Makefile/cmake/node-gyp中区分判断不同平台的方法

ifeq ($(OS),Windows_NT)
 PLATFORM=\"Windows\"
else
 ifeq ($(shell uname),Darwin)
  PLATFORM=\"MacOS\"
 else
  PLATFORM=\"Unix-Like\"
 endif
endif
all:
  @echo $(PLATFORM)

if(APPLE)
//APPLE
elseif(UNIX)
//UNIX
else()
//Windows
endif()

   \'conditions\': [
    [\'OS==\"mac\"\', {
     \'xcode_settings\': {
      \'GCC_ENABLE_CPP_EXCEPTIONS\': \'YES\'
     },
     \"sources\": [\"native/serial/src/impl/list_ports/list_ports_osx.cc\",\"native/serial/src/impl/unix.cc\"]
    },
    \'OS==\"win\"\', {
     \"sources\": [\"native/serial/src/impl/list_ports/list_ports_win.cc\",\"native/serial/src/impl/win.cc\"],
     \'libraries\': [
     \'-lsetupapi.lib\',
     \'-lws2_32.lib\'
    ]
    }]
   ]