--- libnacl/__init__.py.orig	2014-11-03 16:03:12.000000000 +1100
+++ libnacl/__init__.py	2019-02-08 14:09:29.000000000 +1100
@@ -37,7 +37,7 @@
             raise OSError(msg)
     elif sys.platform.startswith('darwin'):
         try:
-            return ctypes.cdll.LoadLibrary('libsodium.dylib')
+            return ctypes.cdll.LoadLibrary('__PREFIX__/lib/libsodium.dylib')
         except OSError:
             pass
         try:
