[warningectomy] implicit conversion from enumeration type ...

e.g.:
standard-path.c:232:27: warning: implicit conversion from enumeration type 'MyHandleIds' to different enumeration type 'HandleId' [-Wconversion]
  obj->handles[0]->id   = _HANDLE_OBJ_POS;
                        ~ ^~~~~~~~~~~~~~~
[warningectomy] remove unused variables
[warningectomy] make _node_get_real() static

svg-import.c:184:1: warning: no previous prototype for function '_node_get_real' [-Wmissing-prototypes]
_node_get_real (xmlNodePtr node, const char *name, real defval)
^