diff otherwise we will get errors during link time.

Setup in rust-llvm
-DLLVM_ENABLE_ZLIB=OFF \
-DLLVM_ENABLE_ZSTD=OFF \
-DLLVM_ENABLE_FFI=OFF \

Setup in llvm
-DLLVM_ENABLE_FFI=ON \

*When multilibs enabled:

llvm-config expects static libraries to be located in the lib directory rather than
lib64. However, since we are copying the natively built llvm-config to target sysroot
and running it and llvm-config doesn't know anything about lib64 existence. To accommodate
this without breaking multilib behavior, we are creating a symlink from 'lib' to 'lib64'
directory.

Previously, when we depended on rust-llvm, this worked because we specified:
-DCMAKE_INSTALL_PREFIX:PATH=${libdir}/llvm-rust

With this setup, llvm-config was installed inside ${libdir}/llvm-rust, which included
its own bin and lib directories. Thus, llvm-config located in bin would correctly find
the libraries in the adjacent lib directory.

Even when multilib was enabled or not, llvm-config would still look for libraries under
lib in this structure, so everything functioned as expected.

Signed-off-by: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com>
---
 meta/recipes-devtools/clang/llvm_git.bb   |  2 +-
 meta/recipes-devtools/rust/rust_1.90.0.bb | 17 +++++++++++++----
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/meta/recipes-devtools/clang/llvm_git.bb b/meta/recipes-devtools/clang/llvm_git.bb
index d2b060ff88..2f47af8d7a 100644
--- a/meta/recipes-devtools/clang/llvm_git.bb
+++ b/meta/recipes-devtools/clang/llvm_git.bb
@@ -27,7 +27,6 @@ OECMAKE_SOURCEPATH = "${S}/llvm"
 # https://github.com/llvm/llvm-project/blob/main/llvm/CMakeLists.txt
 LLVM_TARGETS_GPU ?= "${@bb.utils.contains_any('DISTRO_FEATURES', 'opencl opengl vulkan', 'AMDGPU;NVPTX;SPIRV', '', d)}"
 LLVM_TARGETS_TO_BUILD ?= "AArch64;ARM;BPF;Mips;PowerPC;RISCV;X86;LoongArch;${LLVM_TARGETS_GPU}"
-LLVM_TARGETS_TO_BUILD:class-target ?= "${@get_clang_host_arch(bb, d)};BPF;${LLVM_TARGETS_GPU}"
 
 LLVM_EXPERIMENTAL_TARGETS_TO_BUILD ?= ""
 
@@ -37,6 +36,7 @@ HF[vardepvalue] = "${HF}"
 
 EXTRA_OECMAKE += "-DCMAKE_BUILD_TYPE=MinSizeRel \
                   -DLLVM_ENABLE_BINDINGS=OFF \
+                  -DLLVM_INSTALL_UTILS=ON \
                   -DLLVM_ENABLE_FFI=ON \
                   -DLLVM_ENABLE_RTTI=ON \
                   -DLLVM_TARGETS_TO_BUILD='${LLVM_TARGETS_TO_BUILD}' \
diff --git a/meta/recipes-devtools/rust/rust_1.90.0.bb b/meta/recipes-devtools/rust/rust_1.90.0.bb
index 5d804c7398..0f154c981e 100644
--- a/meta/recipes-devtools/rust/rust_1.90.0.bb
+++ b/meta/recipes-devtools/rust/rust_1.90.0.bb
@@ -7,7 +7,7 @@ LIC_FILES_CHKSUM = "file://COPYRIGHT;md5=11a3899825f4376896e438c8c753f8dc"
 inherit rust
 inherit cargo_common
 
-DEPENDS += "rust-llvm"
+DEPENDS += "llvm"
 # native rust uses cargo/rustc from binary snapshots to bootstrap
 # but everything else should use our native builds
 DEPENDS:append:class-target = " cargo-native rust-native"
@@ -28,8 +28,8 @@ PV .= "${@bb.utils.contains('RUST_CHANNEL', 'stable', '', '-${RUST_CHANNEL}', d)
 
 export FORCE_CRATE_HASH = "${BB_TASKHASH}"
 
-RUST_ALTERNATE_EXE_PATH ?= "${STAGING_LIBDIR}/llvm-rust/bin/llvm-config"
-RUST_ALTERNATE_EXE_PATH_NATIVE = "${STAGING_LIBDIR_NATIVE}/llvm-rust/bin/llvm-config"
+RUST_ALTERNATE_EXE_PATH ?= "${STAGING_BINDIR}/llvm-config"
+RUST_ALTERNATE_EXE_PATH_NATIVE = "${STAGING_BINDIR_NATIVE}/llvm-config"
 
 # We don't want to use bitbakes vendoring because the rust sources do their
 # own vendoring.
@@ -199,7 +199,7 @@ rust_runx () {
     unset CXXFLAGS
     unset CPPFLAGS
 
-    export RUSTFLAGS="${RUST_DEBUG_REMAP}"
+    export RUSTFLAGS="${RUST_DEBUG_REMAP} -Clink-arg=-lz -Clink-arg=-lzstd"
 
     # Copy the natively built llvm-config into the target so we can run it. Horrible,
     # but works!
@@ -213,6 +213,15 @@ rust_runx () {
         fi
     fi
 
+    # llvm-config expects static libraries to be in the 'lib' directory rather than 'lib64' when
+    # multilibs enabled. Since we are copying the natively built llvm-config into the target sysroot
+    # and executing it there, it will default to searching in 'lib', as it is unaware of the 'lib64'
+    # directory. To ensure llvm-config can locate the necessary libraries, create a symlink from 'lib'
+    # to 'lib64'.
+    if [ -d "${STAGING_DIR_TARGET}/usr/lib64" ] && [ ! -e "${STAGING_DIR_TARGET}/usr/lib" ]; then
+        ln -s lib64 "${STAGING_DIR_TARGET}/usr/lib"
+    fi
+
     oe_cargo_fix_env
 
     python3 src/bootstrap/bootstrap.py ${@oe.utils.parallel_make_argument(d, '-j %d')} "$@" --verbose