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|  The OPT keyword                                                  |

   OPT may be followed by:

   MODULE         - Declare source as module.

   EXPORT         - Export everything from module, except PRIVATE stuff.

   NOWARN         - Disable the output of all warnings.

   OSVERSION      - ECX 1.6.0+
                    Explicitly define the minimum os version we require.
                    ECX will warn if we make use of a module with a version
                    number higher than the version we have requested with
                    OPT OSVERSION, but only if the module in question contains
                    code. Startup will fail as usual if started on a version
                    of the os < OSVERSION.
                    If OSVERION is not defined, ECX will automatically set it
                    to the highest OSVERSION of any module used, _that contains
                    code_, otherwise leave it to zero. ECX shows the osversion
                    in the normal shell output, if it is > 0. Note that the
                    startup may require a higher osversion than the one you
                    have defined..

   -- Input / output / paths --

   DIR            - Add another directory to the list of directories to search
                    for modules in. Directory will be placed at top of list.
                    Multiple directories may be specified, the right-most will
                    get searched first. ex: OPT DIR = 'ecymodules: bla:urgh/'.

   EXENAME        - Tell ECX to name resulting executable/library differently.
                    Filename only, does not alter directory.
                    Example: OPT EXENAME = 'myfantasticexe'

   MODNAME        - Tell ECX to name resulting module differently.
                    Filename only, does not alter directory.
                    '.m' will get appended to name.
                    Example: OPT MODNAME = 'myfantasticmod'

   -- Compatibility --

   ASM            - Does nothing. For compatibility.

   LARGE          - For compatibility. does nothing.

   FPEXP          - For compatibility with CreativE.
                    Turns on OPT ROUNDNEAR.

   -- Optimisation --

   REG            - Does the same as NUMREGALLOC/N command line option. ex: "REG=5".

   FREG           - Like REG, but for DOUBLE vars.

   -- Preprocessing --

   PREPROCESS     - Enable preprocessing of source.

   -- Targets --

   POWERPC        - *DEPRECATED,OBSOLETE* Does the same as MORPHOS.

   AMIGAOS        - Compile code for AmigaOS.

   AMIGAOS4       - Compile code for AmigaOS4.

   MORPHOS        - Compile code for MorphOS.

   NATURALALIGN   - Forces natural alignment of OBJECT members, that is
                    LONG at 4-byte boundaries, DOUBLE at 8-byte boundaries, etc.

   ROUNDNEAR      - Make integer to float conversion round to nearest
                    instead of the default towards zero.

   -- Startupcode --

   STACK      - Manually set the stacksize that startupcode will allocate.
                ex : OPT STACK=50000

   MINSTARTUP - A very minimal startup code will be used.
                No libraries are opened (except execbase).
                No stdin, stdout or wbmessage.
                Built-in memory functions, exceptions, globals,
                inline lists, will work.
                Avoid using mixed code (ppc+68k).
                (Similar to CreativE's OPT NOSTARTUP.
                Sorry for name confusion.
                NOSTARTUP works different with ECX, see below).

   NOSTARTUP  - No startupcode will be used.
                Execution will start at the first piece of code in the main
                source (through a jump though). Nothing is initialised at
                this point. Immediate lists will not work, neither will any
                global variables or exceptions.

   -- Other --

   NODEFMODS  - Disable loading of the default modules: