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2014-10-05build-system: Bags record their system and target.Ludovic Courtès
* guix/build-system.scm (<bag>)[system, target]: New fields. (make-bag): Add #:system parameter and pass it to LOWER. * gnu/packages/bootstrap.scm (make-raw-bag): Initialize 'system' field. * guix/build-system/cmake.scm (lower): Likewise. * guix/build-system/perl.scm (lower): Likewise. * guix/build-system/python.scm (lower): Likewise. * guix/build-system/ruby.scm (lower): Likewise. * guix/build-system/trivial.scm (lower): Likewise. * guix/build-system/gnu.scm (lower): Initialize 'system' and 'target' fields. * guix/packages.scm (bag->derivation, bag->cross-derivation): New procedures. (package-derivation, package-cross-derivation): Use 'bag->derivation'. * tests/packages.scm ("search paths"): Initialize 'system' and 'target' fields. ("package->bag", "package->bag, cross-compilation", "bag->derivation", "bag->derivation, cross-compilation"): New tests.
2014-10-05build-system: Introduce "bags" as an intermediate representation.Ludovic Courtès
* guix/build-system.scm (<build-system>)[build, cross-build]: Remove. [lower]: New field. (<bag>): New record type. (make-bag): New procedure. * guix/packages.scm (bag-transitive-inputs, bag-transitive-build-inputs, bag-transitive-host-inputs, bag-transitive-target-inputs, package->bag): New procedures. (package-derivation): Use it; use the bag, apply its build procedure, etc. (package-cross-derivation): Likewise. * gnu/packages/bootstrap.scm (raw-build, make-raw-bag): New procedure. (%bootstrap-guile): Use them. * guix/build-system/trivial.scm (lower): New procedure. (trivial-build, trivial-cross-build): Remove 'source' parameter. Pass INPUTS as is. (trivial-build-system): Adjust accordingly. * guix/build-system/gnu.scm (%store, inputs-search-paths, standard-search-paths, expand-inputs, standard-inputs): Remove. (gnu-lower): New procedure. (gnu-build): Remove 'source' and #:implicit-inputs? parameters. Remove 'implicit-inputs' and 'implicit-search-paths' variables. Get the source from INPUT-DRVS. (gnu-cross-build): Likewise. (standard-cross-packages): Remove call to 'standard-packages'. (standard-cross-inputs, standard-cross-search-paths): Remove. (gnu-build-system): Remove 'build' and 'cross-build'; add 'lower'. * guix/build-system/cmake.scm (lower): New procedure. (cmake-build): Remove 'source' and #:cmake parameters. Use INPUTS and SEARCH-PATHS as is. Get the source from INPUTS. * guix/build-system/perl.scm: Likewise. * guix/build-system/python.scm: Likewise. * guix/build-system/ruby.scm: Likewise. * gnu/packages/cross-base.scm (cross-gcc): Change "cross-linux-headers" to "linux-headers". (cross-libc)[xlinux-headers]: Pass #:implicit-cross-inputs? #f. Likewise. In 'propagated-inputs', change "cross-linux-headers" to "linux-headers". * guix/git-download.scm (git-fetch): Use 'standard-packages' instead of 'standard-inputs'. * tests/builders.scm ("gnu-build-system"): Remove use of 'build-system-builder'. ("gnu-build"): Remove 'source' and #:implicit-inputs? arguments to 'gnu-build'. * tests/packages.scm ("search paths"): Adjust to new build system API. ("package-cross-derivation, no cross builder"): Likewise. * doc/guix.texi (Build Systems): Add paragraph on bags.
