* Makefile.am (TESTS_ENVIRONMENT): Add `--no-auto-compile'.

* guix/build/gnu-build-system.scm (configure): Change `--libdir' and
  `--includedir' to LIBDIR + "/lib" and INCLUDEDIR + "/include",
  respectively.

We were already relying on the new version in `set-build-options', so
this patch fixes that.

* guix/store.scm (%protocol-version): Increase.
  (open-connection)[reserve-space?]: New argument.  Pass it to the
  server when it's recent enough.

* guix/derivations.scm (write-derivation): Sorte OUTPUTS, INPUTS,
  SOURCES, and ENV-VARS alphabetically.
  (derivation-hash): Leave INPUTS, SOURCES, and OUTPUTS unsorted.
  (derivation)[env-vars-with-empty-outputs]: Leave ENV-VARS unsorted.

* configure.ac: Add `AM_GNU_GETTEXT_VERSION'.  Suggested by
  Antono Vasiljev.

* guix/derivations.scm (derivation-hash): Reorder OUTPUTS.
* tests/derivations.scm ("multiple-output derivation, non-alphabetic
  order"): New test.

* guix/packages.scm (<package>)[propagated-inputs, properties]: New
  fields.
  (package-derivation): Update `match' clause.

* README: Require libgcrypt or libchop.

* Makefile.am (MODULES): Move `guix/utils.scm' first.

* configure.ac: Use "Guix", not "guix", as the package name.

* guix-build.in: New file.

* configure.ac: Emit `guix-build'.  Add `commands-exec'.
* Makefile.am (bin_SCRIPTS): New variable.
* po/POTFILES.in: Add `guix-build.in'.

* guix/derivations.scm (derivation-prerequisites,
  derivation-prerequisites-to-build): New procedures.

* tests/derivations.scm ("build-expression->derivation and
  derivation-prerequisites", "build-expression->derivation and
  derivation-prerequisites-to-build"): New tests.

* guix/store.scm (valid-path?): New procedure.

* tests/builders.scm ("http-fetch", "gnu-build"): Use it.
* tests/derivations.scm ("add-to-store, flat", "add-to-store,
  recursive", "derivation with no inputs", "build derivation with 1
  source", "build derivation with coreutils",
  "build-expression->derivation with expression returning #f"):
  Likewise.

* guix/store.scm (set-build-options)[build-cores, use-substitutes?]: New
  keyword parameters.
  [send]: Change to expect a type, and use `write-arg'.
  Send settings for BUILD-CORES and USE-SUBSTITUTES? when the server
  supports it.

* Makefile.am (MODULES): Add `distro.scm'.

* distro.scm: New file.
* po/POTFILES.in: Add it.

* tests/packages.scm ("find-packages-by-name", "find-packages-by-name
  with version"): New tests.

* guix/utils.scm (sha256): Add a libgcrypt-based implementation using
  the FFI.

* Makefile.am (EXTRA_DIST): Add `build-aux/config.rpath'.
  (SUBDIRS, ACLOCAL_AMFLAGS): New variables.

* configure.ac: Use `AM_GNU_GETTEXT'.  Emit `po/Makefile.in'.

* po/Makevars, po/POTFILES.in: New files.

* guix/packages.scm (<package>)[arguments]: Default to '().

* distro/base.scm (libsigsegv, gawk): New packages.
  (hello): Use GAWK instead of (nixpkgs-derivation "gawk").

* guix/derivations.scm (derivation): Remove duplicates from INPUT.

* guix/build-system/gnu.scm (%standard-inputs): Add GNU Awk.

* guix/packages.scm (<package>)[home-page]: New field.

* distro/base.scm (hello)[home-page]: Initialize.

* guix/packages.scm (<location>): New record type.
  (location, source-properties->location): New procedures.
  (<package>)[location]: New field.

* tests/packages.scm ("GNU Hello"): Test `package-location'.

* guix/utils.scm (compile-time-value): Move to the top.
  (sha256): Add an implementation that uses Coreutils, for when libchop
  is unavailable.

* guix/utils.scm (compile-time-value): New macro.
  (%nixpkgs-directory): Use it.

* guix/build-system/gnu.scm (%standard-inputs): Likewise.

* Makefile.am (MODULES): Add `guix/packages.scm' and `distro/base.scm'.
  (TESTS): Add `tests/packages.scm'.
  (EXTRA_DIST): New variable.

* guix/packages.scm, distro/base.scm, tests/packages.scm: New files.

* guix/http.scm (http-fetch): Make `name' an optional argument, to match
  the expectations of `package-source-derivation'.

* guix/build-system/gnu.scm (gnu-build): Double-quote the default value
  of MAKE-FLAGS and CONFIGURE-FLAGS.  Don't quote them in BUILDER.

* Makefile.am (.scm.go): Define $NIXPKGS.

* Makefile.am (MODULES): Add `guix/build-system.scm' and
  `guix/build-system/gnu.scm'.  Remove `guix/gnu-build-system.scm'.

* guix/build-system.scm: New file.
* guix/gnu-build-system.scm: Rename to...
* guix/build-system/gnu.scm: ... this.
  (gnu-build-system): New variable.

* tests/builders.scm: Adjust `use-module' clauses.
  ("gnu-build-system"): New test.

* guix/utils.scm (define-record-type*): New macro.

* tests/utils.scm ("define-record-type*"): New test.

* guix/derivations.scm (build-expression->derivation)[module-form?]: New
  procedure.
  [prologue]: Add any form of EXP that matches MODULE-FORM?.
  [builder]: Remove any MODULE-FORM? from EXP.

* guix/build/gnu-build-system.scm (set-paths, build, check, install):
  New procedures.
  (unpack): Make `source' a keyword arg; add `#:allow-other-keys'.
  (configure): Likewise.
  (%standard-phases): New variable.
  (gnu-build): Make `source', `outputs', and `inputs' keyword arguments;
  add `phases' keyword argument; #:allow-other-keys; add rest arguments
  `args'.  Invoke each of PHASES in order within `every'.

* guix/gnu-build-system.scm (gnu-build): Add `make-flags' and `phases'
  keyword arguments.  Update builder's `gnu-build' call to match the new
  convention.

* guix/gnu-build-system.scm (%standard-inputs): Add Diffutils and Patch.

* guix/derivations.scm (build-expression->derivation)[builder]: Pass the
  result of EXP to `exit'.

* tests/derivations.scm ("build-expression->derivation with expression
  returning #f"): New test.

* guix/build/utils.scm (directory-exists?): Remove leftover debugging
  expressions.

* guix/store.scm (current-build-output-port): New variable.
  (process-stderr): Add docstring.  Always return #f, except upon
  %STDERR-LAST.  Upon %STDERR-NEXT, write to
  `current-build-output-port', not `current-error-port'.
  (set-build-options): Loop until `process-stderr' returns true.
  (define-operation): Likewise.
  (build-derivations): Update docstring to mention that it's
  synchronous.

* Makefile.am (.scm.go): Pass `--target=$(host)'.

* configure.ac: Use `AC_CANONICAL_HOST'.

* Makefile.am (.scm.go): Add missing `-L $(top_srcdir)'.

* Makefile.am (MODULES): Move `guix.scm' last.

* configure.ac, Makefile.am: New files.

* guix/derivations.scm (build-expression->derivation): Change to expect
  INPUTS to have the form (NAME DRV-PATH SUB-DRV) or (NAME DRV-PATH),
  instead of (NAME . DRV-PATH).  Update callers accordingly.

* guix/gnu-build-system.scm, tests/builders.scm, tests/derivations.scm:
  Update accordingly.