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Update to bmake-20201101
[FreeBSD/FreeBSD.git] / contrib / bmake / unit-tests / varname-dot-shell.mk
1 # $NetBSD: varname-dot-shell.mk,v 1.6 2020/10/30 16:09:56 rillig Exp $
2 #
3 # Tests for the special .SHELL variable, which contains the shell used for
4 # running the commands.
5 #
6 # This variable is read-only.
7
8 .MAKEFLAGS: -dcpv
9
10 ORIG_SHELL:=    ${.SHELL}
11
12 .SHELL=         overwritten
13 .if ${.SHELL} != ${ORIG_SHELL}
14 .  error
15 .endif
16
17 # Trying to append to the variable.
18 # Since 2020-10-30 this is prevented.
19 .MAKEFLAGS: .SHELL+=appended
20 .if ${.SHELL} != ${ORIG_SHELL}
21 .  error
22 .endif
23
24 # Trying to delete the variable.
25 # This has no effect since the variable is not defined in the global context,
26 # but in the command-line context.
27 .undef .SHELL
28 .SHELL=         newly overwritten
29 .if ${.SHELL} != ${ORIG_SHELL}
30 .  error
31 .endif
32
33 .MAKEFLAGS: -d0
34
35 all:
36         @:;