diff -Naur imagecodecs-2020.5.30_orig/imagecodecs/zopfli.pxd imagecodecs-2020.5.30/imagecodecs/zopfli.pxd
--- imagecodecs-2020.5.30_orig/imagecodecs/zopfli.pxd	2020-05-31 15:06:11.000000000 +0200
+++ imagecodecs-2020.5.30/imagecodecs/zopfli.pxd	2020-10-11 22:25:41.503288300 +0200
@@ -4,7 +4,7 @@
 # Cython declarations for the `Zopfli 1.0.3` library.
 # https://github.com/google/zopfli
 
-cdef extern from 'zopfli/zopfli.h':
+cdef extern from 'zopfli.h':
 
     ctypedef struct ZopfliOptions:
         int verbose