2014-08-28gnu: Split (gnu packages base), adding (gnu packages commencement).Ludovic Courtès
* gnu/packages/base.scm (gnu-make-boot0, diffutils-boot0, findutils-boot0, %boot0-inputs, nix-system->gnu-triplet, boot-triplet, binutils-boot0, gcc-boot0, perl-boot0, linux-libre-headers-boot0, texinfo-boot0, %boot1-inputs, glibc-final-with-bootstrap-bash, cross-gcc-wrapper, static-bash-for-glibc, glibc-final, gcc-boot0-wrapped, %boot2-inputs, binutils-final, libstdc++, gcc-final, ld-wrapper-boot3, %boot3-inputs, bash-final, %boot4-inputs, guile-final, gnu-make-final, ld-wrapper, coreutils-final, grep-final, %boot5-inputs, %final-inputs, canonical-package, gcc-toolchain, gcc-toolchain-4.8, gcc-toolchain-4.9): Move to... * gnu/packages/commencement.scm: ... here. New file. * gnu-system.am (GNU_SYSTEM_MODULES): Add it. * build-aux/check-final-inputs-self-contained.scm: Adjust accordingly. * gnu/packages/cross-base.scm: Likewise. * gnu/packages/make-bootstrap.scm: Likewise. * guix/build-system/cmake.scm (cmake-build): Likewise. * guix/build-system/gnu.scm (standard-packages, gnu-build, gnu-cross-build): Likewise. * guix/build-system/perl.scm (perl-build): Likewise. * guix/build-system/python.scm (python-build): Likewise. * guix/build-system/trivial.scm (guile-for-build): Likewise. * guix/download.scm (url-fetch): Likewise. * guix/gexp.scm (default-guile): Likewise. * guix/git-download.scm (git-fetch): Likewise. * guix/monads.scm (run-with-store): Likewise. * guix/packages.scm (default-guile): Likewise. * guix/scripts/package.scm (guix-package): Likewise. * guix/scripts/refresh.scm: Likewise. * guix/svn-download.scm (svn-fetch): Likewise. * tests/builders.scm (%bootstrap-inputs, %bootstrap-search-paths): Likewise. * tests/packages.scm ("GNU Make, bootstrap"): Likewise. * tests/guix-package.sh: Likewise. * gnu/services/base.scm: Use 'canonical-package' instead of xxx-final. * gnu/services/xorg.scm: Likewise. * gnu/system/vm.scm: Likewise. * guix/scripts/pull.scm (guix-pull): Likewise.
2014-08-23Factorize test suite support in (guix tests).Ludovic Courtès
* guix/tests.scm: New file. * Makefile.am (noinst_DATA): New variable. (GOBJECTS): Add guix/tests.go. * tests/builders.scm (%store): Use 'open-connection-for-tests' from (guix tests). * tests/derivations.scm: Likewise. * tests/monads.scm: Likewise. * tests/packages.scm: Likewise. * tests/profiles.scm: Likewise. * tests/union.scm: Likewise. * tests/gexp.scm: Likewise. (guile-for-build): Remove. Use (%guile-for-build) instead. * tests/nar.scm (make-random-bytevector, %seed, random-text): Remove. (populate-file): Change 'make-random-bytevector' to 'random-bytevector'. Use (guix tests). * tests/store.scm (%seed, random-text): Remove. Use (guix tests).
2013-12-11build: Skip one 'package-source-derivation' test when networking is missing.Ludovic Courtès
* tests/packages.scm ("package-source-derivation, snippet"): Skip when networking is missing.
2013-11-20Merge branch 'master' into core-updatesLudovic Courtès
Conflicts: guix/packages.scm
2013-11-18packages: 'package-field-location' returns a relative file name.Ludovic Courtès
* guix/packages.scm (package-field-location): Set %FILE-PORT-NAME-CANONICALIZATION. * tests/packages.scm ("package-field-location, relative file name"): New test.
2013-11-16tests: Adjust to bootstrap tarball updates.Ludovic Courtès
Reported by Mark H. Weaver <mhw@netris.org>. * tests/packages.scm ("package-source-derivation, snippet"): Change to "guile-2.0.9.tar.xz". * tests/union.scm ("union-build"): Check or include/c++ being a symlink.
2013-11-13packages: Suitably cope with indirect store paths as package sources.Ludovic Courtès
* guix/packages.scm (package-source-derivation): Don't let indirect store paths pass through. * tests/packages.scm ("package-source-derivation, indirect store path"): New test.
2013-11-08Merge branch 'master' into core-updatesLudovic Courtès
Conflicts: guix/packages.scm
2013-11-07packages: Add a 'snippet' field to <origin>.Ludovic Courtès
* guix/packages.scm (<origin>): Add 'snippet', 'modules', and 'imported-modules' fields. (patch-and-repack): Make 'inputs' a keyword parameter. Add 'snippet', 'modules', and 'imported-modules' parameters. Accept SOURCE as a raw file name. Insert SNIPPET in BUILDER. Pass IMPORTED-MODULES to 'build-expression->derivation'. (package-source-derivation): Pass the extra arguments to 'patch-and-repack'. * tests/packages.scm ("package-source-derivation, snippet"): New test. * doc/guix.texi (Defining Packages): Mention the 'patches' and 'snippet' fields. (Invoking guix build): Tell that --source has patches and snippets applied. (Software Freedom): Mention packages that contain non-free code.
2013-09-27build-system/trivial: Take the 'source' field into account.Ludovic Courtès
* guix/build-system/trivial.scm (trivial-build): When SOURCE is true, add it to INPUTS. (trivial-cross-build): Likewise. * tests/packages.scm ("trivial with source"): New test.
2013-09-18derivations: 'derivation' and related procedures return a single value.Ludovic Courtès
* guix/derivations.scm (derivation->output-path, derivation->output-paths): New procedures. (derivation-path->output-path): Use 'derivation->output-path'. (derivation-path->output-paths): Use 'derivation->output-paths'. (derivation): Accept 'derivation?' objects as inputs. Return a single value. (build-derivations): New procedure. (compiled-modules): Use 'derivation->output-paths'. (build-expression->derivation)[source-path]: Add case for when the input matches 'derivation?'. [prologue]: Accept 'derivation?' objects in INPUTS. [mod-dir, go-dir]: Use 'derivation->output-path'. * guix/download.scm (url-fetch): Adjust to the single-value return. * guix/packages.scm (package-output): Use 'derivation->output-path'. * guix/scripts/build.scm (guix-build): When the argument is 'derivation-path?', pass it through 'read-derivation'. Use 'derivation-file-name' to print out the .drv file names, and to register them. Use 'derivation->output-path' instead of 'derivation-path->output-path'. * guix/scripts/package.scm (roll-back): Adjust to the single-value return. (guix-package): Use 'derivation->output-path'. * guix/ui.scm (show-what-to-build): Adjust to deal with 'derivation?' objects instead of .drv file names. * gnu/system/grub.scm (grub-configuration-file): Use 'derivation->output-path' instead of 'derivation-path->output-path'. * gnu/system/vm.scm (qemu-image, system-qemu-image): Likewise. * tests/builders.scm, tests/derivations.scm, tests/packages.scm, tests/store.scm, tests/union.scm: Adjust to the new calling convention. * doc/guix.texi (Defining Packages, The Store, Derivations): Adjust accordingly.
2013-08-24packages: Allow file names as package sources.Ludovic Courtès
* guix/packages.scm (package-source-derivation): Add cases for SOURCE as a store path or user file. * tests/packages.scm ("package-source-derivation, file", "package-source-derivation, store path"): New tests.
2013-07-08tests: Adjust `package-field-location' test for Guile <= 2.0.6.Ludovic Courtès
* tests/packages.scm ("package-field-location"): Check the result of `read-at' against both VALUE and (FIELD VALUE). Reported by Matthew Lien - 練喆明" <bluet@bluet.org>.
2013-05-27packages: Raise an error condition a cross builder is needed but unavailable.Ludovic Courtès
* guix/packages.scm (&package-cross-build-system-error): New condition type. (package-cross-derivation): Raise &package-cross-build-system-error when the build system doesn't support cross builds. * guix/ui.scm (call-with-error-handling): Add package-cross-build-system-error? case. * tests/packages.scm ("package-cross-derivation, no cross builder"): New test.
