gnu: ruby-ffi: Move to libffi.scm.

* gnu/packages/ruby.scm (ruby-ffi): Move from here ...
* gnu/packages/libffi.scm: ... to here.

Merge branch 'staging'

Merge branch 'master' into staging

gnu: ruby-pry: Update to 0.11.1.

* gnu/packages/ruby.scm (ruby-pry): Update to 0.11.1.
[propagated-inputs]: Remove ruby-slop-3.

gnu: ruby-method-source: Update to 0.9.0.

* gnu/packages/ruby.scm (ruby-method-source): Update to 0.9.0.
[arguments]: Use "spec" test target.
[native-inputs]: Remove ruby-bacon, add ruby-rspec.

gnu: Add ruby-rubyzip.

* gnu/packages/ruby.scm (ruby-rubyzip): New variable.

Co-authored by Ben Woodcroft <donttrustben@gmail.com>.

gnu: Add ruby-progress_bar.

* gnu/packages/ruby.scm (ruby-progress_bar): New variable.

gnu: Add ruby-highline.

* gnu/packages/ruby.scm (ruby-highline): New variable.

gnu: Add ruby-code-statistics.

* gnu/packages/ruby.scm (ruby-code-statistics): New variable.

gnu: Add ruby-options.

* gnu/packages/ruby.scm (ruby-options): New variable.

gnu: Add ruby-multi-json.

* gnu/packages/ruby.scm (ruby-multi-json): New variable.

gnu: Add ruby-httpclient.

* gnu/packages/ruby.scm (ruby-httpclient): New variable.

gnu: ruby: Fix build failures after updating to 2.4.2.

* gnu/packages/ruby.scm (gem-directory): New procedure.
(ruby-ansi, ruby-ae)[arguments]: Use it to determine gem install directory
instead of relying on the ruby (patch) version.

gnu: Use 'modify-phases' syntax.

