CMakeLists.txt

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

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

if("${SKBUILD_SABI_COMPONENT}" STREQUAL "")
    python_add_library(_deflate MODULE WITH_SOABI src/_deflate.c)
else()
    python_add_library(_deflate MODULE WITH_SOABI USE_SABI 3.11 src/_deflate.c)
endif()

if(DEFINED ENV{LIBDEFLATE_PREFIX})
    message(STATUS "Finding libdeflate in $ENV{LIBDEFLATE_PREFIX}")
    target_include_directories(_deflate PUBLIC "$ENV{LIBDEFLATE_PREFIX}/include")
    target_link_directories(_deflate PUBLIC "$ENV{LIBDEFLATE_PREFIX}/lib")
    target_link_libraries(_deflate PRIVATE deflate)
else()
    message(STATUS "Building and linking bundled libdeflate")
    set(CMAKE_POSITION_INDEPENDENT_CODE ON)
    set(LIBDEFLATE_BUILD_SHARED_LIB OFF)
    add_subdirectory(libdeflate EXCLUDE_FROM_ALL)
    target_link_libraries(_deflate PRIVATE libdeflate_static)
endif()

install(TARGETS _deflate LIBRARY DESTINATION ${SKBUILD_PROJECT_NAME})