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Source code changes of the file "unit-tests/varmod-shell.mk" between
bmake-20201101.tar.gz and bmake-20201117.tar.gz

About: bmake a BSD make tool (derived from NetBSD’s make).

varmod-shell.mk  (bmake-20201101):varmod-shell.mk  (bmake-20201117)
# $NetBSD: varmod-shell.mk,v 1.2 2020/08/16 14:25:16 rillig Exp $ # $NetBSD: varmod-shell.mk,v 1.5 2020/11/17 20:11:02 rillig Exp $
# #
# Tests for the :sh variable modifier, which runs the shell command # Tests for the :sh variable modifier, which runs the shell command
# given by the variable value and returns its output. # given by the variable value and returns its output.
#
# This modifier has been added on 2000-04-29.
#
# See also:
# ApplyModifier_ShellCommand
# TODO: Implementation # TODO: Implementation
# The command to be run is enclosed between exclamation marks.
# The previous value of the expression is irrelevant for this modifier.
# The :!cmd! modifier turns an undefined expression into a defined one.
.if ${:!echo word!} != "word"
. error
.endif
# If the command exits with non-zero, an error message is printed.
# XXX: Processing continues as usual though.
#
# Between 2000-04-29 and 2020-11-17, the error message mentioned the previous
# value of the expression (which is usually an empty string) instead of the
# command that was executed. It's strange that such a simple bug could
# survive such a long time.
.if ${:!echo word; false!} != "word"
. error
.endif
.if ${:Uprevious value:!echo word; false!} != "word"
. error
.endif
all: all:
@:; @:;
 End of changes. 3 change blocks. 
1 lines changed or deleted 27 lines changed or added

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