diff -rupN ardouroriginal/libs/ardour/wscript ardour-3.5.403/libs/ardour/wscript
--- ardouroriginal/libs/ardour/wscript	2014-10-24 19:18:10.981000000 +0200
+++ ardour-3.5.403/libs/ardour/wscript	2014-10-24 19:19:36.115000000 +0200
@@ -385,7 +385,7 @@ def build(bld):
     if bld.is_defined('AUDIOUNIT_SUPPORT'):
         obj.source += [ 'audio_unit.cc' ]
 
-    if Options.options.fpu_optimization:
+    if bld.env['FPU_OPTIMIZATION']:
         if (bld.env['build_target'] == 'i386' or bld.env['build_target'] == 'i686'):
             obj.source += [ 'sse_functions_xmm.cc', 'sse_functions.s' ]
         elif bld.env['build_target'] == 'x86_64':
diff -rupN ardouroriginal/wscript ardour-3.5.403/wscript
--- ardouroriginal/wscript	2014-10-24 19:18:10.989000000 +0200
+++ ardour-3.5.403/wscript	2014-10-24 19:20:20.160000000 +0200
@@ -675,6 +675,8 @@ def configure(conf):
         conf.env['PHONE_HOME'] = True
     if opts.fpu_optimization:
         conf.env['FPU_OPTIMIZATION'] = True
+    else:
+	conf.env['FPU_OPTIMIZATION'] = False
     if opts.nls:
         conf.define('ENABLE_NLS', 1)
         conf.env['ENABLE_NLS'] = True