--- octave-4.0.3/libinterp/link-deps.mk.orig
+++ octave-4.0.3/libinterp/link-deps.mk
@@ -10,6 +10,7 @@
   $(FT2_LIBS) \
   $(HDF5_LIBS) \
   $(MAGICK_LIBS) \
+  $(Z_LIBS) \
   $(FFTW_XLIBS) \
   $(OPENGL_LIBS) \
   $(X11_LIBS) \