# -*- cmake -*-

set(PYTHONINTERP_FOUND)

if (WINDOWS)
  # On Windows, explicitly avoid Cygwin Python.

  find_program(python
    NAMES python3.exe python.exe
    NO_DEFAULT_PATH # added so that cmake does not find cygwin python
    PATHS
    [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.7\\InstallPath]
    [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.8\\InstallPath]
    [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.9\\InstallPath]
    [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.10\\InstallPath]
    [HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\3.11\\InstallPath]
    [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.7\\InstallPath]
    [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.8\\InstallPath]
    [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.9\\InstallPath]
    [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.10\\InstallPath]
    [HKEY_CURRENT_USER\\SOFTWARE\\Python\\PythonCore\\3.11\\InstallPath]
    )
    include(FindPythonInterp)
else()
  find_program(python python3)

  if (python)
    set(PYTHONINTERP_FOUND ON)
  endif (python)
endif (WINDOWS)

if (NOT python)
  message(FATAL_ERROR "No Python interpreter found")
endif (NOT python)

set(PYTHON_EXECUTABLE "${python}" CACHE FILEPATH "Python interpreter for builds")
mark_as_advanced(PYTHON_EXECUTABLE)