Also, enable that, if opengl is in native DISTRO_FEATURES: this allows
mesa-native to build drivers that rely on libllbm, particularly llvmpipe,
which is a (sort of) accelerated software renderer that is the only
option on build hosts without dedicated or supported GPUs.

Signed-off-by: Alexander Kanavin <a...@linutronix.de>
---
 meta/recipes-devtools/llvm/llvm_git.bb | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/meta/recipes-devtools/llvm/llvm_git.bb 
b/meta/recipes-devtools/llvm/llvm_git.bb
index b4e983d2d0..f133653903 100644
--- a/meta/recipes-devtools/llvm/llvm_git.bb
+++ b/meta/recipes-devtools/llvm/llvm_git.bb
@@ -57,9 +57,11 @@ def get_llvm_arch(bb, d, arch_var):
 def get_llvm_host_arch(bb, d):
     return get_llvm_arch(bb, d, 'HOST_ARCH')
 
-PACKAGECONFIG ??= ""
+PACKAGECONFIG ??= "libllvm"
+PACKAGECONFIG:class-native = "${@bb.utils.contains('DISTRO_FEATURES', 
'opengl', 'libllvm', '', d)}"
 # if optviewer OFF, force the modules to be not found or the ones on the host 
would be found
 PACKAGECONFIG[optviewer] = ",-DPY_PYGMENTS_FOUND=OFF 
-DPY_PYGMENTS_LEXERS_C_CPP_FOUND=OFF -DPY_YAML_FOUND=OFF,python3-pygments 
python3-pyyaml,python3-pygments python3-pyyaml"
+PACKAGECONFIG[libllvm] = ""
 
 #
 # Default to build all OE-Core supported target arches (user overridable).
@@ -102,14 +104,15 @@ do_compile:prepend:class-target() {
 }
 
 do_compile() {
+    if ${@bb.utils.contains('PACKAGECONFIG', 'libllvm', 'true', 'false', d)}; 
then
        ninja -v ${PARALLEL_MAKE}
-}
-
-do_compile:class-native() {
+    else
        ninja -v ${PARALLEL_MAKE} llvm-config llvm-tblgen
+    fi
 }
 
 do_install() {
+    if ${@bb.utils.contains('PACKAGECONFIG', 'libllvm', 'true', 'false', d)}; 
then
        DESTDIR=${D} ninja -v install
 
         # llvm harcodes usr/lib as install path, so this corrects it to actual 
libdir
@@ -121,9 +124,10 @@ do_install() {
 
         # reproducibility
         sed -i -e 's,${WORKDIR},,g' ${D}/${libdir}/cmake/llvm/LLVMConfig.cmake
+    fi
 }
 
-do_install:class-native() {
+do_install:append:class-native() {
        install -D -m 0755 ${B}/bin/llvm-tblgen ${D}${bindir}/llvm-tblgen${PV}
        install -D -m 0755 ${B}/bin/llvm-config ${D}${bindir}/llvm-config${PV}
        ln -sf llvm-config${PV} ${D}${bindir}/llvm-config
-- 
2.30.2

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