use interpreter::feval instead of global feval function * __eigs__.cc, bsxfun.cc, call-stack.cc, cellfun.cc, daspk.cc, dasrt.cc, dassl.cc, data.cc, defun.cc, gh-manager.cc, graphics.cc, gtk-manager.cc, gtk-manager.h, hook-fcn.cc, input.cc, interpreter.cc, ls-mat5.cc, lsode.cc, mex.cc, pr-output.cc, quad.cc, quadcc.cc, variables.cc, __init_fltk__.cc, __init_gnuplot__.cc, __ode15__.cc, audiodevinfo.cc, cdef-method.cc, cdef-package.cc, cdef-property.cc, ov-class.cc, ov-java.cc, ov-oncleanup.cc, op-class.cc, pt-assign.cc, pt-eval.cc, pt-id.cc: Change all uses of global feval function to use interpreter::feval instead. If necessary, use __get_interpreter__ to access global interpreter object.

--- a/libinterp/corefcn/interpreter.cc	Thu Jan 12 08:40:45 2023 -0500
+++ b/libinterp/corefcn/interpreter.cc	Thu Jan 12 10:22:04 2023 -0500
@@ -473,7 +473,7 @@
     m_child_list (),
     m_url_handle_manager (),
     m_cdef_manager (*this),
-    m_gtk_manager (),
+    m_gtk_manager (*this),
     m_event_manager (*this),
     m_gh_manager (nullptr),
     m_interactive (false),