$ echo $PERL5LIB

$ 

##</code><code>##

$ perl -V
Summary of my perl5 (revision 5 version 10 subversion 1) configuration:
   
  Platform:
    osname=darwin, osvers=8.11.1, archname=darwin-2level
    uname='darwin cws-computer.local 8.11.1 darwin kernel version 8.11.1: wed oct 10 18:23:28 pdt 2007; root:xnu-792.25.20~1release_i386 i386 i386 '
    config_args='-de'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=undef, usemultiplicity=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-common -DPERL_DARWIN -no-cpp-precomp -fno-strict-aliasing -pipe -I/usr/local/include',
    optimize='-O3',
    cppflags='-no-cpp-precomp -fno-common -DPERL_DARWIN -no-cpp-precomp -fno-strict-aliasing -pipe -I/usr/local/include'
    ccversion='', gccversion='4.0.1 (Apple Computer, Inc. build 5370)', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='env MACOSX_DEPLOYMENT_TARGET=10.3 cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /usr/lib
    libs=-ldbm -ldl -lm -lc
    perllibs=-ldl -lm -lc
    libc=/usr/lib/libc.dylib, so=dylib, useshrplib=false, libperl=libperl.a
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=bundle, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags=' -bundle -undefined dynamic_lookup -L/usr/local/lib'


Characteristics of this binary (from libperl): 
  Compile-time options: PERL_DONT_CREATE_GVSV PERL_MALLOC_WRAP
                        USE_LARGE_FILES USE_PERLIO
  Built under darwin
  Compiled at Nov  5 2009 01:43:02
  @INC:
    /usr/local/lib/perl5/5.10.1/darwin-2level
    /usr/local/lib/perl5/5.10.1
    /usr/local/lib/perl5/site_perl/5.10.1/darwin-2level
    /usr/local/lib/perl5/site_perl/5.10.1
    /usr/local/lib/perl5/site_perl/5.8.6
    /usr/local/lib/perl5/site_perl
    .


##</code><code>##


PERL5LIB=$PERL5LIB:/Library/Perl/5.8.6:/System/Library/Perl/5.8.6
export PERL5LIB