CVS commit: src/bin/sh

["Robert Elz" <kre%netbsd.org@localhost>]

Module Name:    src
Committed By:   kre
Date:           Thu Oct 18 04:24:43 UTC 2018

Modified Files:
        src/bin/sh: mkinit.sh

Log Message:
Dynamically detect the way the shell matches \ in a pattern,
and use whatever works for the sh running this script.  Previously
we were using the (broken, and incorrect) method that worked in
old broken NetBSD sh's (and some others) and not the method that
works with the current (fixed) /bin/sh and other correct shells
(like bash).   (For an exotic reason, in the particular use case,
both methods work with ksh93, but it is also generally correct).

This hasn't really mattered, as the difference is only significant
(only causes actual issues - the build fails) when compiling with DEBUG
enabled, which is something that most sane humans would never do, if they
want to retain that sanity.

The problem was detected by Patrick Welche when looking for an
unrelated problem, which was once considered to be a possible sh
problem, but turned out to be something entirely different.

XXX pullup -8


To generate a diff of this commit:
cvs rdiff -u -r1.8 -r1.9 src/bin/sh/mkinit.sh

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.