https://bugs.gentoo.org/735352

--- 0ad-0.0.25/source/scriptinterface/ScriptContext.cpp-
+++ 0ad-0.0.25/source/scriptinterface/ScriptContext.cpp
@@ -143,7 +143,7 @@ void ScriptContext::UnRegisterRealm(JS::
 	// Schedule the zone for GC, which will destroy the realm.
 	if (JS::IsIncrementalGCInProgress(m_cx))
 		JS::FinishIncrementalGC(m_cx, JS::GCReason::API);
-	JS::PrepareZoneForGC(js::GetRealmZone(realm));
+	JS::PrepareZoneForGC(m_cx, js::GetRealmZone(realm));
 	m_Realms.remove(realm);
 }
 
@@ -261,5 +261,5 @@ void ScriptContext::ShrinkingGC()
 void ScriptContext::PrepareZonesForIncrementalGC() const
 {
 	for (JS::Realm* const& realm : m_Realms)
-		JS::PrepareZoneForGC(js::GetRealmZone(realm));
+		JS::PrepareZoneForGC(m_cx, js::GetRealmZone(realm));
 }