Summary of my perl5 (revision 5 version 10 subversion 1) configuration:
   
  Platform:
    osname=linux, osvers=2.6.12.6-xen, archname=i686-linux-thread-multi
    uname='linux os-rh9 2.6.12.6-xen #1 smp tue jan 31 15:36:43 gmt 2006 i686 athlon i386 gnulinux '
    config_args='-Dusethreads -Duseshrplib -Dldflags=-ldb-4.0 -Dcc=/usr/local/bin/gcc  -Dprefix=/usr/local/perl/5.10.1 -Dsiteprefix=/usr/local/perl/site_perl/5.10.1 -Dvendorprefix=/usr/local/perl/vendor_perl/5.10.1 -Uinstallusrbinperl -Uusemymalloc -des'
    hint=recommended, useposix=true, d_sigaction=define
    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='/usr/local/bin/gcc ', ccflags ='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe -I/usr/local/include'
    ccversion='', gccversion='3.2.2 20030222 (Red Hat Linux 3.2.2-5)', 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='/usr/local/bin/gcc ', ldflags ='-ldb-4.0 -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
    libc=/lib/libc-2.3.2.so, so=so, useshrplib=true, libperl=libperl.so
    gnulibc_version='2.3.2'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E -Wl,-rpath,/usr/local/perl/5.10.1/lib/5.10.1/i686-linux-thread-multi/CORE'
    cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib'


Characteristics of this binary (from libperl): 
  Compile-time options: MULTIPLICITY PERL_DONT_CREATE_GVSV
                        PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP USE_ITHREADS
                        USE_LARGE_FILES USE_PERLIO USE_REENTRANT_API
  Built under linux
  Compiled at Dec 23 2010 03:51:09
  @INC:
    /usr/local/perl/5.10.1/lib/5.10.1/i686-linux-thread-multi
    /usr/local/perl/5.10.1/lib/5.10.1
    /usr/local/perl/site_perl/5.10.1/lib/site_perl/5.10.1/i686-linux-thread-multi
    /usr/local/perl/site_perl/5.10.1/lib/site_perl/5.10.1
    /usr/local/perl/vendor_perl/5.10.1/lib/vendor_perl/5.10.1/i686-linux-thread-multi
    /usr/local/perl/vendor_perl/5.10.1/lib/vendor_perl/5.10.1
    /usr/local/perl/vendor_perl/5.10.1/lib/vendor_perl
    .