Re: ld --as-needed (math/gnumeric110 has unnecessary dependencies)

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Thu, Nov 25, 2010 at 12:53:38AM +0000, David Holland wrote:
> On Wed, Nov 24, 2010 at 10:48:46PM +0200, Aleksey Cheusov wrote:
>  > 0 ~>gcc -DPIC -fPIC -shared -o libmy1.so my.c -lcompat -lutil -lm
>  > 
>  > 0 ~>gcc -DPIC -fPIC -Wl,--as-needed -shared -o libmy2.so my.c -lcompat 
> -lutil -lm
>  > 
>  > 0 ~>ldd ./libmy1.so
>  > ./libmy1.so:
>  >         -lutil.7 => /usr/lib/libutil.so.7
>  >         -lc.12 => /usr/lib/libc.so.12
>  >         -lm.0 => /usr/lib/libm.so.0
>  > 
>  > 0 ~>ldd ./libmy2.so
>  > ./libmy2.so:
>  >         -lc.12 => /usr/lib/libc.so.12
> 
> I thought that behavior was the default (for ELF libs anyway) since
> years and years ago?

No, simply because --as-needed has created quite a few breakages...
What you mean is normal transitive closure.

Joerg