~ubuntu-branches/ubuntu/vivid/nbdkit/vivid : revision 1.1.1

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# and bug#13588).

1178

am_max_uid=2097151 # 2^21 - 1

1179

am_max_gid=$am_max_uid

1180

# The $UID and $GID variables are not portable, so we need to resort

1181

# to the POSIX-mandated id(1) utility. Errors in the 'id' calls

1182

# below are definitely unexpected, so allow the users to see them

1183

# (that is, avoid stderr redirection).

1184

am_uid=`id -u || echo unknown`

1185

am_gid=`id -g || echo unknown`

1186

AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])

1187

if test $am_uid -le $am_max_uid; then

1188

AC_MSG_RESULT([yes])

1189

else

1190

AC_MSG_RESULT([no])

1191

_am_tools=none

1192

fi

1193

AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])

1194

if test $am_gid -le $am_max_gid; then

1195

AC_MSG_RESULT([yes])

1196

else

1197

AC_MSG_RESULT([no])

1198

_am_tools=none

1199

fi],

1200

1201

[pax],

1202

[],

1203

1204

[m4_fatal([Unknown tar format])])

1205

1206

AC_MSG_CHECKING([how to create a $1 tar archive])

1207

1208

# Go ahead even if we have the value already cached. We do so because we

1209

# need to set the values for the 'am__tar' and 'am__untar' variables.

1210

_am_tools=${am_cv_prog_tar_$1-$_am_tools}

1211

1212

for _am_tool in $_am_tools; do

1213

case $_am_tool in

1214

gnutar)

1215

for _am_tar in tar gnutar gtar; do

1216

AM_RUN_LOG([$_am_tar --version]) && break

1217

done

1218

am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'

1219

am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'

1220

am__untar="$_am_tar -xf -"

1221

;;

1222

plaintar)

1223

# Must skip GNU tar: if it does not support --format= it doesn't create

1224

# ustar tarball either.

1225

(tar --version) >/dev/null 2>&1 && continue

1226

am__tar='tar chf - "$$tardir"'

1227

am__tar_='tar chf - "$tardir"'

1228

am__untar='tar xf -'

1229

;;

1230

pax)

1231

am__tar='pax -L -x $1 -w "$$tardir"'

1232

am__tar_='pax -L -x $1 -w "$tardir"'

1233

am__untar='pax -r'

1234

;;

1235

cpio)

1236

am__tar='find "$$tardir" -print | cpio -o -H $1 -L'

1237

am__tar_='find "$tardir" -print | cpio -o -H $1 -L'

1238

am__untar='cpio -i -H $1 -d'

1239

;;

1240

none)

1241

am__tar=false

1242

am__tar_=false

1243

am__untar=false

1244

;;

1245

esac

1246

1247

# If the value was cached, stop now. We just wanted to have am__tar

1248

# and am__untar set.

1249

test -n "${am_cv_prog_tar_$1}" && break

1250

1251

# tar/untar a dummy directory, and stop if the command works.

1252

rm -rf conftest.dir

1253

mkdir conftest.dir

1254

echo GrepMe > conftest.dir/file

1255

AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])

1256

rm -rf conftest.dir

1257

if test -s conftest.tar; then

1258

AM_RUN_LOG([$am__untar <conftest.tar])

1259

AM_RUN_LOG([cat conftest.dir/file])

1260

grep GrepMe conftest.dir/file >/dev/null 2>&1 && break

1261

fi

1262

done

1263

rm -rf conftest.dir

1264

1265

AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])

1266

AC_MSG_RESULT([$am_cv_prog_tar_$1])])

1267

1204

1268

AC_SUBST([am__tar])

1205

1269

AC_SUBST([am__untar])

1206

1270

]) # _AM_PROG_TAR