The following reply was made to PR pkg/33575; it has been noted by GNATS.

From: "Aaron J. Grier" <agrier@poofygoof.com>
To: gnats-bugs@NetBSD.org
Cc: pkgsrc-bugs@netbsd.org
Subject: Re: pkg/33575:
Date: Sun, 28 May 2006 14:36:01 -0700

 On Sun, May 28, 2006 at 09:35:03AM +0000, Thomas Klausner wrote:
 >  > textproc/expat does not build with builtin expat library
 >  
 >  textproc/expat is a replacement for a builtin expat library, so I
 >  don't understand this sentence.
 
 if the builtin version of expat satisfies textproc/expat/buildlink3.mk,
 (which I have forced in my example to accept a builtin version of >=
 1.95.6), the logic in textproc/expat/builtin.mk will fail:
 
 ###
 ### The section below only applies if we are not including this file
 ### solely to determine whether a built-in implementation exists.
 ###
 CHECK_BUILTIN.expat?=   no
 .if !empty(CHECK_BUILTIN.expat:M[nN][oO])
 
 .  if !empty(USE_BUILTIN.expat:M[nN][oO])
 BUILDLINK_API_DEPENDS.expat+=   expat>=1.95.4
 .  endif
 
 .  if !empty(USE_BUILTIN.expat:M[yY][eE][sS])
 
 [
   at this point:
   USE_BUILTIN.expat=YES
   H_EXPAT=/usr/X11R6/include/expat.h
   X11BASE=${DESTDIR}/usr/X11R6
   DESTDIR= (empty)
 ]
 
 .    if !empty(H_EXPAT:M${X11BASE}/)
 
 [
   the above comparison will always fail since it's missing the wildcard
   at the end of the expression.
 ]
 
 BUILDLINK_PREFIX.expat= ${X11BASE}
 .      include "../../mk/x11.buildlink3.mk"
 .      include "../../mk/x11.builtin.mk"
 .    else
 BUILDLINK_PREFIX.expat= /usr
 .    endif
 .  endif 
 
 .endif  # CHECK_BUILTIN.expat
 
 [
   instead of BUILDLINK_PREFIX.expat= ${X11BASE} as desired, we get
   BUILDLINK_PREFIX.expat= /usr, which causes the expat-needing program
   to fail compilation.
 ]
 
 -- 
   Aaron J. Grier | "Not your ordinary poofy goof." | agrier@poofygoof.com
               "silly brewer, saaz are for pils!"  --  virt