[libclc] libclc: CMake: include GetClangResourceDir (PR #155836)

[Romaric Jodin via cfe-commits]

https://github.com/rjodinchr created https://github.com/llvm/llvm-project/pull/155836

`get_clang_resource_dir` is not guarantee to be there. Make sure of it by including `GetClangResourceDir`.

>From 8ddc066ba0a3138becac427fcc61ce08fe557226 Mon Sep 17 00:00:00 2001
From: Romaric Jodin <rjodin at google.com>
Date: Thu, 28 Aug 2025 16:03:41 +0200
Subject: [PATCH] libclc: CMake: include GetClangResourceDir

`get_clang_resource_dir` is not guarantee to be there. Make sure of it
by including `GetClangResourceDir`.
---
 libclc/CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libclc/CMakeLists.txt b/libclc/CMakeLists.txt
index 756e097dcf123..5c4e12793329c 100644
--- a/libclc/CMakeLists.txt
+++ b/libclc/CMakeLists.txt
@@ -99,6 +99,7 @@ else()
 
   # Setup the paths where libclc runtimes should be stored. By default, in an
   # in-tree build we place the libraries in clang's resource driectory.
+  include(GetClangResourceDir)
   get_clang_resource_dir( LIBCLC_OUTPUT_DIR PREFIX ${LLVM_LIBRARY_OUTPUT_INTDIR}/.. )
 
   # Note we do not adhere to LLVM_ENABLE_PER_TARGET_RUNTIME_DIR.