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-rw-r--r--build2/algorithm.cxx1
1 files changed, 1 insertions, 0 deletions
diff --git a/build2/algorithm.cxx b/build2/algorithm.cxx
index 0e57c08..4e76e4a 100644
--- a/build2/algorithm.cxx
+++ b/build2/algorithm.cxx
@@ -879,6 +879,7 @@ namespace build2
// Decrement the target count (see set_recipe() for details).
//
+ if (a.inner ())
{
recipe_function** f (s.recipe.target<recipe_function*> ());
if (f == nullptr || *f != &group_action)