Re: Packaging:library packaging stuff

[Felipe Sateler <fsateler@gmail.com>]

Adrian von Bidder wrote:

>>> * How do I pass the right linker flags (-Wl,--as-needed?) through cmake
>>> to= =20
>>> the linker?  Whatever I tried so far, it was ignored and I get a few=20
>>> warnings from dpkg-shlibdeps.  (This is more a question of style,
>>> since=20 they're libraries I'd expect a KDE user has installed in any
>>> case.)
>>
>>-DCMAKE_LD_FLAGS="-Wl,--as-needed -Wl,-z,defs".
>>
>>Unless you know what you are doing, don't pass --as-needed with out
>>--no-undefined.
> 
> Ok.  Wasn't there some debconf talk some time ago about --as-needed? 
> Slides or other paper available?  I think the section in libpkg-guide
> about this issue is a bit short (I'll try to imrpove that section and at
> least put ion the hint about using --no-undefined)

Note that the --no-undefined flag can break builds if you have plugins that 
expect to use symbols from the binary they are loaded from.

-- 
Felipe Sateler