[Click] element_provides and element_requires

[Eddie Kohler]

Hey,

What were the linker errors?

Eddie


Nele Gheysens wrote:
> Hello,
> 
> I tried to apply the following FAQ from the trains website:
> 
> /How can I make Click compile a C++ file that doesn't contain an element?
> Add an ELEMENT_PROVIDES statement to your .cc file. The Click build 
> process searches for C and C++ files with 'ELEMENT_PROVIDES' as well as 
> 'EXPORT_ELEMENT'. You'll have to come up with a one-word tag describing 
> the functionality that your .cc file provides. See the end of 
> 'elements/userlevel/fakepcap.cc' for an example; it looks like this:
> ...
> CLICK_ENDDECLS
> ELEMENT_REQUIRES(userlevel|ns)
> ELEMENT_PROVIDES(FakePcap)
> Elements that use the 'FakePcap' functionality explicitly require it 
> with ELEMENT_REQUIRES; see 'elements/userlevel/fromdump.cc' for an 
> example./
> 
> 
> I followed this example, but I get a whole bunch of linker errors. Does 
> anyone have some experience with this?
> The files on which I tried this used to be the include and lib map and 
> they didn't cause any problems.
> 
> Thanks,
> 
> Nele Gheysens
>