Revert "scons: Debug build by default."

Per Brian's request.

This reverts commit 25f0c33bb3.

common.py

@@ -53,7 +53,7 @@ def AddOptions(opts):
 		from SCons.Variables.EnumVariable import EnumVariable as EnumOption
 	except ImportError:
 		from SCons.Options.EnumOption import EnumOption
-	opts.Add(BoolOption('debug', 'debug build', 'yes'))
+	opts.Add(BoolOption('debug', 'debug build', 'no'))
 	opts.Add(BoolOption('profile', 'profile build', 'no'))
 	opts.Add(BoolOption('quiet', 'quiet command lines', 'yes'))
 	opts.Add(EnumOption('machine', 'use machine-specific assembly code', default_machine,

scons/generic.py

@@ -264,7 +264,7 @@ def generate(env):
         pass
 
     # Build type
-    env['debug'] = _bool_map[ARGUMENTS.get('debug', 'yes')]
+    env['debug'] = _bool_map[ARGUMENTS.get('debug', 'no')]
     env['profile'] = _bool_map[ARGUMENTS.get('profile', 'no')]
 
     # Put build output in a separate dir, which depends on the current