freebsd-src/unit-tests/varmod-remember.mk

# $NetBSD: varmod-remember.mk,v 1.3 2020/08/23 15:18:43 rillig Exp $
#
# Tests for the :_ modifier, which saves the current variable value
# in the _ variable or another, to be used later again.

# In the parameterized form, having the variable name on the right side of
# the = assignment operator is confusing.  In almost all other situations
# the variable name is on the left-hand side of the = operator.  Luckily
# this modifier is only rarely needed.
all:
	@echo ${1 2 3:L:_:@var@${_}@}
	@echo ${1 2 3:L:@var@${var:_=SAVED:}@}, SAVED=${SAVED}
Import bmake-20200902 Lots of code refactoring, simplification and cleanup. Lots of new unit-tests providing much higher code coverage. All courtesy of rillig at netbsd. Other significant changes: o new read-only variable .SHELL which provides the path of the shell used to run scripts (as defined by the .SHELL target). o new debug option -dl: LINT mode, does the equivalent of := for all variable assignments so that file and line number are reported for variable parse errors. 2020-09-05 16:11:04 +00:00			`# $NetBSD: varmod-remember.mk,v 1.3 2020/08/23 15:18:43 rillig Exp $`
			`#`
			`# Tests for the :_ modifier, which saves the current variable value`
			`# in the _ variable or another, to be used later again.`

			`# In the parameterized form, having the variable name on the right side of`
			`# the = assignment operator is confusing. In almost all other situations`
			`# the variable name is on the left-hand side of the = operator. Luckily`
			`# this modifier is only rarely needed.`
			`all:`
			`@echo ${1 2 3:L:_:@var@${_}@}`
			`@echo ${1 2 3:L:@var@${var:_=SAVED:}@}, SAVED=${SAVED}`