Re: [Sdcc-user] Preprocessor directive: selected microcontroller

[Raphael N. <rn...@we...>]

Dear Tamas,

> I need to know which compiler directives are set. Can be they dumped during the compilation process? I'd like to check if __18F25J50 is in the list.

You should be able to use 'sdcc -Wp,-dM [more options] source.c' to
obtain a list of defined preprocessor makros (inherited from GNU CPP,
see info gcc) -- actually, that does not work: the preprocessor bails
out with 'ISO forbids empty source file' -- there is probably some
empty argument passed along, not sure.
As a workaround, you can call 'sdcc -V [more options] source.c' to see
how the preprocessor is invoked, copy that and add -dM to its
arguments.

Alternatively you believe me that the desired makro is not defined
(sdcc does not generate it, the included header file (if any)
apparently does not define it, so where would it come from?), but you
can easily add -D__18F25J50 to the sdcc command line to achieve the
desired effect.
You may also want to add --use-non-free to gain access to the device
headers and libraries ...

Raphael