diff -r 9a7fa841f12e -r a6d8b93441b0 compiler/PPCClassBuilder.st
--- a/compiler/PPCClassBuilder.st	Mon Aug 17 13:39:38 2015 +0100
+++ b/compiler/PPCClassBuilder.st	Mon Aug 17 23:11:56 2015 +0100
@@ -10,6 +10,7 @@
 	category:'PetitCompiler-Core'
 !
 
+
 !PPCClassBuilder class methodsFor:'instance creation'!
 
 new
@@ -77,7 +78,7 @@
     (compiledClass methodDictionary size == 0) ifTrue: [ ^ self ].
 
     "this is hack, but might help the performance..."
-    (compiledClass methods allSatisfy: [:m | m category beginsWith: 'generated']) ifTrue: [
+    (compiledClass methodDictionary values allSatisfy: [:m | m category beginsWith: 'generated']) ifTrue: [
         compiledClass removeFromSystem.
         compiledClass := nil.
         ^ self
@@ -91,19 +92,21 @@
             ]
         ]
     ] ifFalse: [ 
-"		compiledClass methodsDo: [ :mthd |
+"               compiledClass methodsDo: [ :mthd |
             (mthd category beginsWith: 'generated') ifTrue:[
                 compiledClass removeSelector: mthd selector.
             ]
         ]
 "
-"		Too slow, but more stable :("
+"               Too slow, but more stable :("
         (compiledClass allProtocolsUpTo: compiledClass) do: [ :protocol |
             (protocol beginsWith: 'generated') ifTrue: [ 
                 compiledClass removeProtocol: protocol.
-            ]		
+            ]           
         ]
     ]
+
+    "Modified: / 17-08-2015 / 13:55:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"
 ! !
 
 !PPCClassBuilder methodsFor:'compiling'!
@@ -133,14 +136,27 @@
     instvarString := instvars inject: '' into: [:r :e | r, ' ', e  ].
     classvarString := constants keys inject: '' into: [:r :e | r, ' ', e  ].
 
-    compiledSuperclass 
-        subclass: compiledClassName  
-        instanceVariableNames: instvarString 
-        classVariableNames: classvarString 
-        poolDictionaries: '' 
-        category: 'PetitCompiler-Generated'.
+    ((Smalltalk respondsTo:#isSmalltalkX) and:[Smalltalk isSmalltalkX]) ifTrue:[
+        [
+            compiledSuperclass 
+                subclass: compiledClassName  
+                instanceVariableNames: instvarString 
+                classVariableNames: classvarString 
+                poolDictionaries: '' 
+                category: 'PetitCompiler-Generated'.
+        ] on: ClassBuildWarning do:[:ex | ex proceed ].
+    ] ifFalse:[
+        compiledSuperclass 
+            subclass: compiledClassName  
+            instanceVariableNames: instvarString 
+            classVariableNames: classvarString 
+            poolDictionaries: '' 
+            category: 'PetitCompiler-Generated'.
+    ].
 
     compiledClass := Smalltalk at: compiledClassName.
+
+    "Modified: / 17-08-2015 / 14:44:38 / Jan Vrany <jan.vrany@fit.cvut.cz>"
 !
 
 registerPackages
@@ -179,3 +195,10 @@
     self registerPackages.
 ! !
 
+!PPCClassBuilder class methodsFor:'documentation'!
+
+version_HG
+
+    ^ '$Changeset: <not expanded> $'
+! !
+