153 lines
5 KiB
CMake
153 lines
5 KiB
CMake
cmake_minimum_required(VERSION 3.7.2)
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if((${CMAKE_VERSION} VERSION_EQUAL 3.9) OR (${CMAKE_VERSION} VERSION_GREATER 3.9))
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cmake_policy(SET CMP0069 NEW)
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endif()
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option(LTO "Enable link-time optimisation" OFF)
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option(NATIVE_OPTIMIZATIONS "Enable processor-specific optimisations (executable might not work on other architectures) (GCC-compatible compilers only)" OFF)
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option(WARNINGS "Enable common compiler warnings (for GCC-compatible compilers and MSVC only)" OFF)
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option(WARNINGS_ALL "Enable ALL compiler warnings (for Clang and MSVC only)" OFF)
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option(WARNINGS_FATAL "Stop compilation on any compiler warning (for GCC-compatible compilers and MSVC only)" OFF)
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project(bin2h LANGUAGES C)
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add_executable(bin2h "bin2h.c")
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set_target_properties(bin2h PROPERTIES
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C_STANDARD 90
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C_STANDARD_REQUIRED ON
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C_EXTENSIONS OFF
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)
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message(STATUS "Compiler ID : ${CMAKE_C_COMPILER_ID}")
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# Has to be placed after "project()"
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if (CMAKE_C_COMPILER_ID MATCHES "Clang")
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# Using Clang (this is a match so that we also get "AppleClang" which is the Apple-provided Clang
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set(COMPILER_IS_CLANG true)
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message(STATUS "Compiling with Clang")
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endif()
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if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
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# Using GCC
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set(COMPILER_IS_GCC true)
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message(STATUS "Compiling with GCC")
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endif()
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if (CMAKE_C_COMPILER_ID STREQUAL "Intel")
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# Using Intel C++
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set(COMPILER_IS_ICC true)
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message(STATUS "Compiling with ICC")
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endif()
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if (COMPILER_IS_CLANG OR COMPILER_IS_GCC OR COMPILER_IS_ICC)
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set(COMPILER_IS_GCC_COMPATIBLE true)
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message(STATUS "Compiling with a GCC-compatible compiler")
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endif()
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if (WARNINGS)
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# HACK : Replace this with CMake provided stuff when possible (when CMake makes avoiding this possible (it isn't currently))
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if (MSVC)
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# Force to always compile with /W4 on MSVC
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# Can't do this with target_compile_options
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# if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
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# string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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# else()
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# target_compile_options(bin2h PRIVATE /W4)
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# endif()
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target_compile_options(bin2h PRIVATE /W4)
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elseif(COMPILER_IS_GCC_COMPATIBLE)
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target_compile_options(bin2h PRIVATE -Wall -Wextra -pedantic)
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else()
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message(WARNING "Could not activate warnings ! (Unsupported compiler)")
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endif()
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endif()
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if (WARNINGS_ALL)
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# HACK : Replace this with CMake provided stuff when possible (when CMake makes avoiding this possible (it isn't currently))
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if (MSVC)
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# Force to always compile with /Wall on MSVC
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# Can't do this with target_compile_options
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# if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
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# string(REGEX REPLACE "/W[0-4]" "/Wall" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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# else()
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# target_compile_options(bin2h PRIVATE /Wall)
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# endif()
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target_compile_options(bin2h PRIVATE /Wall)
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elseif(COMPILER_IS_CLANG)
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target_compile_options(bin2h PRIVATE -Weverything)
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else()
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message(WARNING "Could not activate all warnings ! (Unsupported compiler)")
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endif()
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endif()
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if (WARNINGS_FATAL)
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# HACK : Replace this with CMake provided stuff when possible (when CMake makes avoiding this possible (it isn't currently))
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if (MSVC)
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target_compile_options(bin2h PRIVATE /WX)
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elseif(COMPILER_IS_GCC_COMPATIBLE)
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target_compile_options(bin2h PRIVATE -Werror)
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else()
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message(WARNING "Could not activate fatal warnings ! (Unsupported compiler)")
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endif()
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endif()
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# MSVC tweak
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if(MSVC)
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target_compile_definitions(bin2h PRIVATE _CRT_SECURE_NO_WARNINGS) # Disable warnings that normally fire up on MSVC when using "unsafe" functions instead of using MSVC's "safe" _s functions
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endif()
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# Make it so source files are recognized as UTF-8 by MSVC
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add_compile_options("$<$<C_COMPILER_ID:MSVC>:/utf-8>")
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# Enable link-time optimisation if available
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if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
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if((${CMAKE_VERSION} VERSION_EQUAL 3.9) OR (${CMAKE_VERSION} VERSION_GREATER 3.9))
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include(CheckIPOSupported)
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check_ipo_supported(RESULT result)
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if(result)
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set_target_properties(bin2h PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
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endif()
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endif()
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endif()
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# Enable link-time optimisation if available
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if(LTO)
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if((${CMAKE_VERSION} VERSION_EQUAL 3.9) OR (${CMAKE_VERSION} VERSION_GREATER 3.9))
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include(CheckIPOSupported)
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check_ipo_supported(RESULT result)
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if(result)
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set_target_properties(bin2h PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
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endif()
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endif()
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endif()
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# Enable -march=native if available
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if(NATIVE_OPTIMIZATIONS)
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include(CheckCXXCompilerFlag)
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CHECK_CXX_COMPILER_FLAG("-march=native" COMPILER_SUPPORTS_MARCH_NATIVE) # GCC flag
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if(COMPILER_SUPPORTS_MARCH_NATIVE)
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target_compile_options(bin2h PRIVATE -march=native)
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else()
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CHECK_CXX_COMPILER_FLAG("-xHost" COMPILER_SUPPORTS_XHOST) # ICC (Linux) flag
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CHECK_CXX_COMPILER_FLAG("/QxHost" COMPILER_SUPPORTS_QXHOST) # ICC (Windows) flag
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if(COMPILER_SUPPORTS_XHOST)
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target_compile_options(bin2h PRIVATE -xHost)
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elseif(COMPILER_SUPPORTS_QXHOST)
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target_compile_options(bin2h PRIVATE /QxHost)
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else()
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message(WARNING "Couldn't activate native optimizations ! (Unsupported compiler)")
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endif()
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endif()
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endif()
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install(TARGETS bin2h RUNTIME DESTINATION bin)
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