Hi, thanks a lot for working on this! I would like to point some notes, sorry for doing it so late..
> diff --git a/m4/tar.m4 b/m4/tar.m4 > index ec8c83e..61c1206 100644 > --- a/m4/tar.m4 > +++ b/m4/tar.m4 > @@ -81,7 +81,31 @@ do > AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) > rm -rf conftest.dir > if test -s conftest.tar; then > - AM_RUN_LOG([$am__untar <conftest.tar]) We are dropping here the testing of unpack phase completely, I am not sure whether this is intentional? > rm -rf conftest.dir > if test -s conftest.tar; then > - AM_RUN_LOG([$am__untar <conftest.tar]) > + m4_if([$1], [ustar], [ > + if test "$_am_tool" = pax; then The problem here is not about pax utility, it is rather general problem; there is not worth to check whether even the GNU tar works if we are requesting 'ustar' format of archive && $UID/$GID >= 2^21 (it will _always_ fail). > [..skip..] I would go rather for the approach of (a) check whether the $UID/$GID > bigger than 2^21 and if yes, write some error output to *.log file (don't try any archivers as they all should fail). I would also add the advice to use 'pax' format (which is not currently supported by 'pax' utility - it is quite funny - but GNU tar is OK here). Pavel
