[Lldb-commits] [PATCH] D112497: [lldb] Configure CMake policy CMP0116 for standalone builds

[Dave Lee via Phabricator via lldb-commits]

kastiglione created this revision.
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Using CMake >=3.20 results in many warnings about this new policy. This change silences the warnings by explicitly declaring use of the "OLD" behavior.

This applies D101083 <https://reviews.llvm.org/D101083> to LLDBStandalone.cmake.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D112497

Files:
  lldb/cmake/modules/LLDBStandalone.cmake


Index: lldb/cmake/modules/LLDBStandalone.cmake
===================================================================
--- lldb/cmake/modules/LLDBStandalone.cmake
+++ lldb/cmake/modules/LLDBStandalone.cmake
@@ -1,3 +1,9 @@
+# CMP0116: Ninja generators transform `DEPFILE`s from `add_custom_command()`
+# New in CMake 3.20. https://cmake.org/cmake/help/latest/policy/CMP0116.html
+if(POLICY CMP0116)
+  cmake_policy(SET CMP0116 OLD)
+endif()
+
 option(LLVM_INSTALL_TOOLCHAIN_ONLY "Only include toolchain files in the 'install' target." OFF)
 
 find_package(LLVM REQUIRED CONFIG HINTS ${LLVM_DIR} NO_CMAKE_FIND_ROOT_PATH)


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