ref: 1b61aec51f5997623014ea032015cb3cdef98789
dir: /DoConfig/CMakeLists.txt/
cmake_minimum_required(VERSION 3.12)
option(LTO "Enable link-time optimisation" OFF)
option(FORCE_LOCAL_LIBS "Compile the built-in version of FLTK instead of using the system-provided one" OFF)
project(DoConfig LANGUAGES CXX)
add_executable(DoConfig WIN32 "DoConfig.cpp" "icon.rc")
# Make some tweaks if we're using MSVC
if(MSVC)
# Disable warnings that normally fire up on MSVC when using "unsafe" functions instead of using MSVC's "safe" _s functions
target_compile_definitions(DoConfig PRIVATE _CRT_SECURE_NO_WARNINGS)
# Make it so source files are recognized as UTF-8 by MSVC
target_compile_options(DoConfig PRIVATE "/utf-8")
endif()
if(LTO)
include(CheckIPOSupported)
check_ipo_supported(RESULT result)
if(result)
set_target_properties(DoConfig PROPERTIES INTERPROCEDURAL_OPTIMIZATION TRUE)
endif()
endif()
# Find FLTK
if(NOT FORCE_LOCAL_LIBS)
set(FLTK_SKIP_FLUID ON) # Do not require fltk-fluid (the UI designer)
find_package(FLTK)
endif()
if(FLTK_FOUND)
message(STATUS "Using system FLTK")
target_include_directories(DoConfig PRIVATE ${FLTK_INCLUDE_DIR})
target_link_libraries(DoConfig PRIVATE ${FLTK_LIBRARIES})
else()
# Compile it ourselves
message(STATUS "Using local FLTK")
# Clear this or it will cause an error during FLTK's configuration.
# FLTK only appends to it, so the leftover junk gets fed into a bunch
# of important functions. THAT was no fun to debug.
set(FLTK_LIBRARIES)
set(OPTION_BUILD_EXAMPLES OFF) # Needed to prevent a name collision
if(FORCE_LOCAL_LIBS)
set(OPTION_USE_SYSTEM_ZLIB OFF)
set(OPTION_USE_SYSTEM_LIBJPEG OFF)
set(OPTION_USE_SYSTEM_LIBPNG OFF)
endif()
add_subdirectory("fltk" EXCLUDE_FROM_ALL)
get_target_property(DIRS fltk INCLUDE_DIRECTORIES) # FLTK doesn't mark its includes as PUBLIC or INTERFACE, so we have to do this stupidity
target_include_directories(DoConfig PRIVATE ${DIRS})
target_link_libraries(DoConfig PRIVATE fltk)
endif()