Add commented out THROW() macro

emper/Common.hpp

@@ -12,6 +12,9 @@ typedef std::function<void(void)> func_t;
 #define DIE_MSG(x) die(__FILE__ ":" TOSTRING(__LINE__) " " #x, false)
 #define DIE_MSG_ERRNO(x) die(__FILE__ ":" TOSTRING(__LINE__) " " #x, true)
 
+// We compile with -fno-exceptions for the moment.
+//#define THROW(x) do { throw std::runtime_error(x); } while (false)
+
 #define likely(x)       __builtin_expect(!!(x),1)
 #define unlikely(x)     __builtin_expect(!!(x),0)