54 #define CONFIG_OS "__NetBSD__"  macro
57 #define CONFIG_OS "__FreeBSD__"  macro
60 #define CONFIG_OS "__OpenBSD__"  macro
63 #define CONFIG_OS "__DragonFly__"  macro
66 #define CONFIG_OS "__bsdi__"  macro
69 #define CONFIG_OS "__sun"  macro
72 #define CONFIG_OS "__sgi"  macro
75 #define CONFIG_OS "__SVR4"  macro
78 #define CONFIG_OS "__APPLE__"  macro
81 #define CONFIG_OS "__linux__"  macro
83 #define CONFIG_OS "__CYGWIN__"  macro
85 #define CONFIG_OS "__INTERIX"  macro
87 #define CONFIG_OS "__MINGW32"  macro
90 #define CONFIG_OS "__unix__"  macro