[src/trunk]: src/usr.bin/make/unit-tests make(1): add test for MAKEFILE after...

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

details:   https://anonhg.NetBSD.org/src/rev/c4d047044526
branches:  trunk
changeset: 956904:c4d047044526
user:      rillig <rillig%NetBSD.org@localhost>
date:      Mon Nov 09 22:36:44 2020 +0000

description:
make(1): add test for MAKEFILE after reading all files

diffstat:

 usr.bin/make/unit-tests/varname-makefile.exp |  1 +
 usr.bin/make/unit-tests/varname-makefile.mk  |  9 +++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r 99849596aaee -r c4d047044526 usr.bin/make/unit-tests/varname-makefile.exp
--- a/usr.bin/make/unit-tests/varname-makefile.exp      Mon Nov 09 20:57:36 2020 +0000
+++ b/usr.bin/make/unit-tests/varname-makefile.exp      Mon Nov 09 22:36:44 2020 +0000
@@ -1,1 +1,2 @@
+: In the end, MAKEFILE is /dev/null.
 exit status 0
diff -r 99849596aaee -r c4d047044526 usr.bin/make/unit-tests/varname-makefile.mk
--- a/usr.bin/make/unit-tests/varname-makefile.mk       Mon Nov 09 20:57:36 2020 +0000
+++ b/usr.bin/make/unit-tests/varname-makefile.mk       Mon Nov 09 22:36:44 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: varname-makefile.mk,v 1.2 2020/09/05 06:25:38 rillig Exp $
+# $NetBSD: varname-makefile.mk,v 1.3 2020/11/09 22:36:44 rillig Exp $
 #
 # Tests for the special MAKEFILE variable, which contains the current
 # makefile from the -f command line option.
@@ -41,4 +41,9 @@
 .endif
 
 all:
-       @:;
+       # MAKEFILE is the file that appeared last in the command line.
+       : In the end, MAKEFILE is ${MAKEFILE}.
+
+# Additional makefiles can be added while reading a makefile.  They will be
+# read in order.
+.MAKEFLAGS: -f /dev/null