--- unbound-1.5.7/acx_python.m4.orig	2014-09-19 11:57:20.000000000 +0200
+++ unbound-1.5.7/acx_python.m4	2016-03-02 07:58:16.255669696 +0100
@@ -65,7 +65,7 @@
         AC_MSG_CHECKING([for Python site-packages path])
         if test -z "$PYTHON_SITE_PKG"; then
                 PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \
-                        print(distutils.sysconfig.get_python_lib(1,0));"`
+                        print(distutils.sysconfig.get_python_lib(1,0, prefix='${prefix}'));"`
         fi
         AC_MSG_RESULT([$PYTHON_SITE_PKG])
         AC_SUBST([PYTHON_SITE_PKG])