mesa: Fix native build on hosts with llvm-dev installed

This issue is always there, it just shows up with newer LLVM since
symbol mismatches are being found otherwise it was happily linking with
host libLLVM.so silently.

(From OE-Core rev: 941089fa63e2b38608291251d52a354f0f624926)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 43 insertions, 0 deletions

diff --git a/meta/recipes-graphics/mesa/files/0001-meson-Disable-cmake-dependency-detector-for-llvm.patch b/meta/recipes-graphics/mesa/files/0001-meson-Disable-cmake-dependency-detector-for-llvm.patch
new file mode 100644
index 0000000000..4cded0546d
--- /dev/null
+++ b/meta/recipes-graphics/mesa/files/0001-meson-Disable-cmake-dependency-detector-for-llvm.patch
@@ -0,0 +1,42 @@
+From 00d41cd5aa3f4b494dc276c9b4ccdc096310c91f Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 28 Sep 2023 15:34:22 -0700
+Subject: [PATCH] meson: use llvm-config instead of cmake to fix linking errors with meson 1.2.1
+
+meson dependency auto dependency detection uses cmake and then
+config-tool to process dependencies, in mesa the logic to detect llvm is
+using auto detection which means if it finds cmake then it will try to
+use cmake method. Cmake method works ok except a case when llvm-dev
+package is installed on the build host then it generates its own
+native.meson file and ignores OE supplied meson.native file which has
+correct llvm-config tool specified which is pointing to llvm-config from
+native sysroot. The generated meson.native file points to one found in
+/usr/bin and there onwards detector finds native install of llvm and
+configures that into building native mesa package.
+
+Since cmake detector does not always work, disable it by default and use
+config-tool which works in all cases. This is suggested in below issues
+too
+
+A similar issue is open in meson upstream [1] and mesa [2]
+
+[1] https://github.com/mesonbuild/meson/issues/10483
+[2] https://gitlab.freedesktop.org/mesa/mesa/-/issues/6738
+
+Upstream-Status: Submitted [https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25438]
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ meson.build | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/meson.build
++++ b/meson.build
+@@ -1659,6 +1659,7 @@ with_llvm = false
+ if _llvm.allowed()
+   dep_llvm = dependency(
+     'llvm',
++    method : host_machine.system() == 'windows' ? 'auto' : 'config-tool',
+     version : _llvm_version,
+     modules : llvm_modules,
+     optional_modules : llvm_optional_modules,
diff --git a/meta/recipes-graphics/mesa/mesa.inc b/meta/recipes-graphics/mesa/mesa.inc
index 559d445ae5..4e824500dd 100644
--- a/meta/recipes-graphics/mesa/mesa.inc
+++ b/meta/recipes-graphics/mesa/mesa.inc
@@ -19,6 +19,7 @@ SRC_URI = "https://mesa.freedesktop.org/archive/mesa-${PV}.tar.xz \
            file://0001-meson-misdetects-64bit-atomics-on-mips-clang.patch \
            file://0001-gallium-Fix-build-with-llvm-17.patch \
            file://0001-intel-Allow-using-intel_clc-from-the-system.patch \
+           file://0001-meson-Disable-cmake-dependency-detector-for-llvm.patch \
            "
 
 SRC_URI[sha256sum] = "45434ff91a709844130a3174d9c0ef39c6b50725b2bb0c13e736f36134db14ad"