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Must try -L first in case configure is actually a 1094# symlink; some systems play weird games with the mod time of symlinks 1095# (eg FreeBSD returns the mod time of the symlink's containing 1096# directory). 1097if ( 1098 am_has_slept=no 1099 for am_try in 1 2; do 1100 echo "timestamp, slept: $am_has_slept" > conftest.file 1101 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` 1102 if test "$[*]" = "X"; then 1103 # -L didn't work. 1104 set X `ls -t "$srcdir/configure" conftest.file` 1105 fi 1106 if test "$[*]" != "X $srcdir/configure conftest.file" \ 1107 && test "$[*]" != "X conftest.file $srcdir/configure"; then 1108 1109 # If neither matched, then we have a broken ls. This can happen 1110 # if, for instance, CONFIG_SHELL is bash and it inherits a 1111 # broken ls alias from the environment. This has actually 1112 # happened. Such a system could not be considered "sane". 1113 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken 1114 alias in your environment]) 1115 fi 1116 if test "$[2]" = conftest.file || test $am_try -eq 2; then 1117 break 1118 fi 1119 # Just in case. 1120 sleep 1 1121 am_has_slept=yes 1122 done 1123 test "$[2]" = conftest.file 1124 ) 1125then 1126 # Ok. 1127 : 1128else 1129 AC_MSG_ERROR([newly created file is older than distributed files! 1130Check your system clock]) 1131fi 1132AC_MSG_RESULT([yes]) 1133# If we didn't sleep, we still need to ensure time stamps of config.status and 1134# generated files are strictly newer. 1135am_sleep_pid= 1136if grep 'slept: no' conftest.file >/dev/null 2>&1; then 1137 ( sleep 1 ) & 1138 am_sleep_pid=$! 1139fi 1140AC_CONFIG_COMMANDS_PRE( 1141 [AC_MSG_CHECKING([that generated files are newer than configure]) 1142 if test -n "$am_sleep_pid"; then 1143 # Hide warnings about reused PIDs. 1144 wait $am_sleep_pid 2>/dev/null 1145 fi 1146 AC_MSG_RESULT([done])]) 1147rm -f conftest.file 1148]) 1149 1150# Copyright (C) 2009-2014 Free Software Foundation, Inc. 1151# 1152# This file is free software; the Free Software Foundation 1153# gives unlimited permission to copy and/or distribute it, 1154# with or without modifications, as long as this notice is preserved. 1155 1156# AM_SILENT_RULES([DEFAULT]) 1157# -------------------------- 1158# Enable less verbose build rules; with the default set to DEFAULT 1159# ("yes" being less verbose, "no" or empty being verbose). 1160AC_DEFUN([AM_SILENT_RULES], 1161[AC_ARG_ENABLE([silent-rules], [dnl 1162AS_HELP_STRING( 1163 [--enable-silent-rules], 1164 [less verbose build output (undo: "make V=1")]) 1165AS_HELP_STRING( 1166 [--disable-silent-rules], 1167 [verbose build output (undo: "make V=0")])dnl 1168]) 1169case $enable_silent_rules in @%:@ ((( 1170 yes) AM_DEFAULT_VERBOSITY=0;; 1171 no) AM_DEFAULT_VERBOSITY=1;; 1172 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);; 1173esac 1174dnl 1175dnl A few 'make' implementations (e.g., NonStop OS and NextStep) 1176dnl do not support nested variable expansions. 1177dnl See automake bug#9928 and bug#10237. 1178am_make=${MAKE-make} 1179AC_CACHE_CHECK([whether $am_make supports nested variables], 1180 [am_cv_make_support_nested_variables], 1181 [if AS_ECHO([['TRUE=$(BAR$(V)) 1182BAR0=false 1183BAR1=true 1184V=1 1185am__doit: 1186 @$(TRUE) 1187.