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Yes, it's still used 1160# in the wild :-( We should find a proper way to deprecate it ... 1161AC_SUBST([AMTAR], ['$${TAR-tar}']) 1162 1163# We'll loop over all known methods to create a tar archive until one works. 1164_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 1165 1166m4_if([$1], [v7], 1167 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], 1168 1169 [m4_case([$1], 1170 [ustar], 1171 [# The POSIX 1988 'ustar' format is defined with fixed-size fields. 1172 # There is notably a 21 bits limit for the UID and the GID. In fact, 1173 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 1174 # and bug#13588). 1175 am_max_uid=2097151 # 2^21 - 1 1176 am_max_gid=$am_max_uid 1177 # The $UID and $GID variables are not portable, so we need to resort 1178 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls 1179 # below are definitely unexpected, so allow the users to see them 1180 # (that is, avoid stderr redirection). 1181 am_uid=`id -u || echo unknown` 1182 am_gid=`id -g || echo unknown` 1183 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) 1184 if test $am_uid -le $am_max_uid; then 1185 AC_MSG_RESULT([yes]) 1186 else 1187 AC_MSG_RESULT([no]) 1188 _am_tools=none 1189 fi 1190 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) 1191 if test $am_gid -le $am_max_gid; then 1192 AC_MSG_RESULT([yes]) 1193 else 1194 AC_MSG_RESULT([no]) 1195 _am_tools=none 1196 fi], 1197 1198 [pax], 1199 [], 1200 1201 [m4_fatal([Unknown tar format])]) 1202 1203 AC_MSG_CHECKING([how to create a $1 tar archive]) 1204 1205 # Go ahead even if we have the value already cached. We do so because we 1206 # need to set the values for the 'am__tar' and 'am__untar' variables. 1207 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 1208 1209 for _am_tool in $_am_tools; do 1210 case $_am_tool in 1211 gnutar) 1212 for _am_tar in tar gnutar gtar; do 1213 AM_RUN_LOG([$_am_tar --version]) && break 1214 done 1215 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 1216 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 1217 am__untar="$_am_tar -xf -" 1218 ;; 1219 plaintar) 1220 # Must skip GNU tar: if it does not support --format= it doesn't create 1221 # ustar tarball either. 1222 (tar --version) >/dev/null 2>&1 && continue 1223 am__tar='tar chf - "$$tardir"' 1224 am__tar_='tar chf - "$tardir"' 1225 am__untar='tar xf -' 1226 ;; 1227 pax) 1228 am__tar='pax -L -x $1 -w "$$tardir"' 1229 am__tar_='pax -L -x $1 -w "$tardir"' 1230 am__untar='pax -r' 1231 ;; 1232 cpio) 1233 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 1234 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 1235 am__untar='cpio -i -H $1 -d' 1236 ;; 1237 none) 1238 am__tar=false 1239 am__tar_=false 1240 am__untar=false 1241 ;; 1242 esac 1243 1244 # If the value was cached, stop now. We just wanted to have am__tar 1245 # and am__untar set. 1246 test -n "${am_cv_prog_tar_$1}" && break 1247 1248 # tar/untar a dummy directory, and stop if the command works. 1249 rm -rf conftest.dir 1250 mkdir conftest.dir 1251 echo GrepMe > conftest.dir/file 1252 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 1253 rm -rf conftest.dir 1254 if test -s conftest.tar; then 1255 AM_RUN_LOG([$am__untar <conftest.tar]) 1256 AM_RUN_LOG([cat conftest.dir/file]) 1257 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 1258 fi 1259 done 1260 rm -rf conftest.dir 1261 1262 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) 1263 AC_MSG_RESULT([$am_cv_prog_tar_$1])]) 1264 1265AC_SUBST([am__tar]) 1266AC_SUBST([am__untar]) 1267]) # _AM_PROG_TAR 1268 1269m4_include([m4/libtool.m4]) 1270m4_include([m4/ltoptions.m4]) 1271m4_include([m4/ltsugar.m4]) 1272m4_include([m4/ltversion.m4]) 1273m4_include([m4/lt~obsolete.m4]) 1274