diff -r 91d194b6a6bd setup.py
--- a/setup.py	Sat Sep 17 15:29:49 2016 +0200
+++ b/setup.py	Mon May 29 07:30:24 2017 +0000
@@ -13,7 +13,6 @@
 
 if sys.platform.startswith('linux'):
     define_macros = [('HAVE_CLOCK_GETTIME', '1'),
-                     ('HAVE_LIBRT', '1'),
                      ('HAVE_POSIX_MEMALIGN', '1'),
                      ('HAVE_STRUCT_SYSINFO', '1'),
                      ('HAVE_STRUCT_SYSINFO_MEM_UNIT', '1'),
@@ -21,7 +20,7 @@
                      ('HAVE_SYSINFO', '1'),
                      ('HAVE_SYS_SYSINFO_H', '1'),
                      ('_FILE_OFFSET_BITS', '64')]
-    libraries = ['crypto', 'rt']
+    libraries = ['crypto']
     CFLAGS.append('-O2')
 elif sys.platform.startswith('win32'):
     define_macros = [('inline', '__inline')]