Fixes <http://bugs.gnu.org/26987>.
Reported by Mathieu Othacehe <m.othacehe@gmail.com>.
* guix/build/pull.scm (depends-on-guile-ssh?): Remove.
(has-all-its-dependencies?): New procedure.
(build-guix): Use it to filter source files.
* guix/modules.scm (&missing-dependency-error): New error condition.
(source-module-dependencies): Raise it when 'search-path' returns #f.
* tests/modules.scm ("&missing-dependency-error"): New test.
Before this patch, there was a possibility that we'd queue several
baking tasks for the same item. The first one would bake the item but
subsequent tasks wouldn't check whether the item had been baked in the
meantime and would re-bake it.
* guix/scripts/publish.scm (render-narinfo/cached): Don't call
'bake-narinfo+nar' when (file-exists? cached).
Fixes <http://bugs.gnu.org/27017>.
Reported by Alex Vong <alexvong1995@gmail.com>.
* guix/scripts/package.scm (process-query) <'list-generations>: Wrap
body in 'leave-on-EPIPE'.
This prevents a ".el.el" extension for source files with no version number in
their file name.
* guix/build/emacs-build-system.scm (store-file->elisp-source-file): Remove
".el" extension from file name before splitting to name and version.
Fixes <http://bugs.gnu.org/27005>.
Reported by Pjotr Prins <pjotr.public12@thebird.nl>.
Fixes a regression introduced in commit
2252f087d4.
* guix/scripts/pack.scm (docker-image)[json]: New variable.
[build]: Use it.
Fixes <http://bugs.gnu.org/27005>.
Reported by Pjotr Prins <pjotr.public12@thebird.nl>.
Fixes a regression introduced in commit
2252f087d4.
* guix/scripts/pack.scm (docker-image)[json]: New variable.
[build]: Use it.
Fixes <http://bugs.gnu.org/26975>.
Reported by Mark H Weaver <mhw@netris.org>.
* guix/scripts/publish.scm (bake-narinfo+nar): Pass #f as the 2nd
argument to 'stat' and properly handle #f.
* tests/publish.scm (wait-for-file): New procedure.
("with cache"): Remove 'wait-for-file' procedure.
("with cache, uncompressed"): New test.
Fixes <http://bugs.gnu.org/26949>.
Reported by Pjotr Prins <pjotr.public12@thebird.nl>.
* guix/build/union.scm (file-is-directory?): Return #f when FILE does
not exist or is a dangling symlink.
(file=?): Pass #f as a second argument to 'stat'; return #f when both
ST1 or ST2 is #f.
* tests/profiles.scm (test-equalm): New macro.
("union vs. dangling symlink"): New test.
Fixes <http://bugs.gnu.org/26975>.
Reported by Mark H Weaver <mhw@netris.org>.
* guix/scripts/publish.scm (bake-narinfo+nar): Pass #f as the 2nd
argument to 'stat' and properly handle #f.
* tests/publish.scm (wait-for-file): New procedure.
("with cache"): Remove 'wait-for-file' procedure.
("with cache, uncompressed"): New test.
Fixes <http://bugs.gnu.org/26949>.
Reported by Pjotr Prins <pjotr.public12@thebird.nl>.
* guix/build/union.scm (file-is-directory?): Return #f when FILE does
not exist or is a dangling symlink.
(file=?): Pass #f as a second argument to 'stat'; return #f when both
ST1 or ST2 is #f.
* tests/profiles.scm (test-equalm): New macro.
("union vs. dangling symlink"): New test.
* guix/import/cran.scm (%bioconductor-svn-url): Remove variable.
(bioconductor-mirror-url): New procedure.
(fetch-description): Take a REPOSITORY symbol instead of a BASE-URL string.
(cran->guix-package): Pass REPOSITORY symbol to "fetch-description".
(latest-cran-release, latest-bioconductor-release): Adjust accordingly.
(bioconductor-package?): Update comment about SVN.
* guix/build-system/asdf.scm (asdf-build): Add a #:test-asd-file argument.
[builder]: Pass it to the build system.
(package-with-build-system)[transform]: Strip it from source systems' arguments.
* guix/build/asdf-build-system.scm (check): Pass the fully qualified path to
it on to the test-system procedure.
* guix/build/lisp-utils.scm (test-system): Load the file, or otherwise one of
the often used names for it, before running the tests. Adjust the docstring
accordingly.
