21 lines
801 B
Makefile
21 lines
801 B
Makefile
# $NetBSD: cond-eof.mk,v 1.2 2020/12/14 20:28:09 rillig Exp $
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#
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# Tests for parsing conditions, especially the end of such conditions, which
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# are represented as the token TOK_EOF.
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SIDE_EFFECT= ${:!echo 'side effect' 1>&2!}
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SIDE_EFFECT2= ${:!echo 'side effect 2' 1>&2!}
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# In the following conditions, ${SIDE_EFFECT} is the position of the first
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# parse error. It is always fully evaluated, even if it were not necessary
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# to expand the variable expression. This is because these syntax errors are
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# an edge case that does not occur during normal operation, therefore there
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# is no need to optimize for this case, and it would slow down the common
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# case as well.
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.if 0 ${SIDE_EFFECT} ${SIDE_EFFECT2}
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.endif
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.if 1 ${SIDE_EFFECT} ${SIDE_EFFECT2}
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.endif
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.if (0) ${SIDE_EFFECT} ${SIDE_EFFECT2}
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.endif
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