CVS commit: src/usr.bin/make

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

Module Name:    src
Committed By:   rillig
Date:           Sun Jul 19 22:04:28 UTC 2020

Modified Files:
        src/usr.bin/make: var.c
        src/usr.bin/make/unit-tests: sysv.exp sysv.mk

Log Message:
make(1): make ampersand in ${VAR:from=to&} an ordinary character

In SysV substitutions, wildcards are expressed with % instead of &.  The
& is not mentioned in the manual page, and having another wildcard for
the whole word would be such an obscure feature that not even pkgsrc uses
it.  The easiest way to discover this feature had been to read the source
code of make(1) or to use a fuzzer and accidentally stumble upon this
edge case.


To generate a diff of this commit:
cvs rdiff -u -r1.275 -r1.276 src/usr.bin/make/var.c
cvs rdiff -u -r1.5 -r1.6 src/usr.bin/make/unit-tests/sysv.exp
cvs rdiff -u -r1.6 -r1.7 src/usr.bin/make/unit-tests/sysv.mk

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