In support of long-running programs in which the users would like to be able
to jump to the source of a definition of any of the dependencies (itself
included) of the program.
* guix/build/asdf-build-system.scm (library-outputs): Move from here ...
* guix/build/lisp-utils.scm (library-outputs): ... to here.
(build-program): Accept dependency-prefixes argument, to allow the caller to
specify references which should be retained. Default to the library's output.
(build-image): Likewise.
(generate-executable): Likewise.
* gnu/packages/lisp.scm (sbcl-stumpwm+slynk, sbcl-slynk, sbcl-stumpwm): Adjust
accordingly to the new interface.
(sbcl-stumpwm+slynk)[native-inputs]: Move to ...
[inputs]: ... here.
Accept a list of statements, each run within its own `--eval' argument. This
allows statements to use reader package namespacing after a package has been
loaded.
* guix/build/lisp-utils.scm (spread-statements): New procedure.
(lisp-invoke): Rename to ...
(lisp-invocation): ... this. Use spread-statements. Change interface to accept
list of statements instead of a single statement.
(asdf-load-all-systems): Simplify returned statements.
(compile-system): Simplify the program passed to `lisp-eval-program'.
(test-system): Likewise.
(generate-executable-for-system): Likewise. Accept the full symbol describing
the asdf operation to use.
(generate-executable): Document the change.
(build-program, build-image): Use the new interface.
* guix/build/lisp-utils.scm (valid-char-set): New variable.
(normalize-string): New procedure.
(compiled-system): Truncate the name of a system which contains slashes.
(generate-system-definition, make-asd-file): Use `normalize-string' to alter
the names of the created system and its dependencies.
* guix/build/asdf-build-system.scm (create-asd-file): Normalize the name of
the asd file being created.
* guix/build-system/asdf.scm (asdf-build)[builder]: Pass a default
`#:asd-file' argument to the build procedure, using the system's name.
* guix/build/asdf-build-system.scm (build, check): Adjust to assume that
`asd-file' will always be a string.
* guix/build/lisp-utils.scm (compile-system, system-dependencies)
(test-system): Likewise.
* guix/build-system/asdf.scm (asdf-build): Use the user-defined system name,
or calculate it from the package's full name.
[builder]: Pass the value along to the build procedure.
(package-with-build-system): Remove #:asd-system-name from source packages'
arguments.
* guix/build/asdf-build-system.scm: Adjust accordingly.
* guix/build/lisp-utils.scm (remove-lisp-from-name): Delete variable.
* guix/build-system/asdf.scm (asdf-build)[builder]: Parameterize %lisp-type
and %lisp before invoking the build procedure. Don't pass #:lisp-type as an
argument to said procedure.
* guix/build/asdf-build-system.scm: Adjust accordingly.
(source-install-prefix): Rename to %lisp-source-install-prefix.
* guix/build/lisp-utils.scm: Adjust accordingly.
(%lisp-type): New parameter.
(bundle-install-prefix): Rename to %bundle-install-prefix.
* gnu/packages/lisp.scm: Adjust accordingly.
* guix/build-system/asdf.scm (lower): Change argument name to `lisp-type'.
(asdf-build): Change argument name to `lisp-type'. Remove `lisp' as an
argument to the returned procedure. Change the argument passed to build
phases to `lisp-type'.
* guix/build/asdf-build-system.scm (copy-source, build, check)
(create-asd-file, symlink-asd-files, cleanup-files, strip): Respect
`lisp-type` argument.
* gnu/packages/lisp.scm (sbcl-stumpwm, sbcl-stumpwm+slynk): Likewise.
* guix/build-system/asdf.scm (package-with-build-system)[transform]: Use updated
`new-inputs' procedure for inputs and native-inputs.
<rewrite>: Don't rename inputs.
<new-propagated-inputs>: Draw from package-inputs and package-native-inputs
for source packages. Use the original package's propagated-inputs otherwise.
<new-inputs>: Convert into a function to be used to transform inputs and
native-inputs.
* gnu/packages/lisp.scm (sbcl-fiveam, sbcl-bordeaux-threads)
(sbcl-flexi-streams, sbcl-cl-ppcre, sbcl-stumpwm, sbcl-slynk-arglists)
(sbcl-slynk-fancy-inspector): Don't prefix input names.
This removes the need for conventions to determine which inputs are run-time
dependencies, and also the need to specify "special" dependencies.
