Problem installing IO::Compress::Base

[John Oliver]

cpan[1]> install IO::Compress::Base
CPAN: Storable loaded ok (v2.15)
Going to read /root/.cpan/Metadata
Database was generated on Fri, 28 Sep 2007 17:36:46 GMT
Running install for module 'IO::Compress::Base'
Running make for P/PM/PMQS/IO-Compress-Base-2.006.tar.gz
CPAN: Digest::SHA loaded ok (v5.45)
CPAN: Compress::Zlib loaded ok (v1.42)
Checksum for
/root/.cpan/sources/authors/id/P/PM/PMQS/IO-Compress-Base-2.006.tar.gz
ok
Scanning cache /root/.cpan/build for sizes
.............................................................................DONE
IO-Compress-Base-2.006/
IO-Compress-Base-2.006/t/
IO-Compress-Base-2.006/t/compress/
IO-Compress-Base-2.006/t/compress/generic.pl
IO-Compress-Base-2.006/t/compress/zlib-generic.pl
IO-Compress-Base-2.006/t/compress/merge.pl
IO-Compress-Base-2.006/t/compress/oneshot.pl
IO-Compress-Base-2.006/t/compress/anyunc.pl
IO-Compress-Base-2.006/t/compress/newtied.pl
IO-Compress-Base-2.006/t/compress/prime.pl
IO-Compress-Base-2.006/t/compress/tied.pl
IO-Compress-Base-2.006/t/compress/truncate.pl
IO-Compress-Base-2.006/t/compress/multi.pl
IO-Compress-Base-2.006/t/compress/destroy.pl
IO-Compress-Base-2.006/t/compress/CompTestUtils.pm
IO-Compress-Base-2.006/t/compress/any.pl
IO-Compress-Base-2.006/t/000prereq.t
IO-Compress-Base-2.006/t/Test/
IO-Compress-Base-2.006/t/Test/More.pm
IO-Compress-Base-2.006/t/Test/Simple.pm
IO-Compress-Base-2.006/t/Test/Builder.pm
IO-Compress-Base-2.006/t/01misc.t
IO-Compress-Base-2.006/t/99pod.t
IO-Compress-Base-2.006/t/globmapper.t
IO-Compress-Base-2.006/Changes
IO-Compress-Base-2.006/lib/
IO-Compress-Base-2.006/lib/IO/
IO-Compress-Base-2.006/lib/IO/Uncompress/
IO-Compress-Base-2.006/lib/IO/Uncompress/Base.pm
IO-Compress-Base-2.006/lib/IO/Uncompress/AnyUncompress.pm
IO-Compress-Base-2.006/lib/IO/Compress/
IO-Compress-Base-2.006/lib/IO/Compress/Base.pm
IO-Compress-Base-2.006/lib/IO/Compress/Base/
IO-Compress-Base-2.006/lib/IO/Compress/Base/Common.pm
IO-Compress-Base-2.006/lib/File/
IO-Compress-Base-2.006/lib/File/GlobMapper.pm
IO-Compress-Base-2.006/private/
IO-Compress-Base-2.006/private/MakeUtil.pm
IO-Compress-Base-2.006/MANIFEST
IO-Compress-Base-2.006/META.yml
IO-Compress-Base-2.006/pod/
IO-Compress-Base-2.006/pod/FAQ.pod
IO-Compress-Base-2.006/Makefile.PL
IO-Compress-Base-2.006/README
CPAN: File::Temp loaded ok (v0.18)
CPAN: YAML loaded ok (v0.66)

