diff -Naur imagecodecs-2020.5.30_orig/setup.py imagecodecs-2020.5.30/setup.py
--- imagecodecs-2020.5.30_orig/setup.py	2020-05-31 15:06:11.000000000 +0200
+++ imagecodecs-2020.5.30/setup.py	2020-10-09 15:57:46.464535100 +0200
@@ -156,11 +156,11 @@
     if 'arch' in platform.platform():
         del EXTENSIONS['zopfli']  # zopfli/zopfli.h does not exist
 
-    if sys.platform == 'win32':
-        EXTENSIONS['bz2']['libraries'] = ['libbz2']
-    else:
-        EXTENSIONS['jpeg2k']['include_dirs'] = ['/usr/include/openjpeg-2.3']
-        EXTENSIONS['jpegxr']['include_dirs'] = ['/usr/include/jxrlib']
+    # if sys.platform == 'win32':
+        # EXTENSIONS['bz2']['libraries'] = ['libbz2']
+    # else
+    EXTENSIONS['jpeg2k']['include_dirs'] = [sys.prefix + '/include/openjpeg-2.3']
+    EXTENSIONS['jpegxr']['include_dirs'] = [sys.prefix + '/include/jxrlib']
 
 
 def customize_build_cg(EXTENSIONS, OPTIONS):