* guix/build/lisp-utils.scm (patch-asd-file, lisp-dependencies)
(wrap-perform-method): Remove them.
(inputs->asd-file-map, system-dependencies, generate-system-definition)
(generate-dependency-links, make-asd-file): New procedures.
(lisp-eval-program): Add an error if no lisp matches.
(compile-system): Don't use asdf's in-built asd-file generator.
* guix/build/asdf-build-system.scm (library-output): New procedure.
(copy-source, build, check, patch-asd-files, symlink-asd-files)
(cleanup-files): Use it.
(copy-files-to-output): Rework to take an output instead of an outputs and
string pair.
(install, copy-source): Use the new method.
* guix/scripts/system.scm (reinstall-grub): Rename to
reinstall-bootloader. Read boot-device and boot-type from parameters file to
be able to restore the correct bootloader on specified device.
Factorize bootloader installation code by calling install-bootloader.
(system-bootloader-name): New procedure.
(switch-to-system-generation): Adapt.
* guix/scripts/system.scm (install): Pass installer a new
argument. Rename other arguments.
Call install-bootloader instead of install-grub*.
(perform-action): Adapt.
* guix/scripts/system.scm (install-grub*): Rename to install-bootloader. Use
keys to pass arguments. Pass a new argument, "installer-drv" which is a script
in store dealing with bootloader-specific install actions. Also call
"install-boot-config" to install the bootloader config file.
(install-bootloader-derivation): New procedure. It returns a derivation that
builds a file containing "install-procedure" gexp.
(perform-action): Build install-proc derivation and call install-bootloader
with the resulting file. Stop adding GRUB to PATH as bootloaders are called in
install-proc with direct store paths.
* gnu/bootloader.scm: New file.
* gnu/bootloader/extlinux.scm: New file.
* gnu/bootloader/grub.scm: New file.
* gnu/local.mk: Build new files.
* gnu/system.scm: Adapt to new bootloader api.
* gnu/scripts/system.scm: Adapt to new bootloader api.
* gnu.scm: Remove (gnu system grub) and replace by (gnu bootloader) and (gnu
bootloader grub) modules.
* gnu/system/grub.scm: Moved content to gnu/bootloader/grub.scm.
* gnu/system/vm: Replace (gnu system grub) module by (gnu bootloader).
* gnu/tests.scm: Ditto.
* gnu/tests/nfs.scm: Ditto.
Suggested by Ricardo Wurmus.
* guix/build/bournish.scm (ls-command-implementation): When FILE is a
directory, list its contents rather than FILE itself.
* guix/import/cran.scm (package->upstream-name): Return #f if url
start and end index could not be determined.
(cran-package?): Check if the upstream-name can be extracted from
given package.
* tests/cran.scm: Add "r-minimal is not a cran package" to make sure that
r-minimal is not detected as a cran package.
This fixes a failure of guix refresh on r-minimal because no
upsteam-name can be determined from ".../R-version.tar.gz" uri.
This fixes runs of 'guix package' and 'guix system' tests in
environments where $HOME is read-only.
* guix/ui.scm (config-directory): Add #:ensure? parameter and honor it.
* guix/scripts.scm (warn-about-old-distro): Pass #:ensure? #f to
'config-directory'.
* guix/scripts/substitute.scm (cached-narinfo): When VALUE is #f, use
the TTL that is read instead of %NARINFO-NEGATIVE-TTL.
(cached-narinfo-expiration-time): Likewise.
* guix/scripts/publish.scm (not-found): Add #:phrase and #:ttl
parameters and honor them.
* tests/publish.scm ("with cache"): Check the 'cache-control' header on
of the 404 response.
Fixes <http://bugs.gnu.org/25852>.
Suggested by Mark H Weaver <mhw@netris.org>.
* guix/scripts.scm (%distro-age-warning): New variable.
(warn-about-old-distro): New procedure.
* guix/scripts/package.scm (process-actions): Call
'warn-about-old-distro'.
* guix/scripts/system.scm (process-action): Likewise.
* guix/build/java-utils.scm: New file.
* guix/build-system/ant.scm: Use it.
* Makefile.am (MODULES): Add it.
Co-authored-by: Ricardo Wurmus <rekado@elephly.net>
* guix/build/pull.scm (%default-optimizations)
(%lightweight-optimizations): New variables.
(optimization-options): New procedure. Taken from
build-aux/compile-all.scm.
