CVS commit: src/usr.bin/make

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

Module Name:    src
Committed By:   rillig
Date:           Mon Feb 22 21:14:15 UTC 2021

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

Log Message:
make: document interaction between cmdline and global variables

Make prevents global variables from being or becoming visible when a
command line variable of the same name is already defined.

There is a double safety net here.  Even if the call to Var_DeleteExpand
were removed, there would be no noticeable effect, other than one less
line in the debug log.

No functional change.


To generate a diff of this commit:
cvs rdiff -u -r1.831 -r1.832 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.