141 lines
4.6 KiB
CMake
141 lines
4.6 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(FORCE_LOCAL_LIBS "Compile the built-in version of FLTK instead of using the system-provided one" OFF)
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project(DoConfig LANGUAGES CXX)
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message(STATUS "Compiler ID : ${CMAKE_CXX_COMPILER_ID}")
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# Has to be placed after "project()"
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if (CMAKE_CXX_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_CXX_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_CXX_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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add_executable(DoConfig "DoConfig.cpp" "icon.rc")
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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(CSE2 PRIVATE /W4)
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# endif()
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target_compile_options(DoConfig PRIVATE /W4)
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elseif(COMPILER_IS_GCC_COMPATIBLE)
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target_compile_options(DoConfig 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 (ALL_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 /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(CSE2 PRIVATE /Wall)
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# endif()
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target_compile_options(DoConfig PRIVATE /Wall)
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elseif(COMPILER_IS_CLANG)
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target_compile_options(DoConfig 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 (FATAL_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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target_compile_options(DoConfig PRIVATE /WX)
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elseif(COMPILER_IS_GCC_COMPATIBLE)
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target_compile_options(DoConfig 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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# Windows tweak
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if(WIN32)
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set_target_properties(DoConfig PROPERTIES WIN32_EXECUTABLE YES) # Disable the console window
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endif()
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# MSVC tweak
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if(MSVC)
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target_compile_definitions(DoConfig 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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# Find FLTK
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if(NOT FORCE_LOCAL_LIBS)
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set(FLTK_SKIP_FLUID ON) # Do not require fltk-fluid (the UI designer)
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find_package(FLTK)
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endif()
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if(FLTK_FOUND)
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message(STATUS "Using system FLTK")
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target_include_directories(DoConfig PRIVATE ${FLTK_INCLUDE_DIR})
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target_link_libraries(DoConfig ${FLTK_LIBRARIES})
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else()
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# Compile it ourselves
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message(STATUS "Using local FLTK")
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# Clear this or it will cause an error during FLTK's configuration.
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# FLTK only appends to it, so the leftover junk gets fed into a bunch
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# of important functions. THAT was no fun to debug.
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set(FLTK_LIBRARIES)
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set(OPTION_BUILD_EXAMPLES OFF) # Needed to prevent a name collision
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if(FORCE_LOCAL_LIBS)
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set(OPTION_USE_SYSTEM_ZLIB OFF)
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set(OPTION_USE_SYSTEM_LIBJPEG OFF)
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set(OPTION_USE_SYSTEM_LIBPNG OFF)
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endif()
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add_subdirectory("fltk" EXCLUDE_FROM_ALL)
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get_target_property(DIRS fltk INCLUDE_DIRECTORIES) # FLTK doesn't mark its includes as PUBLIC or INTERFACE, so we have to do this stupidity
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target_include_directories(DoConfig PRIVATE ${DIRS})
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target_link_libraries(DoConfig fltk)
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endif()
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# Enable link-time optimisation if available
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if(NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
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if((${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(DoConfig PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
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endif()
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endif()
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endif()
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