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Re: How to determine -rdyamic / -Wl,--export-dynamic flags?

From: Robert Boehne
Subject: Re: How to determine -rdyamic / -Wl,--export-dynamic flags?
Date: Mon, 19 Mar 2012 10:11:02 -0500
User-agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv: Gecko/20110118 Thunderbird/3.1.2

 On 03/18/12 17:10, Paul Smith wrote:
Does anyone have a macro that will correctly determine when -rdynamic
and/or -Wl,--export-dynamic can be used?  I'm not using libtool but I'd
like my application to be built such that functions in it can be invoked
by dynamically loaded objects.

I saw but
there was no definitive response... has anyone come up with something
since then?

I'd prefer to not invoke a test executable, to preserve cross-compiling.



I think you're not getting a response because you're asking a lot. Without testing by running an executable, this can't be determined behaviorally, so your best bet is some sort of lookup. I would suggest you write your own macro, where you set the flag based on known system information, and barring that try some link-time flags and use one that doesn't generate any errors.



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