project(matvg)
cmake_minimum_required(VERSION 2.8)

message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
message(STATUS "Build target: ${CMAKE_SYSTEM_NAME}")

if(WIN32)
    message(FATAL_ERROR "${CMAKE_SYSTEM_NAME} isn't supported")
elseif(APPLE)
    message(FATAL_ERROR "${CMAKE_SYSTEM_NAME} isn't supported")
elseif(UNIX)
    if(CMAKE_BUILD_TYPE STREQUAL "Debug")
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -g -std=c++11")
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -g -std=c++11")
    elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -O3 -std=c++11")
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -O3 -std=c++11")
    else()
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -std=c++11")
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -std=c++11")
    endif()

    message(STATUS "Flags for CXX: ${CMAKE_CXX_FLAGS}")
    message(STATUS "Flags for C: ${CMAKE_C_FLAGS}")

    set(DIR ${CMAKE_CURRENT_SOURCE_DIR}/sdl_gl)

    # SDL2
    include(FindPkgConfig)
    pkg_search_module(SDL2 REQUIRED sdl2)

    find_package(OpenGL REQUIRED)
    find_package(GLUT REQUIRED)

    include_directories(${DIR}/include
        ${SDL2_DIRECTORIES}
        ${OPENGL_INCLUDE_DIR}
        ${GLUT_INCLUDE_DIR})

    set(SRCS
        ${DIR}/src/display.cpp)

    add_library(${PROJECT_NAME} SHARED
        ${SRCS})

    target_link_libraries(${PROJECT_NAME}
        ${SDL2_LIBRARIES}
        ${OPENGL_LIBRARIES}
        ${GLUT_LIBRARIES})

    install(TARGETS ${CMAKE_BINARY_DIR}/libmatvg.so
        LIBRARY DESTINATION /usr/lib/x86_64-linux-gnu)
else()
    message(FATAL_ERROR "${CMAKE_SYSTEM_NAME} isn't supported")
endif()