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-rw-r--r--libbuild2/target.cxx5
1 files changed, 3 insertions, 2 deletions
diff --git a/libbuild2/target.cxx b/libbuild2/target.cxx
index 2a134a4..1a72788 100644
--- a/libbuild2/target.cxx
+++ b/libbuild2/target.cxx
@@ -188,9 +188,10 @@ namespace build2
// Skip looking up in the ad hoc group, which is semantically the
// first/primary member.
//
- if ((g1 = group == nullptr
+ const target* g (group); // Atomic.
+ if ((g1 = g == nullptr
? nullptr
- : group->adhoc_group () ? group->group : group))
+ : g->adhoc_group () ? static_cast<const target*> (g->group) : g))
{
auto p (g1->vars.lookup (var));
if (p.first != nullptr)