gnu: Use `mirror://apache' where applicable.

* gnu/packages/libapr.scm (libapr, libaprutil): Use `mirror://apache'.
* gnu/packages/subversion.scm (subversion): Likewise.

download: Add Apache mirrors.

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

gnu: Add Subversion.

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

gnu: Add SQLite.

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

download: Follow HTTP redirection upon 301 "moved permanently".

* guix/build/download.scm (http-fetch): Follow redirections upon 301.
  This is what `downloads.sourceforge.net' returns, for instance.

gnu: Add libaprutil.

* gnu/packages/libapr: new variable.

gnu: Add libapr.

* gnu/packages/libapr.scm: New file.
* gnu/packages/patches/libapr-skip-getservbyname-test.patch: New file
* Makefile.am: Add them

gnu: fplll: Update to version 4.0.2.

* gnu/packages/algebra.scm (fplll): Update to version 4.0.2.

gnu: Add poppler.

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

packages: Mark the `inputs' field of <package> as thunked.

* guix/packages.scm (<package>)[inputs]: Mark as thunked.
  (package-derivation)[expand-input]: Remove case where the input is a
  procedure.
* tests/packages.scm ("trivial with system-dependent input"): Remove
  `lambda', and use (%current-system).
* gnu/packages/bootstrap.scm (package-from-tarball): Likewise for `inputs'.
  (%bootstrap-glibc, %bootstrap-gcc): Likewise.
* gnu/packages/scheme.scm (mit-scheme): Likewise.

guix-package: Error out when passed a non-option argument.

* guix-package.in (guix-package)[parse-options]: Call `leave' when
  passed a non-option argument.
  Reported by Andreas Enge <andreas@enge.fr>.
* tests/guix-package.sh: Add test.

gnu: Add t1lib.

* gnu/packages/freetype.scm (t1lib): New variable.

gnu: Add OCaml. licenses: Add QPL.

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

packages: Mark the `arguments' field of <package> as thunked.

* guix/packages.scm (<package>): Mark `arguments' as thunked.
  (package-derivation): Adjust accordingly.  Parameterize
  %CURRENT-SYSTEM to SYSTEM, so that arguments can refer to it.

* guix/build-system/gnu.scm (package-with-explicit-inputs): Expect
  `package-arguments' to always return a list, and return a list.
  (package-with-extra-configure-variable): Likewise.
  (static-package): Likewise.
* gnu/packages/base.scm (patch, findutils, gcc-4.7, binutils-boot0,
  gcc-boot0, glibc-final-with-bootstrap-bash, cross-gcc-wrapper,
  static-bash-for-glibc, binutils-final, gcc-final): Change `arguments'
  from a lambda to a list, and use (%current-system) as needed.
  (nix-system->gnu-triplet, boot-triplet): Have the first argument
  default to (%current-system).
* gnu/packages/bootstrap.scm (glibc-dynamic-linker): Have `system'
  default to (%current-system).
  (%bootstrap-gcc): Change `arguments' to a list.
* gnu/packages/gawk.scm (gawk): Likewise.
* gnu/packages/m4.scm (m4): Likewise.
* gnu/packages/make-bootstrap.scm (%glibc-for-bootstrap): Likewise, and
  expect `package-arguments' to return a list.
  (%static-inputs, %gcc-static, tarball-package): Likewise.
* gnu/packages/ncurses.scm (ncurses): Likewise.

guix-build: Fix typo.

* guix-build.in (guix-build)[find-package]: Use `x', not `_', to avoid
  confusion with `gettext'.

gnu: Remove unnecessary closures around `arguments' value.

* gnu/packages/algebra.scm (pari-gp): Remove closure around the value of
  `arguments'.
* gnu/packages/bdb.scm (bdb): Likewise.
* gnu/packages/mit-krb5.scm (mit-krb5): Likewise.
* gnu/packages/openssl.scm (openssl): Likewise.
* gnu/packages/perl.scm (perl): Likewise.

define-record-type*: Add the `thunked' field definition keyword.

* guix/utils.scm (define-record-type*)[make-syntactic-constructor]: Add
  a `thunked' parameter.
  (thunked-field?, field-bindings): New procedures.  Use the latter when
  generating `letrec*' bindings.
  [thunked-field?, thunked-field-accessor-name, field-spec->srfi-9,
  thunked-field-accessor-name]: New procedures.
  Use them when generating the `define-record-type' form, and to
  generated thunk field accessors, along call to
  `make-syntactic-constructor' with the new argument.
* tests/utils.scm ("define-record-type* & thunked",
  "define-record-type* & thunked & default",
  "define-record-type* & thunked & inherited"): New tests.

doc: Clarify that `guix-build' really is for developers.

* doc/guix.texi (Invoking guix-build): Make it clear that `guix-build'
  doesn't access the user's profile, and add cross-ref to `guix-package'.
  Suggested by Nikita Karetnikov <nikita@karetnikov.org>.

gnu: Add fontconfig.

* gnu/packages/freetype.scm (fontconfig): New variable.

gnu: libjpeg: Correct name of libjpeg-8 package to allow installation.

* gnu/packages/libjpeg (libjpeg-8): Switch name field to "libjpeg".