Re: bin/54574: usr.bin/make/parse.c $Id: 1.231 drops core on NetBSD-5.2 in realpath(3)

["Simon J. Gerraty" <sjg%juniper.net@localhost>]

The following reply was made to PR toolchain/54574; it has been noted by GNATS.

From: "Simon J. Gerraty" <sjg%juniper.net@localhost>
To: <gnats-bugs%netbsd.org@localhost>
Cc: <gnats-admin%netbsd.org@localhost>, <netbsd-bugs%netbsd.org@localhost>, <buhrow%nfbcal.org@localhost>,
        <sjg%juniper.net@localhost>
Subject: Re: bin/54574: usr.bin/make/parse.c $Id: 1.231 drops core on NetBSD-5.2 in realpath(3)
Date: Wed, 25 Sep 2019 23:21:02 -0700

 John Nemeth <jnemeth%cue.bc.ca@localhost> wrote:
 >  HISTORY
 >       The realpath() function call first appeared in 4.4BSD.  In NetBSD =
 7.0 the
 >       function was updated to accept a NULL pointer for the resolvedname
 >       argument.
 >  =
 
 >  POSIX says:
 >  =
 
 >  If resolved_name is a null pointer, the behavior of realpath() is
 >  implementation-defined.
 >  =
 
 >  parse.c:1.231 in ParseVErrorInternal() calls realpath() with a null
 >  pointer for resolved_name thus relying on the NetBSD 7.0 behaviour.
 >  This is a portability bug.
 
 Thanks, will fix