gnu: cups: Update to 2.2.4.

* gnu/packages/cups.scm (cups, cups-minimal): Update to 2.2.4.

gnu: cups-filters: Update to 1.14.1.

* gnu/packages/cups.scm (cups-filters): Update to 1.14.1.

gnu: mesa: Update to 17.1.4.

* gnu/packages/gl.scm (mesa): Update to 17.1.4.

gnu: glibc: Fix build on i686.

This is followup to 503a4df904b8d4b82caebdb17db9c5f76a952418.
Fixes <https://bugs.gnu.org/27489>.

* gnu/packages/base.scm (glibc/linux): Add
"glibc-vectorized-strcspn-guards.patch" to patches.

system: Avoid collision between GMP variants in the global profile.

* gnu/system.scm (%base-packages): Move GUILE-2.2 out of the list passed
to 'canonical-package'.

Merge branch 'master' into core-updates

system: Use "@" to refer to the 'shadow' package.

Reported by Mark H Weaver
at <https://lists.gnu.org/archive/html/guix-devel/2017-06/msg00349.html>.

* gnu/system.scm (%base-packages): Use '@' for shadow.  This fixes an
error on Guile 2.0 where 'shadow' alone resolves to the (gnu system
shadow) module.

gnu: shishi: Build with latest libgcrypt.

* gnu/packages/patches/shishi-fix-libgcrypt-detection.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/kerberos.scm (shishi)[source]: Use it.
[inputs]: Use libgcrypt instead of libgcrypt-1.5.
[arguments]: Set 'ac_cv_libgcrypt=yes' in #:configure-flags.
* gnu/packages/gnupg.scm (libgcrypt-1.5): Remove variable.

gnu: poppler: Integrate grafted update.

* gnu/packages/pdf.scm (poppler): Update to 0.56.0.
[replacement]: Remove field.
(poppler-qt4, poppler-qt5): Use (inherit) instead of (package/inherit).

gnu: libgcrypt: Integrate grafted update.

* gnu/packages/gnupg.scm (libgcrypt): Update to 1.7.8.
[replacement]: Remove field.
(libgcrypt-1.7.8): Remove variable.
(libgcrypt-1.5)[replacement]: Remove field.

gnu: linux-libre: Update to 4.11.8.

* gnu/packages/linux.scm (%linux-libre-version): Update to 4.11.8.
(%linux-libre-hash): Update hash.

gnu: linux-libre@4.9: Update to 4.9.35.

* gnu/packages/linux.scm (linux-libre-4.9): Update to 4.9.35.

gnu: linux-libre@4.4: Update to 4.4.75.

* gnu/packages/linux.scm (linux-libre-4.4): Update to 4.4.75.

gnu: linux-libre@4.1: Update to 4.1.42 [mitigates CVE-2017-1000364].

* gnu/packages/linux.scm (linux-libre-4.1): Update to 4.1.42.

maint: Disk image size is automatically guessed.

* Makefile.am (GUIXSD_VM_IMAGE_SIZE): Remove.
(release): Remove --image-size argument from 'guix system disk-image'
command.

vm: Use 'fold2' from (guix combinators).

* gnu/build/vm.scm: Use (guix combinators).
(fold2): Remove.

vm: Estimate the disk size by default.

* gnu/build/vm.scm (estimated-partition-size): New procedure.
* gnu/system/vm.scm (expression->derivation-in-linux-vm):
Change #:disk-image-size default to 'guess.
[builder]: When DISK-IMAGE-SIZE is 'guess, use
'estimated-partition-size' and compute and estimate of the image size.
(qemu-image): Likewise.
* guix/build/store-copy.scm (file-size, closure-size): New procedures.
* guix/scripts/system.scm (%default-options): Change 'image-size' to
'guess.
* doc/guix.texi (Building the Installation Image): Remove '--image-size'
flag from example.
(Invoking guix system): Document the image size estimate.

vm: Display the disk and partition sizes.

* gnu/build/vm.scm (load-in-linux-vm): Add 'format' call when
MAKE-DISK-IMAGE? is true.
(initialize-partition-table): Show the size of the partitions being
created.

vm: Fix 'load-in-linux-vm' docstring.

* gnu/build/vm.scm (load-in-linux-vm): Change default value of
  #:disk-image-size.  Update docstring to note that DISK-IMAGE-SIZE is
  in bytes.

build: Remove check for broken (srfi srfi-37).

This was for Guile < 2.0.9 and we've been requiring 2.0.9+ for some time
already.

* configure.ac: Remove 'GUIX_CHECK_SRFI_37' use and 'INSTALL_SRFI_37'
conditional.
* Makefile.am: Remove code in "if INSTALL_SRFI_37".
(EXTRA_DIST): Remove srfi/srfi-37.scm.in.
* srfi/srfi-37.scm.in: Remove.
* m4/guix.m4 (GUIX_CHECK_SRFI_37): Remove.