2013-05-24build-system/trivial: Implement the cross-build protocol.Ludovic Courtès
* guix/build-system/trivial.scm (guile-for-build): New procedure. (trivial-build): Use it. (trivial-cross-build): New procedure. (trivial-build-system): Use it.
2013-05-24packages: Implement `package-cross-derivation'.Ludovic Courtès
* guix/packages.scm (package-transitive-target-inputs, package-transitive-native-inputs): New procedures. (package-derivation): Parametrize `%current-target-system'. (package-cross-derivation): Implement. * guix/utils.scm (%current-target-system): New variable. * tests/packages.scm ("package-cross-derivation"): New test. * doc/guix.texi (Defining Packages): Document `package-cross-derivation'.
2013-04-26Merge branch 'master' into core-updatesLudovic Courtès
Conflicts: Makefile.am gnu/packages/autotools.scm gnu/packages/guile.scm gnu/packages/python.scm gnu/packages/shishi.scm guix/gnu-maintenance.scm guix/scripts/build.scm guix/scripts/gc.scm guix/scripts/package.scm guix/scripts/substitute-binary.scm guix/ui.scm nix/nix-daemon/guix-daemon.cc test-env.in tests/nar.scm tests/store.scm
2013-04-25packages: Use `read' and source properties for `package-field-location'.Ludovic Courtès
* guix/packages.scm (package-field-location): Rewrite using `read' and source properties. Change to return #f upon failure. * tests/packages.scm ("package-field-location"): Check for #f upon failure. * build-aux/sync-synopses.scm: Adjust accordingly.
2013-04-22packages: Add `package-field-location'.Ludovic Courtès
* guix/packages.scm (package-field-location): New procedure. * build-aux/sync-synopses.scm: Use it instead of `package-location'. * tests/packages.scm ("package-field-location"): New test.
2013-03-30packages: Add `native-search-paths' field and honor it.Ludovic Courtès
* guix/packages.scm (<search-path-specification>): New record type. (search-path-specification->sexp): New procedure. (<package>)[native-search-paths]: New field. (package-derivation): Accumulate the search paths, and pass them as #:search-paths toe BUILDER. * guix/build-system/gnu.scm (gnu-build): Add #:search-paths. Compute `implicit-search-paths'. Pass #:search-paths in BUILDER. * guix/build-system/perl.scm (perl-build): Add #:search-paths, pass it to BUILDER with the search paths of PERL. * guix/build-system/cmake.scm (cmake-build): Add #:search-paths, pass it to BUILDER. * guix/build-system/trivial.scm (trivial-build): Add #:search-paths, ignore it. * guix/build/gnu-build-system.scm (set-paths): Add #:search-paths. Remove explicit settings of CPATH, LIBRARY_PATH, and PKG_CONFIG_PATH. Instead, walk SEARCH-PATHS and call `set-path-environment-variable' for them. * guix/build/perl-build-system.scm (perl-build): Remove PERL5LIB setting. * tests/packages.scm ("search paths"): New test. * gnu/packages/bootstrap.scm (%bootstrap-guile)[raw]: Add #:search-paths. (%bootstrap-gcc): Add `native-search-paths' field. * gnu/packages/perl.scm (perl): Likewise. * gnu/packages/pkg-config.scm (pkg-config): Likewise. * gnu/packages/glib.scm (intltool): Remove `arguments'. * gnu/packages/avahi.scm (avahi): Remove #:phases.
2013-03-07packages: Remove the default value for `license'.Ludovic Courtès
* guix/packages.scm (<package>): Remove the default value for `license'. * gnu/packages/bootstrap.scm (package-from-tarball, %bootstrap-glibc, %bootstrap-gcc): Initialize `license'. * tests/packages.scm (dummy-package): Likewise.
2013-02-16packages: Add `package-output'.Ludovic Courtès
* guix/packages.scm (package-output): New procedure. * tests/packages.scm ("package-output"): New test.
