Re: [PATCH] llvm: fix native llvm-config RUNPATH

["Vincent Davis Jr" <vince@underview.tech>]

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To answer second question. When you don't include

EXTRA_OECMAKE:append:class-native = "\
-DLLVM_LIBDIR_SUFFIX=64 \
"

meson configure fails with
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| llvm-config found: YES (/../../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/recipe-sysroot/usr/bin/crossscripts/llvm-config15.0.1) 15.0.1
| Run-time dependency LLVM (modules: amdgpu, asmparser, bitreader, bitwriter, core, engine, executionengine, instcombine, ipo, mcdisassembler, mcjit, native, scalaropts, transformutils, coroutines) found: NO (tried cmake and config-tool)
| Building fallback subproject with default_library=shared
|
| ../mesa-22.2.2/meson.build:1783:2: ERROR: Neither a subproject directory nor a llvm.wrap file was found.
|
| A full log can be found at /../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/build/meson-logs/meson-log.txt
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Now if you

$ cat < /../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/build/meson-logs/meson-log.txt

You see

llvm-config found: YES (/../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/recipe-sysroot/usr/bin/crossscripts/llvm-config15.0.1) 15.0.1
llvm-config --shared-mode returned an error
Run-time dependency LLVM (modules: amdgpu, asmparser, bitreader, bitwriter, core, engine, executionengine, instcombine, ipo, mcdisassembler, mcjit, native, scalaropts, transformutils, coroutines) found: NO (tried cmake and config-tool)

Now run llvm-config --shared-mode directly you see

$ llvm-config --shared-mode
llvm-config: error: component libraries and shared library
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llvm-config: error: missing: /../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/recipe-sysroot/usr/lib/libLLVMMCParser.a
llvm-config: error: missing: /../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/recipe-sysroot/usr/lib/libLLVMTextAPI.a
llvm-config: error: missing: /../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/recipe-sysroot/usr/lib/libLLVMObject.a
llvm-config: error: missing: /../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/recipe-sysroot/usr/lib/libLLVMDebugInfoDWARF.a
llvm-config: error: missing: /../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/recipe-sysroot/usr/lib/libLLVMDebugInfoMSF.a
llvm-config: error: missing: /../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/recipe-sysroot/usr/lib/libLLVMDebugInfoPDB.a
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../mesa/2_22.2.2-r0/mesa-22.2.2# llvm-config --libdir
/../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/recipe-sysroot/usr/lib

../mesa/2_22.2.2-r0/mesa-22.2.2# ls /../../.../../../../../../../tmp/work/amd64-northstar-linux/mesa/2_22.2.2-r0/recipe-sysroot/usr
bin  include  lib64  share

That folder doesn't exists for me.

Also another false statement on my end its llvm-config that hard sets directory where to load libs.
mesa never calls llvm-config --libdir.

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