Problem when expanding struct _SheetObject

[Eduardo Silva <edsiper gmail com>]

hi, 

i am adding some tweaks on gnumeric 1.12 specifically on struct _SheetObject but on compile time looks like validations are failing with the following message:

GLib-GObject-WARNING **: specified instance size for type 'GnmCellCombo' is smaller than the parent type's 'SheetObject' instance size

GnmCellCombo is defined as follows:

 typedef struct { 

SheetObject parent;

SheetView       *sv;

 } GnmCellCombo;

why is complaining about instance size ?, any hints are appreciated, 

regards, 

--

Eduardo Silva
http://edsiper.linuxchile.cl
http://monkey-project.com