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      1 # $NetBSD: varmod-to-abs.mk,v 1.6 2023/06/01 20:56:35 rillig Exp $
      2 #
      3 # Tests for the :tA variable modifier, which returns the absolute path for
      4 # each of the words in the variable value.
      5 
      6 # TODO: Implementation
      7 
      8 # Between 2016-06-03 and 2020-11-14, it was possible to trick the :tA modifier
      9 # into resolving completely unrelated absolute paths by defining a global
     10 # variable with the same name as the path that is to be resolved.  There were
     11 # a few restrictions though: The "redirected" path had to start with a slash,
     12 # and it had to exist (see ModifyWord_Realpath).
     13 #
     14 # This unintended behavior was caused by cached_realpath using a GNode for
     15 # keeping the cache, just like the GNode for global variables.
     16 .MAKEFLAGS: -dd
     17 does-not-exist.c=	/dev/null
     18 # expect+1: does-not-exist.c
     19 .info ${does-not-exist.c:L:tA}
     20 # expect+1: does-not-exist.c
     21 .info ${does-not-exist.c:L:tA}
     22 
     23 # The output of the following line is modified by the global _SED_CMDS in
     24 # unit-tests/Makefile.  See the .rawout file for the truth.
     25 # expect+1: varmod-to-abs.mk
     26 .info ${MAKEFILE:tA}
     27 
     28 .MAKEFLAGS: -d0
     29 
     30 all:
     31 	@:;
     32