(build-guix): Pass it to 'compile-file'.
Previously, 'guix pull' would always build with Guile 2.0.
Now it builds with the Guile that matches (effective-version).
* build-aux/build-self.scm (false-if-wrong-guile)
(package-for-current-guile): New procedures.
(guile-json, guile-ssh): Use it.
(guile-for-build): New procedure.
(build): Use (effective-version) instead of the hard-coded "/2.0".
Add (guix modules) closure to #:modules argument. Pass
\#:guile-for-build argument to 'gexp->derivation'.
* guix/build/pull.scm (depends-on-guile-ssh?, all-scheme-files): New
procedures.
(build-guix): Show the output of (version). Use the above procedures.
Filter out files that match 'depends-on-guile-ssh?' when (ssh session)
is missing.
Reported by Niall Dooley <dooleyn@gmail.com>
in <https://lists.gnu.org/archive/html/help-guix/2017-05/msg00038.html>.
* guix/scripts/pull.scm (%options): Add --dry-run and all of
%STANDARD-BUILD-OPTIONS.
(show-help): Add call to 'show-build-options-help'.
(%default-options): Add 'system', 'substitutes?', 'graft?',
'max-silent-time', and 'verbosity'.
(guix-pull)[parse-options]: Remove.
Use 'parse-command-line' instead. Honor --dry-run.
Previously, it the predicate would return #t for "m4/ChangeLog" if
"ChangeLog" (in the top-level directory) was in FILES. This commit
fixes the ambiguity.
* guix/git-download.scm (git-predicate): Add 'inodes' variable. Use it
to determine file membership.
* gnu/system/grub.scm (boot-parameters->menu-entry): New variable.
(grub-configuration-file): Use boot-parameters
instead of menu-entry where possible.
* guix/scripts/system.scm (profile-boot-parameters): Update docstring.
(reinstall-grub): Use profile-boot-parameters.
(perform-action): Use profile-boot-parameters.
* gnu/system.scm (read-boot-parameters): Remove export.
(read-boot-parameters-file): New variable. Export it.
* guix/scripts/system.scm (profile-boot-parameters): Use
read-boot-parameters-file.
(profile-grub-entries): Use read-boot-parameters-file.
(reinstall-grub): Use read-boot-parameters-file.
(display-system-generation): Use read-boot-parameters-file.
* guix/scripts/refresh.scm (maybe-updater, list-updaters): Remove.
(importer-modules): New procedure.
(%updaters): Define using 'fold-module-public-variables'. Turn into a
promise and adjust users.
* guix/monads.scm (%templates, %template-instances): New variables.
(register-template!, register-template-instance!): New procedures.
(template-directory, define-template): New macro.
(foldm, sequence, anym): Define using 'define-template'. Avoid replace
ellipses with dots.
(mapm): Likewise, but do not use 'foldm'.
* guix/store.scm: Add 'template-directory' invocation.
This allows us to download from site such as
<https://fusionforge.int-evry.fr> where the server does not recognize
the server name passed via the 'server_name' extension.
* guix/build/download.scm (tls-wrap): Catch 'gnutls-error' around
'handshake'. Upon ERROR/WARNING-ALERT-RECEIVED, print a message and
call 'handshake'.
* guix/scripts/publish.scm (narinfo-string): Add #:file-size parameter.
Produce a "FileSize" field when COMPRESSION is eq? to '%no-compression'
or when FILE-SIZE is true.
(bake-narinfo+nar): Pass #:file-size.
* tests/publish.scm ("/*.narinfo")
("/*.narinfo with properly encoded '+' sign")
("with cache"): Check for "FileSize".
* guix/scripts/refresh.scm (list-dependents)[full-name]: New procedure.
Use 'full-name' instead of 'package-full-name'.
* doc/guix.texi (Invoking guix refresh): Adjust example accordingly.
Reported by Mark H Weaver <mhw@netris.org>
at <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00457.html>.
* guix/derivations.scm (build-expression->derivation): Use a string
output port for the expression. This reverts part of
2dce88d5bb.
* tests/derivations.scm ("build-expression->derivation and builder
encoding"): New test.
This allows 'guix' commands to talk to a remote store over SSH.
* guix/store.scm (connect-to-daemon)[connect]: Call 'resolve-interface'
for unknown URI schemes.
* guix/store/ssh.scm: New file.
