cmake_minimum_required(VERSION 3.16) project(ZXing) option (ZXING_READERS "Build with reader support (decoders)" ON) set (ZXING_WRITERS "ON" CACHE STRING "Build with old and/or new writer (encoder) backend (OFF/ON/OLD/NEW/BOTH)") option (ZXING_USE_BUNDLED_ZINT "Use the bundled libzint for barcode creation/writing" ON) option (ZXING_C_API "Build the C-API" OFF) option (ZXING_EXPERIMENTAL_API "Build with experimental API" OFF) option (ZXING_EXAMPLES "Build the example barcode reader/writer applications" ON) option (ZXING_BLACKBOX_TESTS "Build the black box reader/writer tests" OFF) option (ZXING_UNIT_TESTS "Build the unit tests (don't enable for production builds)" OFF) option (ZXING_PYTHON_MODULE "Build the python module" OFF) set (ZXING_DEPENDENCIES "AUTO" CACHE STRING "Fetch from github or use locally installed (AUTO/GITHUB/LOCAL)") if (WIN32) option (BUILD_SHARED_LIBS "Build and link as shared library" OFF) else() option (BUILD_SHARED_LIBS "Build and link as shared library" ON) endif() if (MSVC) add_definitions (-DUNICODE -D_UNICODE -D_CRT_SECURE_NO_WARNINGS) option (ZXING_LINK_CPP_STATICALLY "MSVC only, link standard library statically (/MT and /MTd)" OFF) if (LINK_CPP_STATICALLY OR ZXING_LINK_CPP_STATICALLY) set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>") endif() endif() if (NOT CMAKE_BUILD_TYPE) set (DEFAULT_BUILD_TYPE "Release") message (STATUS "Setting build type to '${DEFAULT_BUILD_TYPE}' as none was specified.") set (CMAKE_BUILD_TYPE "${DEFAULT_BUILD_TYPE}" CACHE STRING "Choose the type of build." FORCE) set_property (CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo") endif() # provide backward compatibility for deprecated BUILD_... options if (DEFINED BUILD_READERS) set (ZXING_READERS ${BUILD_READERS}) endif() if (DEFINED BUILD_WRITERS) set (ZXING_WRITERS ${BUILD_WRITERS}) endif() if (DEFINED BUILD_EXAMPLES) message (WARNING "zxing-cpp cmake options BUILD_... are deprecated, please switch to ZXING_... variant") set (ZXING_EXAMPLES ${BUILD_EXAMPLES}) endif() if (DEFINED BUILD_PYTHON_MODULE) message (WARNING "zxing-cpp cmake options BUILD_... are deprecated, please switch to ZXING_... variant") set (ZXING_PYTHON_MODULE ${BUILD_PYTHON_MODULE}) endif() if (DEFINED BUILD_DEPENDENCIES) message (WARNING "zxing-cpp cmake options BUILD_... are deprecated, please switch to ZXING_... variant") set (ZXING_DEPENDENCIES ${BUILD_DEPENDENCIES}) endif() if (NOT (ZXING_READERS OR ZXING_WRITERS)) message(FATAL_ERROR "At least one of ZXING_READERS/ZXING_WRITERS must be enabled.") endif() set(ZXING_WRITERS_LIST OFF ON OLD NEW BOTH) set_property(CACHE ZXING_WRITERS PROPERTY STRINGS ${ZXING_WRITERS_LIST}) if(NOT ZXING_WRITERS IN_LIST ZXING_WRITERS_LIST) message(FATAL_ERROR "ZXING_WRITERS must be one of ${ZXING_WRITERS_LIST}") endif() set(ZXING_DEPENDENCIES_LIST AUTO GITHUB LOCAL) set_property(CACHE ZXING_DEPENDENCIES PROPERTY STRINGS ${ZXING_DEPENDENCIES_LIST}) if(NOT ZXING_DEPENDENCIES IN_LIST ZXING_DEPENDENCIES_LIST) message(FATAL_ERROR "ZXING_DEPENDENCIES must be one of ${ZXING_DEPENDENCIES_LIST}") endif() if (NOT DEFINED CMAKE_CXX_STANDARD) set (CMAKE_CXX_STANDARD 20) # Allow the fallback to earlier versions if the compiler does not support it. set(CMAKE_CXX_STANDARD_REQUIRED OFF) endif() if (NOT DEFINED CMAKE_CXX_EXTENSIONS) set (CMAKE_CXX_EXTENSIONS OFF) endif() add_subdirectory (core) enable_testing() include(zxing.cmake) if (ZXING_EXAMPLES) add_subdirectory (example) endif() if (ZXING_BLACKBOX_TESTS) add_subdirectory (test/blackbox) endif() if (ZXING_UNIT_TESTS) add_subdirectory (test/unit) endif() if (ZXING_PYTHON_MODULE) add_subdirectory (wrappers/python) endif() if (ZXING_C_API) add_subdirectory (wrappers/c) endif()