$ perl -V
Summary of my perl5 (revision 5 version 14 subversion 2) configuration:

  Platform:
    osname=darwin, osvers=11.2.0, archname=darwin-2level
    uname='darwin ganymede 11.2.0 darwin kernel version 11.2.0: tue aug 9 20:54:00 pdt 2011; root:xnu-1699.24.8~1release_x86_64 x86_64 '
    config_args='-de -Dprefix=/Users/ken/perl5/perlbrew/perls/perl-5.14.2'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=undef, usemultiplicity=undef
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-fno-common -DPERL_DARWIN -fno-strict-aliasing -pipe -fstack-protector',
    optimize='-O3',
    cppflags='-fno-common -DPERL_DARWIN -fno-strict-aliasing -pipe -fstack-protector'
    ccversion='', gccversion='4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.1.00)', gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=8, 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 =' -fstack-protector'
    libpth=/usr/lib
    libs=-ldbm -ldl -lm -lutil -lc
    perllibs=-ldl -lm -lutil -lc
    libc=, 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 -fstack-protector'


Characteristics of this binary (from libperl):
  Compile-time options: PERL_DONT_CREATE_GVSV PERL_MALLOC_WRAP
                        PERL_PRESERVE_IVUV USE_64_BIT_ALL USE_64_BIT_INT
                        USE_LARGE_FILES USE_PERLIO USE_PERL_ATOF
  Built under darwin
  Compiled at Oct 23 2011 21:06:51
  %ENV:
    PERL5LIB="/Users/ken/local/lib/perl"
    PERLBREW_BASHRC_VERSION="0.30"
    PERLBREW_HOME="/Users/ken/.perlbrew"
    PERLBREW_PATH="/Users/ken/perl5/perlbrew/bin:/Users/ken/perl5/perlbrew/perls/perl-5.14.2/bin"
    PERLBREW_PERL="perl-5.14.2"
    PERLBREW_ROOT="/Users/ken/perl5/perlbrew"
    PERLBREW_VERSION="0.30"
  @INC:
    /Users/ken/local/lib/perl
    /Users/ken/perl5/perlbrew/perls/perl-5.14.2/lib/site_perl/5.14.2/darwin-2level
    /Users/ken/perl5/perlbrew/perls/perl-5.14.2/lib/site_perl/5.14.2
    /Users/ken/perl5/perlbrew/perls/perl-5.14.2/lib/5.14.2/darwin-2level
    /Users/ken/perl5/perlbrew/perls/perl-5.14.2/lib/5.14.2
    .

$ perlbrew list
* perl-5.14.2
  /opt/local/bin/perl (5.12.3)      <--- MacPorts Perl
  /usr/bin/perl (5.12.3)            <--- System Perl
  /usr/local/bin/perl (5.14.2)      <--- Perlbrew Perl (symlink)

$ ls -l /usr/local/bin/perl
lrwxr-xr-x  1 root  wheel  52 29 Oct 04:30 /usr/local/bin/perl -> /Users/ken/perl5/perlbrew/perls/perl-5.14.2/bin/perl

$ which perl
/Users/ken/perl5/perlbrew/perls/perl-5.14.2/bin/perl