739e86f3e4
This commit reenables and implements correct response file support for Nasm. Fortified with the knowledge of #15867 and #15872, and with a quick chat with @nirbheek, I realised that the easiest way to fix this (since Ninja does not support custom argument spacing) is to do it the obvious way, with Meson's custom command support. This commit implements an abridged version of that: when a non-standard RspFileSyntax value is detected, the active NinjaBuildRule is temporarily resolved to the corresponding NinjaRule on the fly and if the latter says that a response file will be used, the NinjaBuildRule is immediately converted into a CUSTOM_COMMAND, completing the arguments with the bits for infile and outfile and triggering the executable serialization. That serializes the response file and pickles the command. Fixes building mpv with MSVC 2022+ and fdk-aac enabled.
Status
Dependencies
Latest Meson version supporting previous Python versions:
- Python 3.9: 1.11
- Python 3.8: 1.11
- Python 3.7: 1.11
- Python 3.6: 0.61.5
- Python 3.5: 0.56.2
- Python 3.4: 0.45.1
Installing from source
Meson is available on PyPI, so
it can be installed with pip3 install meson. The exact command to
type to install with pip can vary between systems, be sure to use
the Python 3 version of pip.
If you wish you can install it locally with the standard Python command:
python3 -m pip install meson
For builds using Ninja, Ninja can be downloaded directly from Ninja GitHub release page or via PyPI
python3 -m pip install ninja
More on Installing Meson build can be found at the getting meson page.
Creating a standalone script
Meson can be run as a Python zip app. To generate the executable run the following command:
./packaging/create_zipapp.py --outfile meson.pyz --interpreter '/usr/bin/env python3' <source checkout>
Running
Meson requires that you have a source directory and a build directory
and that these two are different. In your source root must exist a
file called meson.build. To generate the build system run this
command:
meson setup <source directory> <build directory>
Depending on how you obtained Meson the command might also be called
meson.py instead of plain meson. In the rest of this document we
are going to use the latter form.
You can omit either of the two directories, and Meson will substitute the current directory and autodetect what you mean. This allows you to do things like this:
cd <source root>
meson setup builddir
To compile, cd into your build directory and type ninja. To run unit
tests, type ninja test.
More on running Meson build system commands can be found at the
running meson page
or by typing meson --help.
Contributing
We love code contributions. See the contribution page on the website for details.
IRC
The channel to use is #mesonbuild either via Matrix (web
interface) or OFTC IRC.
Further info
More information about the Meson build system can be found at the project's home page.
Meson is a registered trademark of Jussi Pakkanen.