Including again Rtypes.h (#5669)

pzhristov · hristov · web-flow · commit 782b83ad0fcb · 2021-03-10T14:22:03.000+01:00
Co-authored-by: hristov &lt;peter.Hristov@cern.ch&gt;
diff --git a/Detectors/HMPID/base/include/HMPIDBase/Geo.h b/Detectors/HMPID/base/include/HMPIDBase/Geo.h
@@ -18,6 +18,7 @@
 #define ALICEO2_HMPID_GEO_H
 
 #include <TMath.h>
+#include <Rtypes.h>
 
 namespace o2
 {
