5b996b3459
Today I learned that CMake will error if the project shares a dependency with a nested CMake file (which could be from an entirely-separate project that you have no control over). I'm starting to really hate CMake.
117 lines
3.6 KiB
CMake
117 lines
3.6 KiB
CMake
cmake_minimum_required(VERSION 3.12)
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option(PKG_CONFIG_STATIC_LIBS "On platforms with pkg-config, static-link the dependencies (good for Windows builds, so you don't need to bundle DLL files)" OFF)
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option(MSVC_LINK_STATIC_RUNTIME "Link the static MSVC runtime library (Visual Studio only)" OFF)
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option(FORCE_LOCAL_LIBS "Compile the built-in version of GLFW3 instead of using the system-provided one" OFF)
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project(DoConfig LANGUAGES C CXX)
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add_executable(DoConfig WIN32
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"icon.rc"
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"DoConfig.cpp"
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"imgui/imconfig.h"
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"imgui/imgui.cpp"
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"imgui/imgui.h"
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"imgui/imgui_demo.cpp"
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"imgui/imgui_draw.cpp"
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"imgui/imgui_impl_glfw.cpp"
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"imgui/imgui_impl_glfw.h"
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"imgui/imgui_impl_opengl3.cpp"
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"imgui/imgui_impl_opengl3.h"
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"imgui/imgui_internal.h"
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"imgui/imgui_widgets.cpp"
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"imgui/imstb_rectpack.h"
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"imgui/imstb_textedit.h"
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"imgui/imstb_truetype.h"
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)
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set_target_properties(DoConfig 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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CXX_STANDARD 98
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CXX_STANDARD_REQUIRED ON
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CXX_EXTENSIONS OFF
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)
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target_link_libraries(DoConfig PRIVATE ${CMAKE_DL_LIBS})
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target_include_directories(DoConfig PRIVATE "../external/glad/include")
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target_compile_definitions(DoConfig PRIVATE IMGUI_IMPL_OPENGL_LOADER_GLAD)
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if(PKG_CONFIG_STATIC_LIBS)
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target_link_options(DoConfig PRIVATE "-static")
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endif()
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if(MSVC)
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# Disable warnings that normally fire up on MSVC when using "unsafe" functions instead of using MSVC's "safe" _s functions
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target_compile_definitions(DoConfig PRIVATE _CRT_SECURE_NO_WARNINGS)
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# Use `main` instead of `WinMain`
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set_target_properties(DoConfig PROPERTIES LINK_FLAGS "/ENTRY:mainCRTStartup")
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# This is messy as hell, and has been replaced by CMAKE_MSVC_RUNTIME_LIBRARY,
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# but that's a very recent CMake addition, so we're still doing it this way for now
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if(MSVC_LINK_STATIC_RUNTIME)
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# Statically-link the CRT (vcpkg static libs do this)
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foreach(flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
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if(${flag_var} MATCHES "/MD")
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string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
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endif()
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endforeach()
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endif()
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endif()
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################
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# Dependencies #
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################
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# glad
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if(NOT TARGET glad)
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add_subdirectory("../external/glad" "glad" EXCLUDE_FROM_ALL)
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endif()
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target_link_libraries(DoConfig PRIVATE glad)
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# GLFW3
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if(NOT FORCE_LOCAL_LIBS)
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find_package(PkgConfig QUIET)
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endif()
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if(NOT FORCE_LOCAL_LIBS)
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find_package(glfw3)
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if (PKG_CONFIG_FOUND)
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pkg_check_modules(glfw3 QUIET IMPORTED_TARGET glfw3)
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endif()
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endif()
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if(TARGET PkgConfig::glfw3)
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# pkg-config
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if (PKG_CONFIG_STATIC_LIBS)
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message(STATUS "Using system GLFW3 (pkg-config, static)")
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target_compile_options(DoConfig PRIVATE ${glfw3_STATIC_CFLAGS})
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target_link_libraries(DoConfig PRIVATE ${glfw3_STATIC_LINK_LIBRARIES})
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else()
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message(STATUS "Using system GLFW3 (pkg-config, dynamic)")
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target_compile_options(DoConfig PRIVATE ${glfw3_CFLAGS})
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target_link_libraries(DoConfig PRIVATE ${glfw3_LINK_LIBRARIES})
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endif()
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elseif(TARGET glfw)
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# CMake
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message(STATUS "Using system GLFW3 (CMake)")
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target_link_libraries(DoConfig PRIVATE glfw)
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else()
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# Compile it ourselves
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message(STATUS "Using local GLFW3")
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set(GLFW_BUILD_EXAMPLES OFF CACHE INTERNAL "" FORCE)
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set(GLFW_BUILD_TESTS OFF CACHE INTERNAL "" FORCE)
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set(GLFW_BUILD_DOCS OFF CACHE INTERNAL "" FORCE)
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set(GLFW_INSTALL OFF CACHE INTERNAL "" FORCE)
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add_subdirectory("../external/glfw" "glfw" EXCLUDE_FROM_ALL)
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target_link_libraries(DoConfig PRIVATE glfw)
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endif()
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