diff --git a/ChangeLog b/ChangeLog
index babdf72..a322195 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2014-12-16 Riccardo Mottola <rm@gnu.org>
+
+	* Framework/PCMakefileFactory.m
+	Generate sections only if there are classes.
+
 2014-12-15 Riccardo Mottola <rm@gnu.org>
 
 	* Framework/PCMakefileFactory.m
diff --git a/Framework/PCMakefileFactory.m b/Framework/PCMakefileFactory.m
index c1ce512..2817304 100644
--- a/Framework/PCMakefileFactory.m
+++ b/Framework/PCMakefileFactory.m
@@ -342,7 +342,7 @@ static PCMakefileFactory *_factory = nil;
   NSEnumerator   *oenum;
   NSMutableArray *marray = nil;
   NSMutableArray *mmarray = nil;
-    NSString       *file;
+  NSString       *file;
   
   if (array == nil || [array count] == 0)
     {
@@ -370,17 +370,19 @@ static PCMakefileFactory *_factory = nil;
 	}
     }
 
-  [self appendString:COMMENT_CLASSES];
-  [self appendString:
-    [NSString stringWithFormat: @"%@_OBJC_FILES = \\\n",target]];
+  if (marray)
+    {
+      [self appendString:COMMENT_CLASSES];
+      [self appendString: [NSString stringWithFormat: @"%@_OBJC_FILES = \\\n",target]];
+      [self appendString: [marray componentsJoinedByString: @" \\\n"]];
+    }
 
-  [self appendString: [marray componentsJoinedByString: @" \\\n"]];
-
-  [self appendString:COMMENT_OCPPCLASSES];
-  [self appendString:
-    [NSString stringWithFormat: @"%@_OBJCC_FILES = \\\n",target]];
-
-  [self appendString: [mmarray componentsJoinedByString: @" \\\n"]];  
+  if (mmarray)
+    {
+      [self appendString:COMMENT_OCPPCLASSES];
+      [self appendString: [NSString stringWithFormat: @"%@_OBJCC_FILES = \\\n",target]];
+      [self appendString: [mmarray componentsJoinedByString: @" \\\n"]];
+    }
 }
 
 - (void)appendOtherSources:(NSArray *)array