cmake_minimum_required(VERSION 3.25)
project(top3d)
option(PROJECT_WITH_SIMD "Enable SIMD" ON)

set(CMAKE_CXX_STANDARD 17)

list(PREPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake ${CMAKE_CURRENT_SOURCE_DIR}/cmake/find)

add_executable(${PROJECT_NAME} main.cpp)
File(GLOB CPP_FILES
        src/*.cpp
        )
add_library(${PROJECT_NAME}_lib ${CPP_FILES})
target_link_libraries(${PROJECT_NAME} PUBLIC ${PROJECT_NAME}_lib)
## SIMD support
if (PROJECT_WITH_SIMD)
    # Figure out SSE level support
    message(STATUS "Seaching for SSE...")
    find_package(SSE)
    # Apple broke AVX instructions with clang:
    # https://gitlab.com/libeigen/eigen/-/commit/71aa53dd6dfdc497324d9e87f59c4ba820191856
    if (NOT APPLE)
        # Figure out AVX level support
        message(STATUS "Searching for AVX...")
        find_package(AVX)
        # Figure out FMA level support
        message(STATUS "Searching for FMA...")
        find_package(FMA)
    else ()
        message(WARNING "Disabling AVX support: clang compiler shipped with XCode 11.[012] generates broken assembly with -macosx-version-min=10.15 and AVX enabled.")
    endif ()
    # Add SSE, AVX, and FMA flags to compiler flags
    string(REPLACE " " ";" SIMD_FLAGS "${SSE_FLAGS} ${AVX_FLAGS} ${FMA_FLAGS}")
    target_compile_options(${PROJECT_NAME} PUBLIC ${SIMD_FLAGS})
endif ()

# Eigen3
include(eigen)
target_link_libraries(${PROJECT_NAME}_lib PUBLIC Eigen3::Eigen)