nixpkgs/pkgs/development/tools/build-managers/meson/default.nix

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{ lib, python3Packages, stdenv, writeTextDir, substituteAll, targetPackages }:
python3Packages.buildPythonApplication rec {
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version = "0.49.2";
pname = "meson";
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src = python3Packages.fetchPypi {
inherit pname version;
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sha256 = "0ckkzq0kbnnk4rwv20lggm9a4fb5054jbv99i9pwjhid23qy7059";
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};
postFixup = ''
pushd $out/bin
# undo shell wrapper as meson tools are called with python
for i in *; do
mv ".$i-wrapped" "$i"
done
popd
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# Do not propagate Python
rm $out/nix-support/propagated-build-inputs
'';
patches = [
# Upstream insists on not allowing bindir and other dir options
# outside of prefix for some reason:
# https://github.com/mesonbuild/meson/issues/2561
# We remove the check so multiple outputs can work sanely.
./allow-dirs-outside-of-prefix.patch
# Unlike libtool, vanilla Meson does not pass any information
# about the path library will be installed to to g-ir-scanner,
# breaking the GIR when path other than ${!outputLib}/lib is used.
# We patch Meson to add a --fallback-library-path argument with
# library install_dir to g-ir-scanner.
./gir-fallback-path.patch
# In common distributions, RPATH is only needed for internal libraries so
# meson removes everything else. With Nix, the locations of libraries
# are not as predictable, therefore we need to keep them in the RPATH.
# At the moment we are keeping the paths starting with /nix/store.
# https://github.com/NixOS/nixpkgs/issues/31222#issuecomment-365811634
(substituteAll {
src = ./fix-rpath.patch;
inherit (builtins) storeDir;
})
] ++ lib.optionals stdenv.isDarwin [
# We use custom Clang, which makes Meson think *not Apple*, while still
# relying on system linker. When it detects standard Clang, Meson will
# pass it `-Wl,-O1` flag but optimizations are not recognized by
# Mac linker.
# https://github.com/mesonbuild/meson/issues/4784
./fix-objc-linking.patch
];
setupHook = ./setup-hook.sh;
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crossFile = writeTextDir "cross-file.conf" ''
[binaries]
c = '${targetPackages.stdenv.cc.targetPrefix}cc'
cpp = '${targetPackages.stdenv.cc.targetPrefix}c++'
ar = '${targetPackages.stdenv.cc.bintools.targetPrefix}ar'
strip = '${targetPackages.stdenv.cc.bintools.targetPrefix}strip'
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pkgconfig = 'pkg-config'
[properties]
needs_exe_wrapper = true
[host_machine]
system = '${targetPackages.stdenv.targetPlatform.parsed.kernel.name}'
cpu_family = '${targetPackages.stdenv.targetPlatform.parsed.cpu.family}'
cpu = '${targetPackages.stdenv.targetPlatform.parsed.cpu.name}'
endian = ${if targetPackages.stdenv.targetPlatform.isLittleEndian then "'little'" else "'big'"}
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'';
# 0.45 update enabled tests but they are failing
doCheck = false;
# checkInputs = [ ninja pkgconfig ];
# checkPhase = "python ./run_project_tests.py";
inherit (stdenv) cc;
isCross = stdenv.targetPlatform != stdenv.hostPlatform;
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meta = with lib; {
homepage = http://mesonbuild.com;
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description = "SCons-like build system that use python as a front-end language and Ninja as a building backend";
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license = licenses.asl20;
maintainers = with maintainers; [ mbe rasendubi ];
platforms = platforms.all;
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};
}