diff -ru fceu2.1.4a/SConstruct fceu2.1.4a.new/SConstruct
--- fceu2.1.4a/SConstruct	2010-03-31 05:41:39.000000000 +0200
+++ fceu2.1.4a.new/SConstruct	2010-06-15 10:21:30.615000002 +0200
@@ -7,10 +7,10 @@
   BoolVariable('FRAMESKIP', 'Enable frameskipping', 1),
   BoolVariable('OPENGL',    'Enable OpenGL support', 1),
   BoolVariable('LSB_FIRST', 'Least signficant byte first (non-PPC)', 1),
-  BoolVariable('DEBUG',     'Build with debugging symbols', 1),
+  BoolVariable('DEBUG',     'Build with debugging symbols', 0),
   BoolVariable('LUA',       'Enable Lua support', 1),
   BoolVariable('NEWPPU',    'Enable new PPU core', 1),
-  BoolVariable('CREATE_AVI', 'Enable avi creation support (SDL only)', 0),
+  BoolVariable('CREATE_AVI', 'Enable avi creation support (SDL only)', 1),
   BoolVariable('LOGO', 'Enable a logoscreen when creating avis (SDL only)', '1'),
   BoolVariable('GTK', 'Enable GTK2 GUI (SDL only)', 1),
   BoolVariable('GTK_LITE', 'Enable GTK2 for dialogs only', 0)
@@ -23,7 +23,7 @@
   env['LSB_FIRST'] = 0
 
 # Default compiler flags:
-env.Append(CCFLAGS = ['-Wall', '-Wno-write-strings', '-Wno-sign-compare', '-O2', '-Isrc/lua/src'])
+env.Append(CCFLAGS = ['-Wall', '-Wno-write-strings', '-Wno-sign-compare', '-O2', '-march=i486', '-mtune=i686', '-Isrc/lua/src'])
 
 if os.environ.has_key('PLATFORM'):
   env.Replace(PLATFORM = os.environ['PLATFORM'])