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Add a "IGNORE_MINIMAL_COMPILER_VERSION" option to the CMakeLists.txt file 

Signed-off-by: Username404 <w.iron.zombie@gmail.com>
This commit is contained in:
Username404 2022-04-14 16:33:42 +02:00
parent 27c8b642d6
commit b96b487882
Signed by: Username404-59
GPG Key ID: 7AB361FBB257A5D1
1 changed files with 4 additions and 3 deletions
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7
CMakeLists.txt
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@ -33,6 +33,7 @@ set(CMAKE_CXX_FLAGS_RELEASE "-Os")
set(MINIMAL_GNU "11.0")
set(MINIMAL_CLANG "14.0.1")
set(MINIMAL_MSVC "19.30")
option(IGNORE_MINIMAL_COMPILER_VERSION "Whether or not to ignore the minimal compiler versions")
set(IS_GNU (${CMAKE_CXX_COMPILER_ID} STREQUAL GNU))
set(IS_CLANG (${CMAKE_CXX_COMPILER_ID} STREQUAL Clang))
@ -78,7 +79,7 @@ include(CheckIPOSupported)
check_ipo_supported(RESULT CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE LANGUAGES CXX)
if (${IS_GNU})
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${MINIMAL_GNU})
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${MINIMAL_GNU} AND NOT ${IGNORE_MINIMAL_COMPILER_VERSION})
message(FATAL_ERROR "G++ ${MINIMAL_GNU} or higher is required.")
endif()
if (Threads_FOUND)
@ -89,7 +90,7 @@ if (${IS_GNU})
set(CMAKE_CXX_FLAGS_RELEASE "-fwhole-program ${CMAKE_CXX_FLAGS_RELEASE}")
endif()
elseif(${IS_CLANG})
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${MINIMAL_CLANG})
if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${MINIMAL_CLANG} AND NOT ${IGNORE_MINIMAL_COMPILER_VERSION})
message(FATAL_ERROR "Clang ${MINIMAL_CLANG} or higher is required.")
endif()
if (${CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE} OR MINGW) # CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE is false on llvm-mingw toolchains even though it is supported
@ -100,7 +101,7 @@ elseif(${IS_CLANG})
endif()
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fstrict-vtable-pointers")
elseif(MSVC)
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${MINIMAL_MSVC})
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${MINIMAL_MSVC} AND NOT ${IGNORE_MINIMAL_COMPILER_VERSION})
message(FATAL_ERROR "MSVC ${MINIMAL_MSVC} or higher is required")
endif()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR /W3 /Zc:__cplusplus /Zc:preprocessor /Zc:throwingNew /Zc:inline")