2013-02-01Augment `.dir-locals.el'.Ludovic Courtès
* .dir-locals.el: Add more Scheme settings. * guix-build.in, tests/base32.scm, tests/build-utils.scm, tests/builders.scm, tests/derivations.scm, tests/packages.scm, tests/snix.scm, tests/store.scm, tests/union.scm, tests/utils.scm: Remove redundant Emacs local variable settings.
2013-01-24packages: Mark the `inputs' field of <package> as thunked.Ludovic Courtès
* 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.
2013-01-20packages: Have `package-derivation' return a <derivation> as a second value.Ludovic Courtès
* guix/packages.scm (cache): Change the `drv' argument to `thunk'. Memoize all the return values of THUNK. (cached-derivation): Remove. (cached): New macro. (package-derivation): Use `cached' instead of `(or (cached-derivation) …)'. * doc/guix.texi (Defining Packages): Update accordingly.
2013-01-18distro: Rename (distro) to (gnu packages).Ludovic Courtès
* distro.scm: Rename to... * gnu/packages.scm: ... this. Update all users accordingly. * Makefile.am (MODULES): Adjust accordingly. * po/POTFILES.in: Likewise.
2013-01-18distro: Change the module name space to (gnu ...).Ludovic Courtès
* distro: Rename to... * gnu: ... this. Update module names accordingly. * Makefile.am: Adjust accordingly. * po/POTFILES.in: Likewise. * distro.scm: Search for files under /gnu/packages instead of /distro/packages. * gnu/packages/base.scm (ld-wrapper-boot3): Likewise.
2013-01-06Update license headers.Ludovic Courtès
Change all license headers, except guix/build/* and ld-wrapper.scm, with this code: (use-modules (guix build utils) (srfi srfi-1)) (fluid-set! %default-port-encoding "UTF-8") (substitute* (remove (lambda (f) (or (string-contains f ".tar.") (string-contains f ".git/") (string-contains f ".so") (string-suffix? ".o" f) (string-suffix? ".a" f) (string-suffix? ".go" f) (string-suffix? ".pdf" f) (string-suffix? ".png" f) (string-suffix? ".info" f) (equal? (basename f) "guix-daemon") (equal? (basename f) "nix-setuid-helper") (string-contains f "nix-upstream/") (string-contains f "distro/packages/bootstrap/"))) (find-files "." "\\.[a-z]+$")) (("^([[:graph:]]+) This file is part of Guix." _ comment-start) (string-append comment-start " This file is part of GNU Guix.")) (("^([[:graph:]]+) Guix --- Nix package management.*" _ comment-start) (string-append comment-start " GNU Guix --- Functional package management for GNU\n")) (("^([[:graph:]]+) Guix is " _ comment-start) (string-append comment-start " GNU Guix is ")) (("^([[:graph:]]+) along with Guix." _ comment-start) (string-append comment-start " along with GNU Guix.")) (("^([[:graph:]]+) Copyright \\(C\\)" _ comment-start) (string-append comment-start " Copyright ©"))) Change headers using C-style comments manually.
2012-12-13tests: Skip network-dependent tests when the network is unreachable.Ludovic Courtès
* 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.
2012-12-04derivations: Fix erroneous call to `add-to-store' for local files as input.Ludovic Courtès
* 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.
2012-11-19distro: Add `fold-packages'.Ludovic Courtès
* distro.scm (fold-packages): New procedure. (find-packages-by-name): Use it instead of hand-written traversal; remove `package?' checks from `right-package?'. * tests/packages.scm ("fold-packages"): New test.
2012-11-09tests: Choose a less expensive test for packages.Ludovic Courtès
* tests/packages.scm (%bootstrap-inputs): Remove. ("GNU Hello"): Rename to... ("GNU Make, bootstrap"): ... this. Build GNU-MAKE-BOOT0 instead of HELLO.
