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-rw-r--r--libbuild2/bin/utility.cxx4
1 files changed, 3 insertions, 1 deletions
diff --git a/libbuild2/bin/utility.cxx b/libbuild2/bin/utility.cxx
index 2a87bbd..a03ea50 100644
--- a/libbuild2/bin/utility.cxx
+++ b/libbuild2/bin/utility.cxx
@@ -89,7 +89,9 @@ namespace build2
// Make sure group members are resolved.
//
group_view gv (resolve_members (a, l));
- assert (gv.members != nullptr);
+
+ if (gv.members == nullptr)
+ fail << "group " << l << " has no members";
pair<otype, bool> p (
link_member (lmembers {l.a != nullptr, l.s != nullptr}, li.order));