* doc/guix-cookbook.texi (A Scheme Crash Course)
(Extended example): Use @result{}, @print{}, and @error{}.

* doc/guix-cookbook.texi: Use Texinfo quotes ``like this'' instead of
straight quotes or curly quotes.

* doc/guix-cookbook.texi (Direct checkout hacking): Refer to "Running
Guix Before It Is Installed".

* doc/guix-cookbook.texi: Use @lisp instead of @example where
appropriate.

* tests/build-utils.scm ("wrap-script, simple case"): Use the real
'which' instead of mocking it.

* tests/build-utils.scm ("wrap-script, raises condition"): Use 'guard'
instead of "catch 'srfi-34".

* gnu/packages/linux.scm (linux-libre-5.3-version): Update to 5.3.13.
(linux-libre-5.3-pristine-source): Update hash.

* gnu/packages/linux.scm (linux-libre-4.19-version): Update to 4.19.86.
(linux-libre-4.19-pristine-source): Update hash.

* gnu/packages/linux.scm (linux-libre-4.14-version): Update to 4.14.156.
(linux-libre-4.14-pristine-source): Update hash.

* gnu/packages/admin.scm (netcat-openbsd): New variable.

* gnu/packages/statistics.scm (r-rrcov): Update to 1.4-9.

* gnu/packages/cran.scm (r-future): Update to 1.15.1.

* gnu/packages/cran.scm (r-epi): Update to 2.40.

* gnu/packages/cran.scm (r-vioplot): Update to 0.3.3.

* gnu/packages/mes.scm (mes): Update to 0.21.

* gnu/packages/guile-xyz.scm (guile-gi): Update to 0.2.1.
[arguments]: Add phase to start Xorg server for tests.
[native-inputs]: Add xorg-server.

* gnu/packages/music.scm (bsequencer): New variable.

* gnu/packages/cran.scm (r-bookdown): Update to 0.16.

* gnu/packages/cran.scm (r-protviz): Update to 0.5.1.
[inputs]: Remove perl and python-2.

* gnu/packages/cran.scm (r-rnifti): Update to 1.0.0.

* gnu/packages/cran.scm (r-tidytree): Update to 0.3.0.

* gnu/packages/cran.scm (r-sjplot): Update to 2.8.0.
[propagated-inputs]: Remove r-broom and r-nlme; add r-effectsize and
r-parameters.

* gnu/packages/cran.scm (r-tidyverse): Update to 1.3.0.
[propagated-inputs]: Add r-pillar.

* gnu/packages/cran.scm (r-parameters): Update to 0.3.0.

* gnu/packages/cran.scm (r-abn): Update to 2.2.

* gnu/packages/cran.scm (r-limsolve): Update to 1.5.6.

* gnu/packages/cran.scm (r-prodlim): Update to 2019.11.13.

* gnu/packages/cran.scm (r-webshot): Update to 0.5.2.

* gnu/packages/cran.scm (r-insight): Update to 0.7.0.

* gnu/packages/cran.scm (r-effectsize): New variable.

* gnu/packages/statistics.scm (r-rcppeigen): Update to 0.3.3.7.0.

* gnu/packages/statistics.scm (r-rlang): Update to 0.4.2.

* gnu/packages/statistics.scm (r-digest): Update to 0.6.23.

* gnu/packages/statistics.scm (r-pheatmap): Move from here...
* gnu/packages/cran.scm (r-pheatmap): ...to here.

* gnu/packages/cran.scm (r-scales): Update to 1.1.0.
[propagated-inputs]: Remove r-rcpp; add r-farver and r-lifecycle.

* gnu/packages/statistics.scm (r-scales): Move variable from here...
* gnu/packages/cran.scm (r-scales): ...to here.

* gnu/packages/datastructures.scm (sdsl-lite)[source]: Remove bundled
libraries in a snippet. Add patch to link to external libraries.
[arguments]: Add phase to install static library.
[native-inputs]: Add libdivsufsort.

Documentation also wants graphviz, which drastically increases
'guiz size sdsl-lite'.

* gnu/packages/datastructures.scm (sdsl-lite)[native-inputs]: Remove
doxygen.

* gnu/packages/bioinformatics.scm (libdivsufsort): Move to ...
* gnu/packages/datastructures.scm: ... here.

* gnu/packages/boost.scm (boost-static): New variable.