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Yes, it's still used 1138# in the wild :-( We should find a proper way to deprecate it ... 1139AC_SUBST([AMTAR], ['$${TAR-tar}']) 1140 1141# We'll loop over all known methods to create a tar archive until one works. 1142_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 1143 1144m4_if([$1], [v7], 1145 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], 1146 1147 [m4_case([$1], 1148 [ustar], 1149 [# The POSIX 1988 'ustar' format is defined with fixed-size fields. 1150 # There is notably a 21 bits limit for the UID and the GID. In fact, 1151 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 1152 # and bug#13588). 1153 am_max_uid=2097151 # 2^21 - 1 1154 am_max_gid=$am_max_uid 1155 # The $UID and $GID variables are not portable, so we need to resort 1156 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls 1157 # below are definitely unexpected, so allow the users to see them 1158 # (that is, avoid stderr redirection). 1159 am_uid=`id -u || echo unknown` 1160 am_gid=`id -g || echo unknown` 1161 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) 1162 if test $am_uid -le $am_max_uid; then 1163 AC_MSG_RESULT([yes]) 1164 else 1165 AC_MSG_RESULT([no]) 1166 _am_tools=none 1167 fi 1168 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) 1169 if test $am_gid -le $am_max_gid; then 1170 AC_MSG_RESULT([yes]) 1171 else 1172 AC_MSG_RESULT([no]) 1173 _am_tools=none 1174 fi], 1175 1176 [pax], 1177 [], 1178 1179 [m4_fatal([Unknown tar format])]) 1180 1181 AC_MSG_CHECKING([how to create a $1 tar archive]) 1182 1183 # Go ahead even if we have the value already cached. We do so because we 1184 # need to set the values for the 'am__tar' and 'am__untar' variables. 1185 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 1186 1187 for _am_tool in $_am_tools; do 1188 case $_am_tool in 1189 gnutar) 1190 for _am_tar in tar gnutar gtar; do 1191 AM_RUN_LOG([$_am_tar --version]) && break 1192 done 1193 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 1194 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 1195 am__untar="$_am_tar -xf -" 1196 ;; 1197 plaintar) 1198 # Must skip GNU tar: if it does not support --format= it doesn't create 1199 # ustar tarball either. 1200 (tar --version) >/dev/null 2>&1 && continue 1201 am__tar='tar chf - "$$tardir"' 1202 am__tar_='tar chf - "$tardir"' 1203 am__untar='tar xf -' 1204 ;; 1205 pax) 1206 am__tar='pax -L -x $1 -w "$$tardir"' 1207 am__tar_='pax -L -x $1 -w "$tardir"' 1208 am__untar='pax -r' 1209 ;; 1210 cpio) 1211 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 1212 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 1213 am__untar='cpio -i -H $1 -d' 1214 ;; 1215 none) 1216 am__tar=false 1217 am__tar_=false 1218 am__untar=false 1219 ;; 1220 esac 1221 1222 # If the value was cached, stop now. We just wanted to have am__tar 1223 # and am__untar set. 1224 test -n "${am_cv_prog_tar_$1}" && break 1225 1226 # tar/untar a dummy directory, and stop if the command works. 1227 rm -rf conftest.dir 1228 mkdir conftest.dir 1229 echo GrepMe > conftest.dir/file 1230 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 1231 rm -rf conftest.dir 1232 if test -s conftest.tar; then 1233 AM_RUN_LOG([$am__untar <conftest.tar]) 1234 AM_RUN_LOG([cat conftest.dir/file]) 1235 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 1236 fi 1237 done 1238 rm -rf conftest.dir 1239 1240 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) 1241 AC_MSG_RESULT([$am_cv_prog_tar_$1])]) 1242 1243AC_SUBST([am__tar]) 1244AC_SUBST([am__untar]) 1245]) # _AM_PROG_TAR 1246 1247m4_include([m4/ax_pthread.m4]) 1248m4_include([m4/libtool.m4]) 1249m4_include([m4/ltoptions.m4]) 1250m4_include([m4/ltsugar.m4]) 1251m4_include([m4/ltversion.m4]) 1252m4_include([m4/lt~obsolete.m4]) 1253m4_include([acinclude.m4]) 1254