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Diffstat (limited to 'unit-tests/varmod-to-abs.mk')
| -rw-r--r-- | unit-tests/varmod-to-abs.mk | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/unit-tests/varmod-to-abs.mk b/unit-tests/varmod-to-abs.mk index 7a74e89088e5..7f23318487e3 100644 --- a/unit-tests/varmod-to-abs.mk +++ b/unit-tests/varmod-to-abs.mk @@ -1,9 +1,28 @@ -# $NetBSD: varmod-to-abs.mk,v 1.2 2020/08/16 14:25:16 rillig Exp $ +# $NetBSD: varmod-to-abs.mk,v 1.5 2020/11/15 05:48:17 rillig Exp $ # # Tests for the :tA variable modifier, which returns the absolute path for # each of the words in the variable value. # TODO: Implementation +# Between 2016-06-03 and 2020-11-14, it was possible to trick the :tA modifier +# into resolving completely unrelated absolute paths by defining a global +# variable with the same name as the path that is to be resolved. There were +# a few restrictions though: The "redirected" path had to start with a slash, +# and it had to exist (see ModifyWord_Realpath). +# +# This unintended behavior was caused by cached_realpath using a GNode for +# keeping the cache, just like the GNode for global variables. +.MAKEFLAGS: -dd +does-not-exist.c= /dev/null +.info ${does-not-exist.c:L:tA} +.info ${does-not-exist.c:L:tA} + +# The output of the following line is modified by the global _SED_CMDS in +# unit-tests/Makefile. See the .rawout file for the truth. +.info ${MAKEFILE:tA} + +.MAKEFLAGS: -d0 + all: @:; |