From 76be0a35f6c37cda7ba65530330f1ac246fb52a8 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 6 Apr 2022 11:26:52 +0200
Subject: Add support for rule hints

A rule hint is a target attribute, for example:

[rule_hint=cxx] exe{hello}: c{hello}

Rule hints can be used to resolve ambiguity when multiple rules match the same
target as well as to override an unambiguous match.
---
 libbuild2/dist/init.cxx | 2 +-
 libbuild2/dist/rule.cxx | 2 +-
 libbuild2/dist/rule.hxx | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'libbuild2/dist')

diff --git a/libbuild2/dist/init.cxx b/libbuild2/dist/init.cxx
index 2be4c3f..8837f77 100644
--- a/libbuild2/dist/init.cxx
+++ b/libbuild2/dist/init.cxx
@@ -188,7 +188,7 @@ namespace build2
       // something like insert<target>(dist_id, test_id) taking precedence.
       //
       rs.insert_rule<target> (dist_id, 0, "dist",       rule_);
-      rs.insert_rule<alias>  (dist_id, 0, "dist.alias", rule_); //@@ outer?
+      rs.insert_rule<alias>  (dist_id, 0, "dist.alias", rule_);
 
       // Configuration.
       //
diff --git a/libbuild2/dist/rule.cxx b/libbuild2/dist/rule.cxx
index ef144d0..76d11c9 100644
--- a/libbuild2/dist/rule.cxx
+++ b/libbuild2/dist/rule.cxx
@@ -15,7 +15,7 @@ namespace build2
   namespace dist
   {
     bool rule::
-    match (action, target&, const string&) const
+    match (action, target&) const
     {
       return true; // We always match.
     }
diff --git a/libbuild2/dist/rule.hxx b/libbuild2/dist/rule.hxx
index e63016d..a864015 100644
--- a/libbuild2/dist/rule.hxx
+++ b/libbuild2/dist/rule.hxx
@@ -29,7 +29,7 @@ namespace build2
       rule () {}
 
       virtual bool
-      match (action, target&, const string&) const override;
+      match (action, target&) const override;
 
       virtual recipe
       apply (action, target&) const override;
-- 
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