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

>Number:         54574
>Category:       bin
>Synopsis:       usr.bin/make/parse.c $Id: 1.231 drops core in realpath(3) on NetBSD-5.2
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Sep 26 02:55:00 +0000 2019
>Originator:     Brian Buhrow
>Release:        NetBSD 5.2_STABLE
NFB of California
System: NetBSD 5.2_STABLE NetBSD 5.2_STABLE (RBL) #0: Thu Mar 27 10:15:56 PDT 2014 i386
Architecture: i386
Machine: i386
When trying to build NetBSD-9 release on a NetBSD-5.2 system using sources
from the netbsd-9 branch, nbmake core dumps when realpath is called from
usr.bin/make/parse.c.  It appears the changes sjg made in Revision 1.231 of
parse.c are the culprit.  Using versions of parse.c older than 1.231 run
without trouble on NetBSD-5.2.
Download the src-90 source tree on a NetBSD-5.2 system.
Clear your obj directory.
Then run:

./ -m amd64 -D /var/tmp/netbsd-90-64 -O /usr/local/netbsd/obj-64 -j 4 release
Figure out why realpath is seg faulting with the pointers given it by
parse.c as added in parse.c, 1.231.



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