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gnu: meson: Use a custom build-system.

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This allows us to decouple meson and all its dependents from the
pyproject-build-system, and avoid a lot of rebuilds (rusts, llvm...).

* gnu/packages/build-tools.scm (meson)
[build-system]: Replace pyproject-build-system with a patched
gnu-build-system.
[arguments]<#:phases>: Adapt accordindly.
[native-inputs]: Replace python-setuptools by python-setuptools-bootstrap.

Change-Id: Ieb4b007847d567aad04734a62cfc6c07e2bb2f96
Signed-off-by: Sharlatan Hellseher <sharlatanus@gmail.com>
This commit is contained in:
Nicolas Graves
2025-10-30 23:45:22 +01:00
committed by Andreas Enge
parent 121bcd0699
commit f03ffef299
1 changed files with 30 additions and 17 deletions
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47
gnu/packages/build-tools.scm
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@@ -378,24 +378,37 @@ files and generates build instructions for the Ninja build system.")
(sha256
(base32
"13a9pj7d2mxgv5gbd78di4pb4w722vjis0vmk38m1vdm95v2f9yd"))))
(build-system pyproject-build-system)
(build-system gnu-build-system)
(arguments
(list #:tests? #f ;disabled to avoid extra dependencies
#:phases
#~(modify-phases %standard-phases
;; Meson calls the various executables in out/bin through the
;; Python interpreter, so we cannot use the shell wrapper.
(replace 'wrap
(lambda* (#:key inputs outputs #:allow-other-keys)
(substitute* (search-input-file outputs "bin/meson")
(("import sys" all)
(string-append
all "\n"
"sys.path.insert(0, '"
(site-packages inputs outputs)
"')"))))))))
(native-inputs (list python-setuptools))
(inputs (list python ninja))
(list
#:tests? #f ;disabled to avoid extra dependencies
;; Essentially a lighter copy of the former python-build-system.
;; Using it rather than pyproject-build-system allows to edit the latter
;; without a C++ world rebuild.
#:phases
#~(modify-phases %standard-phases
(delete 'bootstrap)
(delete 'configure)
(replace 'build
(lambda _
(invoke "python" "./setup.py" "build")))
(replace 'install
(lambda _
(invoke "python" "./setup.py" "install"
(string-append "--prefix=" #$output) "--no-compile")
(invoke "python" "-m" "compileall"
"--invalidation-mode=unchecked-hash" #$output)))
;; Meson calls the various executables in out/bin through the
;; Python interpreter, so we cannot use the shell wrapper.
(add-after 'install 'wrap
(lambda _
(let* ((mdist (car (find-files #$output "^mdist\\.py$")))
(site (dirname (dirname mdist))))
(substitute* (string-append #$output "/bin/meson")
(("import sys" all)
(format #f "~a~%sys.path.insert(0, ~s)" all site)))))))))
(native-inputs (list python-setuptools-bootstrap))
(inputs (list python-wrapper ninja))
(home-page "https://mesonbuild.com/")
(synopsis "Build system designed to be fast and user-friendly")
(description