[Bf-blender-cvs] [743b9c5e1d9] master: CMake: fix build issue with gcc+clang-tidy
Ray Molenkamp
noreply at git.blender.org
Thu Jan 13 17:47:20 CET 2022
Commit: 743b9c5e1d9e9d23b8f51fd6778db8292de204ae
Author: Ray Molenkamp
Date: Thu Jan 13 09:47:14 2022 -0700
Branches: master
https://developer.blender.org/rB743b9c5e1d9e9d23b8f51fd6778db8292de204ae
CMake: fix build issue with gcc+clang-tidy
Precompiled headers are in a compiler specific format,
when using clang-tidy it tries to read the GCC PCH file
and fails at that.
Disable PCH's for now when WITH_CLANG_TIDY is enabled since
a clean work-around doesn't seem readily available.
relevant LLVM/CMake bugs:
https://bugs.llvm.org/show_bug.cgi?id=41579
https://gitlab.kitware.com/cmake/cmake/-/issues/22081
Differential Revision: https://developer.blender.org/D13814
Reviewed by: sergey, Blendify
===================================================================
M source/CMakeLists.txt
===================================================================
diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index 0ce2341fc2e..6c2cbb5df33 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -25,6 +25,10 @@ endif()
if(WITH_CLANG_TIDY AND NOT MSVC)
if(NOT CMAKE_C_COMPILER_ID MATCHES "Clang")
message(WARNING "Currently Clang-Tidy might fail with GCC toolchain, switch to Clang toolchain if that happens")
+ if(COMMAND target_precompile_headers)
+ message(STATUS "Clang-Tidy and GCC precompiled headers are incompatible, disabling precompiled headers")
+ set(CMAKE_DISABLE_PRECOMPILE_HEADERS On)
+ endif()
endif()
find_package(ClangTidy REQUIRED)
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