2020-11-07 19:39:21 +00:00
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# $NetBSD: varname-dot-newline.mk,v 1.4 2020/10/24 08:46:08 rillig Exp $
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2020-09-05 16:11:04 +00:00
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#
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# Tests for the special .newline variable.
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#
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# Contrary to the special variable named "" that is used in expressions like
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# ${:Usome-value}, the variable ".newline" is not protected against
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# modification. Nobody exploits that though.
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NEWLINE:= ${.newline}
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.newline= overwritten
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.if ${.newline} == ${NEWLINE}
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2020-11-07 19:39:21 +00:00
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. info The .newline variable cannot be overwritten. Good.
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2020-09-05 16:11:04 +00:00
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.else
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2020-11-07 19:39:21 +00:00
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. info The .newline variable can be overwritten. Just don't do that.
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2020-09-05 16:11:04 +00:00
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.endif
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# Restore the original value.
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.newline= ${NEWLINE}
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all:
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@echo 'first${.newline}second'
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