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Modernize CMakeLists.txt #1

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Modernize CMakeLists.txt #1

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66 changes: 36 additions & 30 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,36 +1,42 @@
CMAKE_MINIMUM_REQUIRED(VERSION 3.10.2)
PROJECT(simple_cpp_python)
cmake_minimum_required(VERSION 3.10.2)

ENABLE_LANGUAGE(CXX)
SET(CMAKE_CXX_STANDARD 17) # C++-17 required for high-level code parallelization
SET(CMAKE_CXX_STANDARD_REQUIRED ON)
# Set CMAKE_BUILD_TYPE to Release by default.
# Must be done before calling project()
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build, options are: None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel." FORCE)
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "" Release Debug RelWithDebInfo MinSizeRel)
endif()

FIND_PACKAGE(TBB REQUIRED) # TBB required by GCC's implementation of C++-17
FIND_PACKAGE(pybind11 REQUIRED)
FIND_PACKAGE(Catch2 REQUIRED)
FIND_PACKAGE(Backward)
project(simple_cpp_python
VERSION 0.1.0
DESCRIPTION "A minimal project showing how to configure and code a project mixing C++ and Python"
HOMEPAGE_URL "https://github.com/fteicht/simple-cpp-python/"
LANGUAGES CXX)

PYBIND11_ADD_MODULE(__simple_cpp_python package.cc)
TARGET_LINK_LIBRARIES(__simple_cpp_python PRIVATE ${TBB_IMPORTED_TARGETS})
find_package(TBB REQUIRED) # TBB required by GCC's implementation of C++-17
find_package(pybind11 REQUIRED)
find_package(Catch2 REQUIRED)
find_package(Backward)

IF (TARGET Backward::Backward)
SET (BACKWARD_LIBS Backward::Backward)
SET (BACKWARD_INCLUDES ${BACKWARD_INCLUDE_DIRS})
SET (BACKWARD_DEFINITIONS ${BACKWARD_DEFITIONS} -DHAVE_BACKWARD)
ELSE ()
SET (BACKWARD_LIBS "")
SET (BACKWARD_INCLUDES "")
SET (BACKWARD_DEFINITIONS "")
ENDIF ()
# C++-17 required for high-level code parallelization.
# Unfortunately pybind11 interferes with CMake; we cannot call
# target_compile_features() as is done with test-cpp-inner-loop,
# and have to set PYBIND11_CPP_STANDARD variable before calling
# pybind11_add_module. Ideally pybind11 should have an option
# to not enforce C++14.
set(PYBIND11_CPP_STANDARD --std=c++17)
pybind11_add_module(__simple_cpp_python package.cc)
target_link_libraries(__simple_cpp_python PRIVATE ${TBB_IMPORTED_TARGETS})

INCLUDE(CTest)
INCLUDE(Catch)
include(CTest)
include(Catch)

ADD_EXECUTABLE(test-cpp-inner-loop tests.cc)
TARGET_INCLUDE_DIRECTORIES(test-cpp-inner-loop PRIVATE
${PYTHON_INCLUDE_DIRS} ${BACKWARD_INCLUDES})
TARGET_LINK_LIBRARIES(test-cpp-inner-loop PRIVATE
Catch2::Catch2 ${TBB_IMPORTED_TARGETS}
${PYTHON_LIBRARIES} ${BACKWARD_LIBS})
TARGET_COMPILE_DEFINITIONS(test-cpp-inner-loop PRIVATE ${BACKWARD_DEFINITIONS})
CATCH_DISCOVER_TESTS(test-cpp-inner-loop)
add_executable(test-cpp-inner-loop tests.cc)
target_compile_features(test-cpp-inner-loop PRIVATE cxx_std_17)
target_link_libraries(test-cpp-inner-loop PRIVATE
Catch2::Catch2 pybind11::embed ${TBB_IMPORTED_TARGETS})
if (TARGET Backward::Backward)
target_compile_definitions(test-cpp-inner-loop PRIVATE HAVE_BACKWARD)
target_link_libraries(test-cpp-inner-loop PRIVATE Backward::Backward)
endif ()
catch_discover_tests(test-cpp-inner-loop)