Age | Commit message (Collapse) | Author |
|
Thanks to Mark H. Weaver <mhw@netris.org> for insightful discussions
and suggestions.
* guix/packages.scm (<package>)[graft]: New field.
(patch-and-repack): Invoke 'package-derivation' with #:graft? #f.
(package-source-derivation): Likewise. Do not use (%guile-for-build)
in call to 'patch-and-repack', and we could end up using a grafted
Guile.
(expand-input): Likewise, also for 'package-cross-derivation' call.
(package->bag): Add #:graft? parameter. Honor it. Use 'strip-append'
instead of 'package-full-name'.
(input-graft, input-cross-graft, bag-grafts, package-grafts): New
procedures.
(package-derivation, package-cross-derivation): Add #:graft? parameter
and honor it.
* gnu/packages/bootstrap.scm (package-with-bootstrap-guile): Add
recursive call on 'graft'.
* guix/build-system/gnu.scm (package-with-explicit-inputs,
package-with-extra-configure-variable, static-package): Likewise.
(gnu-build): Use the ungrafted Guile to avoid full rebuilds.
(gnu-cross-build): Likewise.
* guix/build-system/cmake.scm (cmake-build): Likewise.
* guix/build-system/glib-or-gtk.scm (glib-or-gtk-build): Likewise.
* guix/build-system/perl.scm (perl-build): Likewise.
* guix/build-system/python.scm (python-build): Likewise.
* guix/build-system/ruby.scm (ruby-build): Likewise.
* guix/build-system/trivial.scm (guile-for-build): Likewise.
* tests/packages.scm ("package-derivation, direct graft",
"package-cross-derivation, direct graft", "package-grafts,
indirect grafts", "package-grafts, indirect grafts, cross",
"package-grafts, indirect grafts, propagated inputs",
"package-derivation, indirect grafts"): New tests.
("bag->derivation", "bag->derivation, cross-compilation"): Wrap in
'parameterize'.
* doc/guix.texi (Security Updates): New node.
(Invoking guix build): Document --no-graft.
|
|
* tests/packages.scm ("package->bag, propagated inputs"): New test.
|
|
* guix/packages.scm (package-transitive-supported-systems): New procedure.
* tests/packages.scm ("package-transitive-supported-systems"): New test.
* build-aux/hydra/gnu-system.scm (package->job): Use it.
|
|
* guix/packages.scm (<package> printer): Check whether LOC is #f.
* tests/packages.scm ("printer with location", "printer without
location"): New tests.
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
* 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).
|
|
* tests/packages.scm ("package-source-derivation, snippet"): Skip when
networking is missing.
|
|
Conflicts:
guix/packages.scm
|
|
* guix/packages.scm (package-field-location): Set
%FILE-PORT-NAME-CANONICALIZATION.
* tests/packages.scm ("package-field-location, relative file name"): New
test.
|
|
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.
|
|
* 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.
|
|
Conflicts:
guix/packages.scm
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
* 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>.
|
|
* 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.
|
|
* guix/build-system/trivial.scm (guile-for-build): New procedure.
(trivial-build): Use it.
(trivial-cross-build): New procedure.
(trivial-build-system): Use it.
|
|
* 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'.
|
|
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
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
* guix/packages.scm (package-output): New procedure.
* tests/packages.scm ("package-output"): New test.
|
|
* .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.
|
|
* 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/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.
|
|
* distro.scm: Rename to...
* gnu/packages.scm: ... this. Update all users accordingly.
* Makefile.am (MODULES): Adjust accordingly.
* po/POTFILES.in: Likewise.
|
|
* 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.
|
|
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.
|
|
* 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.
|
|
* 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.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.
|
|
* tests/packages.scm (%bootstrap-inputs): Remove.
("GNU Hello"): Rename to...
("GNU Make, bootstrap"): ... this. Build GNU-MAKE-BOOT0 instead of
HELLO.
|
|
* 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.
|
|
* 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.
|
|
* tests/builders.scm, tests/derivations.scm, tests/packages.scm: Set
#:use-substitutes? #f for %STORE.
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
* 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'.
|
|
* 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'.
|