* README (Hacking): Rename to...
  (Requirements): ... this.  Add the daemon's dependencies.

* nix/nix-daemon/guix-daemon.cc (GUIX_OPT_BUILD_USERS_GROUP,
  GUIX_OPT_CACHE_FAILURES, GUIX_OPT_LOSE_LOGS,
  GUIX_OPT_DISABLE_STORE_OPTIMIZATION, GUIX_OPT_IMPERSONATE_LINUX_26):
  New macros.
  (options)["build-users-group", "cache-failures", "lose-logs",
  "disable-store-optimization", "impersonate-linux-2.6"]: New options.
  (parse_opt): Handle them.

* tests/derivations.scm: When %STORE if #f, skip 11 tests.

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

* daemon.am (guix_daemon_headers): New variable.
  (noinst_HEADERS): Add it.

* configure.ac: Compute and substitute `guix_localstatedir'.
* m4/guix.m4: Substitute `guix_system'.
* guix/config.scm.in (%store-directory, %store-directory, %system): New
  variables.
* guix/store.scm (%nix-state-dir): Remove.
  (%default-socket-path): Use %STATE-DIRECTORY as the default.
  (%store-prefix): Use %STORE-DIRECTORY as the default.
* guix/utils.scm (%current-system): Default to %SYSTEM.

* 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'.

* tests/utils.scm ("store-path-package-name"): Use (%store-prefix)
  instead of a hard-coded "/nix/store".

* nix/scripts/list-runtime-roots.in: New file.
* config-daemon.ac: Add `AC_CONFIG_FILES' invocation for it.
* daemon.am (nodist_pkglibexec_SCRIPTS): New variable.
  (AM_TESTS_ENVIRONMENT): Define `top_builddir'.
* tests/guix-daemon.sh: Export `NIX_ROOT_FINDER'.
* nix/sync-with-upstream: Substitute the path to the root finder in
  libstore/gc.cc.

* nix/nix-daemon/guix-daemon.cc (options)[!HAVE_CHROOT]: Mention that
  `--disable-chroot' has no effect.
  (main)[!HAVE_CHROOT]: Set `useChroot' to false.

* daemon.am (test_root, AM_TESTS_ENVIRONMENT): New variables.
  (clean-local): New target.
* tests/guix-daemon.sh: New file.

* config-daemon.ac: Add feature tests needed for the daemon code.  Taken
  from Nix's `configure.ac'.

* config-daemon.ac: Remove extraneous quotes in definition of `SYSTEM'.

* nix/libutil/md5.h (MD5_Final): Pass RESBUF as the first argument to
  `guix_hash_final'.
* nix/libutil/sha1.h (SHA1_Final): Likewise.
* nix/libutil/sha256.h (SHA256_Final): Likewise.

* guix-build.in (%store): Turn into a SRFI-39 parameter.  Update users.
  (guix-build): Set %STORE and call `open-connection' only after
  `parse-options' has been called.

* guix/store.scm (%nix-state-dir): Honor $NIX_STATE_DIR.
  (%store-prefix): Honor $NIX_STORE_DIR.

* guix/derivations.scm (derivation)[inputs]: Fix typo in call to
  `add-to-store'.
* tests/derivations.scm ("derivation with local file as input"): New test.
* tests/packages.scm ("trivial with local file as input"): New test.

* 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.

* distro/packages/linux.scm (util-linux): New variable.

* distro/packages/linux.scm (psmisc): New variable.

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

* .gitmodules, nix-upstream: New files.

* 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/packages/make-bootstrap.scm: Use (distro packages linux).  This
  is a followup to 80fe5c60.

* distro/packages/gnutls.scm (gnutls)[arguments]: New field.

* distro/packages/guile.scm (guile-2.0): Switch to 2.0.7.
  (guile-2.0/fixed): Stay at 2.0.6.

* distro/packages/guile.scm (guile-2.0/fixed): New variable.
* distro/packages/base.scm (guile-final): Use it.

* distro/packages/nano.scm, distro/packages/wget.scm: Import 'gettext'
  from (distro packages gettext) under 'guix:gettext'.

* distro/packages/base.scm (linux-libre-headers): Move to...
* distro/packages/linux.scm (linux-libre-headers): ... here.

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

* guix/download.scm (%mirrors): Add `kernel.org' mirrors.

* guix/build/download.scm (url-fetch)[uri-vicinity]: New procedure.
  [maybe-expand-mirrors]: Use it.

* distro/packages/flex.scm: Change the module name to (distro packages
  flex).

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

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

* hydra.scm (hydra-jobs): Return one job for each non-bootstrap package.

* guix/packages.scm: Export `package-home-page'.