void

recolor_wheel_nodes_init(GtkWidget *widget , int obj_list_size = RECOLOR_MAX_OBJECTS ) { ..... }

This gives the following error: 

expected ';', ',' or ')' before '='  token

Aren't default arguments allowed in GTK ? I bet I've seen them at a few places in the codebase before.

-- 

Arshdeep Singh
Third Year, Computer Engineering
Delhi Technological University
Ph: +91-9654115614
https://sites.google.com/site/adsingh1729/home