Add some compatibility code for older root versions that don't have the

TClonesArray ConstructedAt method.

src/THcHitList.cxx

@@ -11,6 +11,8 @@
 //////////////////////////////////////////////////////////////////////////
 
 #include "THcHitList.h"
+#include "TError.h"
+#include "TClass.h"
 
 using namespace std;
 
@@ -35,7 +37,15 @@ void THcHitList::InitHitList(THaDetMap* detmap,
   fNMaxRawHits = maxhits;
   fNRawHits = 0;
   for(Int_t i=0;i<maxhits;i++) {
+#if ROOT_VERSION_CODE >= ROOT_VERSION(5,32,0)
     fRawHitList->ConstructedAt(i);
+#else
+  // The essence of the ConstructedAt code explictly
+    TObject* obj = (*fRawHitList)[i];
+    R__ASSERT( obj );  // should never happen ...
+    if( !obj->TestBit(TObject::kNotDeleted) )
+      fRawHitClass->New(obj);
+#endif
   }
   
   fdMap = detmap;