[llvm] [Offload] Fix missing dependencies in Offload API generation (PR #142776)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-offload

Author: Callum Fare (callumfare)

<details>
<summary>Changes</summary>

Thanks to @<!-- -->RossBrunton for spotting this.

We attempt to clang-format the generated Offload header files, but if clang-format isn't available we just copy the generated files instead. That fallback path was missing the correct dependencies.

Fixes #<!-- -->142756

---
Full diff: https://github.com/llvm/llvm-project/pull/142776.diff


1 Files Affected:

- (modified) offload/liboffload/API/CMakeLists.txt (+2) 


``````````diff
diff --git a/offload/liboffload/API/CMakeLists.txt b/offload/liboffload/API/CMakeLists.txt
index cf6e132aa57a9..216710faa84f6 100644
--- a/offload/liboffload/API/CMakeLists.txt
+++ b/offload/liboffload/API/CMakeLists.txt
@@ -42,5 +42,7 @@ else()
             COMMAND ${CMAKE_COMMAND} -E copy_if_different generated/${file}.gen ${CMAKE_CURRENT_BINARY_DIR}/${file}
             DEPENDS generated/${file}.gen
         )
+        add_custom_target(OffloadAPI.${file} DEPENDS ${file})
+        add_dependencies(OffloadAPI OffloadAPI.${file})
     endforeach()
 endif()

``````````

</details>


https://github.com/llvm/llvm-project/pull/142776