if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
    find_package(ALSA)
    if (ALSA_FOUND)
        set(PLAT_SOURCES linux_midi_alsa.c)
    else()
        set(PLAT_SOURCES unix_midi.c)
    endif()
else()
    set(PLAT_SOURCES unix_midi.c)
endif()
add_library(plat STATIC ${PLAT_SOURCES})
add_library(ui STATIC unix.c unix_sdl.c unix_cdrom.c)
target_compile_definitions(ui PUBLIC _FILE_OFFSET_BITS=64)
target_link_libraries(ui dl)

find_package(SDL2 REQUIRED)
include_directories(${SDL2_INCLUDE_DIRS})
if(MINGW)
	target_link_libraries(ui SDL2::SDL2-static)
else()
        if (TARGET SDL2::SDL2)
                target_link_libraries(ui SDL2::SDL2)
        else()
                target_link_libraries(ui ${SDL2_LIBRARIES})
        endif()
endif()
if (ALSA_FOUND)
    target_link_libraries(plat ALSA::ALSA)
endif()

if (NOT CPPTHREADS)
    target_sources(plat PRIVATE unix_thread.c)

    set(THREADS_PREFER_PTHREAD_FLAG TRUE)
    find_package(Threads REQUIRED)
    target_link_libraries(86Box Threads::Threads)
endif()