distro: Add Libusb.

* distro/packages/libusb.scm: New file.
* Makefile.am (MODULES): Add it.

distro: Add Check.

* distro/packages/check.scm: New file.
* Makefile.am (MODULES): Add it.

Merge branch 'nix-integration'

Conflicts:
	tests/guix-package.sh

Merge branch 'master' into nix-integration

Conflicts:
	guix/store.scm

store: Add GC-related operations.

* guix/store.scm (gc-action): New enumerate type.
  (read-long-long, read-string-list, write-store-path,
  write-store-path-list, read-store-path-list): New procedures.
  (write-arg): Add support for `store-path' and `store-path-list'.
  (read-arg): Add support for `store-path-list'.
  (define-operation): Add support for multiple-value returns.
  (run-gc, live-paths, dead-paths, collect-garbage, delete-paths): New
  procedures.
  (%long-long-max): New macro.
* tests/store.scm: New file.
* Makefile.am (TESTS): Add it.

Add (guix licenses).

* guix/licenses.scm: New file.
* Makefile.am (MODULES): Add it.

distro: Add ACL.

* distro/packages/acl.scm: New file.  Dependency on Perl added by
  Ludovic.
* Makefile.am (MODULES): Add it.

distro: Add Attr.

* distro/packages/attr.scm: New file.  Dependency on Perl and
  `patch-shebang' added by Ludovic.
* Makefile.am (MODULES): Add it.

build: Run `distcheck' with `--enable-daemon'.

* Makefile.am (AM_DISTCHECK_CONFIGURE_FLAGS): Add `--enable-daemon'.

build: Run all the tests against the just-built daemon.

* test-env.in: New file.
* configure.ac: Add it to `AC_CONFIG_FILES' and `commands-exec'.
* config-daemon.ac: Set and substitute `GUIX_TEST_ROOT'.
* Makefile.am (SCM_LOG_COMPILER, SH_LOG_COMPILER): Use it in lieu of
  `pre-inst-env'.
* daemon.am (test_root): Remove
  (AM_TESTS_ENVIRONMENT): Remove `TEST_ROOT'.
  (clean-local): Use $(GUIX_TEST_ROOT); make files writable before
  removing them.guix_test_root
* tests/guix-daemon.sh: Remove `NIX_' variable settings; don't launch
  `guix-daemon'.

Add (guix gnu-maintenance).

* guix/gnu-maintenance.scm: New file.
* Makefile.am (MODULES): Add it.

Merge branch 'master' into nix-integration

distro: Add GNU lsh.

* distro/packages/lsh.scm,
  distro/packages/patches/lsh-guile-compat.patch:
  distro/packages/patches/lsh-no-root-login.patch:
  distro/packages/patches/lsh-pam-service-name.patch: New files.
* Makefile.am (MODULES): Add lsh.scm.
  (dist_patch_DATA): Add the above patches.

build: Add `bootstrap' and `sync-with-upstream' scripts.

* bootstrap, nix/sync-with-upstream: New files.
* Makefile.am (EXTRA_DIST): Add `bootstrap'.
* daemon.am (EXTRA_DIST): Add `nix/sync-with-upstream'.

build: Include a copy of Nix's libstore and daemon; build it.

* configure.ac: Call `AC_USE_SYSTEM_EXTENSIONS', and
  `GUIX_SYSTEM_TYPE'.  Add `--with-store-dir' option, and substitute
  `storedir'.  Include `config-daemon.ac'.
* config-daemon.ac: New file.
* Makefile.am [BUILD_DAEMON]: Include `daemon.am'.
* daemon.am: New file.
* m4/guix.m4 (GUIX_SYSTEM_TYPE): New macro.

* nix/libutil/gcrypt-hash.cc, nix/libutil/gcrypt-hash.hh,
  nix/libutil/md5.h, nix/libutil/sha1.h, nix/libutil/sha256.h,
  nix/nix-daemon/guix-daemon.cc, nix/nix-daemon/shared.hh: New files.

distro: Add Linux-PAM.

* distro/packages/linux.scm: New file.
* Makefile.am (MODULES): Add it.

distro: Add GNU Cpio.

* distro/packages/cpio.scm,
  distro/packages/patches/cpio-gets-undeclared.patch: New files.
* Makefile.am (MODULES): Add 'cpio.scm'.
  (dist_patch_DATA): Add 'cpio-gets-undeclared.patch'.

distro: Add GNU Time.

* distro/packages/time.scm: New file.
* Makefile.am (MODULES): Add it.

distro: Add GNU Which.

* distro/packages/which.scm: New file.
* Makefile.am (MODULES): Add it.

distro: Search bootstrap binaries and patches in %LOAD-PATH.

* Makefile.am (patchdir, bootstrapdir): Change to be sub-directories of
  $(guilemoduledir).
  (.scm.go): Remove `DISTRO_' environment variables.
* distro.scm (not-colon): Remove.
  (%patch-path, %bootstrap-binaries-path): Default to sub-directories of
  the entries in %LOAD-PATH.
* pre-inst-env.in: Remove definition of `DISTRO_' environment variables.