From 351e643eca11153c4e36e941b37884845caa73b4 Mon Sep 17 00:00:00 2001
From: ferdymercury <ferdymercury@users.noreply.github.com>
Date: Wed, 16 Sep 2026 08:16:34 +0200
Subject: [PATCH] [interpreter] fix CLANG_CMAKE_DIR with builtin_llvm=OFF

but builtin_clang=ON. Otherwise Clad raises a configure error.
---
 interpreter/CMakeLists.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/interpreter/CMakeLists.txt b/interpreter/CMakeLists.txt
index 77d5d7f01355d..3db4be3157ad9 100644
--- a/interpreter/CMakeLists.txt
+++ b/interpreter/CMakeLists.txt
@@ -417,7 +417,11 @@ if (builtin_clang)
     ${CMAKE_CURRENT_SOURCE_DIR}/llvm-project/clang/include
     ${CLANG_BINARY_DIR}/include
     CACHE STRING "Clang include directories.")
-  set(CLANG_CMAKE_DIR "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/cmake/clang/")
+  if(builtin_llvm)
+    set(CLANG_CMAKE_DIR "${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}/cmake/clang/")
+  else()
+    set(CLANG_CMAKE_DIR "${CMAKE_BINARY_DIR}/lib/cmake/clang/")
+  endif()
 else()
   find_package(Clang REQUIRED CONFIG)
   message(STATUS "Found Clang ${CLANG_PACKAGE_VERSION} in ${CLANG_CMAKE_DIR}")