mesa: adapt recipe to upstream 26.1.4 structure

- drop obsolete/unapplied Redox platform patches 03/06/07
- keep only patches that still apply cleanly (01/02/04/05)
- switch non-existent platform 'redox' to upstream-supported wayland + egl-native-platform=surfaceless
- replace removed gallium driver alias 'swrast' with softpipe,llvmpipe

local/recipes/libs/mesa/recipe.toml

@@ -2,15 +2,15 @@
 tar = "https://gitlab.freedesktop.org/mesa/mesa/-/archive/mesa-26.1.4/mesa-mesa-26.1.4.tar.gz"
 blake3 = "2299cd27430592c9a4a21c6345e74d5df278f4cd5839875ffd75abc3c1e988f9"
 upstream = "https://gitlab.freedesktop.org/mesa/mesa"
-# Patches 01,03,06,07 need manual rebase for 26.1.4 (dry-run: hunk failures).
+# Mesa 26.1.4 no longer has a Redox EGL platform file upstream.
+# Keep only the patches that still apply cleanly; the Redox platform-specific
+# patches must be rebased separately once the modern surfaceless path is
+# validated.
 patches = [
     "mesa/01-virgl-redox-disk-cache.patch",
     "mesa/02-gbm-dumb-prime-export.patch",
-    "mesa/03-platform-redox-gpu-probe.patch",
     "mesa/04-sys-ioccom-stub-header.patch",
     "mesa/05-vk-sync-wchar-include.patch",
-    "mesa/06-redox-surface-image-fields.patch",
-    "mesa/07-wayland-scanner-env-override.patch",
 ]
 [build]
 template = "custom"
@@ -73,10 +73,11 @@ cookbook_meson \
     -Degl=enabled \
     -Dgbm=enabled \
     -Dglx=disabled \
-    -Dgallium-drivers=swrast,virgl,crocus,iris \
+    -Dgallium-drivers=softpipe,llvmpipe,virgl,crocus,iris \
     -Dllvm=enabled \
     -Dosmesa=true \
-    -Dplatforms=redox,wayland \
+    -Dplatforms=wayland \
+    -Degl-native-platform=surfaceless \
     -Dshader-cache=disabled \
     -Dc_args="['-Wno-error=implicit-function-declaration','-Wno-error','-std=gnu11','-Dstatic_assert=_Static_assert']" \
     -Dcpp_args="['-Wno-error=implicit-function-declaration','-Wno-error']" \