gnu: texlive-latex-mdwtools: Fix syntax error in description.

* gnu/packages/tex.scm (texlive-latex-mdwtools)[description]: Fix texinfo
syntax error.

gnu: texlive-latex-environ: Fix invalid texinfo markup.

* gnu/packages/tex.scm (texlive-latex-environ)[description]: Fix texinfo
syntax errors.

gnu: Add mksh.

* gnu/packages/shells.scm (mksh): New variable.

gnu: Remove a left-over patch.

This is a followup to commit 426b0b898f70a58133d80779980f163a5761686e.

* gnu/packages/patches/pcre-CVE-2017-7186.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu: pcre: Update replacement to 8.41 [fixes CVE-2017-{7244,7245,7246}].

* gnu/packages/pcre.scm (pcre)[replacement]: Update to pcre-8.41.
(pcre/fixed): Replace with ...
(pcre-8.41): ... new variable.

tests: Use 'virtual-machine' records instead of monadic procedures.

* gnu/tests/base.scm (%test-basic-os): Use 'let*' instead of 'mlet*' and
'virtual-machine' instead of 'system-qemu-image/shared-store-script'.
(run-mcron-test): Likewise.
(run-nss-mdns-test): Likewise.
* gnu/tests/dict.scm (run-dicod-test): Likewise.
* gnu/tests/mail.scm (run-opensmtpd-test): Likewise.
(run-exim-test): Likewise.
* gnu/tests/messaging.scm (run-xmpp-test): Likewise.
* gnu/tests/networking.scm (run-inetd-test): Likewise.
* gnu/tests/nfs.scm (run-nfs-test): Likewise.
* gnu/tests/ssh.scm (run-ssh-test): Likewise.
* gnu/tests/web.scm (run-nginx-test): Likewise.

vm: Add a <virtual-machine> type and associated gexp compiler.

* gnu/system/vm.scm (system-qemu-image/shared-store-script): Add
 #:options parameter and honor it.
(<virtual-machine>): New record type.
(virtual-machine): New macro.
(port-forwardings->qemu-options, virtual-machine-compiler): New
procedures.

gnu: Add premake4.

* gnu/packages/build-tools.scm (premake4): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: Add java-commons-cli@1.2.

* gnu/packages/java.scm(java-commons-cli-1.2): New variable.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>

gnu: Update g-wrap to use guile-2.2.

* gnu/packages/guile.scm (g-wrap): [propagated-inputs]: Use guile-2.2.
[arguments]: Add "--disable-Werror" to configure-flags.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: Add eolie.

* gnu/packages/gnome.scm (eolie): New variable.

gnu: perl-html-template: Update to 2.97.

* gnu/packages/web.scm (perl-html-template): Update to 2.97.

gnu: openh264: Update to 1.7.0.

* gnu/packages/video.scm (openh264): Update to 1.7.0.

gnu: gnome-mpv: Update to 0.12.

* gnu/packages/video.scm (gnome-mpv): Update to 0.12.

gnu: Add 0xffff.

* gnu/packages/flashing-tools.scm (0xffff): New variable.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu: Add libusb@0.1.

* gnu/packages/libusb.scm (libusb-0.1): New variable.
* gnu/packages/patches/libusb-0.1-disable-tests.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu: lapack: Fix hash of release 3.7.1

Apparently the release was modified (cleaned-up) in-place. An issue was opened
at https://github.com/Reference-LAPACK/lapack-release/issues/4.

* gnu/packages/maths.scm (lapack): Fix sha256 hash.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>

gnu: Add patches missing from dist_patch_DATA.

Reported by Eric Bavier.

* gnu/local.mk (dist_patch_DATA): Add
gnu/packages/patches/hmmer-remove-cpu-specificity.patch,
gnu/packages/patches/jacal-fix-texinfo.patch,
gnu/packages/patches/python-pbr-fix-man-page-support.patch and
gnu/packages/patches/vsearch-unbundle-cityhash.patch.

gnu: qsyncthingtray: Update to 0.5.8.

* gnu/packages/sync.scm (qsyncthingtray): Update to 0.5.8.

gnu: dub: Update to 1.4.0.

* gnu/packages/ldc.scm (dub): Update to 1.4.0.