* Makefile.am (MODULES): Add it.
* doc/guix.texi (The Store): Document it. Mark remote access as
experimental.
On Guile 2.2.1, this yields a 5% speedup on:
guix build libreoffice xmonad certbot -n --no-substitutes --no-build-hook
* guix/derivations.scm (derivation->string): Rename to...
(derivation->bytevector): ... this. Use 'open-bytevector-output-port'
instead of 'call-with-output-string'.
(derivation-hash): Remove string-to-bytevector conversion before
'sha256' call.
(build-expression->derivation): Use 'add-data-to-store' and an
bytevector port instead of a string port for the expression.
Suggested by Quiliro <quiliro@riseup.net>
in <https://bugs.gnu.org/26567>.
* guix/scripts/publish.scm (render-home-page): New procedure.
(make-request-handler): Handle it.
* guix/scripts/publish.scm (narinfo-files): New procedure.
(render-narinfo/cached)[delete-file]: New procedure. Add call to
'maybe-remove-expired-cache-entries'.
* doc/guix.texi (Invoking guix publish): Document the interation between
--cache and --ttl.
* guix/cache.scm, tests/cache.scm: New files.
* Makefile.am (MODULES, SCM_TESTS): Add them.
* guix/scripts/substitute.scm (obsolete?): Remove.
(remove-expired-cached-narinfos): Rename to...
(cached-narinfo-expiration-time): ... this. Remove the removal part and
only keep the expiration time part.
(narinfo-cache-directories): Add optional 'directory' parameter and
honor it.
(maybe-remove-expired-cached-narinfo): Remove.
(cached-narinfo-files): New procedure.
(guix-substitute): Use 'maybe-remove-expired-cache-entries' instead of
'maybe-remove-expired-cached-narinfo'.
Fixes <http://bugs.gnu.org/26201>.
Reported by <dian_cecht@zoho.com>.
These options allow nars to be "baked" off-line and cached instead of
being compressed on the fly. As a side-effect, this allows us to
provide a 'Content-Length' header for nars.
* guix/scripts/publish.scm (show-help, %options): Add '--cache' and
'--workers'.
(%default-options): Add 'workers'.
(nar-cache-file, narinfo-cache-file, run-single-baker): New procedures.
(single-baker): New macro.
(render-narinfo/cached, bake-narinfo+nar)
(render-nar/cached): New procedures.
(make-request-handler): Add #:cache and #:pool parameters and honor
them.
(run-publish-server): Likewise.
(guix-publish): Honor '--cache' and '--workers'.
* tests/publish.scm ("with cache"): New test.
* doc/guix.texi (Invoking guix publish): Document it.
* guix/scripts/system.scm (%options, show-help): Adjust accordingly.
Keep "--no-grub" for compatibility reasons, but do not mention it in the help.
Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>
Reported by Mathieu Othacehe <m.othacehe@gmail.com>
at <http://bugs.gnu.org/26498>.
* guix/scripts/lint.scm (warn-if-package-has-input): Rename to...
(package-input-intersection): ... this. Remove 'linted' and 'message'
parameters. Return a list of inputs.
(check-inputs-should-be-native): Adjust accordingly.
(check-inputs-should-not-be-an-input-at-all): Likewise.
This provides a ~2x speedup when using 4 threads.
* guix/packages.scm (patch-and-repack)[build]: Invoke xz with
'--threads=0' when re-packing tarballs.
* guix/scripts/system.scm (profile-boot-parameters): New variable.
(reinstall-grub): Use profile-boot-parameters.
(perform-action): Use profile-boot-parameters.
Follow-up to 2e58e05bb6.
* guix/scripts/system.scm (save-load-path-excursion,
save-environment-excursion): Move definitions to the top of the file.
It allows to use them in the whole file.
Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>
* guix/scripts/system.scm (save-load-path-excursion,
save-environment-excursion): Move definitions to the top of the file.
It allows to use them in the whole file.
Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>
* guix/build/cargo-build-system.scm (generate-checksums): Remove store
reference from comment. This comment was matching
assert-no-store-file-names regexp in Makefile.am.
Also, edit procedure docstring to precise that DIR-NAME is a store
directory.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* guix/monads.scm (mwhen, munless): Rename parameters from 'exp0' and 'exp' to
'mexp0' and 'mexp', respectively. This makes it more obvious that these
expressions must be monadic expressions.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
* guix/build/syscalls.scm (mount): Use Guile core mount if called from
static Guile, otherwise use FFI based mount implementation.
