gnu: Use the 'patches' field of <origin>.

* gnu/packages/autotools.scm (libtool): Add 'patches' field to the
  origin.  Remove 'inputs' field.
* gnu/packages/base.scm (findutils, gnu-make, binutils, glibc):
  Likewise.
* gnu/packages/m4.scm (m4): Likewise.
* gnu/packages/perl.scm (perl): Likewise.
* gnu/packages/readline.scm (readline): Likewise.

gnu: bootstrap: Use the bootstrap tools for <origin> patching.

* gnu/packages/bootstrap.scm (bootstrap-origin): Override the
  'patch-guile' and 'patch-inputs' fields of SOURCE.

gnu: tar: Update to 1.17.

* gnu/packages/base.scm (tar): Update to 1.17.  Remove 'arguments' and
  'inputs'.
* gnu/packages/patches/tar-gets-undeclared.patch: Remove.
* gnu-system.am (dist_patch_DATA): Remove 'tar-gets-undeclared.patch'.

gnu: linux-libre-headers: Support cross-compilation.

* gnu/packages/linux.scm (linux-libre-headers):
  When (%current-target-system) is true, pass it as the argument to
  'build-phase'.  This fixes cross-compilation.
  Reported by Mark H. Weaver <mhw@netris.org>.

gnu: Add pavucontrol.

* gnu/packages/pulseaudio.scm (pavucontrol): New variable.

gnu: qt: Propagate input mesa.

* gnu/packages/qt.scm (qt): Propagate input mesa.

gnu: qt: Do not use special SSE etc. instructions.

* gnu/packages/qt.scm (qt): Add configure flags to disable machine specific
    instructions.

gnu: qt: Add input pulseaudio.

* gnu/packages/qt.scm (qt): Add input pulseaudio.

gnu: Add Pangomm, ATKmm, and GTKmm.

* gnu/packages/gtk.scm (atk)[synopsis]: Fix typo.
  (pangomm, atkmm, gtkmm): New variables.

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: Use the 'patches' field of <origin>.

* gnu/packages/apr.scm,
  gnu/packages/autotools.scm,
  gnu/packages/avahi.scm,
  gnu/packages/cdrom.scm,
  gnu/packages/cmake.scm,
  gnu/packages/cpio.scm,
  gnu/packages/cross-base.scm,
  gnu/packages/emacs.scm,
  gnu/packages/flex.scm,
  gnu/packages/fontutils.scm,
  gnu/packages/glib.scm,
  gnu/packages/grub.scm,
  gnu/packages/guile.scm,
  gnu/packages/idutils.scm,
  gnu/packages/libevent.scm,
  gnu/packages/linux.scm,
  gnu/packages/mail.scm,
  gnu/packages/make-bootstrap.scm,
  gnu/packages/mp3.scm,
  gnu/packages/oggvorbis.scm,
  gnu/packages/pdf.scm,
  gnu/packages/plotutils.scm,
  gnu/packages/qemu.scm,
  gnu/packages/recutils.scm,
  gnu/packages/rush.scm,
  gnu/packages/scheme.scm,
  gnu/packages/system.scm,
  gnu/packages/tcsh.scm,
  gnu/packages/valgrind.scm,
  gnu/packages/vpn.scm,
  gnu/packages/w3m: Use the 'patches' field of <origin> instead of
  adding a patch as input plus using #:patches.

gnu: Add Qt 5.1.1.

* gnu/packages/qt.scm (qt): New variable.

gnu: Add Cairomm.

* gnu/packages/gtk.scm (cairomm): New variable.

gnu: Add alsa-utils.

* gnu/packages/linux.scm (alsa-utils): New variable.

gnu: xmlto: Keep references to libxml2, libxslt, and util-linux programs.

* gnu/packages/xml.scm (xmlto): Add 'arguments' field.
  [inputs]: Add libxml2 and libxslt.

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

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

gnu: pari-gp: Update to 2.5.5.

* gnu/packages/algebra.scm (pari-gp): Update to 2.5.5.

gnu: mutt: Add input gpgme.

* gnu/packages/mail.scm (mutt): Add input gpgme.

gnu: Add gpgme.

* gnu/packages/gnupg.scm (gpgme): New variable.

gnu: icu4c: Patch RUNPATH of libraries.

* gnu/packages/icu4c.scm (icu4c): Elf-patch RUNPATH of libraries, for instance
    of libicuuc.so.