CRTSQLCI - precompile error on SQL CONNECT

[SkiLift]

Does anyone know why the code below compiles ok on v4r2 but does not compile on v5r1? The error msg is below the code.

It seems to require a USING clause now, when before it did not. BTW, the last else stmt passes compile, ie, you can connect without a user or pw, so the security reason does not make sense.

SqlConnect:
        EXEC SQL WHENEVER SQLERROR goto SqlCleanup;

        if (gServerName[0] != '\0)
        {
            /* Explicit Connection */
            if (gPassword[0] != '\0')
            {
                EXEC SQL CONNECT TO :gServerName 
                USER :gUserName 
                USING :gPassword;
            }
            else if (gUserName[0] != '\0')
            {
                EXEC SQL CONNECT TO :gServerName 
                USER :gUserName; /* <-- error here */
            }
            else
            {
                EXEC SQL CONNECT TO :gServerName;
            }
        }
        else
        {
            /* Implicit Connection */
            lRetVal = eConnRetCdNone;
        }

    }
                                              DIAGNOSTIC MESSAGES               
 MSG ID  SEV  RECORD  TEXT                                                      
 SQL0104  30     111  Position 32 Token <END-OF-STATEMENT> was not valid.       
                      Valid tokens: USING.
Message Summary                 
 Total    Info    Warning    Error    Severe    Terminal                        
     1      0         0         0         1          0                          
 30 level severity errors found in source                                       
   341 Source records processed                                                 
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