[PATCH v4 2/3] mesa-libclc: New recipe for forking libclc for Rusticl purposes in Mesa

["Zoltán Böszörményi" <zboszor@gmail.com>]

See the reasoning and discussion at
https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/43020
which was merged and backported to 26.2.0.

TL;DR: LLVM constantly introduces breaking changes that cause
regressions for running OpenCL CTS with Rusticl and finally
Karol Herbst had enough.

This fork is from the LLVM 22 version of libclc and contains the
necessary fixes to make Rusticl pass OpenCL CTS.

Signed-off-by: Zoltán Böszörményi <zboszor@gmail.com>
---
 meta/conf/distro/include/maintainers.inc      |  1 +
 .../mesa/mesa-libclc_22.1.8.3.bb              | 26 +++++++++++++++++++
 2 files changed, 27 insertions(+)
 create mode 100644 meta/recipes-graphics/mesa/mesa-libclc_22.1.8.3.bb

diff --git a/meta/conf/distro/include/maintainers.inc b/meta/conf/distro/include/maintainers.inc
index c5b701c244..feccf29ce4 100644
--- a/meta/conf/distro/include/maintainers.inc
+++ b/meta/conf/distro/include/maintainers.inc
@@ -524,6 +524,7 @@ RECIPE_MAINTAINER:pn-menu-cache = "Ross Burton <ross.burton@arm.com>"
 RECIPE_MAINTAINER:pn-mesa = "Unassigned <unassigned@yoctoproject.org>"
 RECIPE_MAINTAINER:pn-mesa-demos = "Unassigned <unassigned@yoctoproject.org>"
 RECIPE_MAINTAINER:pn-mesa-gl = "Unassigned <unassigned@yoctoproject.org>"
+RECIPE_MAINTAINER:pn-mesa-libclc = "Zoltán Böszörményi <zboszor@gmail.com>"
 RECIPE_MAINTAINER:pn-mesa-tools-native = "Unassigned <unassigned@yoctoproject.org>"
 RECIPE_MAINTAINER:pn-meson = "Trevor Gamblin <tgamblin@baylibre.com>"
 RECIPE_MAINTAINER:pn-meta-environment-${MACHINE} = "Richard Purdie <richard.purdie@linuxfoundation.org>"
diff --git a/meta/recipes-graphics/mesa/mesa-libclc_22.1.8.3.bb b/meta/recipes-graphics/mesa/mesa-libclc_22.1.8.3.bb
new file mode 100644
index 0000000000..c93b5b9d9d
--- /dev/null
+++ b/meta/recipes-graphics/mesa/mesa-libclc_22.1.8.3.bb
@@ -0,0 +1,26 @@
+SUMMARY = "Mesa fork of libclc: Implementation of the library requirements of the OpenCL C programming language."
+HOMEPAGE = "https://gitlab.freedesktop.org/karolherbst/mesa-libclc/"
+SECTION = "devel"
+LICENSE = "Apache-2.0-with-LLVM-exception"
+LIC_FILES_CHKSUM = "file://LICENSE.TXT;md5=7cc795f6cbb2d801d84336b83c8017db"
+
+SRC_URI = "git://gitlab.freedesktop.org/karolherbst/mesa-libclc.git;protocol=https;branch=llvm_22"
+
+SRCREV = "87f66007242ff10e9e84bf32be84f9057f6abc75"
+
+inherit cmake pkgconfig
+
+# Depend explicitly on clang-native instead of using TOOLCHAIN as the build
+# objects from this recipe are build explicitly using clang for GPU targets.
+# We could INHIBIT_DEFAULT_DEPS to avoid any other toolchain but then we need
+# to wrestle CMake to configure without a toolchain.
+DEPENDS += "clang-native spirv-llvm-translator-native"
+
+# Semicolon-separated list of targets to build
+LIBCLC_TARGETS ?= "all"
+
+EXTRA_OECMAKE += "-DLIBCLC_TARGETS_TO_BUILD='${LIBCLC_TARGETS}'"
+
+FILES:${PN} += "${datadir}/mesa-clc"
+
+BBCLASSEXTEND = "native nativesdk"
-- 
2.55.0