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Yes, it's still used 1155# in the wild :-( We should find a proper way to deprecate it ... 1156AC_SUBST([AMTAR], ['$${TAR-tar}']) 1157 1158# We'll loop over all known methods to create a tar archive until one works. 1159_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 1160 1161m4_if([$1], [v7], 1162 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], 1163 1164 [m4_case([$1], 1165 [ustar], 1166 [# The POSIX 1988 'ustar' format is defined with fixed-size fields. 1167 # There is notably a 21 bits limit for the UID and the GID. In fact, 1168 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 1169 # and bug#13588). 1170 am_max_uid=2097151 # 2^21 - 1 1171 am_max_gid=$am_max_uid 1172 # The $UID and $GID variables are not portable, so we need to resort 1173 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls 1174 # below are definitely unexpected, so allow the users to see them 1175 # (that is, avoid stderr redirection). 1176 am_uid=`id -u || echo unknown` 1177 am_gid=`id -g || echo unknown` 1178 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) 1179 if test $am_uid -le $am_max_uid; then 1180 AC_MSG_RESULT([yes]) 1181 else 1182 AC_MSG_RESULT([no]) 1183 _am_tools=none 1184 fi 1185 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) 1186 if test $am_gid -le $am_max_gid; then 1187 AC_MSG_RESULT([yes]) 1188 else 1189 AC_MSG_RESULT([no]) 1190 _am_tools=none 1191 fi], 1192 1193 [pax], 1194 [], 1195 1196 [m4_fatal([Unknown tar format])]) 1197 1198 AC_MSG_CHECKING([how to create a $1 tar archive]) 1199 1200 # Go ahead even if we have the value already cached. We do so because we 1201 # need to set the values for the 'am__tar' and 'am__untar' variables. 1202 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 1203 1204 for _am_tool in $_am_tools; do 1205 case $_am_tool in 1206 gnutar) 1207 for _am_tar in tar gnutar gtar; do 1208 AM_RUN_LOG([$_am_tar --version]) && break 1209 done 1210 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 1211 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 1212 am__untar="$_am_tar -xf -" 1213 ;; 1214 plaintar) 1215 # Must skip GNU tar: if it does not support --format= it doesn't create 1216 # ustar tarball either. 1217 (tar --version) >/dev/null 2>&1 && continue 1218 am__tar='tar chf - "$$tardir"' 1219 am__tar_='tar chf - "$tardir"' 1220 am__untar='tar xf -' 1221 ;; 1222 pax) 1223 am__tar='pax -L -x $1 -w "$$tardir"' 1224 am__tar_='pax -L -x $1 -w "$tardir"' 1225 am__untar='pax -r' 1226 ;; 1227 cpio) 1228 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 1229 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 1230 am__untar='cpio -i -H $1 -d' 1231 ;; 1232 none) 1233 am__tar=false 1234 am__tar_=false 1235 am__untar=false 1236 ;; 1237 esac 1238 1239 # If the value was cached, stop now. We just wanted to have am__tar 1240 # and am__untar set. 1241 test -n "${am_cv_prog_tar_$1}" && break 1242 1243 # tar/untar a dummy directory, and stop if the command works. 1244 rm -rf conftest.dir 1245 mkdir conftest.dir 1246 echo GrepMe > conftest.dir/file 1247 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 1248 rm -rf conftest.dir 1249 if test -s conftest.tar; then 1250 AM_RUN_LOG([$am__untar <conftest.tar]) 1251 AM_RUN_LOG([cat conftest.dir/file]) 1252 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 1253 fi 1254 done 1255 rm -rf conftest.dir 1256 1257 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) 1258 AC_MSG_RESULT([$am_cv_prog_tar_$1])]) 1259 1260AC_SUBST([am__tar]) 1261AC_SUBST([am__untar]) 1262]) # _AM_PROG_TAR 1263 1264m4_include([m4/libtool.m4]) 1265m4_include([m4/ltoptions.m4]) 1266m4_include([m4/ltsugar.m4]) 1267m4_include([m4/ltversion.m4]) 1268m4_include([m4/lt~obsolete.m4]) 1269m4_include([acinclude.m4]) 1270