BLD: Scipy meson build with Nix #41
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This should be dynamically generated later, but for now we need these to be able to import scipy and run the tests.
Also a few tweaks to mesondev.sh
Note, in the distutils build we seem to want to dynamically choose between c++11 and c++14, see `set_cxx_flags_hook` usage. Meson by default seems to choose c++17, or the highest that's available locally.
These have been here for years, and it seems we don't want to fix them.
scipy/signal was interfering with an import (it was hiding stdlib `signal`)
All tests that are run now pass again
* added minpack in optimize/meson.build * added compiler flags * corrected compiler flags * added rootfind to meson.build * removed redundant flag handling for compilers * lbfgsb_module compiling with meson and ninja * removed redundant dependency * moduleTNC, cobyla working * added slsqp to meson.build * removed flags for c/cpp warnings * added __nnls, _group_columns * pythran handling changed * pythran working in optimize * added _bglu_dense * everything complete except _highs * added _highs and removed cythonize * fixed cython_optimize build * Added new lines * WIP: disable building extensions that depend on cython_blas/lapack This doesn't work well yet, depends on the "structured sources" Meson PR. Until then we can have it a little (like done for `cython_blas` itself), but let's not spend much time on that now - rather wait for that PR to land. Co-authored-by: Ralf Gommers <ralf.gommers@gmail.com>
MAINT: Removed `Wno-cpp` flags
Fix many Meson build issues, mostly with Cython
The implementation is buggy (see scipy#2877), and this test is failing with Meson
rgommers
reviewed
Jul 25, 2021
| @@ -6,7 +6,7 @@ if meson.get_compiler('cpp', native: true).sizeof('void*') > 4 | |||
| endif | |||
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| include = include_directories('include') | |||
| inc_boost = include_directories('..' / '..' / '_lib' / 'boost') | |||
| boost_dep = dependency('boost') | |||
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Note that https://github.com/scipy/boost-headers-only is at Boost 1.75. Boost 1.76 was broken in a way that was not easy to figure out. If you want to do this unbundling (also in nixpkgs) then please use 1.75.0.
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Right, the intention is indeed to unbundle. I think the patch can be mainlined if a fallback is specified, but I have not tried that yet.
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The stars are aligning enough that I've been learning a bit of Nix over the past days. My time is limited, but I think I should be able to wrap my head around this PR at some point. |
This commit adds a Nix flake for building scipy with Nix. Note flakes are an experimental Nix feature.
For some reason we get the following issue when running the build inside a nix-build: scipy/linalg/tests/meson.build:27:4: ERROR: File test_lapack.py does not exist.
Declare boost as a dependency, instead of referring to its include directories. This is more portable.
Flake input changes: * Updated 'nixpkgs': 'github:nixos/nixpkgs/979ac3960d14ff816bd364b0046949a182700755' -> 'github:nixos/nixpkgs/fb7a4364eed25089dab218c811e26bda7ad91b00'
Flake input changes: * Updated 'nixpkgs': 'github:nixos/nixpkgs/fb7a4364eed25089dab218c811e26bda7ad91b00' -> 'github:nixos/nixpkgs/1c586291425a2e2c5683db88a829dbc419f23e45'
Flake input changes: * Updated 'nixpkgs': 'github:nixos/nixpkgs/1c586291425a2e2c5683db88a829dbc419f23e45' -> 'github:nixos/nixpkgs/2888e46885d6b5ff6463d69c5884c1069891d066'
Flake input changes: * Updated 'nixpkgs': 'github:nixos/nixpkgs/2888e46885d6b5ff6463d69c5884c1069891d066' -> 'github:nixos/nixpkgs/b18b496a6349cfe11a4a3d1d56fe16558b9b96eb'
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Reference issue
What does this implement/fix?
Demonstrate how to perform a Nix build of the meson version of scipy.
Additional information
Note there is no intention of me on getting this merged; I just like to demo how it works and see if we run into any issues already at this point.