bug#30494: 25.2; (setting-constant nil) error in sql.el

[Pierre Téchoueyres]

pierre.techoueyres@free.fr (Pierre Téchoueyres) writes:

> Noam Postavsky <npostavs@gmail.com> writes:
>
>> tags 30494 + confirmed easy
>> quit
>>
>> sciamano@yandex.ru writes:
>>
>>> In 'emacs -Q' executing it step-by-step:
>>>
>>> (require 'sql)
>>>
>>> (sql-add-product 'xyz "XyzDB"
>>>                  '(:free-software t))
>>>
>>> (defcustom my-sql-xyz-program "ixyz"
>>>   "Command to start ixyz by XyzDB."
>>>   :type 'file
>>>   :group 'SQL)
>>>
>>> ;; NEXT STEP FAILS WITH:
>>> ;; Debugger entered--Lisp error: (setting-constant nil)
>>> ;;  sql-set-product-feature(xyz :sqli-program my-sql-xyz-program)
>>> ;;  eval((sql-set-product-feature (quote xyz) :sqli-program (quote 
>>> my-sql-xyz-program)) nil)
>>> (sql-set-product-feature 'xyz
>>>                          :sqli-program 'my-sql-xyz-program)
>>
>> Looks like it's probably just a missing nil check in
>> sql-set-product-feature.
>>
>
> Does the attached patch do the trick ?
>
Any interrest on this ?