CMakeLists.txt

cmake_minimum_required(VERSION 3.26...3.29)
project(${SKBUILD_PROJECT_NAME} LANGUAGES C VERSION ${SKBUILD_PROJECT_VERSION})

# Ensure that option() calls in subdirectories respect normal variables
# set in this parent scope (e.g., disabling features in libdeflate).
# Without this, CMake would ignore values set via set(...) and always use
# the default provided in option(), which can lead to unexpected behavior.
set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)

option(WITH_SYSTEM_DEFLATE "Use system provided deflate library" OFF)

find_package(
  Python
  REQUIRED
  COMPONENTS
  Interpreter
  Development.Module
  ${SKBUILD_SABI_COMPONENT}
  NumPy
  )

python_add_library(cutils MODULE WITH_SOABI USE_SABI 3.10 src/asammdf/blocks/cutils.c)

if (WITH_SYSTEM_DEFLATE)
  find_package(libdeflate REQUIRED)
  target_link_libraries(cutils PRIVATE Python::NumPy libdeflate::libdeflate_shared)
else()
  # Add submodule libdeflate
  set(CMAKE_POSITION_INDEPENDENT_CODE ON)
  set(LIBDEFLATE_COMPRESSION_SUPPORT OFF)
  set(LIBDEFLATE_GZIP_SUPPORT OFF)
  set(LIBDEFLATE_BUILD_GZIP OFF)
  add_subdirectory(ext/libdeflate EXCLUDE_FROM_ALL)
  target_link_libraries(cutils PRIVATE Python::NumPy libdeflate::libdeflate_static)
endif()


install(TARGETS cutils DESTINATION "asammdf/blocks")