* guix/packages.scm (package-mapping): New procedure.
(package-input-rewriting): Rewrite in terms of 'package-mapping'.
* tests/packages.scm ("package-mapping"): New test.
* doc/guix.texi (Defining Packages): Document it.

This reverts commit 01fe0191,
which was unneeded because IlmBase is already listed as 'Requires'
in 'OpenEXR.pc'.

This reverts commit dfee7dae.  It causes
the linux-libre@4.9 build to hang (command-line usage works fine).

* gnu/packages/audacity.scm: Remove file and move audacity...
* gnu/packages/audio.scm: ...here.
* gnu/local.mk: Remove reference to removed file.

* guix/import/cran.scm (bioconductor-package?): Exclude Bioconductor
data packages.
(bioconductor-data-package?): New procedure.

* gnu/packages/bioinformatics.scm (sra-tools)[arguments]: Add build phase
"patch-away-glibc-conflict" to fix a definition conflict with glibc 2.25.

* gnu/packages/bioinformatics.scm (sra-tools)[arguments]: Use "modify-phases"
syntax.

* gnu/packages/bioinformatics.scm (diamond): Update to 0.8.37.

* guix/download.scm (%mirrors) <gnupg>: Use HTTP for TU Wien mirror.

* gnu/packages/kde.scm (kdevelop, kdevplatform): Update to 5.1.0.

* gnu/packages/algebra.scm (bc): Update to 1.07.
[native-inputs]: Add ed and texinfo.
[arguments]: Use default ‘configure’ phase.

* gnu/packages/algebra.scm (bc)[arguments]: Add ‘--with-readline’
to #:configure-flags.

* gnu/packages/algebra.scm: Order imports alphabetically.

* gnu/packages/graphics.scm (openexr)[arguments]: Add
'set-ilmbase-directory-in-pc-file' phase.

* gnu/services/cuirass.scm (cuirass-shepherd-service): Add 'networking'
to 'requirements'.

* guix/scripts/build.scm: Export register-root procedure.

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

* gnu/packages/gnuzilla.scm (icecat)[arguments] <#:configure-flags>:
Temporarily comment out "--with-system-icu".

* gnu/packages/gnuzilla.scm (icecat)[arguments]: Re-enable parallel build.

* gnu/packages/django.scm (python-django, python2-django)[properties]: Add
"cpe-name".

* gnu/packages/django.scm (python-django, python2-django): Update to 1.10.7.

* gnu/packages/gnupg.scm (gnupg): Update to 2.1.20.
[source]: Remove patch.
* gnu/packages/patches/gnupg-2.1-fix-Y2038-test-failure.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

* gnu/packages/python.scm (python-cython, python2-cython)[source]: Add patch.
* gnu/packages/patches/python-cython-fix-tests-32bit.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.

* gnu/packages/music.scm (moc)[inputs]: Add libogg and libvorbis.

Signed-off-by: Tobias Geerinckx-Rice <me@tobias.gr>

* gnu/packages/audio.scm (qjackctl): New variable.

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

* gnu/packages/patches/glog-gcc-5-demangling.patch: New file.
* gnu/packages/logging.scm (glog)[sources]: Add it.
* gnu/local.mk (dist_patch_DATA): Add it.

Fixes test failures related to xz compression in tests/utils.scm.

This is a followup to commit 63102406.

* guix/utils.scm (decompressed-port, compressed-port, compressed-output-port):
Split each shell argument into its own list element.

* gnu/packages/video.scm (youtube-dl): Update to 2017.04.03.

* gnu/packages/mail.scm (perl-email-simple): Update to 2.213.

* gnu/packages/mail.scm (perl-email-mime): Update to 1.940.

* gnu/packages/language.scm (perl-lingua-en-tagger): Update to 0.28.

* gnu/packages/language.scm (perl-lingua-en-number-isordinal): Update to 0.05.

* gnu/packages/language.scm (perl-lingua-en-inflect-number): Update to 1.12.

* gnu/packages/language.scm (perl-lingua-en-inflect): Update to 1.901.

* gnu/packages/language.scm (perl-lingua-en-findnumber): Update to 1.32.

* gnu/packages/databases.scm (perl-db-file): Update to 1.840.

* gnu/packages/databases.scm (perl-dbd-sqlite): Update to 1.54.

* gnu/packages/databases.scm (perl-dbd-pg): Update to 3.5.3.

Fixes a regression introduced in
3b88f376.

* tests/search-paths.scm ("evaluate-search-paths, separator is #f"):
Change the expected result to "aarch64-linux".

Reported by Thomas Sigurdsen <thomas.sigurdsen@gmail.com>
at <https://lists.gnu.org/archive/html/help-guix/2017-04/msg00007.html>.

* guix/packages.scm (expand-input): Add 'guard' form around call to
'package-source-derivation'.
* tests/packages.scm (dummy): New test.

* guix/gexp.scm (&gexp-error, &gexp-input-error): New error conditions.
(lower-object): Raise &gexp-input-error when 'lookup-compiler' returns #f.
* tests/gexp.scm ("lower-object & gexp-input-error?"): New test.
* guix/ui.scm (call-with-error-handling): Add case for 'gexp-input-error?'.