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then 1188 am_cv_make_support_nested_variables=yes 1189else 1190 am_cv_make_support_nested_variables=no 1191fi]) 1192if test $am_cv_make_support_nested_variables = yes; then 1193 dnl Using '$V' instead of '$(V)' breaks IRIX make. 1194 AM_V='$(V)' 1195 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' 1196else 1197 AM_V=$AM_DEFAULT_VERBOSITY 1198 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY 1199fi 1200AC_SUBST([AM_V])dnl 1201AM_SUBST_NOTMAKE([AM_V])dnl 1202AC_SUBST([AM_DEFAULT_V])dnl 1203AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl 1204AC_SUBST([AM_DEFAULT_VERBOSITY])dnl 1205AM_BACKSLASH='\' 1206AC_SUBST([AM_BACKSLASH])dnl 1207_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl 1208]) 1209 1210# Copyright (C) 2001-2014 Free Software Foundation, Inc. 1211# 1212# This file is free software; the Free Software Foundation 1213# gives unlimited permission to copy and/or distribute it, 1214# with or without modifications, as long as this notice is preserved. 1215 1216# AM_PROG_INSTALL_STRIP 1217# --------------------- 1218# One issue with vendor 'install' (even GNU) is that you can't 1219# specify the program used to strip binaries. This is especially 1220# annoying in cross-compiling environments, where the build's strip 1221# is unlikely to handle the host's binaries. 1222# Fortunately install-sh will honor a STRIPPROG variable, so we 1223# always use install-sh in "make install-strip", and initialize 1224# STRIPPROG with the value of the STRIP variable (set by the user). 1225AC_DEFUN([AM_PROG_INSTALL_STRIP], 1226[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl 1227# Installed binaries are usually stripped using 'strip' when the user 1228# run "make install-strip". However 'strip' might not be the right 1229# tool to use in cross-compilation environments, therefore Automake 1230# will honor the 'STRIP' environment variable to overrule this program. 1231dnl Don't test for $cross_compiling = yes, because it might be 'maybe'. 1232if test "$cross_compiling" != no; then 1233 AC_CHECK_TOOL([STRIP], [strip], :) 1234fi 1235INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" 1236AC_SUBST([INSTALL_STRIP_PROGRAM])]) 1237 1238# Copyright (C) 2006-2014 Free Software Foundation, Inc. 1239# 1240# This file is free software; the Free Software Foundation 1241# gives unlimited permission to copy and/or distribute it, 1242# with or without modifications, as long as this notice is preserved. 1243 1244# _AM_SUBST_NOTMAKE(VARIABLE) 1245# --------------------------- 1246# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in. 1247# This macro is traced by Automake. 1248AC_DEFUN([_AM_SUBST_NOTMAKE]) 1249 1250# AM_SUBST_NOTMAKE(VARIABLE) 1251# -------------------------- 1252# Public sister of _AM_SUBST_NOTMAKE. 1253AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)]) 1254 1255# Check how to create a tarball. -*- Autoconf -*- 1256 1257# Copyright (C) 2004-2014 Free Software Foundation, Inc. 1258# 1259# This file is free software; the Free Software Foundation 1260# gives unlimited permission to copy and/or distribute it, 1261# with or without modifications, as long as this notice is preserved. 1262 1263# _AM_PROG_TAR(FORMAT) 1264# -------------------- 1265# Check how to create a tarball in format FORMAT. 1266# FORMAT should be one of 'v7', 'ustar', or 'pax'. 1267# 1268# Substitute a variable $(am__tar) that is a command 1269# writing to stdout a FORMAT-tarball containing the directory 1270# $tardir. 1271# tardir=directory && $(am__tar) > result.tar 1272# 1273# Substitute a variable $(am__untar) that extract such 1274# a tarball read from stdin. 1275# $(am__untar) < result.tar 1276# 1277AC_DEFUN([_AM_PROG_TAR], 1278[# Always define AMTAR for backward compatibility. Yes, it's still used 1279# in the wild :-( We should find a proper way to deprecate it ... 1280AC_SUBST([AMTAR], ['$${TAR-tar}']) 1281 1282# We'll loop over all known methods to create a tar archive until one works. 