tetgen/CMakeLists.txt at main · pyvista/tetgen · GitHub

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cmake_minimum_required(VERSION 3.15...3.26)

project(nanobind_project LANGUAGES CXX)
# find_package(OpenMP REQUIRED)

# Try to import all Python components potentially needed by nanobind
find_package(Python 3.10
  REQUIRED COMPONENTS Interpreter Development.Module
  OPTIONAL_COMPONENTS Development.SABIModule)

# Import nanobind through CMake's find_package mechanism
find_package(nanobind CONFIG REQUIRED)

nanobind_add_module(
  # Name of the extension
  _tetgen

  # Target the stable ABI for Python 3.12+, which reduces
  # the number of binary wheels that must be built. This
  # does nothing on older Python versions
  STABLE_ABI

  # conserve space by reusing a shared libnanobind across libraries (necessary here?)
  NB_STATIC

  src/tetgen.cxx       # Core src from tetgen
  src/predicates.cxx   # Supporting src from tetgen
  src/_tetgen.cpp      # nanobind interface to tetgen.cxx
)

# Link OpenMP
# if(OpenMP_CXX_FOUND)
#   target_link_libraries(_tetgen PRIVATE OpenMP::OpenMP_CXX)
# endif()

# Compiler-specific options
if(MSVC)
  # Use MSVC optimization levels and OpenMP setup
  target_compile_options(_tetgen PRIVATE /O2 /std:c++17)
  # /openmp:llvm
else()
  # Assuming GCC or Clang
  target_compile_options(_tetgen PRIVATE
    -O3
    -fno-expensive-optimizations  # causes severe issues on ARM
  )
  # -fopenmp
endif()

target_compile_definitions(_tetgen PRIVATE TETLIBRARY)

# Example debugging
# set solib-search-path /home/user/python/.venv311/lib/python3.11/site-packages/tetgen/
# set breakpoint with b qual.cpp:4872
# target_compile_options(tetgen PRIVATE -g -O0)
# target_compile_options(pfh PRIVATE -g -O0)

# Install directive for scikit-build-core
install(TARGETS _tetgen LIBRARY DESTINATION tetgen)