make/unit-tests/varname-dot-parsedir.mk

# $NetBSD: varname-dot-parsedir.mk,v 1.3 2020/09/12 11:45:47 rillig Exp $
#
# Tests for the special .PARSEDIR variable, which contains the directory part
# of the file that is currently parsed.

# The .PARSEDIR may be absolute or relative, therefore there is not much that
# can be tested here.
.if !${.PARSEDIR:tA:M*/unit-tests}
.  error
.endif

# During parsing, it is possible to undefine .PARSEDIR.
# Not that anyone would ever want to do this, but there's code in parse.c,
# function PrintLocation, that explicitly handles this situation.
.undef .PARSEDIR

# The .rawout file contains the full path to the current directory.
# In the .out file, it is filtered out.
.info At this point, .PARSEDIR is undefined.

# There is absolutely no point in faking the location of the file that is
# being parsed.  Technically, it's possible though.
.PARSEDIR = /fake-absolute-path
.info The location can be faked.

# After including another file, .PARSEDIR is reset.
.include "/dev/null"
.info The location is no longer fake.

all:
	@:;