CMakeLists.txt

cmake_minimum_required(VERSION 3.15...3.26)

# https://scikit-build-core.readthedocs.io/en/latest/cmakelists.html#accessing-information
project(
  ${SKBUILD_PROJECT_NAME}
  VERSION ${SKBUILD_PROJECT_VERSION}
  LANGUAGES CXX)

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
set(CMAKE_CXX_STANDARD 17)

# set(CMAKE_BUILD_TYPE "Debug")
if(NOT CMAKE_BUILD_TYPE OR CMAKE_BUILD_TYPE STREQUAL "")
  set(CMAKE_BUILD_TYPE
      "Release"
      CACHE STRING "" FORCE)
  message(STATUS "Set build type to default: ${CMAKE_BUILD_TYPE}")
else()
  message(STATUS "Your build type: ${CMAKE_BUILD_TYPE}")
endif()
if(CMAKE_BUILD_TYPE STREQUAL "Debug")
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O0 -ggdb")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O0 -ggdb")
elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
endif()

# TODO, use set(PYBIND11_NEWPYTHON ON)?
# https://scikit-build-core.readthedocs.io/en/latest/getting_started.html
find_package(Python REQUIRED COMPONENTS Interpreter Development.Module)
find_package(pybind11 CONFIG REQUIRED)

python_add_library(_core MODULE src/main.cpp src/pixelmatch/pixelmatch.cc
                   WITH_SOABI)
target_link_libraries(_core PRIVATE pybind11::headers)
target_include_directories(_core PRIVATE src)
target_compile_definitions(_core PRIVATE VERSION_INFO=${PROJECT_VERSION})

install(TARGETS _core DESTINATION pybind11_pixelmatch)