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cmake_minimum_required(VERSION 3.0)
project(Libnest2D)
if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
# Update if necessary
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wno-long-long ")
endif()
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED)
# Add our own cmake module path.
list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake_modules/)
option(LIBNEST2D_UNITTESTS "If enabled, googletest framework will be downloaded
and the provided unit tests will be included in the build." OFF)
option(LIBNEST2D_BUILD_EXAMPLES "If enabled, examples will be built." OFF)
option(LIBNEST2D_HEADER_ONLY "If enabled static library will not be built." ON)
set(GEOMETRY_BACKENDS clipper boost eigen)
set(LIBNEST2D_GEOMETRIES clipper CACHE STRING "Geometry backend")
set_property(CACHE LIBNEST2D_GEOMETRIES PROPERTY STRINGS ${GEOMETRY_BACKENDS})
list(FIND GEOMETRY_BACKENDS ${LIBNEST2D_GEOMETRIES} GEOMETRY_TYPE)
if(${GEOMETRY_TYPE} EQUAL -1)
message(FATAL_ERROR "Option ${LIBNEST2D_GEOMETRIES} not supported, valid entries are ${GEOMETRY_BACKENDS}")
endif()
set(OPTIMIZERS nlopt optimlib)
set(LIBNEST2D_OPTIMIZER nlopt CACHE STRING "Optimization backend")
set_property(CACHE LIBNEST2D_OPTIMIZER PROPERTY STRINGS ${OPTIMIZERS})
list(FIND OPTIMIZERS ${LIBNEST2D_OPTIMIZER} OPTIMIZER_TYPE)
if(${OPTIMIZER_TYPE} EQUAL -1)
message(FATAL_ERROR "Option ${LIBNEST2D_OPTIMIZER} not supported, valid entries are ${OPTIMIZERS}")
endif()
add_library(libnest2d INTERFACE)
set(SRC_DIR ${PROJECT_SOURCE_DIR}/include)
set(LIBNEST2D_SRCFILES
${SRC_DIR}/libnest2d/libnest2d.hpp # Templates only
${SRC_DIR}/libnest2d/geometry_traits.hpp
${SRC_DIR}/libnest2d/geometry_traits_nfp.hpp
${SRC_DIR}/libnest2d/common.hpp
${SRC_DIR}/libnest2d/optimizer.hpp
${SRC_DIR}/libnest2d/utils/metaloop.hpp
${SRC_DIR}/libnest2d/utils/rotfinder.hpp
${SRC_DIR}/libnest2d/placers/placer_boilerplate.hpp
${SRC_DIR}/libnest2d/placers/bottomleftplacer.hpp
${SRC_DIR}/libnest2d/placers/nfpplacer.hpp
${SRC_DIR}/libnest2d/selections/selection_boilerplate.hpp
${SRC_DIR}/libnest2d/selections/filler.hpp
${SRC_DIR}/libnest2d/selections/firstfit.hpp
${SRC_DIR}/libnest2d/selections/djd_heuristic.hpp
)
set(TBB_STATIC ON)
find_package(TBB QUIET)
if(TBB_FOUND)
message(STATUS "Parallelization with Intel TBB")
target_include_directories(libnest2d INTERFACE ${TBB_INCLUDE_DIRS})
target_compile_definitions(libnest2d INTERFACE ${TBB_DEFINITIONS} -DUSE_TBB)
if(MSVC)
# Suppress implicit linking of the TBB libraries by the Visual Studio compiler.
target_compile_definitions(libnest2d INTERFACE -D__TBB_NO_IMPLICIT_LINKAGE)
endif()
# The Intel TBB library will use the std::exception_ptr feature of C++11.
target_compile_definitions(libnest2d INTERFACE -DTBB_USE_CAPTURED_EXCEPTION=0)
target_link_libraries(libnest2d INTERFACE tbb)
# The following breaks compilation on Visual Studio in Debug mode.
#find_package(Threads REQUIRED)
#target_link_libraries(libnest2d INTERFACE ${TBB_LIBRARIES} ${CMAKE_DL_LIBS}
# Threads::Threads
# )
else()
find_package(OpenMP QUIET)
if(OpenMP_CXX_FOUND)
message(STATUS "Parallelization with OpenMP")
target_include_directories(libnest2d INTERFACE OpenMP::OpenMP_CXX)
target_link_libraries(libnest2d INTERFACE OpenMP::OpenMP_CXX)
else()
message("Parallelization with C++11 threads")
find_package(Threads REQUIRED)
target_link_libraries(libnest2d INTERFACE Threads::Threads)
endif()
endif()
add_subdirectory(${SRC_DIR}/libnest2d/backends/${LIBNEST2D_GEOMETRIES})
add_subdirectory(${SRC_DIR}/libnest2d/optimizers/${LIBNEST2D_OPTIMIZER})
target_sources(libnest2d INTERFACE ${LIBNEST2D_SRCFILES})
target_include_directories(libnest2d INTERFACE ${SRC_DIR})
if(NOT LIBNEST2D_HEADER_ONLY)
set(LIBNAME libnest2d_${LIBNEST2D_GEOMETRIES}_${LIBNEST2D_OPTIMIZER})
add_library(${LIBNAME} ${PROJECT_SOURCE_DIR}/src/libnest2d.cpp)
target_link_libraries(${LIBNAME} PUBLIC libnest2d)
target_compile_definitions(${LIBNAME} PUBLIC LIBNEST2D_STATIC)
endif()
if(LIBNEST2D_BUILD_EXAMPLES)
add_executable(example examples/main.cpp
# tools/libnfpglue.hpp
# tools/libnfpglue.cpp
tools/nfp_svgnest.hpp
tools/nfp_svgnest_glue.hpp
tools/svgtools.hpp
tests/printer_parts.cpp
tests/printer_parts.h
)
if(NOT LIBNEST2D_HEADER_ONLY)
target_link_libraries(example ${LIBNAME})
else()
target_link_libraries(example libnest2d)
endif()
endif()
if(LIBNEST2D_UNITTESTS)
add_subdirectory(${PROJECT_SOURCE_DIR}/tests)
endif()
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