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-rw-r--r--libbuild2/context.hxx6
1 files changed, 4 insertions, 2 deletions
diff --git a/libbuild2/context.hxx b/libbuild2/context.hxx
index 1483eb3..ef628c9 100644
--- a/libbuild2/context.hxx
+++ b/libbuild2/context.hxx
@@ -441,8 +441,10 @@ namespace build2
//
// Valid values are `true` and `false`. Additionally, some rules (and
// potentially only for certain types of prerequisites) may support the
- // `unmatch` (match but do not update, if possible) and `match` (update
- // during match) values. Note that if unmatch is impossible, then the
+ // `unmatch` (match but do not update, if possible), `match` (update
+ // during match), and `execute` (update during execute, as is normally)
+ // values (the `execute` value may be useful if the rule has the `match`
+ // semantics by default). Note that if unmatch is impossible, then the
// prerequisite is treated as ad hoc.
//
const variable* var_update;