* distro/packages/acl.scm, distro/packages/attr.scm,
  distro/packages/autotools.scm, distro/packages/base.scm,
  distro/packages/bash.scm, distro/packages/bdw-gc.scm,
  distro/packages/bison.scm, distro/packages/bootstrap.scm,
  distro/packages/compression.scm, distro/packages/cpio.scm,
  distro/packages/ddrescue.scm, distro/packages/ed.scm,
  distro/packages/flex.scm, distro/packages/gawk.scm,
  distro/packages/gdbm.scm, distro/packages/gettext.scm,
  distro/packages/gnupg.scm, distro/packages/gnutls.scm,
  distro/packages/gperf.scm, distro/packages/guile.scm,
  distro/packages/help2man.scm, distro/packages/less.scm,
  distro/packages/libffi.scm, distro/packages/libsigsegv.scm,
  distro/packages/libunistring.scm, distro/packages/linux.scm,
  distro/packages/lout.scm, distro/packages/lsh.scm,
  distro/packages/m4.scm, distro/packages/multiprecision.scm,
  distro/packages/nano.scm, distro/packages/ncurses.scm,
  distro/packages/nettle.scm, distro/packages/perl.scm,
  distro/packages/pkg-config.scm, distro/packages/pth.scm,
  distro/packages/readline.scm, distro/packages/recutils.scm,
  distro/packages/shishi.scm, distro/packages/system.scm,
  distro/packages/texinfo.scm, distro/packages/time.scm,
  distro/packages/wget.scm, distro/packages/which.scm,
  distro/packages/zile.scm: Use (guix licenses).

* nix/sync-with-upstream: Avoid brace expansion, for the sake of Dash.

* daemon.am (libexec_PROGRAMS, nix_setuid_helper_SOURCES,
  nix_setuid_helper_CPPFLAGS, nix_setuid_helper_LDADD): New variables.
* test-env.in: Set and export `NIX_SETUID_HELPER'.
* README (Installing Guix as non-root): New section.

* guix/build/download.scm: Annihilate `shutdown' in (web client).

* release.nix (tarball, build): Use /nix/var as localstatedir, as a
  follow-up to 7f4f0651.

* guix/config.scm.in (%state-directory): Append `/nix'.
  Reported by Andreas Enge <andreas@enge.fr>.

* bootstrap: Always run "git submodule init".  Run
  `nix/sync-with-upstream'.
  Reported by Nikita Karetnikov and Andreas Enge.

* guix-package.in (%current-profile): Change to `guix-profile'.

* release.nix (tarball): Replace "gnulib" by "nix".

* guix-package.in (%profile-directory): Use %STATE-DIRECTORY instead of
  a hard-coded directory.

* distro/packages/lout.scm (lout): Temporarily comment out dependency on
  Ghostscript as this was causing evaluation errors on Hydra.

Conflicts:
	tests/guix-package.sh

* release.nix (build_disable_daemon): New job.

* release.nix (build): Remove `__noChroot' and `preConfigure'.

* tests/builders.scm (network-reachable?): New variable.
  ("url-fetch", "gnu-build"): Skip unless NETWORK-REACHABLE?.
* tests/derivations.scm (%coreutils): Check for network access.
  ("build-expression->derivation with one input"): Skip when %COREUTILS
  is #f.
* tests/guix-package.sh: Skip installation of GNU Make when the network
  is unreachable.
* tests/packages.scm ("GNU Make, bootstrap"): Likewise.
* tests/union.scm ("union-build"): Likewise.

* release.nix (tarball): Add `preAutoconf'.  Augment `buildInputs' and
  `configureFlags' to allow daemon builds.
  (build): Likewise.

* configure.ac: Have $guix_build_daemon default to "yes".

* config-daemon.ac: Move AC_ARG_ENABLE([daemon]...)...
* configure.ac: ... here.
  When Nix programs are not found, error out only when
  $guix_build_daemon is no.

* test-env.in (NIX_STATE_DIR): Choose a slightly smaller directory name.

* tests/base32.scm (%nix-hash): When `getenv' returns the empty string,
  ignore it.
  (%have-nix-hash?): New variable.  Update `test-skip' clause to use it.

* daemon.am (-DOPENSSL_PATH): Default to "openssl".
* TODO: Mention removal of OpenSSL dependency.

* guix-package.in (%options): Add `--verbose'.
  (show-help): Update accordingly.
  (guix-package): Parameterize `current-build-output-port' according to
  VERBOSE?.  By default, silence the environment build's output.

* doc/guix.texi: Fix typos.  Reported by Andreas Enge <andreas@enge.fr>.

* guix/licenses.scm (bsd-style, expat, gpl1, gpl1+)
  (lgpl2.0, lgpl2.0+): New variables.

* tests/guix-package.sh: Use a trap on EXIT to remove profile-related
  files.  Reported by Andreas Enge <andreas@enge.fr>.

* guix-package.in (guix-package)[process-actions]: Compute PACKAGES such
  that packages listed in INSTALL* are first removed from the remainder
  of the list.  When PROF is equal to the previous profile's store path,
  do nothing.  Reported by Andreas Enge <andreas@enge.fr>.
* tests/guix-package.sh: Test the behavior of installing the same store
  path twice.  When removing a package, omit its version number.

* guix/utils.scm (%nixpkgs-directory): Set to #f when the `NIXPKGS'
  environment variable is set but empty.  Reported by
  Andreas Enge <andreas@enge.fr>.

* distro/packages/lout.scm (lout): Don't fork with `nixpkgs-derivation',
  to avoid any issues in the absence of `nix-instantiate'.

* guix/derivations.scm (derivation)[direct-store-path?]: New procedure.
  Use it to determine which inputs must be added to the store.

Conflicts:
	guix/store.scm

* 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.

* guix/store.scm (add-temp-root): New procedure.

* doc/guix.texi (Invoking guix-package): Fix short form of `--install'.
  Reported by Andreas Enge <andreas@enge.fr>.

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

* guix/download.scm (%mirrors)[savannah]: Use
  "http://download.savannah.gnu.org/releases/" as the primary URL.