Fallback to loading outer buildfile if there isn't one in src_base

This covers the case where the target is defined in the outer buildfile which
is common with non-intrusive project conversions where everything is built
from a single root buildfile.

1 files changed, 2 insertions, 0 deletions

diff --git a/build2/operation.hxx b/build2/operation.hxx
index 1fc6abf..f79228b 100644
--- a/build2/operation.hxx
+++ b/build2/operation.hxx
@@ -106,6 +106,7 @@ namespace build2
     void (*search) (const values&,
                     const scope& root,
                     const scope& base,
+                    const path& buildfile,
                     const target_key&,
                     const location&,
                     action_targets&);
@@ -166,6 +167,7 @@ namespace build2
   search (const values&,
           const scope&,
           const scope&,
+          const path&,
           const target_key&,
           const location&,
           action_targets&);