CMakeLists.txt

cmake_minimum_required(VERSION 3.23)
project(FluidSim)

set(CMAKE_CXX_FLAGS_RELEASE  "-O3")

if(UNIX)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 ")
endif(UNIX)

if (WIN32)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -lmingw32")
endif(WIN32)

set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc -static-libstdc++")

add_compile_definitions(STB_IMAGE_IMPLEMENTATION)


#           DOWNLOAD ALL THE SUBMODULES
find_package(Git QUIET)
if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
    # Update submodules as needed
    option(GIT_SUBMODULE "Check submodules during build" ON)
    if(GIT_SUBMODULE)
        message(STATUS "Submodule update")
        execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
                WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                RESULT_VARIABLE GIT_SUBMOD_RESULT)
        if(NOT GIT_SUBMOD_RESULT EQUAL "0")
            message(FATAL_ERROR "git submodule update --init failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
        endif()
    endif()
endif()

#           CHECK ALL THE SUBMODULES
if(NOT EXISTS "${PROJECT_SOURCE_DIR}/external/glfw/CMakeLists.txt")
    message(FATAL_ERROR "The glfw submodules was not downloaded! GIT_SUBMODULE was turned off or failed. Please update submodules and try again.")
endif()


add_subdirectory(external/glfw)
add_subdirectory("include")
add_subdirectory("src")