How to access 5.8.0 - Perl-modules in Perl 5.8.8

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

Hello, everybody! I have Mandrake Linux, version 9.1. I installed Perl 5.8.8 (I failed to do it from CPAN, I did it manually from .tar.gz - file, and this was successful. But I didn't remove my previous Perl-version, and now I cannot run any script with my old installed modules. Those scripts worked successfully with Perl 5.8.0. I tried to re-install a couple of modules through cpan, even force install - they still don't work. When I run a script:

#!/usr/local/bin/perl
use LWP::UserAgent;
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I have:

$perl test2.pl
Can't locate LWP/UserAgent.pm in @INC (@INC contains: /usr/local/lib/p
+erl5/5.8ocal/lib/perl5/5.8.8 /usr/local/lib/perl5/site_perl/5.8.8/i68
+6-linux /usr/local/5.8.8 /usr/local/lib/perl5/site_perl .) at test2.p
+l line 2.
BEGIN failed--compilation aborted at test2.pl line 2.
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What to do with this? Many thanks in advance! Dear all, What I had after perl -V:

$perl -V
Summary of my perl5 (revision 5 version 8 subversion 8) configuration:
  Platform:
    osname=linux, osvers=2.4.21-0.13mdk, archname=i686-linux
    uname='linux natasha.mail.ru 2.4.21-0.13mdk #1 fri mar 14 15:08:06
+ est 2003 i686 unknown unknown gnulinux '
    config_args=''
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultipl
+icity=undef
    useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-fno-strict-aliasing -pipe -I/usr/local/include
+ -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2',
    cppflags='-fno-strict-aliasing -pipe -I/usr/local/include'
    ccversion='', gccversion='3.2.2 (Mandrake Linux 9.1 3.2.2-3mdk)', 
+gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=1
+2
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
+ lseeksize=8
    alignbytes=4, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -ldl -lm -lcrypt -lutil -lc
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
    libc=/lib/libc-2.3.1.so, so=so, useshrplib=false, libperl=libperl.
+a
    gnulibc_version='2.3.1'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'


Characteristics of this binary (from libperl):
  Compile-time options: PERL_MALLOC_WRAP USE_LARGE_FILES USE_PERLIO
  Built under linux
  Compiled at Nov 21 2006 16:56:10
  @INC:
    /usr/local/lib/perl5/5.8.8/i686-linux
    /usr/local/lib/perl5/5.8.8
    /usr/local/lib/perl5/site_perl/5.8.8/i686-linux
    /usr/local/lib/perl5/site_perl/5.8.8
    /usr/local/lib/perl5/site_perl
    .
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What address I have to give for the previous version? Many thanks!

Dear Rob, It turned out, I don't have Perl 5.8.0 at this location. What this means?

[root@natasha 5.8.8]# mv /usr/local/lib/perl5/site_perl/5.8.8 /usr/loc
+al/lib/perl5/site_perl/OLD_5.8.8
[root@natasha 5.8.8]# mv /usr/local/lib/perl5/site_perl/5.8.0 /usr/loc
+al/lib/perl5/site_perl/5.8.8
mv: cannot stat `/usr/local/lib/perl5/site_perl/5.8.0': No such file o
+r directory
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Comment on How to access 5.8.0 - Perl-modules in Perl 5.8.8 - what to change? Select or Download Code

Replies are listed 'Best First'.
Re: How to access 5.8.0 - Perl-modules in Perl 5.8.8 - what to change? by davorg (Chancellor) on Nov 24, 2006 at 14:09 UTC
Others have pointed out how you'll have to change the library search path. But I wanted to point out that Mandriva probably have a pre-packaged version of Perl 5.8.8 that you can install using their standard package management system (but unfortunately, I don't know enough about Mandriva to advise you on what that is or how you us it). -- <http://dave.org.uk> "The first rule of Perl club is you do not talk about Perl club." -- Chip Salzenberg	[reply]
Re: How to access 5.8.0 - Perl-modules in Perl 5.8.8 - what to change? by shmem (Chancellor) on Nov 24, 2006 at 13:48 UTC
This is the sort of questions where the output of `perl -V` would really help. Please post it. You could set the environment variable PERL5LIB to your current perl's search path, appending the search path of perl-5.8.0 and try with that. run `perl -V` to see the contents of `@INC`; see perlrun. When building perl, you are asked if you want to include any previous version's search path into the current one; you could rebuild perl and do that. But without seeing how you configured and installed perl, it's difficult to give more advice. --shmem _($_=" "x(1<<5)."?\n".q·/)Oo. G°\ / /\_¯/(q / ---------------------------- \__(m.====·.(_("always off the crowd"))."· ");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}	[reply] [d/l] [select]
Re: How to access 5.8.0 - Perl-modules in Perl 5.8.8 - what to change? by syphilis (Archbishop) on Nov 24, 2006 at 13:59 UTC
Hi, If you're just after a rough hack, and if /usr/local/lib/perl5/site_perl/5.8.8/i686-linux is empty and /usr/local/lib/perl5/site_perl/5.8.8 contains only the (empty) i686-linux directory, then you could rename the /usr/local/lib/perl5/site_perl/5.8.8 directory (to hide it from the system), and then rename /usr/local/lib/perl5/site_perl/5.8.0 to /usr/local/lib/perl5/site_perl/5.8.8. But, if there are already files in /usr/local/lib/perl5/site_perl/5.8.8 then you might lose something you want. I personally build from source on Mandrake Linux (also 9.1) - if you had done the same then /usr/local/lib/perl5/site_perl/5.8.0/i686-linux and /usr/local/lib/perl5/site_perl/5.8.0 would have been added to @INC and there would be no problem. I would have thought the same could be done with rpm packages - but I don't have any experience of them wrt perl. Cheers, Rob	[reply]