[PATCH v2] buildtools: allow a different minimum meson version for Windows

[David Marchand]

On Mon, Jun 16, 2025 at 5:38 PM Bruce Richardson
<bruce.richardson at intel.com> wrote:
>
> On Mon, Jun 16, 2025 at 08:31:11AM -0700, Andre Muezerie wrote:
> > There is a minimum meson version specified in the DPDK meson project
> > section, which has been documented. This string is parsed by
> > buildtools\get-min-meson-version.py and this information is used by
> > lab automation to install the corresponding meson package on the
> > build machine.
> >
> > Turns out that the meson version specified on the DPDK project
> > (0.57.x) is buggy on Windows: it has issues related to path
> > manipulation, and these issues are causing failures. Therefore,
> > a newer meson is required on Windows.
> >
> > To avoid bringing the minimum requirements up for all operating
> > systems before a more appropriate release, this patch implements
> > a mechanism allowing a different version to be specified for Windows.
> >
> > Signed-off-by: Andre Muezerie <andremue at linux.microsoft.com>
> Acked-by: Bruce Richardson <bruce.richardson at intel.com>

Applied, thanks.

Two (non blocking) comments on this patch:
- could you send a followup patch for using this with the MSVC target
in GHA (see .github/workflows/build.yml) ?

- there is nothing really checking whether the minimum version is
correct on Windows.
  Would it make sense to have a "runtime" check in meson out of the
project() declaration?
  Something like (untested, probably broken):

diff --git a/meson.build b/meson.build
index 2423884df7..22128b6942 100644
--- a/meson.build
+++ b/meson.build
@@ -11,9 +11,13 @@ project('DPDK', 'c',
             'warning_level=2',
         ],
         meson_version: '>= 0.57.2'
-        # meson_version_windows: '>= 1.5.2'
 )

+meson_version_windows='1.5.2'
+if is_windows and meson.version() < meson_version_windows
+    error('Minimum meson version on Windows is ' + meson_version_windows)
+endif
+
 fs = import('fs')

 # check for developer mode



-- 
David Marchand