CMake/Modules/Compiler/Watcom-DetermineCompiler.cmake

set(_compiler_id_pp_test "defined(__WATCOMC__) && __WATCOMC__ < 1200")

set(_compiler_id_version_compute "
   /* __WATCOMC__ = VVRR */
# define @PREFIX@COMPILER_VERSION_MAJOR DEC(__WATCOMC__ / 100)
# define @PREFIX@COMPILER_VERSION_MINOR DEC((__WATCOMC__ / 10) % 10)
# if (__WATCOMC__ % 10) > 0
#  define @PREFIX@COMPILER_VERSION_PATCH DEC(__WATCOMC__ % 10)
# endif")