Re: Linking only required objects

[Colin S. Miller]

Bernhard Mogens Ege wrote:
> I try to link only required objects into my executable but I dont know 
> which objects are required so I add lots of -l<library> to my linker 
> stage (using gnu ld). My program is linked and runs. Fine. But checking 
> with ldd I see that it now depends on all these libraries, some of them 
> I am sure are not required.
>
> How do I find out which libraries are required and which are not required?
Bernhard,

You can use 'nm' (name) or 'objdump' to list the functions that a library 
provides.

It is generally recommend not to call 'ld' directly, instead you use 'gcc'
to do the link - it will add libc (and libstdc++ if called as gpp).

HTH,
Colin S. Miller


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