You `(require 'sclang)` cause error on `(require 'sclang-vars)` failed. 
Because there is no file `sclang-vars.el`. Only file `sclang-vars.el.in` 
for built-time defaults. When user load sclang from source code of 
`scel`. This will cause error.

Really don't understand why you have to `(require 'sclang)` instead of 
`(require 'sclang-interp)`? Can you tell me why?


On 03/25/2018 07:27 AM, Maxim Cournoyer wrote:
> Hello!
>
> The attached patch fixes a byte compilation issue in ob-sclang.el.
>
> Thank you!
>
> Maxim
>