CVS commit: src/usr.bin/make

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

Module Name:    src
Committed By:   rillig
Date:           Sat Oct  3 10:31:05 UTC 2020

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

Log Message:
make(1): do not export variable names starting with '-'

By convention, names of environment variables consist of uppercase
letters and underscores.  Most of them start with an uppercase letter.
In a few cases, the names also contain lowercase letters, such as in
http_proxy.

Variable names starting with a hyphen are confusing and might be
mistaken as command line options.  Therefore don't export these.

This also affects a few edge cases that don't occur in practice, such as
setting .MAKE.EXPORTED=-env or .MAKE.EXPORTED=-literal.  These had not
worked as expected anyway.


To generate a diff of this commit:
cvs rdiff -u -r1.557 -r1.558 src/usr.bin/make/var.c
cvs rdiff -u -r1.2 -r1.3 src/usr.bin/make/unit-tests/make-exported.exp \
    src/usr.bin/make/unit-tests/make-exported.mk

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