diff options
Diffstat (limited to 'unit-tests/cond-late.mk')
| -rw-r--r-- | unit-tests/cond-late.mk | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/unit-tests/cond-late.mk b/unit-tests/cond-late.mk index 397f5febd4802..4df3df2cf1d42 100644 --- a/unit-tests/cond-late.mk +++ b/unit-tests/cond-late.mk @@ -1,7 +1,9 @@ -# $NetBSD: cond-late.mk,v 1.2 2020/07/25 20:37:46 rillig Exp $ +# $NetBSD: cond-late.mk,v 1.3 2020/11/15 14:07:53 rillig Exp $ # # Using the :? modifier, variable expressions can contain conditional -# expressions that are evaluated late. Any variables appearing in these +# expressions that are evaluated late, at expansion time. +# +# Any variables appearing in these # conditions are expanded before parsing the condition. This is # different from many other places. # @@ -11,15 +13,15 @@ # They should also not contain operators like == or <, since these are # actually interpreted as these operators. This is demonstrated below. # -# If the order of evaluation were to change to first parse the condition -# and then expand the variables, the output would change from the -# current "yes no" to "yes yes", since both variables are non-empty. all: cond-literal COND.true= "yes" == "yes" COND.false= "yes" != "yes" +# If the order of evaluation were to change to first parse the condition +# and then expand the variables, the output would change from the +# current "yes no" to "yes yes", since both variables are non-empty. cond-literal: @echo ${ ${COND.true} :?yes:no} @echo ${ ${COND.false} :?yes:no} |