RE: libgcc

["Richard Earnshaw" <rearnsha%arm.com@localhost>]

>    On Dec 7, 2009, at 6:45 PM, matthew green wrote:
> 
>    > i don't know what the ramafications of that are though.
> 
>    It seems like all shared libraries need to have a dependency against
> the shared libgcc.  Isn't it required for e.g. exceptions, too?
> 
> 
> it is required for c++, but not anything more afaik.
> 
> the shared libgcc is only linked in by the c++ driver, not the
> gcc driver.  i don't know what it means to have it linked into
> normal C apps as well.

Libc on Linux does not have a dependency on libgcc_s.so; I'm not sure why
NetBSD should need one.

Note that by linking in libgcc_pic.a with each shared library there really
shouldn't be a need to change the shared library dependencies in most cases.

Libgcc_s.so exists because there really does have to be exactly one instance
of the exception unwind support code in an application.

R.