[fpc-devel] New rules for External

[Jonas Maebe]

On 26 nov 2004, at 19:36, Peter Vreman wrote:

>> But e.g.
>>   gcc -c -o test.ow test.c
>> produces identifiers *without* "_"-prefix
>
> That is why you also can use "external name 'namewithoutunderscore'"

That's not entirely correct. If gcc adds an underscore to the start of 
symbol names by default on the target we're compiling for, then FPC 
will also add an underscore if you use something like this:

procedure test; cdec; external name 'test';

The reason is that otherwise such declarations become unportable and 
require ifdef's depending on whether or not the target platform uses an 
underscore by default. If you don't make the routine "cdecl", then the 
underscore will never be added of course (but then the routine also 
won't follow C calling conventions).


Jonas