Linux vs Cygwin linkage

Sat Feb 18 18:52:00 GMT 2006

On Sun, Feb 19, 2006 at 05:39:41AM +1100, skaller wrote:
>I have found some unexpected differences between Cygwin and Linux. FYI
>I think Cygwin is right, and Linux is wrong.
>>What happens is I have a DLL P which depends on a DLL F and a DLL D. A
>also depends on R. The executable depends on R D and F.
>>Under Linux, I link P against F, and it works. IMHO this is just plain
>wrong. It seems to be pooling symbols globally or something.
>>Under Cygwin this does not happen. The link of P fails with an
>undefined symbol from D. I think this is correct.
>>If anyone can throw some light on this I'd appreciate it. Is it this
>option:?
>>--allow-shlib-undefined --no-allow-shlib-undefined Allows (the default)
>or disallows undefined symbols in shared libraries.
>>Can I fix that with
>>-Wl,--no-allow-shlib-undefined
>>switch to gcc, so Linux and Cygwin behave the same?

This is a question for a linux mailing list. Why are you asking here?
cgf
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