* gnu/packages/admin.scm (mingetty, clusterssh, wpa-supplicant-minimal,
wpa-supplicant, wakelan, acpica, tree, direvent, dstat)[arguments]: Use
'modify-phases' syntax.
* gnu/packages/algebra.scm (arb)[arguments]: Likewise.
* gnu/packages/apr.scm (apr-util)[arguments]: Likewise.
* gnu/packages/audio.scm (clalsadrv, fluidsynth, faad2, lv2-mda-piano,
lv2-mda-epiano, timidity++, vamp, soundtouch, portaudio, rsound,
zita-convolver, zita-alsa-pcmi)[arguments]: Likewise.
* gnu/packages/backup.scm (rdup, btar)[arguments]: Likewise.
* gnu/packages/bioinformatics.scm (bedops, bwa, crossmap, express,
flexbar, grit, hisat, ngs-sdk, subread)[arguments]: Likewise.
* gnu/packages/bittorrent.scm (transmission)[arguments]: Likewise.
* gnu/packages/cdrom.scm (cd-discid)[arguments]: Likewise.
* gnu/packages/compression.scm (sharutils)[arguments]: Likewise.
* gnu/packages/conky.scm (conky)[arguments]: Likewise.
* gnu/packages/databases.scm (bdb, bdb-5.3)[arguments]: Likewise.
* gnu/packages/debug.scm (delta, c-reduce)[arguments]: Likewise.
* gnu/packages/display-managers.scm (slim)[arguments]: Likewise.
* gnu/packages/dns.scm (dnsmasq)[arguments]: Likewise.
* gnu/packages/emacs.scm (geiser, emacs-wget, bbdb)[arguments]: Likewise.
* gnu/packages/engineering.scm (pcb)[arguments]: Likewise.
* gnu/packages/firmware.scm (ath9k-htc-firmware)[arguments]: Likewise.
* gnu/packages/flashing-tools.scm (flashrom)[arguments]: Likewise.
* gnu/packages/fltk.scm (fltk)[arguments]: Likewise.
* gnu/packages/freedesktop.scm (python-pyxdg)[arguments]: Likewise.
* gnu/packages/gd.scm (perl-gd)[arguments]: Likewise.
* gnu/packages/gkrellm.scm (gkrellm)[arguments]: Likewise.
* gnu/packages/glib.scm (glibmm)[arguments]: Likewise.
* gnu/packages/gl.scm (glew)[arguments]: Likewise.
* gnu/packages/gnome.scm (icon-naming-utils, orbit2, libbonobo, gnome-vfs,
libgnome, libbonoboui, goffice-0.8, dconf)[arguments]: Likewise.
* gnu/packages/gprolog.scm (gprolog)[arguments]: Likewise.
* gnu/packages/gps.scm (gpscorrelate)[arguments]: Likewise.
* gnu/packages/graphics.scm (agg)[arguments]: Likewise.
* gnu/packages/gtk.scm (ganv, girara, gtksourceview-2, guile-present,
python2-pycairo)[arguments]: Likewise.
* gnu/packages/guile.scm (guile-1.8)[arguments]: Likewise.
* gnu/packages/guile-wm.scm (guile-wm)[arguments]: Likewise.
* gnu/packages/hugs.scm (hugs)[arguments]: Likewise.
* gnu/packages/hurd.scm (gnumach-headers, hurd-headers, hurd-minimal)
[arguments]: Likewise.
* gnu/packages/image-viewers.scm (feh, sxiv)[arguments]: Likewise.
* gnu/packages/libcanberra.scm (libcanberra)[arguments]: Likewise.
* gnu/packages/linux.scm (bridge-utils, iw, fuse, unionfs-fuse/static,
lm-sensors, i2c-tools, xsensors, perf, mdadm, libaio, module-init-tools)
[arguments]: Likewise.
* gnu/packages/lisp.scm (ccl)[arguments]: Likewise.
* gnu/packages/lout.scm (lout)[arguments]: Likewise.
* gnu/packages/lua.scm (luajit)[arguments]: Likewise.
* gnu/packages/machine-learning.scm (shogun)[arguments]: Likewise.
* gnu/packages/mail.scm (exim)[arguments]: Likewise.
* gnu/packages/man.scm (man-pages, txt2man)[arguments]: Likewise.
* gnu/packages/maths.scm (lapack, superlu-dist, openlibm, openspecfun)
[arguments]: Likewise.
* gnu/packages/messaging.scm (bitlbee)[arguments]: Likewise.
* gnu/packages/mp3.scm (libmad, id3lib, mp3info)[arguments]: Likewise.
* gnu/packages/music.scm (solfege)[arguments]: Likewise.
* gnu/packages/noweb.scm (noweb)[arguments]: Likewise.
* gnu/packages/patchutils.scm (patchutils, quilt, colordiff)[arguments]:
Likewise.
* gnu/packages/pdf.scm (xpdf, zathura-cb, zathura-ps, zathura-djvu,
zathura-pdf-poppler, zathura, podofo, fbida)[arguments]: Likewise.
* gnu/packages/perl.scm (perl-file-list, perl-test-harness)[arguments]:
Likewise.
* gnu/packages/photo.scm (gphoto2)[arguments]: Likewise.
* gnu/packages/popt.scm (popt)[arguments]: Likewise.
* gnu/packages/pretty-print.scm (source-highlight, astyle)[arguments]:
Likewise.
* gnu/packages/pumpio.scm (pumpa)[arguments]: Likewise.
* gnu/packages/python.scm (python-passlib, python-pycrypto, python2-empy,
python-sqlalchemy, python-docopt)[arguments]: Likewise.
* gnu/packages/rdf.scm (lrdf)[arguments]: Likewise.
* gnu/packages/regex.scm (tre)[arguments]: Likewise.
* gnu/packages/rrdtool.scm (rrdtool)[arguments]: Likewise.
* gnu/packages/ruby.scm (ruby-2.1, ruby-1.8)[arguments]: Likewise.
* gnu/packages/sawfish.scm (sawfish)[arguments]: Likewise.
* gnu/packages/scheme.scm (racket)[arguments]: Likewise.
* gnu/packages/sdl.scm (guile-sdl)[arguments]: Likewise.
* gnu/packages/serveez.scm (serveez)[arguments]: Likewise.
* gnu/packages/skribilo.scm (skribilo)[arguments]: Likewise.
* gnu/packages/smalltalk.scm (smalltalk)[arguments]: Likewise.
* gnu/packages/suckless.scm (dmenu, slock)[arguments]: Likewise.
* gnu/packages/tcl.scm (expect)[arguments]: Likewise.
* gnu/packages/telephony.scm (commoncpp)[arguments]: Likewise.
* gnu/packages/textutils.scm (recode, libgtextutils)[arguments]:
Likewise.
* gnu/packages/time.scm (time)[arguments]: Likewise.
* gnu/packages/tor.scm (privoxy)[arguments]: Likewise.
* gnu/packages/uucp.scm (uucp)[arguments]: Likewise.
* gnu/packages/video.scm (libdvdnav-4)[arguments]: Likewise.
* gnu/packages/web-browsers.scm (lynx)[arguments]: Likewise.
* gnu/packages/web.scm (tinyproxy)[arguments]: Likewise.
* gnu/packages/wicd.scm (wicd)[arguments]: Likewise.
* gnu/packages/wm.scm (bspwm)[arguments]: Likewise.
* gnu/packages/xdisorg.scm (sxhkd, xcape)[arguments]: Likewise.
* gnu/packages/xfce.scm (xfconf)[arguments]: Likewise.
* gnu/packages/xfig.scm (transfig)[arguments]: Likewise.
* gnu/packages/xorg.scm (imake)[arguments]: Likewise.

gnu: ruby: Remove graft for 2.4.2.

* gnu/packages/ruby.scm (ruby): Update to 2.4.2.
[replacement]: Remove field.
(ruby-2.4.2): Remove variable.

Merge branch 'master' into staging

gnu: ruby-2.2: Update to 2.2.8.  Fix CVE-2017-{0898,10784,14033,14064}.

* gnu/packages/ruby.scm (ruby-2.2): Update to 2.2.8.
[source]: Remove patch.
* gnu/packages/patches/ruby-2.2.7-rubygems-2613-ruby22.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu: ruby-2.3: Update to 2.3.5.  Fix CVE-2017-{0898,10784,14033,14064}.

* gnu/packages/ruby.scm (ruby-2.3): Update to 2.3.5.
[source]: Remove patch.
* gnu/packages/patches/ruby-2.3.4-rubygems-2613-ruby23.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

ruby: Update replacement to 2.4.2.  Fix CVE-2017-{0898,10784,14033,14064}.

* gnu/packages/ruby.scm (ruby): Update replacement to 2.4.2.
(ruby-2.4.1): Rename to ...
(ruby-2.4.2): ... this.
[source]: Remove patches.
* gnu/packages/patches/ruby-rubygems-2612-ruby24.patch,
gnu/packages/patches/ruby-rubygems-2613-ruby24.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Remove them.

gnu: ruby-activesupport: Update to 5.1.4.

* gnu/packages/ruby.scm (ruby-activesupport): Update to 5.1.4.