commit aecb496ba1b9cc8c2d3ca479b7c949418909f520
Author: Philippe Makowski <pmakowski@espelida.com>
Date:   Sun Jul 3 14:01:36 2016 +0200

    module-linkage

diff --git a/setup.py b/setup.py
index 174ce72..280766a 100644
--- a/setup.py
+++ b/setup.py
@@ -616,7 +616,7 @@ class PyBuildExt(build_ext):
                                libraries=math_libs) )
 
         # time libraries: librt may be needed for clock_gettime()
-        time_libs = []
+        time_libs = ['m']
         lib = sysconfig.get_config_var('TIMEMODULE_LIB')
         if lib:
             time_libs.append(lib)
@@ -1975,7 +1975,7 @@ class PyBuildExt(build_ext):
                         include_dirs=include_dirs,
                         extra_compile_args=extra_compile_args,
                         extra_link_args=extra_link_args,
-                        libraries=[],
+                        libraries=['m', 'dl'],
                         sources=sources,
                         depends=depends)
         # function my_sqrt() needs math library for sqrt()
@@ -2031,7 +2031,7 @@ class PyBuildExt(build_ext):
                                                          'Modules',
                                                          '_decimal',
                                                          'libmpdec'))]
-            libraries = []
+            libraries = ['m']
             sources = [
               '_decimal/_decimal.c',
               '_decimal/libmpdec/basearith.c',