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[cmake] Configure policy CMP0116 (#2879) 

CMake 3.20 will result in many warnings on this policy.
  This commit silence it with the use of 'old' behaviour.
  And CMake 3.23 does warn it and simple use 'old' behaviour.
  Probably we can remove this when minimal cmake version up to 3.23.
This commit is contained in:
huanghuang 2022-04-13 09:20:37 +08:00 committed by GitHub
parent cb5d02799c
commit b237718c73
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1 changed files with 14 additions and 8 deletions
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22
CMakeLists.txt
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@ -19,6 +19,12 @@ if(POLICY CMP0077)
cmake_policy(SET CMP0077 NEW)
endif()
# 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()
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED YES)
@ -38,11 +44,11 @@ if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )
# Project setup and globals
#-------------------------------------------------------------------------------
project(circt LANGUAGES CXX C)
#-------------------------------------------------------------------------------
# Options and settings
#-------------------------------------------------------------------------------
option(LLVM_INCLUDE_TOOLS "Generate build targets for the LLVM tools." ON)
option(LLVM_BUILD_TOOLS "Build the LLVM tools. If OFF, just generate build targets." ON)
@ -51,22 +57,22 @@ if (MSVC)
else ()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions -fno-rtti")
endif ()
#-------------------------------------------------------------------------------
# MLIR/LLVM Configuration
#-------------------------------------------------------------------------------
find_package(MLIR REQUIRED CONFIG)
message(STATUS "Using MLIRConfig.cmake in: ${MLIR_DIR}")
message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")
set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/bin)
set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/lib)
list(APPEND CMAKE_MODULE_PATH "${MLIR_CMAKE_DIR}")
list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_DIR}")
include(TableGen)
include(AddLLVM)
include(AddMLIR)