--- a/Tools__ProjectBuilderAssistantApplication.st	Mon Mar 11 21:31:15 2013 +0100
+++ b/Tools__ProjectBuilderAssistantApplication.st	Mon Mar 11 21:50:09 2013 +0100
@@ -2702,55 +2702,57 @@
         ^ false
     ].
     prj := self selectedProjectDefinition.
-    ([prj startupClassName] on:Error do:nil) notNil ifFalse:[
-        self infoHolder value:'Must have a startup class'. 
-        ^ false
-    ].
-    ([prj startupSelector] on:Error do:nil) notNil ifFalse:[
-        self infoHolder value:'Must have a startup selector'. 
-        ^ false
-    ].
-    (prj class compiledMethodAt:#startupSelector) isNil ifTrue:[
-        self infoHolder value:('Inherited startup selector is "%1"' bindWith:prj startupSelector). 
-        impl := prj class whichClassImplements:#startupSelector.
-        impl isNil ifTrue:[
-            self infoHolder value:('Inherited startup selector (%1) not implemented in %2' 
-                                    bindWith:prj startupSelector
-                                    with:prj class name). 
+    prj isLibraryDefinition ifFalse:[
+        ([prj startupClassName] on:Error do:nil) notNil ifFalse:[
+            self infoHolder value:'Must have a startup class'. 
+            ^ false
+        ].
+        ([prj startupSelector] on:Error do:nil) notNil ifFalse:[
+            self infoHolder value:'Must have a startup selector'. 
             ^ false
         ].
-    ].
-    (mthd := prj class compiledMethodAt:#startupClassName) package == prj package ifFalse:[
-        mthd package == PackageId noProjectID ifFalse:[
-            self infoHolder value:('Startup class method (#startupClassName) of %3 must be in package "%1" (is in "%2")' 
-                bindWith:prj package
-                with:(prj class compiledMethodAt:#startupClassName) package
-                with:prj class name). 
-            ^ false
+        (prj class compiledMethodAt:#startupSelector) isNil ifTrue:[
+            self infoHolder value:('Inherited startup selector is "%1"' bindWith:prj startupSelector). 
+            impl := prj class whichClassImplements:#startupSelector.
+            impl isNil ifTrue:[
+                self infoHolder value:('Inherited startup selector (%1) not implemented in %2' 
+                                        bindWith:prj startupSelector
+                                        with:prj class name). 
+                ^ false
+            ].
         ].
-    ].
-    (mthd := prj class compiledMethodAt:#startupSelector) notNil ifTrue:[
-        mthd package == prj package ifFalse:[
+        (mthd := prj class compiledMethodAt:#startupClassName) package == prj package ifFalse:[
             mthd package == PackageId noProjectID ifFalse:[
-                self infoHolder value:('Startup class method (#startupSelector) of %3 must be in package "%1" (is in "%2")' 
+                self infoHolder value:('Startup class method (#startupClassName) of %3 must be in package "%1" (is in "%2")' 
                     bindWith:prj package
-                    with:mthd package 
+                    with:(prj class compiledMethodAt:#startupClassName) package
                     with:prj class name). 
                 ^ false
-            ]
+            ].
+        ].
+        (mthd := prj class compiledMethodAt:#startupSelector) notNil ifTrue:[
+            mthd package == prj package ifFalse:[
+                mthd package == PackageId noProjectID ifFalse:[
+                    self infoHolder value:('Startup class method (#startupSelector) of %3 must be in package "%1" (is in "%2")' 
+                        bindWith:prj package
+                        with:mthd package 
+                        with:prj class name). 
+                    ^ false
+                ]
+            ].
         ].
-    ].
-    cls := Smalltalk classNamed:prj startupClassName.
-    cls isNil ifTrue:[
-        self infoHolder value:('Startup class "%1" does not exist' bindWith:prj startupClassName).
-        ^ false.
-    ].
-    (cls implements:(prj startupSelector)) ifFalse:[
-        (cls respondsTo:(prj startupSelector)) ifFalse:[
-            self infoHolder value:('Startup class "%1" does not implement startup selector "%2"' 
-                    bindWith:cls name
-                    with:prj startupSelector). 
-            ^ false
+        cls := Smalltalk classNamed:prj startupClassName.
+        cls isNil ifTrue:[
+            self infoHolder value:('Startup class "%1" does not exist' bindWith:prj startupClassName).
+            ^ false.
+        ].
+        (cls implements:(prj startupSelector)) ifFalse:[
+            (cls respondsTo:(prj startupSelector)) ifFalse:[
+                self infoHolder value:('Startup class "%1" does not implement startup selector "%2"' 
+                        bindWith:cls name
+                        with:prj startupSelector). 
+                ^ false
+            ].
         ].
     ].
     self infoHolder value:nil.