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[CDT] export a symbol to project in refence [message #1822550]

Mon, 09 March 2020 13:54

Eclipse User

Hi everyone,

On CDT, I have a project composed of a main project (with main) named "Proj_A"and a sub project "Proj_B".

"Proj_B"' build a static lib. It is configured as a "reference" in the configuration of "Proj_A". ('Paths and Symbol' menu)

I would like to provide a symbol from "Proj_A" to "Proj_B" (depending of the configuration of "Proj_A").
For example, "Proj_A" define the symbol TRACE_DEBUG=1, and "Proj_B" need this information. How can I give this symbol to "Proj_B"?

In the IDE, I see that in Proj_A I can export symbol ('Paths and Symbol' menu).
This print : TRACE_DEBUG[exp]

But I can't retrieve this symbol in "Proj_B".
Could you please help me on that subject?

Regards
Gregory

Re: [CDT] export a symbol to project in refence [message #1822636 is a reply to message #1822550]

Tue, 10 March 2020 11:59

Eclipse User

Export on "Paths and Symbols" doesn't do what you apparently think it does.
It writes files which can be imported into another project.
It's a kind of easy project configuration to reduce typing.
It is in no way dynamic.
Any changes made in A must be manually re-exported then re-imported to B.

What you probably want is a header file in project A that can be included by project B.

Re: [CDT] export a symbol to project in refence [message #1822647 is a reply to message #1822636]

Tue, 10 March 2020 14:07

Eclipse User

Long time I investigated "pre / post processing" . Run /used DOS batch files after compiler was done.
I wonder if similar process could be used to pass the required data between applications.

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