mesa: disable gfxstream on clangarm64.

mingw-w64-mesa/PKGBUILD

@@ -4,7 +4,7 @@ _realname=mesa
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=25.0.1
-pkgrel=1
+pkgrel=2
 pkgdesc="Open-source implementation of the OpenGL, Vulkan and OpenCL specifications (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw64' 'ucrt64' 'clang64' 'clangarm64')
@@ -109,9 +109,14 @@ build() {
   -Dmicrosoft-clc=enabled
   -Dspirv-to-dxil=true
   -Dstatic-libclc=all
-  -Dvulkan-drivers=microsoft-experimental,swrast,gfxstream
   )
 
+  if [[ ${CARCH} == x86_64 ]]; then
+    _meson_options+=(-Dvulkan-drivers=microsoft-experimental,swrast,gfxstream)
+  else
+    _meson_options+=(-Dvulkan-drivers=microsoft-experimental,swrast)
+  fi
+
   MSYS2_ARG_CONV_EXCL="--prefix=" \
   PROCESSOR_ARCHITECTURE="${CARCH}" \
   ${MINGW_PREFIX}/bin/meson setup \