Summary of my perl5 (revision 5 version 12 subversion 2) configuration:

  Platform:
    osname=freebsd, osvers=8.0-release, archname=i386-freebsd-thread-multi-64int
    uname='freebsd tetsu.jk 8.0-release freebsd 8.0-release #0: sat nov 21 15:48:17 utc 20
    config_args='-sde -Dprefix=/usr/local -Darchlib=/usr/local/lib/perl5/5.12.2/mach -Dpri
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=undef, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-DAPPLLIB_EXP="/usr/local/lib/perl5/5.12.2/BSDPAN" -DHAS_FPSETMASK
    optimize='-O2 -pipe -fno-strict-aliasing',
    cppflags='-DAPPLLIB_EXP="/usr/local/lib/perl5/5.12.2/BSDPAN" -DHAS_FPSETMASK -DHAS_FLO
    ccversion='', gccversion='4.2.1 20070719  [FreeBSD]', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=4, prototype=define
  Linker and Libraries:
    ld='cc', ldflags ='-pthread -Wl,-E  -fstack-protector -L/usr/local/lib'
    libpth=/usr/lib /usr/local/lib
    libs=-lgdbm -lm -lcrypt -lutil
    perllibs=-lm -lcrypt -lutil
    libc=, so=so, useshrplib=true, libperl=libperl.so
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='  -Wl,-R/usr/local/lib/perl5
    cccdlflags='-DPIC -fPIC', lddlflags='-shared  -L/usr/local/lib -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_INT
                        USE_ITHREADS USE_LARGE_FILES USE_PERLIO USE_PERL_ATOF
                        USE_REENTRANT_API
  Built under freebsd
  Compiled at Jan 19 2011 17:16:14
  @INC:
    /usr/local/lib/perl5/5.12.2/BSDPAN
    /usr/local/lib/perl5/site_perl/5.12.2/mach
    /usr/local/lib/perl5/site_perl/5.12.2
    /usr/local/lib/perl5/5.12.2/mach
    /usr/local/lib/perl5/5.12.2
    .