CPAN.pm: Going to build P/PM/PMQS/IO-Compress-Base-2.006.tar.gz

Up/Downgrade not needed.
Checking if your kit is complete...
Looks good
Writing Makefile for IO::Compress::Base
cp lib/IO/Uncompress/Base.pm blib/lib/IO/Uncompress/Base.pm
cp lib/IO/Uncompress/AnyUncompress.pm
blib/lib/IO/Uncompress/AnyUncompress.pm
cp lib/File/GlobMapper.pm blib/lib/File/GlobMapper.pm
cp lib/IO/Compress/Base.pm blib/lib/IO/Compress/Base.pm
cp lib/IO/Compress/Base/Common.pm blib/lib/IO/Compress/Base/Common.pm
Manifying blib/man3/IO::Uncompress::AnyUncompress.3pm
Manifying blib/man3/IO::Uncompress::Base.3pm
Manifying blib/man3/IO::Compress::Base.3pm
Manifying blib/man3/File::GlobMapper.3pm
PMQS/IO-Compress-Base-2.006.tar.gz
/usr/bin/make -- OK
Running make test
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e"
"test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/000prereq.....ok
t/01misc........Use of uninitialized value in concatenation (.) or
string at /usr/lib/perl5/5.8.8/Scalar/Util.pm line 30.

# Failed test (t/01misc.t at line 29)
# You don't have the XS version of Scalar::Util
# Looks like you failed 1 test of 78.
t/01misc........dubious
Test returned status 1 (wstat 256, 0x100)
DIED. FAILED test 3
Failed 1/78 tests, 98.72% okay (less 1 skipped test: 76 okay,
97.44%)
t/99pod.........skipped
all skipped: Test:od 1.00 required for testing POD
t/globmapper....ok
Failed Test Stat Wstat Total Fail List of Failed
-------------------------------------------------------------------------------
t/01misc.t 1 256 78 1 3
1 test and 1 subtest skipped.
Failed 1/4 test scripts. 1/147 subtests failed.
Files=4, Tests=147, 0 wallclock secs ( 0.17 cusr + 0.05 csys = 0.22
CPU)
Failed 1/4 test programs. 1/147 subtests failed.
make: *** [test_dynamic] Error 255
PMQS/IO-Compress-Base-2.006.tar.gz
/usr/bin/make test -- NOT OK
//hint// To get more information about failing tests, try:
reports PMQS/IO-Compress-Base-2.006.tar.gz
Running make install
make test had returned bad status, won't install without force
Failed during this command:
PMQS/IO-Compress-Base-2.006.tar.gz : make_test NO

 

[Ben Morrow]

# Failed test (t/01misc.t at line 29)
# You don't have the XS version of Scalar::Util

Seems fairly self-explanatory to me... you need to (re-)install
Scalar::Util, so you get the XS version.

Arguably IO-Compress-Base ought to depend on Task::Weaken, which is
supposed to fix this problem; I guess Paul is more interested in not
introducing new potential problems.

Ben

 

[John Oliver]

Seems fairly self-explanatory to me... you need to (re-)install
Scalar::Util, so you get the XS version.

For the archives, as inevitably someone will email me about this in two
years...

This was fixed by removing and reinstalling all perl packages (RHEL 5).
There is no Scalar::Util::XS and no way that I can see of determining
whether or not Scalar::Util is "XS" or not. I mention this because
Google was of no help whatsoever with this... a few mentions of others
getting the same error, but no explanations of how
to determine whether or not you're installing an "XS" version of
Scalar::Util This was probably one of the packages installed via RPM,
and it's a complete mystery to me how from one install I do not have XS
but another I do. I know nothing about perl other than to (try to)
install whatever modules a given program needs, and I know i'm not the
only one in that boat

 

[sisyphus1]

but no explanations of how
to determine whether or not you're installing an "XS" version of
Scalar::Util

Yes - I didn't spot any such explanation.

At the beginning of the Scalar-List-Utils Makefile.PL you'll find:

my $do_xs = can_cc();

where 'can_cc' is a Module::Install sub. The return of 'can_cc'
determines whether it's an XS build or a pure perl build.

The IO::Compress::Base test file (01misc.t) determines whether you
have the XS or pure perl version of Scalar::Util by calling the
CompTestUtils.pm subroutine 'gotScalarUtilXS' which looks like:

sub gotScalarUtilXS
{
eval ' use Scalar::Util "dualvar" ';
return $@ ? 0 : 1 ;
}

Apparently, 'dualvar' is available only with the xs build.
(CompTestUtils.pm is part of the IO::Compress::Base source.)

