Summary of my perl5 (revision 5 version 10 subversion 1) configuration:
   
  Platform:
    osname=darwin, osvers=10.2.0, archname=darwin-multi-2level
    uname='darwin athena.slushd.dnsalias.com 10.2.0 darwin kernel version 10.2.0: tue nov 3 10:37:10 pst 2009; root:xnu-1486.2.11~1release_i386 i386 '
    config_args='-des -Dprefix=/opt/local -Dscriptdir=/opt/local/bin -Dcppflags=-I/opt/local/include -Dccflags=-O2 -arch x86_64 -Dldflags=-L/opt/local/lib -Dvendorprefix=/opt/local -Dusemultiplicity=y -D cc=/usr/bin/gcc-4.2 -D ld=/usr/bin/gcc-4.2 -D man1ext=1pm -D man3ext=3pm -D man1dir=/opt/local/share/man/man1p -D man3dir=/opt/local/share/man/man3p -D siteman1dir=/opt/local/share/man/man1 -D siteman3dir=/opt/local/share/man/man3 -D vendorman1dir=/opt/local/share/man/man1 -D vendorman3dir=/opt/local/share/man/man3 -D pager=/usr/bin/less -sR'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=undef, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='/usr/bin/gcc-4.2', ccflags ='-O2 -arch x86_64 -fno-common -DPERL_DARWIN -I/opt/local/include -no-cpp-precomp -fno-strict-aliasing -pipe -fstack-protector -I/opt/local/include',
    optimize='-O3',
    cppflags='-I/opt/local/include -no-cpp-precomp -O2 -arch x86_64 -fno-common -DPERL_DARWIN -I/opt/local/include -no-cpp-precomp -fno-strict-aliasing -pipe -fstack-protector -I/opt/local/include'
    ccversion='', gccversion='4.2.1 (Apple Inc. build 5646) (dot 1)', 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 ='-L/opt/local/lib -fstack-protector'
    libpth=/opt/local/lib /usr/lib
    libs=-ldbm -ldl -lm -lutil -lc
    perllibs=-ldl -lm -lutil -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='-L/opt/local/lib -bundle -undefined dynamic_lookup -fstack-protector'


Characteristics of this binary (from libperl): 
  Compile-time options: MULTIPLICITY PERL_DONT_CREATE_GVSV
                        PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP USE_64_BIT_ALL
                        USE_64_BIT_INT USE_LARGE_FILES USE_PERLIO
  Built under darwin
  Compiled at Feb  8 2010 22:35:23
  %ENV:
    PERL5LIB="/Users/justin/local/lib/perl5/site_perl:/Users/justin/local/lib/perl5"
  @INC:
    /Users/justin/local/lib/perl5/site_perl/5.10.1/darwin-multi-2level
    /Users/justin/local/lib/perl5/site_perl/5.10.1
    /Users/justin/local/lib/perl5/site_perl
    /Users/justin/local/lib/perl5/5.10.1/darwin-multi-2level
    /Users/justin/local/lib/perl5/5.10.1
    /Users/justin/local/lib/perl5/darwin-multi-2level
    /Users/justin/local/lib/perl5
    /opt/local/lib/perl5/site_perl/5.10.1/darwin-multi-2level
    /opt/local/lib/perl5/site_perl/5.10.1
    /opt/local/lib/perl5/vendor_perl/5.10.1/darwin-multi-2level
    /opt/local/lib/perl5/vendor_perl/5.10.1
    /opt/local/lib/perl5/vendor_perl
    /opt/local/lib/perl5/5.10.1/darwin-multi-2level
    /opt/local/lib/perl5/5.10.1
    .