--- /home/mad/ardour-2.8.14/SConstruct      2012-11-21 00:30:54.000000000 +0100
+++ SConstruct  2012-11-21 17:34:02.000000000 +0100
@@ -955,7 +961,9 @@
 # FLAC ....
 #

-# boost (we don't link against boost, just use some header files)
+# boost (we need to link against boost with >=1.50. header files alone will not work anymore)
+
+env.Append(LIBS=['boost_system'])

 libraries['boost'] = LibraryInfo ()
 prep_libcheck(env, libraries['boost'])