Cheers,
Rob

 

[Paul Marquess]

Seems fairly self-explanatory to me... you need to (re-)install
Scalar::Util, so you get the XS version.

Arguably IO-Compress-Base ought to depend on Task::Weaken, which is
supposed to fix this problem; I guess Paul is more interested in not
introducing new potential problems.

Having a dependency on Task::Weaken would only make sense if I was using
weaken, which I'm not. I use Scalar::Util for readonly

Paul

 

[Ben Morrow]

Having a dependency on Task::Weaken would only make sense if I was using
weaken, which I'm not.

Except that Task::Weaken ought to have been called
Task::Get::Me::The::_Real_::Scalar::Util .

I use Scalar::Util for readonly

So, why are you testing for the XS version? /me is confused...

Ben

 

[sisyphus359]

..
..

So, why are you testing for the XS version? /me is confused...

But it's the IO::Compress::Base test file (t/01misc.t), not the OP,
that's "testing for the XS version".

Or, is it *me* that's confused ...

Cheers,
Rob

 

[Paul Marquess]

Except that Task::Weaken ought to have been called
Task::Get::Me::The::_Real_::Scalar::Util .


So, why are you testing for the XS version? /me is confused...

Sorry, I spoke too soon.

I used to use Scalar::Util in IO::Compress::Base for both dualvar &
readonly, but I don't any more. dualvar needs the XS build of Scalar::Util.

The IO::Compress modules that derive from IO::Compress::Base all need
Scalar::Util for both dualvar & readonly. So although I don't strictly
need to test for Scalar::Util in IO::Compress::Base, it just means a
prerequisite module gets tested a bit sooner than is needed.

Paul

 

[Charlton Wilbur]

(a long log, of which the salient point is thus

JO> # Failed test (t/01misc.t at line 29)
JO> # You don't have the XS version of Scalar::Util

Something possibly related: one of RedHat's recent Perl RPMs screws up
Scalar::Util, at least the non-XS version, and this may be the root
cause of what you're seeing.

I don't know if it's the real problem here, but it's something to check.

Charlton

 

[Paul Marquess]

For the archives, as inevitably someone will email me about this in two
years...

This was fixed by removing and reinstalling all perl packages (RHEL 5).
There is no Scalar::Util::XS and no way that I can see of determining
whether or not Scalar::Util is "XS" or not. I mention this because
Google was of no help whatsoever with this... a few mentions of others
getting the same error, but no explanations of how
to determine whether or not you're installing an "XS" version of
Scalar::Util This was probably one of the packages installed via RPM,
and it's a complete mystery to me how from one install I do not have XS
but another I do. I know nothing about perl other than to (try to)
install whatever modules a given program needs, and I know i'm not the
only one in that boat

Reinstalling all packages seems a fairly drastic step. I would have thought
that reinstalling Scalar::Util would have been enough to sort this out.

Paul

 

[Philip Sharman]

I would have thought

that reinstalling Scalar::Util would have been enough to sort this out.

I would have thought so too, but it didn't work for me.

(I'm using RedHat Enterprise Linux 4. I deleted
/usr/lib/perl5/5.8.5/Scalar/ and reinstalled Scalar::Util. I still get
the same error message.)

Any help on this would be greatly appreciated. How can I get an "XS
version"?

Thanks, Philip.

 

[sisyphus]

Any help on this would be greatly appreciated. How can I get an "XS
version"?

When Paul mentioned "reinstalling Scalar::Util" he meant that the
reinstallation be done by building from the CPAN source distribution
of Scalar::Util. Is that what you tried ? (Reinstalling an RPM
wouldn't help if the RPM package is not an XS build.)

Even then, building Scalar::Util from source won't give you an XS
build if a C compiler is not found - in which case (I think) you'll be
informed, during the build process, that you're not getting the XS
build.

Cheers,
Rob