[src/trunk]: src/usr.bin/make/unit-tests tests/make: test how '$' behaves in ...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/515c8f8fa4a3
branches:  trunk
changeset: 373707:515c8f8fa4a3
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sat Feb 25 00:09:52 2023 +0000

description:
tests/make: test how '$' behaves in .MAKEOVERRIDES and MAKEFLAGS

diffstat:

 usr.bin/make/unit-tests/varname-dot-makeoverrides.exp |   4 ++++
 usr.bin/make/unit-tests/varname-dot-makeoverrides.mk  |  18 ++++++++++++++----
 2 files changed, 18 insertions(+), 4 deletions(-)

diffs (35 lines):

diff -r bef9cd41b4fa -r 515c8f8fa4a3 usr.bin/make/unit-tests/varname-dot-makeoverrides.exp
--- a/usr.bin/make/unit-tests/varname-dot-makeoverrides.exp     Sat Feb 25 00:07:08 2023 +0000
+++ b/usr.bin/make/unit-tests/varname-dot-makeoverrides.exp     Sat Feb 25 00:09:52 2023 +0000
@@ -1,1 +1,5 @@
+make -r -f varname-dot-makeoverrides.mk dollars_stage_2 DOLLARS='$${varname}'
+stage 2: dollars=<${varname}>
+make -r -f varname-dot-makeoverrides.mk dollars_stage_3
+stage 3: dollars=<>
 exit status 0
diff -r bef9cd41b4fa -r 515c8f8fa4a3 usr.bin/make/unit-tests/varname-dot-makeoverrides.mk
--- a/usr.bin/make/unit-tests/varname-dot-makeoverrides.mk      Sat Feb 25 00:07:08 2023 +0000
+++ b/usr.bin/make/unit-tests/varname-dot-makeoverrides.mk      Sat Feb 25 00:09:52 2023 +0000
@@ -1,8 +1,18 @@
-# $NetBSD: varname-dot-makeoverrides.mk,v 1.3 2023/02/15 06:52:59 rillig Exp $
+# $NetBSD: varname-dot-makeoverrides.mk,v 1.4 2023/02/25 00:09:52 rillig Exp $
 #
 # Tests for the special .MAKEOVERRIDES variable.
 
-# TODO: Implementation
+all:
+       @${MAKE} -r -f ${MAKEFILE} dollars_stage_1
 
-all:
-       @:;
+# Demonstrate that '$' characters are altered when they are passed on to child
+# make processes via .MAKEOVERRIDES and MAKEFLAGS.
+dollars_stage_1:
+       ${MAKE} -r -f ${MAKEFILE} dollars_stage_2 DOLLARS='$$$${varname}'
+
+dollars_stage_2:
+       @echo 'stage 2: dollars=<${DOLLARS}>'
+       ${MAKE} -r -f ${MAKEFILE} dollars_stage_3
+
+dollars_stage_3:
+       @echo 'stage 3: dollars=<${DOLLARS}>'