How to call C functions in Version 5 ?

We've just moved to version 5 of Informix, and have come across a problem. Any light shed on this would be a great help. Basically, in an old application, one of the .per files contains a line which reads CALL lognm(). The function in question was originally written for version 2 of Informix a few years ago, when a program would have been created which linked a C module to create a .per interpreter. We've re-coded this and other routines, but can't call them from the compiled form. An error something like "The C function lognm() cannot be called as it does not exist in the "userfuncs" table " is reported. We can find neither the table nor any documented refer- ence to it. Neither can we use SQL statements such as CALL SPL or EXECUTE PROCEDURE to run stored procs from within the form, so it looks like we either find out what userfuncs is, or re-code in 4GL, ESQL or something. Does this ring any bells for anyone ? Regards, David -- David Byrne, Abacus Software, London, UK Tel: +44 (0)171 603 9877 Email: dmb@abacus.demon.co.uk Fax: +44 (0)171 603 6844 Here's a koan: If you have ice-cream I will give you some. If you have none, I will take it away from you. (it's an ice-cream koan).