variable $(am__untar) that extract such 1375 # a tarball read from stdin. 1376 # $(am__untar) < result.tar 1377 # 1378 AC_DEFUN([_AM_PROG_TAR], 1379 [# Always define AMTAR for backward compatibility. Yes, it's still used 1380 # in the wild :-( We should find a proper way to deprecate it ... 1381 AC_SUBST([AMTAR], ['$${TAR-tar}']) 1382 1383 # We'll loop over all known methods to create a tar archive until one works. 1384 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 1385 1386 m4_if([$1], [v7], 1387 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], 1388 1389 [m4_case([$1], 1390 [ustar], 1391 [# The POSIX 1988 'ustar' format is defined with fixed-size fields. 1392 # There is notably a 21 bits limit for the UID and the GID. In fact, 1393 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 1394 # and bug#13588). 1395 am_max_uid=2097151 # 2^21 - 1 1396 am_max_gid=$am_max_uid 1397 # The $UID and $GID variables are not portable, so we need to resort 1398 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls 1399 # below are definitely unexpected, so allow the users to see them 1400 # (that is, avoid stderr redirection). 1401 am_uid=`id -u || echo unknown` 1402 am_gid=`id -g || echo unknown` 1403 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) 1404 if test $am_uid -le $am_max_uid; then 1405 AC_MSG_RESULT([yes]) 1406 else 1407 AC_MSG_RESULT([no]) 1408 _am_tools=none 1409 fi 1410 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) 1411 if test $am_gid -le $am_max_gid; then 1412 AC_MSG_RESULT([yes]) 1413 else 1414 AC_MSG_RESULT([no]) 1415 _am_tools=none 1416 fi], 1417 1418 [pax], 1419 [], 1420 1421 [m4_fatal([Unknown tar format])]) 1422 1423 AC_MSG_CHECKING([how to create a $1 tar archive]) 1424 1425 # Go ahead even if we have the value already cached. We do so because we 1426 # need to set the values for the 'am__tar' and 'am__untar' variables. 1427 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 1428 1429 for _am_tool in $_am_tools; do 1430 case $_am_tool in 1431 gnutar) 1432 for _am_tar in tar gnutar gtar; do 1433 AM_RUN_LOG([$_am_tar --version]) && break 1434 done 1435 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 1436 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 1437 am__untar="$_am_tar -xf -" 1438 ;; 1439 plaintar) 1440 # Must skip GNU tar: if it does not support --format= it doesn't create 1441 # ustar tarball either. 1442 (tar --version) >/dev/null 2>&1 && continue 1443 am__tar='tar chf - "$$tardir"' 1444 am__tar_='tar chf - "$tardir"' 1445 am__untar='tar xf -' 1446 ;; 1447 pax) 1448 am__tar='pax -L -x $1 -w "$$tardir"' 1449 am__tar_='pax -L -x $1 -w "$tardir"' 1450 am__untar='pax -r' 1451 ;; 1452 cpio) 1453 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 1454 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 1455 am__untar='cpio -i -H $1 -d' 1456 ;; 1457 none) 1458 am__tar=false 1459 am__tar_=false 1460 am__untar=false 1461 ;; 1462 esac 1463 1464 # If the value was cached, stop now. We just wanted to have am__tar 1465 # and am__untar set. 1466 test -n "${am_cv_prog_tar_$1}" && break 1467 1468 # tar/untar a dummy directory, and stop if the command works. 1469 rm -rf conftest.dir 1470 mkdir conftest.dir 1471 echo GrepMe > conftest.dir/file 1472 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 1473 rm -rf conftest.dir 1474 if test -s conftest.tar; then 1475 AM_RUN_LOG([$am__untar <conftest.tar]) 1476 AM_RUN_LOG([cat conftest.dir/file]) 1477 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 1478 fi 1479 done 1480 rm -rf conftest.dir 1481 1482 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) 1483 AC_MSG_RESULT([$am_cv_prog_tar_$1])]) 1484 1485 AC_SUBST([am__tar]) 1486 AC_SUBST([am__untar]) 1487 ]) # _AM_PROG_TAR 1488 1489 m4_include([m4/ax_pthread.m4]) 1490 m4_include([m4/libtool.m4]) 1491 m4_include([m4/ltoptions.m4]) 1492 m4_include([m4/ltsugar.m4]) 1493 m4_include([m4/ltversion.m4]) 1494 m4_include([m4/lt~obsolete.m4]) 1495 m4_include([m4/pcre2_visibility.m4]) 1496
