tests: Make #:references-graphs gexp test more tolerant.

* tests/gexp.scm ("gexp->derivation #:references-graphs"): Use 'lset=' instead
  of 'equal?' since the order in which references are listed in not
  guaranteed.

Merge branch 'core-updates'

tests: Adjust tests for new bootstrap Guile.

This is a followup to commit 5d6792f ("gnu: bootstrap: Create a wrapper for
guile to set the system load path.")

* tests/size.scm ("store-profile"): Expect profile of 'bash' bootstrap binary.
* tests/gexp.scm ("gexp->derivation #:references-graphs"): Expect GUILE-DRV to
  depend on 'bash' bootstrap binary.

store: 'run-with-store' initializes %CURRENT-TARGET-SYSTEM to #f.

* guix/store.scm (run-with-store): Set %CURRENT-TARGET-SYSTEM to #f.
* tests/gexp.scm ("gexp->derivation vs. %current-target-system"): New test.

Merge branch 'master' into core-updates

gexp: 'local-file' canonicalizes its file argument.

Reported by Alex Kost <alezost@gmail.com>
at <http://lists.gnu.org/archive/html/guix-devel/2015-06/msg00235.html>.

* guix/gexp.scm (local-file): Add call to 'canonicalize-path'.
* tests/gexp.scm ("one local file, symlink"): New test.

gexp: 'local-file' now defaults to non-recursive.

Reported by Alex Kost <alezost@gmail.com>
at <http://lists.gnu.org/archive/html/guix-devel/2015-06/msg00235.html>.

* guix/gexp.scm (local-file): Change #:recursive? to default to #f.
* tests/gexp.scm ("one local file", "gexp->derivation, local-file"): Adjust
  calls to 'add-to-store' and 'interned-file' accordingly.

Merge branch 'master' into core-updates

gexp: Add 'plain-file'.

* guix/gexp.scm (<plain-file>): New type.
  (plain-file, plain-file-compiler): New procedures.
* tests/gexp.scm ("one plain file"): New test.
* doc/guix.texi (G-Expressions): Document 'plain-file'.

Merge branch 'master' into gtk-rebuild

Conflicts:
	gnu/packages/gtk.scm

Merge branch 'master' into core-updates

gexp: Add 'local-file'.

* guix/gexp.scm (<local-file>): New record type.
  (local-file): New procedure.
  (local-file-compiler): New compiler.
  (gexp->sexp) <struct? thing>: Handle the case where 'lower' returns a
  file name.
  (text-file*): Update docstring.local-file doc
* tests/gexp.scm ("one local file", "gexp->derivation, local-file"): New
  tests.
* doc/guix.texi (G-Expressions): Mention local files early.  Document
  'local-file'.  Update 'text-file*' documentation.

Merge branch 'master' into core-updates

gexp: Fix handling of nativeness in nested gexps.

* guix/gexp.scm (gexp-inputs): Remove 'references' parameter; add
  #:native? and honor it.
  [add-reference-inputs]: Distinguish between native gexp inputs, and
  non-native gexp inputs.  Honor 'native?' field of list inputs.
* tests/gexp.scm ("ungexp + ungexp-native, nested"): New test.

gexp: Allow <gexp-input> objects in #:allowed-references.

* guix/gexp.scm (lower-references): Add <gexp-input> case.
* tests/gexp.scm ("gexp->derivation #:allowed-references, specific
  output"): New test.

Merge branch 'master' into core-updates

gexp: Remove special meaning of forms (PACKAGE OUTPUT) in ungexp.

* guix/gexp.scm (gexp-inputs)[add-reference-inputs]: Remove clause for
  inputs of the form (PACKAGE OUTPUT).
  (gexp->sexp)[reference->sexp]: Likewise.
* tests/gexp.scm ("input list splicing"): Change 'list' to 'gexp-input'
  for glibc:debug.
  ("text-file*"): Likewise for %bootstrap-guile:out.
  ("input list splicing + gexp-input + ungexp-native-splicing"): Remove,
  now redundant.

gexp: Export 'gexp-input' constructor.

* guix/gexp.scm (<gexp-input>)[gexp-input]: Rename to...
  [%gexp-input]: ... this.  Adjust callers accordingly.
  (gexp-input): New procedure.
  (gexp-inputs)[add-reference-inputs]: When the input is a list, check
  whether each item is already 'gexp-input?' and to not rewrap those.
  (gexp-outputs)[add-reference-output]: Likewise.
  (gexp->sexp): Likewise.
* tests/gexp.scm ("input list splicing + gexp-input +
  ungexp-native-splicing"): New test.

tests: Add an indirection for white-box testing.

* tests/gexp.scm (gexp-inputs, gexp-native-inputs, gexp-outputs,
  gexp->sexp): Make an indirection, to facilitate live testing with
  Geiser.

Merge branch 'core-updates'.