Hello,
I don't seem to be able to use the UDFs in my Firebird installation.
For example when I call the abs() function defined in the ib_udf
library , I always get error

SQL error code = -804.
Function unknown. ABS.

This function is declared properly in the ib_udf.sql, firebird.conf
has the default UdfAccess = Restrict UDF

Do I miss something?

Thank you, Antonin