(umount): Ditto.
This allows to use (guix build syscalls) from a module independently
of calling context.
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
The mandb database file (index.db) is used by the "apropos" (whatis) or
"man -k" commands. This change introduces a profile hook to generate
such database file.
* guix/profiles.scm (manual-database): New procedure.
(%default-profile-hooks): Add it.
Co-authored-by: Ludovic Courtès <ludo@gnu.org>
* guix/build-system/python.scm (package-with-explicit-python)
[package-variant, cut?]: New procedures.
[transform]: Remove 'mlambdaq' form and input tuple handling.
Use 'package-mapping'.
* guix/packages.scm (package-mapping): New procedure.
(package-input-rewriting): Rewrite in terms of 'package-mapping'.
* tests/packages.scm ("package-mapping"): New test.
* doc/guix.texi (Defining Packages): Document it.
Fixes test failures related to xz compression in tests/utils.scm.
This is a followup to commit 63102406f2.
* guix/utils.scm (decompressed-port, compressed-port, compressed-output-port):
Split each shell argument into its own list element.
Reported by Thomas Sigurdsen <thomas.sigurdsen@gmail.com>
at <https://lists.gnu.org/archive/html/help-guix/2017-04/msg00007.html>.
* guix/packages.scm (expand-input): Add 'guard' form around call to
'package-source-derivation'.
* tests/packages.scm (dummy): New test.
* gnu/packages/bioinformatics.scm (python-pysam)[arguments] <check>:
Use (negate proc) instead of (compose not proc).
* guix/import/cran.scm (recursive-import): Likewise.
* guix/import/elpa.scm (filter-dependencies): Use 'remove' instead of
'(filter (compose not proc) ...)'.
Fixes a regression introduced in
a4f5423415.
Reported by Hartmut Goebel.
* guix/build/download.scm (ftp-fetch): Account for the case where
'uri-userinfo' returns #f. Remove the case where it returns "" since
that cannot happen.
This avoids connections to substitute servers for derivations that are
not substitutable anyway, such as profiles.
Reported by Andy Wingo.
* guix/derivations.scm (substitution-oracle): Skip derivations that do
not pass 'substitutable-derivation?'.
* tests/derivations.scm ("substitution-oracle and #:substitute? #f"):
New test.
* guix/ui.scm (package-field-string): New procedure.
(package-description-string): Use it.
(package-synopsis-string): New procedure.
(package->recutils): Use it.
* guix/scripts/lint.scm (check-synopsis-style)[check-texinfo-markup]:
New procedure. Use it in checks.
* tests/lint.scm: Test it.
* gnu/packages/perl.scm (perl-try-tiny)[synopsis]: Adjust for the
Texinfo markup.
* guix/build/download.scm (open-connection-for-uri): Add note about
same-named binding in Guile 2.2.0.
* guix/http-client.scm: Use 'guix:open-connection-for-uri' for the
procedure coming from (guix build download).
* guix/scripts/lint.scm: Likewise.
* guix/scripts/substitute.scm: Likewise.
* guix/scripts/pack.scm (self-contained-tarball): Add #:target.
(docker-image): Add #:target.
[build]: Pass it to 'build-docker-image'.
(%options, show-help): Add '--target'.
(guix-pack): Pass TARGET to 'profile-derivation' and to 'build-image'.
* guix/docker.scm (build-docker-image): Add #:system parameter and honor it.
* doc/guix.texi (Invoking guix pack): Document '--target'.
(Additional Build Options): Refer to the Autoconf manual instead of the
obsolete 'configure.info' for cross-compilation.
* guix/scripts/pack.scm (<compressor>)[package]: Remove.
[command]: Document as being a gexp with an absolute file name.
(%compressors): Adjust accordingly.
(self-contained-tarball): Simplify PATH expression. Move 'string-join'
for the compressor command on the build side.
(docker-image): Simplify PATH expression.
* tests/pack.scm (%gzip-compressor): Adjust accordingly.
* guix/build/cargo-build-system.scm (configure): Remove proprietary
dependencies. Add rust dependencies and configure Cargo to find them.
(build): Also build libraries, not just applications.
(file-sha256): New variable.
(generate-checksums): New variable. Export it.
(touch): New variable.
(install): Generate checksums so Cargo accepts the package.