diff --git a/SConstruct b/SConstruct
index d84fb1bd4..5e463723c 100644
--- a/SConstruct
+++ b/SConstruct
@@ -1432,7 +1432,7 @@ if not preconfigured:
             if env['DEBUG']:
                 env.Append(CXXFLAGS = gcc_cxx_flags + '-O0 -fno-inline %s' % debug_flags)
             else: 
-                env.Append(CXXFLAGS = gcc_cxx_flags + '-O%s -finline-functions -Wno-inline %s' % (env['OPTIMIZATION'],ndebug_flags))
+                env.Append(CXXFLAGS = gcc_cxx_flags + '-O%s -finline-functions -Wno-inline -Wno-parentheses -Wno-char-subscripts %s' % (env['OPTIMIZATION'],ndebug_flags))
 
         if 'python' in env['BINDINGS']:
             if not os.access(env['PYTHON'], os.X_OK):