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Re: [RFC] Adding --skip-mismatch option to ld


   Date: Tue, 8 Jun 1999 20:49:32 -0700
   From: Richard Henderson <rth@cygnus.com>

   On Tue, Jun 08, 1999 at 05:31:44PM -0400, Ian Lance Taylor wrote:
   > 2) I don't understand why it's needed.  Changing the default search
   >    path, as is done by the first half of the patch, sounds like the
   >    right approach to me.  Irix faces these exact issues with its
   >    multiple ABIs, yet it does not need this option.

   That works for system directories, but not /usr/local/lib and other
   such places under user control.  One could argue that we simply need
   to teach old users new tricks.

I don't see how it works for /usr/local/lib anyhow.  If you expect to
find the library in /usr/local/lib, but the wrong library is there,
then as far as I can see you won't find the library at all.  If you
need to find it in some other directory, you will need to add a -L
option, and if you do that it will work anyhow.

Perhaps we can make gcc's multilib feature handle this somehow?

   > I don't think the option name --skip-mismatch is quite right.  That
   > seems too general for this.  How about something like
   > --skip-incompatible-archives?

   We already have --[no-]warn-mismatch that's tangentially related.
   That's presumably where Jakub got the name.

That makes sense.  I was thinking that --skip-mismatch was just for
archives, but technically it is for any file for which the linker
searches, so I suppose it is reasonable.

Ian

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