* gnu/packages/gettext.scm (gettext): Rename to...
(gnu-gettext): ... this. This is used to work around the circular
dependency introduced in commit c42a4b7, which users with a #:renamer
cannot cope with.
* gnu/packages/acl.scm, gnu/packages/attr.scm, gnu/packages/cdrom.scm,
gnu/packages/fdisk.scm, gnu/packages/gkrellm.scm, gnu/packages/glib.scm,
gnu/packages/gnunet.scm, gnu/packages/grub.scm, gnu/packages/linux.scm,
gnu/packages/maths.scm, gnu/packages/nano.scm, gnu/packages/parted.scm,
gnu/packages/system.scm, gnu/packages/version-control.scm,
gnu/packages/vpn.scm, gnu/packages/w3m.scm, gnu/packages/wget.scm:
Adjust accordingly.
* gnu/packages/maths.scm (pspp): Add cairo and further necessary inputs.
* gnu/packages/patches/pspp-tests.patch: New file, thanks to
John Darrington <john@darrington.wattle.id.au>.
* gnu-system.am (dist_patch_DATA): Register patch.