Hi!

On Sun, 22 Apr 2007 13:14:16 -0400 (EDT), Gary Thorpe wrote:
> => Unwrapping files-to-be-installed.
> ===> Installing for libwww-5.4.0nb5
> => Becoming ``root'' to make su-install-all (/usr/bin/su)
> su: Sorry: conversation failure
> *** Error code 1

Following patch should fix the problem.

Index: mk/flavor/pkg/depends.mk
===================================================================
RCS file: /cvsroot/pkgsrc/mk/flavor/pkg/depends.mk,v
retrieving revision 1.26
diff -u -r1.26 depends.mk
--- mk/flavor/pkg/depends.mk    19 Mar 2007 16:43:59 -0000      1.26
+++ mk/flavor/pkg/depends.mk    31 Mar 2007 07:59:00 -0000
@@ -72,11 +72,12 @@
 #
 _flavor-install-dependencies: .PHONY ${_DEPENDS_FILE}
        ${RUN}                                                          \
+       exec 3<&0;                                                      \
        while read type pattern dir rest; do                            \
                { [ "$$dir" ] && [ ! "$$rest" ]; }                      \
                || ${FAIL_MSG} "[depends.mk] Internal error #1: Check ${_DEPENDS_FILE}"; \
                silent=;                                                \
-               ${_DEPENDS_INSTALL_CMD};                                \
+               ${_DEPENDS_INSTALL_CMD} <&3;                            \
        done < ${_DEPENDS_FILE}

 ######################################################################

Following commit break the function:
http://mail-index.netbsd.org/pkgsrc-changes/2007/02/19/0021.html
Stdin is changed to ${_DEPENDS_FILE}, /usr/bin/su read stdin, so failed.
("sudo" command doesn't havs such a ploblem).

This commit seems to try fixing problem on IRIX, but I don't have knowledge of the platform.
Maybe PR 35294?

--
"Of course I love NetBSD":-)
OBATA Akio / obata@lins.jp