CMakeLists.txt

cmake_minimum_required(VERSION 3.20.0)

option(GLOBAL_VCPKG "Use global Vcpkg " OFF)
option(EMSCRIPTEN "Use Emscripten" OFF)

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
if (GLOBAL_VCPKG)
    set(CMAKE_TOOLCHAIN_FILE $ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake)
else()
    set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake)
endif()
if (EMSCRIPTEN)
    set(VCPKG_CHAINLOAD_TOOLCHAIN_FILE $ENV{EMSDK}/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake CACHE STRING "Emscripten toolchain file")
    set(VCPKG_TARGET_TRIPLET wasm32-emscripten)
    # This seems not working correctly (alway .js)
    set(CMAKE_EXECUTABLE_SUFFIX ".wasm")
    if (NOT DEFINED CMAKE_BUILD_TYPE)
        set(CMAKE_BUILD_TYPE debug)
    endif()
endif()

project(cpp-wasm)

find_package(SDL2 CONFIG REQUIRED)
find_package(glad CONFIG REQUIRED)
find_package(fmt CONFIG REQUIRED)

add_executable(main src/main.cpp)
target_link_libraries(main PRIVATE SDL2::SDL2)
target_link_libraries(main PRIVATE glad::glad)
target_link_libraries(main PRIVATE fmt::fmt)
if (EMSCRIPTEN)
    target_link_options(main PRIVATE "-sMAX_WEBGL_VERSION=2" "-WASM=1" "-Os" "-sEXPORTED_FUNCTIONS=_main,_sayHello" "-sMIN_SAFARI_VERSION=-1")
    add_custom_target(copy_html COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_SOURCE_DIR}/www/index.html ${CMAKE_BINARY_DIR})
    add_dependencies(main copy_html)
endif()