mesa-aco: Try to enable rusticl

Fixes #14

mesa-aco/debian/control

@@ -49,10 +49,13 @@ Build-Depends:
  libclang-15-dev | libclang-14-dev | libclang-13-dev | libclang-12-dev,
  libclang-cpp15-dev | libclang-cpp14-dev | libclang-cpp13-dev | libclang-cpp12-dev,
  libclc-15-dev | libclc-14-dev | libclc-13-dev | libclc-12-dev,
+ libllvmspirvlib-15-dev | libllvmspirvlib-14-dev | libllvmspirvlib-13-dev | libllvmspirvlib-12-dev,
  wayland-protocols (>= 1.24),
  zlib1g-dev,
  libglvnd-core-dev (>= 1.3.2),
  valgrind [amd64 arm64 armhf i386 mips64el mipsel powerpc ppc64 ppc64el s390x],
+ bindgen | build-essential,
+ rustc,
 Vcs-Git: https://salsa.debian.org/xorg-team/lib/mesa.git
 Vcs-Browser: https://salsa.debian.org/xorg-team/lib/mesa
 Homepage: https://mesa3d.org/

mesa-aco/debian/mesa-opencl-icd.install

@@ -1,3 +1,5 @@
 etc/OpenCL/vendors/mesa.icd
+etc/OpenCL/vendors/rusticl.icd
 usr/lib/*/gallium-pipe/*.so
 usr/lib/*/libMesaOpenCL*
+usr/lib/*/libRusticlOpenCL*

mesa-aco/debian/rules

@@ -12,6 +12,9 @@ DEB_HOST_ARCH      ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
 DEB_HOST_ARCH_OS   ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_OS)
 DEB_HOST_ARCH_CPU  ?= $(shell dpkg-architecture -qDEB_HOST_ARCH_CPU)
 
+dpkg_late_eval ?= $(or $(value DPKG_CACHE_$(1)),$(eval DPKG_CACHE_$(1) := $(shell $(2)))$(value DPKG_CACHE_$(1)))
+DEB_DISTRIBUTION = $(call dpkg_late_eval,DEB_DISTRIBUTION,dpkg-parsechangelog -SDistribution)
+
 # for finding the correct llvm-config when meson doesn't know about it yet
 export PATH:=/usr/lib/llvm-15/bin/:/usr/lib/llvm-14/bin/:/usr/lib/llvm-13/bin/:/usr/lib/llvm-12/bin/:/usr/lib/llvm-11/bin/:$(PATH)
 
@@ -125,6 +128,9 @@ else
 	GALLIUM_DRIVERS += radeonsi
 	confflags_GALLIUM += -Dllvm=enabled
 	confflags_GALLIUM += -Dgallium-opencl=icd
+	ifneq ($(DEB_DISTRIBUTION),focal)
+		confflags_GALLIUM += -Dgallium-rusticl=true
+	endif
 
 	# nine makes sense only on archs that build wine
 	ifneq (,$(filter $(DEB_HOST_ARCH), amd64 arm64 armel armhf i386 powerpc))