File clangd-cmake-non-standard-layout.patch of Package llvm12

From f51ab1871655a9a96134c2636c37dcb5a6b01ac3 Mon Sep 17 00:00:00 2001
From: serge-sans-paille <sguelton@redhat.com>
Date: Mon, 22 Mar 2021 10:05:25 +0100
Subject: [PATCH] Make clangd CompletionModel usable even with non-standard
 (but supported) layout

llvm supports specifying a non-standard layout where each project lies in its
own place. Do not assume a fixed layout and use the appropriate cmake variable
instead.

Differential Revision: https://reviews.llvm.org/D96787
---
 clang-tools-extra/clangd/quality/CompletionModel.cmake | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/clang-tools-extra/clangd/quality/CompletionModel.cmake b/clang-tools-extra/clangd/quality/CompletionModel.cmake
index 60c6d2aa8433..41bc2ed1890b 100644
--- a/clang-tools-extra/clangd/quality/CompletionModel.cmake
+++ b/clang-tools-extra/clangd/quality/CompletionModel.cmake
@@ -5,8 +5,8 @@
 # will define a C++ class called ${cpp_class} - which may be a
 # namespace-qualified class name.
 function(gen_decision_forest model filename cpp_class)
-  set(model_compiler ${CMAKE_SOURCE_DIR}/../clang-tools-extra/clangd/quality/CompletionModelCodegen.py)
-  
+  set(model_compiler ${LLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR}/clangd/quality/CompletionModelCodegen.py)
+
   set(output_dir ${CMAKE_CURRENT_BINARY_DIR})
   set(header_file ${output_dir}/${filename}.h)
   set(cpp_file ${output_dir}/${filename}.cpp)
-- 
2.31.1