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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 3.15...3.22)
project(nanobind)
# ---------------------------------------------------------------------------
# Only build tests by default if this is the top-level CMake project
# ---------------------------------------------------------------------------
if (CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
set(NB_TEST_DEFAULT ON)
else()
set(NB_TEST_DEFAULT OFF)
endif()
option(NB_TEST "Compile nanobind tests?" ${NB_TEST_DEFAULT})
option(NB_TEST_STABLE_ABI "Test the stable ABI interface?" OFF)
option(NB_TEST_STATIC_BUILD "Build the nanobind library statically for the test suite?" OFF)
# ---------------------------------------------------------------------------
# Do a release build if nothing was specified
# ---------------------------------------------------------------------------
if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
message(STATUS "nanobind: setting build type to 'Release' as none was specified.")
set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release"
"MinSizeRel" "RelWithDebInfo")
endif()
# ---------------------------------------------------------------------------
# Check whether all dependencies are present
# ---------------------------------------------------------------------------
if (NOT IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/ext/robin_map/include")
message(FATAL_ERROR "The nanobind dependencies are missing! "
"You probably did not clone the project with --recursive. It is possible to recover "
"by invoking\n$ git submodule update --init --recursive")
endif()
# ---------------------------------------------------------------------------
# Compile with a few more compiler warnings turned on
# ---------------------------------------------------------------------------
if (MSVC)
if (CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
else()
add_compile_options(/W4)
endif()
elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang|GNU")
add_compile_options(-Wall -Wextra -Wno-unused-local-typedefs)
endif()
# ---------------------------------------------------------------------------
# Find the Python interpreter and development libraries
# ---------------------------------------------------------------------------
if (NOT TARGET Python::Module OR NOT TARGET Python::Interpreter)
set(Python_FIND_FRAMEWORK LAST) # Prefer Brew/Conda to Apple framework python
find_package(Python 3.8 COMPONENTS Interpreter Development REQUIRED)
endif()
# ---------------------------------------------------------------------------
# Include nanobind cmake functionality
# ---------------------------------------------------------------------------
find_package(nanobind
PATHS ${CMAKE_CURRENT_SOURCE_DIR}/cmake
NO_DEFAULT_PATH)
if (NB_TEST)
add_subdirectory(tests)
endif()