Summary of my perl5 (revision 5 version 14 subversion 1) configuration:
   
  Platform:
    osname=linux, osvers=3.0.1-gentoo-rahl, archname=i686-linux-thread-multi
    uname='linux rahl 3.0.1-gentoo-rahl #1 smp preempt fri aug 12 07:50:41 cest 2011 i686 amd athlon(tm) ii x4 645 processor authenticamd gnulinux '
    config_args='-des -Duseshrplib -Darchname=i686-linux-thread -Dcc=i686-pc-linux-gnu-gcc -Doptimize=-O2 -march=amdfam10 -pipe -mno-tls-direct-seg-refs -Dldflags=-Wl,-O1 -Wl,--as-needed -Dprefix=/usr -Dsiteprefix=/usr -Dvendorprefix=/usr -Dscriptdir=/usr/bin -Dprivlib=/usr/lib/perl5/5.14.1 -Darchlib=/usr/lib/perl5/5.14.1/i686-linux-thread-multi -Dsitelib=/usr/local/lib/perl5/5.14.1 -Dsitearch=/usr/local/lib/perl5/5.14.1/i686-linux-thread-multi -Dvendorlib=/usr/lib/perl5/vendor_perl/5.14.1 -Dvendorarch=/usr/lib/perl5/vendor_perl/5.14.1/i686-linux-thread-multi -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dsiteman1dir=/usr/share/man/man1 -Dsiteman3dir=/usr/share/man/man3 -Dvendorman1dir=/usr/share/man/man1 -Dvendorman3dir=/usr/share/man/man3 -Dman1ext=1 -Dman3ext=3pm -Dlibperl=libperl.so.5.14.1 -Dlocincpth=  -Duselargefiles -Dd_semctl_semun -Dcf_by=Gentoo -Dmyhostname=localhost -Dperladmin=root@localhost -Dinstallusrbinperl=n -Ud_csh -Uusenm -Di_ndbm -Di_gdbm -Di_db -Dusethreads -DDEBUGGING=none -Dinc_version_list=5.14.0/i686-linux-thread-multi 5.14.0 '
    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='i686-pc-linux-gnu-gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2 -march=amdfam10 -pipe -mno-tls-direct-seg-refs',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe'
    ccversion='', gccversion='4.5.3', 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='i686-pc-linux-gnu-gcc', ldflags ='-Wl,-O1 -Wl,--as-needed -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc -lgdbm_compat
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
    libc=/lib/libc-2.13.so, so=so, useshrplib=true, libperl=libperl.so.5.14.1
    gnulibc_version='2.13'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -O2 -march=amdfam10 -pipe -mno-tls-direct-seg-refs -L/usr/local/lib -Wl,-O1 -Wl,--as-needed'


Characteristics of this binary (from libperl): 
  Compile-time options: MULTIPLICITY PERL_DONT_CREATE_GVSV
                        PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP
                        PERL_PRESERVE_IVUV USE_ITHREADS USE_LARGE_FILES
                        USE_PERLIO USE_PERL_ATOF USE_REENTRANT_API
  Locally applied patches:
	0001-gentoo_MakeMaker-RUNPATH.diff
	0002-gentoo_MakeMaker-delete_packlist.diff
	0003-gentoo_config_over.diff
	0004-gentoo_cpan_definstalldirs.diff
	0005-gentoo_cpanplus_definstalldirs.diff
	0006-gentoo_create-libperl-soname.diff
	0007-gentoo_drop-fstack-protector.diff
	0008-gentoo_enc2xs.diff
	0009-gentoo_mod-paths.diff
  Built under linux
  Compiled at Aug 19 2011 10:05:24
  @INC:
    /etc/perl
    /usr/local/lib/perl5/5.14.1/i686-linux-thread-multi
    /usr/local/lib/perl5/5.14.1
    /usr/lib/perl5/vendor_perl/5.14.1/i686-linux-thread-multi
    /usr/lib/perl5/vendor_perl/5.14.1
    /usr/local/lib/perl5
    /usr/lib/perl5/vendor_perl
    /usr/lib/perl5/5.14.1/i686-linux-thread-multi
    /usr/lib/perl5/5.14.1
    .