Synchronize package descriptions with the Womb.

* gnu/packages/algebra.scm,
  gnu/packages/aspell.scm,
  gnu/packages/autotools.scm,
  gnu/packages/base.scm,
  gnu/packages/bash.scm,
  gnu/packages/bison.scm,
  gnu/packages/cdrom.scm,
  gnu/packages/cflow.scm,
  gnu/packages/compression.scm,
  gnu/packages/cpio.scm,
  gnu/packages/cppi.scm,
  gnu/packages/ddrescue.scm,
  gnu/packages/dejagnu.scm,
  gnu/packages/ed.scm,
  gnu/packages/emacs.scm,
  gnu/packages/fdisk.scm,
  gnu/packages/freeipmi.scm,
  gnu/packages/gawk.scm,
  gnu/packages/gcal.scm,
  gnu/packages/gcc.scm,
  gnu/packages/gdb.scm,
  gnu/packages/gdbm.scm,
  gnu/packages/gettext.scm,
  gnu/packages/ghostscript.scm,
  gnu/packages/global.scm,
  gnu/packages/gnunet.scm,
  gnu/packages/gnupg.scm,
  gnu/packages/gnutls.scm,
  gnu/packages/gperf.scm,
  gnu/packages/gprolog.scm,
  gnu/packages/groff.scm,
  gnu/packages/grub.scm,
  gnu/packages/gsasl.scm,
  gnu/packages/guile.scm,
  gnu/packages/gv.scm,
  gnu/packages/help2man.scm,
  gnu/packages/idutils.scm,
  gnu/packages/indent.scm,
  gnu/packages/less.scm,
  gnu/packages/libidn.scm,
  gnu/packages/libsigsegv.scm,
  gnu/packages/libunistring.scm,
  gnu/packages/lightning.scm,
  gnu/packages/linux.scm,
  gnu/packages/lsh.scm,
  gnu/packages/m4.scm,
  gnu/packages/mail.scm,
  gnu/packages/maths.scm,
  gnu/packages/multiprecision.scm,
  gnu/packages/nano.scm,
  gnu/packages/ncurses.scm,
  gnu/packages/nettle.scm,
  gnu/packages/ocrad.scm,
  gnu/packages/oggvorbis.scm,
  gnu/packages/parted.scm,
  gnu/packages/plotutils.scm,
  gnu/packages/pth.scm,
  gnu/packages/readline.scm,
  gnu/packages/recutils.scm,
  gnu/packages/rush.scm,
  gnu/packages/scheme.scm,
  gnu/packages/screen.scm,
  gnu/packages/shishi.scm,
  gnu/packages/smalltalk.scm,
  gnu/packages/system.scm,
  gnu/packages/texinfo.scm,
  gnu/packages/time.scm,
  gnu/packages/unrtf.scm,
  gnu/packages/version-control.scm,
  gnu/packages/wdiff.scm,
  gnu/packages/wget.scm,
  gnu/packages/which.scm,
  gnu/packages/xnee.scm,
  gnu/packages/zile.scm: Change value of the 'description' field to that
  of the Womb.

gnu: Gracefully handle circular dependencies between 'base' and 'linux'.

* gnu/packages/base.scm (linux-libre-headers-boot0): Turn into a thunk.
  User updated.

Merge branch 'core-updates'

gnu: glibc: Fix 'ldd' on x86_64.

Reported by Cyril Roelandt at
<https://lists.gnu.org/archive/html/guix-devel/2013-09/msg00136.html>.

* gnu/packages/patches/glibc-ldd-x86_64.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/base.scm (glibc): Use it.

gnu: glibc: Upgrade to 2.18.

* gnu/packages/base.scm (glibc): Upgrade to 2.18.

gnu: tzdata: Fix hash of tzcode tarball.

Fixes <http://bugs.gnu.org/15153>.

* gnu/packages/base.scm (tzdata): Update tzcode hash, which was modified
  upstream.

gnu: tzdata: Update hash.

Fixes <http://bugs.gnu.org/14890>.
Reported by Andreas Enge <andreas@enge.fr>.

* gnu/packages/base.scm (tzdata): Update hash.

Merge branch 'core-updates'

gnu: tzdata: Upgrade to 2013d.

* gnu/packages/base.scm (tzdata): Upgrade to 2013d.

gnu: gcc: Add Texinfo to the native inputs.

* gnu/packages/gcc.scm (gcc-4.7): Add `native-inputs' field.
  (gcc-4.8): Remove outdated comment.
* gnu/packages/base.scm (gcc-boot0): Add `native-inputs' field.

gnu: Add a "debug" output for some packages.

* gnu/packages/base.scm (coreutils, gnu-make, glibc): Add a "debug" output.
* gnu/packages/bdw-gc.scm (libgc): Likewise.
* gnu/packages/guile.scm (guile-2.0): Likewise.
* gnu/packages/libffi.scm (libffi): Likewise.
* gnu/packages/multiprecision.scm (gmp, mpfr, mpc): Likewise.

build-system/gnu: Unify with (guix build-system gnu-cross-build).

* guix/build/gnu-build-system.scm (set-paths): Add `native-inputs' and
  `native-search-paths' keyword parameters.  Honor them.
  (configure): Add `target' and `native-inputs' keyword parameters.
  Look for Bash in NATIVE-INPUTS or INPUTS.  Pass `--host' when TARGET
  is true.
  (strip): Add `strip-command' keyword parameter.  Use it.
* guix/build/gnu-cross-build.scm: Remove.
* Makefile.am (MODULES): Adjust accordingly.
* gnu/packages/acl.scm, gnu/packages/attr.scm, gnu/packages/base.scm,
  gnu/packages/bash.scm, gnu/packages/gawk.scm,
  gnu/packages/gettext.scm, gnu/packages/guile.scm,
  gnu/packages/libffi.scm, gnu/packages/libsigsegv.scm,
  gnu/packages/linux.scm, gnu/packages/ncurses.scm,
  gnu/packages/readline.scm, guix/build-system/gnu.scm: Replace
  `%standard-cross-phases' by `%standard-phases'.  Remove references
  to (guix build gnu-cross-build).

gnu: findutils: Fix cross-compilation.

* gnu/packages/base.scm (findutils): Reinstate cross-compilation
  #:configure-flags.

gnu: sed: Allow cross-compilation.

* gnu/packages/base.scm (sed): Keep the default phases
  when (%current-target-system) is true.

gnu: coreutils: Allow cross-compilation.

* gnu/packages/base.scm (coreutils): Remove Perl input
  when (%current-target-system) is true.  Use %standard-cross-phases as
  the base when (%current-target-system) is true.

gnu: Add tzdata.

* gnu/packages/base.scm (tzdata): New variable.

Merge branch 'core-updates'

gnu: patch: Update to 2.7.1.

* gnu/packages/base.scm (patch): Update to 2.7.1.

gnu: Binutils 2.23.2 and GCC 4.7.3.

* gnu/packages/base.scm (binutils): Update to 2.23.2.
  (binutils-2.23, ld-wrapper-2.23): Remove.
  (gcc-4.8): Move to...
* gnu/packages/gcc.scm (gcc-4.8): ... here.
  (gcc-4.7): Update to 4.7.3.  Add dependencies on ISL, CLooG, libelf,
  and zlib.

gnu: diffutils: Update to 3.3.

* gnu/packages/base.scm (diffutils): Update to 3.3.