undefined symbol

entropic has asked for the wisdom of the Perl Monks concerning the following question:

I have been trying to figure out this problem for a few days now... I am trying to install a set of dependent modules for mogilefs. Yesterday, I was hung up on installing IO::AIO due to error: undefined symbol. I forget specifically what symbol, but google says it's a method in the perl API. After chatting with people in the chatterbox, it was decided that I needed to upgrade from Perl 5.8.8 to 5.10. - Now I have done that, and I have installed IO::AIO seemingly successfully, and I'm getting hung-up on the next module: Gearman::Client::Async - same basic problem:

Running make test
PERL_DL_NONLAZY=1 /usr/local/bin/perl "-MExtUtils::Command::MM" "-e" "
+test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/allinone........Can't load '/usr/local/lib/perl5/5.10.0/x86_64-linux
+/auto/IO/IO.so' for module IO: /usr/local/lib/perl5/5.10.0/x86_64-lin
+ux/auto/IO/IO.so: undefined symbol: PL_sv_undef at /usr/local/lib/per
+l5/5.10.0/x86_64-linux/XSLoader.pm line 64.
 at /usr/local/lib/perl5/5.10.0/x86_64-linux/IO.pm line 11
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another symbol that should be in the perl API... what gives? this is driving me mad. This is a Brand spanking new Debian Etch amd64 machine. Completely fresh out of the box. These are the packages I have updated via apt-get:

apt-get install
    openssh-server
    build-essential
    libmysqlclient15-dev
    subversion
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then I downloaded and compiled, make, make test, make install:

perl-5.10.0.tar.gz
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Then installed:

perl -MCPAN -e shell;
install IO::AIO - seemed to work fine
install Gearman::Client::Async - FAIL (see msg above)
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Please Help?

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Replies are listed 'Best First'.
Re: undefined symbol by chromatic (Archbishop) on Oct 15, 2008 at 22:36 UTC
Where did you install Perl 5.10? Did you overwrite your system version? Did you use the correct version of Perl to run CPAN?	[reply]
Re^2: undefined symbol by Anonymous Monk on Oct 15, 2008 at 23:28 UTC
I downloaded the perl 5.10 source and did default installation recommended in the INSTALL file: `sh Configure -de make make test make install` [download] then i did: `perl --version` [download] and it confirmed 5.10 then: `perl -MCPAN -e shell; install Gearman::Client::Async` [download] failure...	[reply] [d/l] [select]
Re^3: undefined symbol by chromatic (Archbishop) on Oct 18, 2008 at 19:08 UTC
Okay. You overwrite your OS version with a different version of Perl. Restore the system version of Perl, then configure 5.10 again to install to a different location.	[reply]
Re: undefined symbol by syphilis (Archbishop) on Oct 16, 2008 at 10:37 UTC
Can't load '/usr/local/lib/perl5/5.10.0/x86_64-linux /auto/IO/IO.so' for module IO That message suggests to me that the following should produce the same error message: `perl -MIO -le 'print $IO::VERSION'` [download] And given that IO is a core module, we would then be led to wonder how 'make test' for your perl-5.10.0 build passed. Did 'make test' pass all tests when you built your perl-5.10.0 ? Cheers, Rob	[reply] [d/l]
Re: undefined symbol by Anonymous Monk on Oct 19, 2008 at 19:54 UTC
Same problem with Debian4-etch-amd64 and IO::AIO. On installation perl Makefile.pl looks good, make builds the file, but make test won't pass: Can't load '/usr/src/IO-AIO-3.1/blib/arch/auto/IO/AIO/AIO.so' for module IO::AIO: /usr/src/IO-AIO-3.1/blib/arch/auto/IO/AIO/AIO.so: undefined symbol: SvREFCNT_inc_NN at /usr/lib/perl/5.8/DynaLoader.pm line 225. at /usr/lib/perl/5.8/DynaLoader.pm line 218	[reply]