2012-11-04distro: Move bootstrap packages to (distro packages bootstrap).Ludovic Courtès
* distro/packages/base.scm (glibc-dynamic-linker, %bootstrap-guile, bootstrap-origin, package-from-tarball, %bootstrap-base-url, %bootstrap-coreutils&co, %bootstrap-binutils, %bootstrap-glibc, %bootstrap-gcc, %bootstrap-inputs, package-with-bootstrap-guile): Move to ... * distro/packages/bootstrap.scm: ... here. New file. * Makefile.am (MODULES): Add it. * tests/builders.scm: Use (distro packages bootstrap). (%bootstrap-guile): Remove. * tests/packages.scm: Likewise. * tests/union.scm: Likewise, and remove @@ to access %bootstrap-inputs. * tests/derivations.scm: Use (distro packages bootstrap) and remove @@ to access %bootstrap-coreutils&co. * HACKING (When the platform is supported by Nixpkgs): Update accordingly.
2012-11-04packages: `description' → `synopsis', `long-description' → `description'.Ludovic Courtès
* guix/packages.scm (<package>): Rename `description' to `synopsis', and `long-description' to `description'. * tests/packages.scm, distro/packages/base.scm, distro/packages/databases.scm, distro/packages/guile.scm, distro/packages/typesetting.scm: Update accordingly. * po/Makevars (XGETTEXT_OPTIONS): Update `--keyword' flags accordingly.
2012-11-02tests: Run without substitutes.Ludovic Courtès
* tests/builders.scm, tests/derivations.scm, tests/packages.scm: Set #:use-substitutes? #f for %STORE.
2012-10-28tests: Use our own bootstrap tools.Ludovic Courtès
* tests/builders.scm (%bootstrap-inputs): Use %BOOT0-INPUTS from the distro. * tests/packages.scm (%bootstrap-inputs): Likewise. * tests/derivations.scm (%coreutils): Alias for %BOOTSTRAP-COREUTILS&CO.
2012-10-21packages: Add support for system-dependent inputs.Ludovic Courtès
* guix/packages.scm (package-derivation)[intern]: New procedure. Pass #t as the `recursive?' argument, instead of #f. [expand-input]: New procedure, with code formerly in the body. Support inputs where the input is a procedure returning a file name or an <origin>. Use `expand-input' in the body. * tests/packages.scm ("trivial with system-dependent input"): New test.
2012-10-07tests: Use bootstrap and Nixpkgs inputs to be less costly.Ludovic Courtès
* tests/builders.scm (%bootstrap-inputs, %bootstrap-guile): New variables. ("gnu-build"): Use them, by setting `#:implicit-inputs? #f' and `#:guile'. * tests/packages.scm (%bootstrap-inputs, %bootstrap-guile): New variables. ("trivial"): Pass `#:guile %bootstrap-guile'. ("GNU Hello"): Use `package-with-explicit-inputs' to use %BOOTSTRAP-GUILE and %BOOTSTRAP-INPUTS.
2012-09-26distro: Rename (distro ...) to (distro packages ...).Ludovic Courtès
* distro/base.scm, distro/ld-wrapper.scm: Move to `distro/packages'. Adjust LD-WRAPPER-BOOT3 input file name accordingly. * Makefile.am (MODULES): Adjust accordingly. * distro.scm (%distro-module-directory): Change to "/distro/packages". * guix/build-system/gnu.scm (standard-inputs): Change module name to (distro packages base). * tests/packages.scm (test-packages): Likewise.
2012-09-10Add (guix build-system trivial).Ludovic Courtès
* guix/build-system/trivial.scm: New file. * Makefile.am (MODULES): Add it. * tests/packages.scm ("trivial"): New test. * guix/packages.scm (package-derivation): Allow SOURCE to be #f.
2012-07-07Add `package-transitive-inputs'; use it to honor propagated inputs.Ludovic Courtès
* guix/packages.scm (package-transitive-inputs): New procedure. (package-derivation): Use it to compute INPUTS. * tests/packages.scm (dummy-package): New macro. ("package-transitive-inputs"): New test.
2012-06-30Add (distro) with a package searching facility.Ludovic Courtès
* 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.
2012-06-28Track the source location of packages.Ludovic Courtès
* 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'.
2012-06-28Add a declarative packaging layer.Ludovic Courtès
* 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'.