Summary of my perl5 (revision 5 version 8 subversion 5) configuration:
  Platform:
    osname=linux, osvers=2.6.9-42.elsmp, archname=i386-linux-thread-multi
    uname='linux build-i386 2.6.9-42.elsmp #1 smp sat aug 12 09:39:11 cdt 2006 i686 i686 i386 gnulinux '
    config_args='-des -Doptimize=-O2 -g -pipe -m32 -march=i386 -mtune=pentium4 -Dversion=5.8.5 -Dmyhostname=localhost -Dperladmin=root@localhost -Dcc=gcc -Dcf_by=Red Hat, Inc. -Dinstallprefix=/usr -Dprefix=/usr -Darchname=i386-linux -Dvendorprefix=/usr -Dsiteprefix=/usr -Duseshrplib -Dusethreads -Duseithreads -Duselargefiles -Dd_dosuid -Dd_semctl_semun -Di_db -Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio -Dinstallusrbinperl -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less -isr -Dinc_version_list=5.8.4 5.8.3 5.8.2 5.8.1 5.8.0'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=define use5005threads=undef useithreads=define usemultiplicity=define
    useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBUGGING -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
    optimize='-O2 -g -pipe -m32 -march=i386 -mtune=pentium4',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBUGGING -fno-strict-aliasing -pipe -I/usr/local/include -I/usr/include/gdbm'
    ccversion='', gccversion='3.4.6 20060404 (Red Hat 3.4.6-3)', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=4, prototype=define
  Linker and Libraries:
    ld='gcc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lresolv -lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc
    perllibs=-lresolv -lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
    libc=/lib/libc-2.3.4.so, so=so, useshrplib=true, libperl=libperl.so
    gnulibc_version='2.3.4'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E -Wl,-rpath,/usr/lib/perl5/5.8.5/i386-linux-thread-multi/CORE'
    cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'


Characteristics of this binary (from libperl): 
  Compile-time options: DEBUGGING MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL_IMPLICIT_CONTEXT
  Built under linux
  Compiled at Aug 12 2006 17:09:08
  %ENV:
    PERL5LIB=":/home/danielmcbrearty/lib/perl5/site_perl"
  @INC:
    /home/danielmcbrearty/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi
    /home/danielmcbrearty/lib/perl5/site_perl/5.8.5
    /home/danielmcbrearty/lib/perl5/site_perl/i386-linux-thread-multi
    /home/danielmcbrearty/lib/perl5/site_perl/5.8.4
    /home/danielmcbrearty/lib/perl5/site_perl/5.8.3
    /home/danielmcbrearty/lib/perl5/site_perl/5.8.2
    /home/danielmcbrearty/lib/perl5/site_perl/5.8.1
    /home/danielmcbrearty/lib/perl5/site_perl/5.8.0
    /home/danielmcbrearty/lib/perl5/site_perl
    /usr/lib/perl5/5.8.5/i386-linux-thread-multi
    /usr/lib/perl5/5.8.5
    /usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.4/i386-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.3/i386-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.2/i386-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.1/i386-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
    /usr/lib/perl5/site_perl/5.8.5
    /usr/lib/perl5/site_perl/5.8.4
    /usr/lib/perl5/site_perl/5.8.3
    /usr/lib/perl5/site_perl/5.8.2
    /usr/lib/perl5/site_perl/5.8.1
    /usr/lib/perl5/site_perl/5.8.0
    /usr/lib/perl5/site_perl
    /usr/lib/perl5/vendor_perl/5.8.5/i386-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.4/i386-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.3/i386-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.2/i386-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.1/i386-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.8.5
    /usr/lib/perl5/vendor_perl/5.8.4
    /usr/lib/perl5/vendor_perl/5.8.3
    /usr/lib/perl5/vendor_perl/5.8.2
    /usr/lib/perl5/vendor_perl/5.8.1
    /usr/lib/perl5/vendor_perl/5.8.0
    /usr/lib/perl5/vendor_perl
    .
</pre>

<pre>
cpan> o conf
CPAN::Config options and /home/danielmcbrearty/.cpan/CPAN/MyConfig.pm:
    commit             Commit changes to disk
    defaults           Reload defaults from disk
    init               Interactive setting of all options

    build_cache        10
    build_dir          /home/danielmcbrearty/.cpan/build
    cache_metadata     1
    cpan_home          /home/danielmcbrearty/.cpan
    dontload_hash
    ftp                /usr/kerberos/bin/ftp
    ftp_proxy          ********************
    getcwd             cwd
    gpg                /usr/bin/gpg
    gzip               /bin/gzip
    histfile           /home/danielmcbrearty/.cpan/histfile
    histsize           100
    http_proxy         **********************
    inactivity_timeout 0
    index_expire       1
    inhibit_startup_message 0
    keep_source_where  /home/danielmcbrearty/.cpan/sources
    links              /usr/bin/links
    make               /usr/bin/make
    make_arg
    make_install_arg
    makepl_arg         PREFIX=~/
                    SITELIBEXP=~/lib/perl5
                    LIB=~/lib/perl5/lib
                    INSTALLMAN1DIR=~/share/man/man1
                    INSTALLMAN3DIR=~/share/man/man3
                    INSTALLSITEMAN1DIR=~/share/man/man1
                    INSTALLSITEMAN3DIR=~/share/man/man3
    ncftp
    ncftpget
    no_proxy           *********************
    pager              /usr/bin/less
    prerequisites_policy ask
    proxy_pass         *********
    proxy_user         *********
    scan_cache         atstart
    shell              /bin/bash
    tar                /bin/tar
    term_is_latin      1
    unzip              /usr/bin/unzip
    urllist
        ftp://cpan.mirrors.skynet.be/pub/CPAN
        ftp://ftp.belnet.be/packages/cpan/
        ftp://ftp.easynet.be/pub/CPAN/
        ftp://ftp.kulnet.kuleuven.ac.be/pub/mirror/CPAN/
    wget               /usr/bin/wget