1283_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 1284 1285m4_if([$1], [v7], 1286 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], 1287 1288 [m4_case([$1], 1289 [ustar], 1290 [# The POSIX 1988 'ustar' format is defined with fixed-size fields. 1291 # There is notably a 21 bits limit for the UID and the GID. In fact, 1292 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 1293 # and bug#13588). 1294 am_max_uid=2097151 # 2^21 - 1 1295 am_max_gid=$am_max_uid 1296 # The $UID and $GID variables are not portable, so we need to resort 1297 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls 1298 # below are definitely unexpected, so allow the users to see them 1299 # (that is, avoid stderr redirection). 1300 am_uid=`id -u || echo unknown` 1301 am_gid=`id -g || echo unknown` 1302 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) 1303 if test $am_uid -le $am_max_uid; then 1304 AC_MSG_RESULT([yes]) 1305 else 1306 AC_MSG_RESULT([no]) 1307 _am_tools=none 1308 fi 1309 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) 1310 if test $am_gid -le $am_max_gid; then 1311 AC_MSG_RESULT([yes]) 1312 else 1313 AC_MSG_RESULT([no]) 1314 _am_tools=none 1315 fi], 1316 1317 [pax], 1318 [], 1319 1320 [m4_fatal([Unknown tar format])]) 1321 1322 AC_MSG_CHECKING([how to create a $1 tar archive]) 1323 1324 # Go ahead even if we have the value already cached. We do so because we 1325 # need to set the values for the 'am__tar' and 'am__untar' variables. 1326 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 1327 1328 for _am_tool in $_am_tools; do 1329 case $_am_tool in 1330 gnutar) 1331 for _am_tar in tar gnutar gtar; do 1332 AM_RUN_LOG([$_am_tar --version]) && break 1333 done 1334 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 1335 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 1336 am__untar="$_am_tar -xf -" 1337 ;; 1338 plaintar) 1339 # Must skip GNU tar: if it does not support --format= it doesn't create 1340 # ustar tarball either. 1341 (tar --version) >/dev/null 2>&1 && continue 1342 am__tar='tar chf - "$$tardir"' 1343 am__tar_='tar chf - "$tardir"' 1344 am__untar='tar xf -' 1345 ;; 1346 pax) 1347 am__tar='pax -L -x $1 -w "$$tardir"' 1348 am__tar_='pax -L -x $1 -w "$tardir"' 1349 am__untar='pax -r' 1350 ;; 1351 cpio) 1352 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 1353 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 1354 am__untar='cpio -i -H $1 -d' 1355 ;; 1356 none) 1357 am__tar=false 1358 am__tar_=false 1359 am__untar=false 1360 ;; 1361 esac 1362 1363 # If the value was cached, stop now. We just wanted to have am__tar 1364 # and am__untar set. 1365 test -n "${am_cv_prog_tar_$1}" && break 1366 1367 # tar/untar a dummy directory, and stop if the command works. 1368 rm -rf conftest.dir 1369 mkdir conftest.dir 1370 echo GrepMe > conftest.dir/file 1371 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 1372 rm -rf conftest.dir 1373 if test -s conftest.tar; then 1374 AM_RUN_LOG([$am__untar <conftest.tar]) 1375 AM_RUN_LOG([cat conftest.dir/file]) 1376 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 1377 fi 1378 done 1379 rm -rf conftest.dir 1380 1381 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) 1382 AC_MSG_RESULT([$am_cv_prog_tar_$1])]) 1383 1384AC_SUBST([am__tar]) 1385AC_SUBST([am__untar]) 1386]) # _AM_PROG_TAR 1387 1388m4_include([m4/ld-version-script.m4]) 1389m4_include([m4/libtool.m4]) 1390m4_include([m4/ltoptions.m4]) 1391m4_include([m4/ltsugar.m4]) 1392m4_include([m4/ltversion.m4]) 1393m4_include([m4/lt~obsolete.m4]) 1394m4_include([m4/pkg.m4]) 1395