gnu: Add r-gridextra. * gnu/packages/statistics.scm (r-gridextra): New variable.
gnu: Add r-gtable. * gnu/packages/statistics.scm (r-gtable): New variable.
gnu: Add r-rmarkdown. * gnu/packages/statistics.scm (r-rmarkdown): New variable. * gnu/packages/haskell.scm: Do not select libxml2 from the xml module to prevent circular package module imports.
gnu: Add r-catools. * gnu/packages/statistics.scm (r-catools): New variable.
gnu: Add r-bitops. * gnu/packages/statistics.scm (r-bitops): New variable.
gnu: Add AdaptiveSparsity. * gnu/packages/machine-learning.scm (r-adaptivesparsity): New variable.
gnu: Add r-rcpparmadillo. * gnu/packages/maths.scm (armadillo-for-rcpparmadillo): New variable. * gnu/packages/statistics.scm (r-rcpparmadillo): New variable.
gnu: Add armadillo. * gnu/packages/maths.scm (armadillo): New variable.
doc: Fix outdated claim about CRAN importer. * doc/guix.texi: The CRAN importer no longer extracts information from the HTML package description but from the package's DESCRIPTION file.
import: Drop empty list items. * guix/import/cran.scm (listify): Remove empty strings from result list.
http-client: Support basic authentication. * guix/http-client.scm (http-fetch): Add Authorization header to request when the URI contains userinfo.
gnu: Add libgit2. * gnu/packages/version-control.scm (libgit2): New variable.
gnu: mafft: Update to 7.267. * gnu/packages/bioinformatics.scm (mafft): Update to 7.267. [arguments]: Don't include mafft-homologs manpage. [inputs]: Add gawk and grep. [propagated-inputs]: Add coreutils.
gnu: rxvt-unicode: Install the terminal capability data. This provides the necessary terminal capability data, which are required by ncurses-based applications. * gnu/packages/xdisorg.scm (rxvt-unicode)[native-inputs]: Add ncurses. [arguments]: Set the destination of the terminfo files. [native-search-path]: New field. Make them automatically available to the user.
gnu: msmtp: Update to 1.6.3. * gnu/packages/mail.scm (msmtp): Update to 1.6.3. [inputs]: Add libsecret.
gnu: claws-mail: Update to 3.13.1. * gnu/packages/mail.scm (claws-mail): Update to 3.13.1.
gnu: python-cython: Update to 0.23.4. * gnu/packages/python.scm (python-cython): Update to 0.23.4.
gnu: ruby: Update to 2.2.4. This version fixes CVE-2015-7551. * gnu/packages/ruby.scm (ruby): Update to 2.2.4.
lint: The CPE name of GRUB is "grub2". Reported by Leo Famulari. * guix/scripts/lint.scm (package-name->cpe-name): Add "grub".
packages: Remove now redundant graph procedures. These procedures are now redundant with those in (guix graph) and are no longer used since commit a51cbecb. * gnu/packages.scm (vhash-refq, package-dependencies) (package-direct-dependents, package-transitive-dependents) (package-covering-dependents): Remove.