diff -Naur imagecodecs-2020.12.22_orig/setup.py imagecodecs-2020.12.22/setup.py
--- imagecodecs-2020.12.22_orig/setup.py	2020-12-23 17:21:01.000000000 +0100
+++ imagecodecs-2020.12.22/setup.py	2020-12-23 16:20:21.213615700 +0100
@@ -176,7 +176,7 @@
     """Customize build for common platforms: recent Debian, arch..."""
     import platform
 
-    del EXTENSIONS['avif']  # libavif library not commonly available
+    # del EXTENSIONS['avif']  # libavif library not commonly available
     del EXTENSIONS['jpeg12']  # jpeg12 requires custom build
     del EXTENSIONS['lerc']  # LERC library not commonly available
     del EXTENSIONS['lz4f']  # requires static linking
@@ -188,13 +188,8 @@
         del EXTENSIONS['jpegxl']  # Brunsli library not commonly available
         del EXTENSIONS['zfp']  # ZFP library not commonly available
 
-    if sys.platform == 'win32':
-        EXTENSIONS['bz2']['libraries'] = ['libbz2']
-    else:
-        EXTENSIONS['jpeg2k']['include_dirs'].append(
-            '/usr/include/openjpeg-2.3'
-        )
-        EXTENSIONS['jpegxr']['include_dirs'].append('/usr/include/jxrlib')
+    EXTENSIONS['jpeg2k']['include_dirs'].append(sys.prefix + '/include/openjpeg-2.3')
+    EXTENSIONS['jpegxr']['include_dirs'].append(sys.prefix + '/include/jxrlib')
 
 
 def customize_build_cg(EXTENSIONS, OPTIONS):