74 lines
2.5 KiB
CMake
74 lines
2.5 KiB
CMake
cmake_minimum_required(VERSION 3.0)
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# Config options
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option(BUILD_EXAMPLES "Build the examples." ON)
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option(BUILD_GAMES "Build the example games." ON)
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option(ENABLE_ASAN "Enable AddressSanitizer (ASAN) for debugging (degrades performance)" OFF)
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option(ENABLE_UBSAN "Enable UndefinedBehaviorSanitizer (UBSan) for debugging" OFF)
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option(ENABLE_MSAN "Enable MemorySanitizer (MSan) for debugging (not recommended for run with ASAN)" OFF)
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if(CMAKE_VERSION VERSION_LESS "3.1")
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if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
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set(CMAKE_C_FLAGS "-std=gnu99 ${CMAKE_C_FLAGS}")
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endif()
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else()
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set (CMAKE_C_STANDARD 99)
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endif()
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include(CheckCCompilerFlag)
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function(add_if_flag_works flag)
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CHECK_C_COMPILER_FLAG("${flag}" COMPILER_HAS_THOSE_TOGGLES)
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set(outcome "Failed")
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if(COMPILER_HAS_THOSE_TOGGLES)
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foreach(var ${ARGN})
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set(${var} "${flag} ${${var}}" PARENT_SCOPE)
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endforeach()
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set(outcome "works")
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endif()
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message(STATUS "Testing if ${flag} can be used -- ${outcome}")
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endfunction()
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add_if_flag_works(-Werror=pointer-arith CMAKE_C_FLAGS)
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add_if_flag_works(-Werror=implicit-function-declaration CMAKE_C_FLAGS)
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# src/external/jar_xm.h does shady stuff
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add_if_flag_works(-fno-strict-aliasing CMAKE_C_FLAGS)
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message(STATUS "Testing if file system supports symlinks")
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execute_process(
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COMMAND ${CMAKE_COMMAND} -E create_symlink CMakeLists.txt "${CMAKE_CURRENT_BINARY_DIR}/TestingIfSymlinkWorks"
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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RESULT_VARIABLE FILESYSTEM_LACKS_SYMLINKS
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)
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If (FILESYSTEM_LACKS_SYMLINKS)
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message(STATUS "Testing if file system supports symlinks -- unsupported")
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else()
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message(STATUS "Testing if file system supports symlinks -- supported")
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endif()
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if (ENABLE_ASAN)
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add_if_flag_works(-fno-omit-frame-pointer CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
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add_if_flag_works(-fsanitize=address CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
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endif()
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if (ENABLE_UBSAN)
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add_if_flag_works(-fno-omit-frame-pointer CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
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add_if_flag_works(-fsanitize=undefined CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
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endif()
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if (ENABLE_MSAN)
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add_if_flag_works(-fno-omit-frame-pointer CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
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add_if_flag_works(-fsanitize=memory CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
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endif()
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if (ENABLE_MSAN AND ENABLE_ASAN)
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MESSAGE(WARNING "Compiling with both AddressSanitizer and MemorySanitizer is not recommended")
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endif()
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add_subdirectory(src release)
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if (${BUILD_EXAMPLES})
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add_subdirectory(examples)
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endif()
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if (${BUILD_GAMES})
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add_subdirectory(games)
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endif()
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