The following predefinitions are valid in all modes:
_ _sun
_ _unix
_ _lint
_ _SUNPRO_C=0x50
_ _`uname -s`_`uname -r` (example: _ _SunOS_5_7)
_ _RESTRICT (-Xa and -Xt modes only)
_ _sparc (SPARC)
_ _i386 (Intel)
_ _BUILTIN_VA_ARG_INCR
_ _SVR4
_ _sparcv9 (-Xarch=v9)
These predefinitions are not valid in -Xc mode:
sun
unix
sparc (SPARC)
i386 (Intel)
lint