CVS commit: src/usr.bin/make

["Simon J. Gerraty" <sjg%netbsd.org@localhost>]

Module Name:    src
Committed By:   sjg
Date:           Mon Oct 12 16:48:13 UTC 2015

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

Log Message:
The conditional expressions used with ':?' can be expensive
eg. exists() does stat(2).
If 'wantit' is FALSE, we are going to discard everything anyway,
so skip evaluating the conditional and expanding either lhs or rhs.


To generate a diff of this commit:
cvs rdiff -u -r1.197 -r1.198 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.