1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
# $NetBSD: cmdline.mk,v 1.5 2024/04/23 22:51:28 rillig Exp $
#
# Tests for command line parsing and related special variables.
TMPBASE?= ${TMPDIR:U/tmp/uid${.MAKE.UID}}
SUB1= a7b41170-53f8-4cc2-bc5c-e4c3dd93ec45 # just a random UUID
SUB2= 6a8899d2-d227-4b55-9b6b-f3c8eeb83fd5 # just a random UUID
MAKE_CMD= env TMPBASE=${TMPBASE}/${SUB1} ${.MAKE} -f ${MAKEFILE} -r
DIR2= ${TMPBASE}/${SUB2}
DIR12= ${TMPBASE}/${SUB1}/${SUB2}
all: prepare-dirs
all: makeobjdir-direct makeobjdir-indirect
all: space-and-comment
prepare-dirs:
@rm -rf ${DIR2} ${DIR12}
@mkdir -p ${DIR2} ${DIR12}
# The .OBJDIR can be set via the MAKEOBJDIR command line variable.
# It must be a command line variable; an environment variable would not work.
makeobjdir-direct:
@echo $@:
@${MAKE_CMD} MAKEOBJDIR=${DIR2} show-objdir
# The .OBJDIR can be set via the MAKEOBJDIR command line variable,
# and expressions based on that variable can contain the usual modifiers.
# Since the .OBJDIR=MAKEOBJDIR assignment happens very early,
# the SUB2 variable in the modifier is not defined yet and is therefore empty.
# The SUB1 in the resulting path comes from the environment variable TMPBASE,
# see MAKE_CMD.
makeobjdir-indirect:
@echo $@:
@${MAKE_CMD} MAKEOBJDIR='$${TMPBASE}/$${SUB2}' show-objdir
show-objdir:
@echo $@: ${.OBJDIR:Q}
# Variable assignments in the command line are handled differently from
# variable assignments in makefiles. In the command line, trailing whitespace
# is preserved, and the '#' does not start a comment. This is because the
# low-level parsing from ParseRawLine does not take place.
#
# Preserving '#' and trailing whitespace has the benefit that when passing
# such values to sub-makes via MAKEFLAGS, no special encoding is needed.
# Leading whitespace in the variable value is discarded though, which makes
# the behavior inconsistent.
space-and-comment: .PHONY
@echo $@:
@env -i \
${MAKE} -r -f /dev/null ' VAR= value # no comment ' -v VAR \
| sed 's,$$,$$,'
@env -i MAKEFLAGS="' VAR= value # no comment '" \
${MAKE} -r -f /dev/null -v VAR \
| sed 's,$$,$$,'
|
