CVS commit: src/usr.bin/make

["Roland Illig" <rillig%netbsd.org@localhost>]

Module Name:    src
Committed By:   rillig
Date:           Sat Apr 27 21:26:23 UTC 2024

Modified Files:
        src/usr.bin/make: var.c

Log Message:
make: fix comment about forcing a use-after-free

The previous expression didn't cause any bug, as the modifier
':@VAR@loop@' changed the value of the expression, thus making the
expression independent from the variable value.

Instead, the variable needs to be deleted from within an indirect
modifier, and that modifier needs to evaluate to an empty string, thus
doing nothing and preserving the original expression value.


To generate a diff of this commit:
cvs rdiff -u -r1.1106 -r1.1107 src/usr.bin/make/var.c

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