From a5418d62f79f7d59f6b0a7efc88dcd7e99c8248a Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 27 Oct 2023 07:22:00 +0200
Subject: WIP: install: file_rule::reapply_impl()

---
 libbuild2/cc/install-rule.cxx | 34 ++++++++++++++++++++++------------
 1 file changed, 22 insertions(+), 12 deletions(-)

(limited to 'libbuild2/cc/install-rule.cxx')

diff --git a/libbuild2/cc/install-rule.cxx b/libbuild2/cc/install-rule.cxx
index fff3bdf..f6e6b71 100644
--- a/libbuild2/cc/install-rule.cxx
+++ b/libbuild2/cc/install-rule.cxx
@@ -259,7 +259,9 @@ namespace build2
         }
       }
 
-      recipe r (file_rule::apply_impl (a, t, me));
+      recipe r (file_rule::apply_impl (
+                  a, t, me,
+                  me.cur_options != match_extra::all_options /* reapply */));
 
       if (r == nullptr)
       {
@@ -326,26 +328,34 @@ namespace build2
            << ' ' << me.cur_options
            << ' ' << me.new_options; // @@ TMP
 
-      // If we are rematched with the buildtime option, propagate it to our
-      // prerequisite libraries.
+      me.cur_options |= me.new_options;
+
+      // We also need to update options in install_match_data.
       //
+      t.data<install_match_data> (a).options = me.cur_options;
+
       if ((me.new_options & lib::option_install_buildtime) != 0)
       {
+        // If we are rematched with the buildtime option, propagate it to our
+        // prerequisite libraries.
+        //
         for (const target* pt: t.prerequisite_targets[a])
         {
           if (pt != nullptr && (pt->is_a<liba> ()  || pt->is_a<libs> () ||
                                 pt->is_a<libua> () || pt->is_a<libus> ()))
-            rematch_sync (a, *pt, lib::option_install_buildtime);
+          {
+            // Go for all options instead of just install_buildtime to avoid
+            // any further relocking/reapply (we only support runtime-only or
+            // everything).
+            //
+            rematch_sync (a, *pt, match_extra::all_options);
+          }
         }
-      }
-
-      // @@ TODO: match additional prerequisites if required.
-
-      me.cur_options |= me.new_options;
 
-      // We also need to update options in install_match_data.
-      //
-      t.data<install_match_data> (a).options = me.cur_options;
+        // Also match any additional prerequisites (e.g., headers).
+        //
+        file_rule::reapply_impl (a, t, me);
+      }
     }
 
     bool install_rule::
-- 
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