Index: /trunk/libffado/SConstruct
===================================================================
--- /trunk/libffado/SConstruct (revision 778)
+++ /trunk/libffado/SConstruct (revision 780)
@@ -322,4 +322,5 @@
 # ensure that the config.h is updated with the version
 env.Depends( "config.h", "SConstruct" )
+env.Depends( "config.h", 'cache/' + build_base + "options.cache" )
 
 pkgconfig = env.ScanReplace( "libffado.pc.in" )