--- setup.py	2017-04-06 11:19:47.311893148 +0100
+++ setup.py	2017-04-06 11:20:07.639160636 +0100
@@ -1,6 +1,7 @@
 import sys, os
 import subprocess
 import errno
+import sysconfig
 
 
 sources = ['c/_cffi_backend.c']
@@ -74,6 +75,10 @@
     _ask_pkg_config(library_dirs,       '--libs-only-L', '-L', sysroot=True)
     _ask_pkg_config(extra_link_args,    '--libs-only-other')
     _ask_pkg_config(libraries,          '--libs-only-l', '-l')
+    # This is needed for linking to 'dlopen', 'dlclose', 'dlsym' and 'dlerror'
+    # from _cffi_backend.c for uClibc.
+    if '-ldl' in ''.join(sysconfig.get_config_vars('LIBS')).split(' '):
+        libraries.append('dl')
 
 def use_homebrew_for_libffi():
     # We can build by setting: