From dc74c69f016fa65949bf0cf691061e12bef93d29 Mon Sep 17 00:00:00 2001
From: Fraser Cormack <fraser@codeplay.com>
Date: Tue, 16 Apr 2024 16:53:18 +0100
Subject: [PATCH] [libclc] Provide a more helpful error when tools are missing

---
 libclc/CMakeLists.txt | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/libclc/CMakeLists.txt b/libclc/CMakeLists.txt
index b0c29ed77270..5ce179524308 100644
--- a/libclc/CMakeLists.txt
+++ b/libclc/CMakeLists.txt
@@ -94,10 +94,11 @@ if( EXISTS ${LIBCLC_CUSTOM_LLVM_TOOLS_BINARY_DIR} )
   endforeach()
 endif()
 
-if( NOT TARGET libclc::clang OR NOT TARGET libclc::opt
-    OR NOT TARGET libclc::llvm-as OR NOT TARGET libclc::llvm-link )
-  message( FATAL_ERROR "libclc toolchain incomplete!" )
-endif()
+foreach( tool IN ITEMS clang opt llvm-as llvm-link )
+  if( NOT TARGET libclc::${tool} )
+    message( FATAL_ERROR "libclc toolchain incomplete - missing tool ${tool}!" )
+  endif()
+endforeach()
 
 # llvm-spirv is an optional dependency, used to build spirv-* targets.
 find_program( LLVM_SPIRV llvm-spirv PATHS ${LLVM_TOOLS_BINARY_DIR} NO_DEFAULT_PATH )