[Mesa-dev] Building Mesa3D with Meson and MSVC

[Liviu Prodea]

    Short story

As maintainer of this project -  https://github.com/pal1000/mesa-dist-win where I build Mesa3D drivers with MSVC aided by a script I got a request to build swr AVX512 target. After a bit of research I discovered it's not implemented in Scons build and opened this ticket to track its implementation: https://bugs.freedesktop.org/show_bug.cgi?id=104166
I got no response, but I don't mind because the implementation of the Meson build has swr AVX512. So I worked and refactored my build script to the point where I could attempt building Mesa3D with Meson and MSVC.

The result was not good as it can be seen here:

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Using Python Python 3.6.5 from C:\Software\DEVELO~1\projects\mesa\py3\python.exe.

WARNING: Python 3.x support is experimental.

Install/update python packages (y/n):                                                                                   Begin mesa build. Proceed (y/n):y
Do you want to build off-screen rendering drivers (y/n):

Build Mesa without LLVM (y=yes/n=quit). Only softpipe and osmesa will be available:y

Do you want to clean build (y/n):y


**********************************************************************
** Visual Studio 2017 Developer Command Prompt v15.6.7
** Copyright (c) 2017 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x64_x86'

Build command: C:\Software\DEVELO~1\projects\mesa\py3\python.exe C:\Software\DEVELO~1\projects\mesa\py3\Scripts\meson.py . .\build\windows-x86 --backend=vs2017

The Meson build system
Version: 0.46.0
Source dir: C:\Software\DEVELO~1\projects\mesa\mesa
Build dir: C:\Software\DEVELO~1\projects\mesa\mesa\build\windows-x86
Build type: native build
Program python found: YES (C:\Software\DEVELO~1\projects\mesa\py3\python.EXE)
Project name: mesa
Native C compiler: cl (msvc 19.13.26132)
Native C++ compiler: cl (msvc 19.13.26132)
Build machine cpu family: x86
Build machine cpu: x86
Program pkg-config found: NO

meson.build:402:0: ERROR:  Program(s) ['pkg-config'] not found or not executable

A full log can be found at C:\Software\DEVELO~1\projects\mesa\mesa\build\windows-x86\meson-logs\meson-log.txt

Microsoft Windows [Version 10.0.16299.402]
(c) 2017 Microsoft Corporation. All rights reserved.

C:\Software\DEVELO~1\projects\mesa\mesa>
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It appears it doesn't pick the platform correctly. Maybe I am doing a mistake or implementation it's incomplete. Also noticed -Dplatforms=windows option has been removed recently for some reason.


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