squeezelite-esp32/components/spotify/cspot/bell/cmake/Findportaudio.cmake

#  PORTAUDIO_FOUND - system has libportaudio
#  PORTAUDIO_INCLUDE_DIRS - the libportaudio include directory
#  PORTAUDIO_LIBRARIES - Link these to use libportaudio

if (PORTAUDIO_LIBRARIES AND PORTAUDIO_INCLUDE_DIRS)
  # in cache already
  set(PORTAUDIO_FOUND TRUE)
else (PORTAUDIO_LIBRARIES AND PORTAUDIO_INCLUDE_DIRS)
  if(WIN32)
	set(PORTAUDIO_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/external/portaudio/include")

    if(NOT "${CMAKE_GENERATOR}" MATCHES "(Win64|IA64)")
	  set(PORTAUDIO_LIBRARY "${CMAKE_CURRENT_SOURCE_DIR}/external/portaudio/portaudio_win32.lib")	  
    else()
      set(PORTAUDIO_LIBRARY "${CMAKE_CURRENT_SOURCE_DIR}/external/portaudio/portaudio_x64.lib")
    endif()
  else()
 	find_path(PORTAUDIO_INCLUDE_DIR
	  NAMES
		portaudio.h
		PATHS
			/usr/include
			/usr/local/include
			/opt/local/include
			/sw/include
	)
  
	find_library(PORTAUDIO_LIBRARY
		NAMES
		portaudio
		PATHS
			/usr/lib
			/usr/local/lib
			/opt/local/lib
			/sw/lib
	)
  endif()
  
  set(PORTAUDIO_INCLUDE_DIRS
    ${PORTAUDIO_INCLUDE_DIR}
  )
  set(PORTAUDIO_LIBRARIES
    ${PORTAUDIO_LIBRARY}
  )

  if (PORTAUDIO_INCLUDE_DIRS AND PORTAUDIO_LIBRARIES)
    set(PORTAUDIO_FOUND TRUE)
  endif (PORTAUDIO_INCLUDE_DIRS AND PORTAUDIO_LIBRARIES)

  if (PORTAUDIO_FOUND)
    if (NOT Portaudio_FIND_QUIETLY)
      message(STATUS "Found libportaudio: ${PORTAUDIO_LIBRARIES}")
    endif (NOT Portaudio_FIND_QUIETLY)
  else (PORTAUDIO_FOUND)
    if (Portaudio_FIND_REQUIRED)
      message(FATAL_ERROR "Could not find libportaudio")
    endif (Portaudio_FIND_REQUIRED)
  endif (PORTAUDIO_FOUND)

  # show the PORTAUDIO_INCLUDE_DIRS and PORTAUDIO_LIBRARIES variables only in the advanced view
  mark_as_advanced(PORTAUDIO_INCLUDE_DIRS PORTAUDIO_LIBRARIES)

endif (PORTAUDIO_LIBRARIES AND PORTAUDIO_INCLUDE_DIRS)