Index: trunk/ppMerge/src/ppMergeFileGroup.c
===================================================================
--- trunk/ppMerge/src/ppMergeFileGroup.c	(revision 18757)
+++ trunk/ppMerge/src/ppMergeFileGroup.c	(revision 19288)
@@ -1,16 +1,14 @@
 # include "ppMerge.h"
 
-void ppMergeFileGroupFree (ppMergeFileGroup *group) {
-
-    if (!group) return;
-
-    psFree (group->readouts);
+static void mergeFileGroupFree(ppMergeFileGroup *group)
+{
+    psFree(group->readouts);
     return;
 }
 
-ppMergeFileGroup *ppMergeFileGroupAlloc() {
-
-    ppMergeFileGroup *group = (ppMergeFileGroup *) psAlloc(sizeof(ppMergeFileGroup));
-    psMemSetDeallocator(group, (psFreeFunc) ppMergeFileGroupFree);
+ppMergeFileGroup *ppMergeFileGroupAlloc(void)
+{
+    ppMergeFileGroup *group = psAlloc(sizeof(ppMergeFileGroup));
+    psMemSetDeallocator(group, (psFreeFunc)mergeFileGroupFree);
 
     group->readouts = NULL;