Re: ld: /usr/lib/libutil.so.7: warning: warning: reference to compatibility ...

[Thomas Klausner <wiz%netbsd.org@localhost>]

On Wed, Feb 25, 2026 at 10:12:41PM +0100, Joerg Sonnenberger wrote:
> On 2/24/26 9:41 PM, Thomas Klausner wrote:
> > When compiling code in pkgsrc, I often see this block:
> > 
> > ld: /usr/lib/libutil.so.7: warning: warning: reference to compatibility login_getpwclass(); include <login_cap.h> for correct reference
> 
> Yes, this is a GNU ld bug in that it is reporting references from shared
> libraries. I looked at it years ago, but gave up trying to resolve those.

Would it be an option to use __attribute__((deprecated(msg)))
instead of the asm macro we have now?

For comparison, here's what we have now (sys/cdefs_elf.h):

#define __warn_references(sym,msg)                                      \
    __asm(".pushsection .gnu.warning." #sym "\n"                        \
          ".ascii \"" msg "\"\n"                                        \
          ".popsection");

In my toy example, this seems to work better, only printing an error
when the function is actually called.
 Thomas