diff options
Diffstat (limited to 'unit-tests/depsrc-precious.mk')
| -rw-r--r-- | unit-tests/depsrc-precious.mk | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/unit-tests/depsrc-precious.mk b/unit-tests/depsrc-precious.mk index 699b83d767b1..e8522a300790 100644 --- a/unit-tests/depsrc-precious.mk +++ b/unit-tests/depsrc-precious.mk @@ -1,6 +1,14 @@ -# $NetBSD: depsrc-precious.mk,v 1.2 2020/08/16 14:25:16 rillig Exp $ +# $NetBSD: depsrc-precious.mk,v 1.3 2020/11/15 20:20:58 rillig Exp $ # -# Tests for the special source .PRECIOUS in dependency declarations. +# Tests for the special source .PRECIOUS in dependency declarations, which +# is only relevant if the commands for the target fail or are interrupted. +# In such a case, the target file is usually removed, to avoid having +# half-finished files with a timestamp suggesting the file were up-to-date. +# +# For targets marked with .PRECIOUS, the target file is not removed. +# The author of the makefile is then responsible for avoiding the above +# situation, in which the target would be wrongly considered up-to-date, +# just because its timestamp says so. # TODO: Implementation |