Fix build bug

Author: palemieux

src/lib/OpenEXRCore/internal_ht_common.cpp

@@ -10,6 +10,7 @@
 #include <cassert>
 #include <algorithm>
 #include <cctype>
+#include <stdexcept>
 
 const std::string RED_CH_FULLNAME = "red";
 const std::string GREEN_CH_FULLNAME = "green";