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Matt Rogers wrote:
> changing the visibility of a function breaks BC because it's part of the
> function's signature, IIRC

I already knew this. I was thinking that the function would never be 
referenced outside its compilation unit; but it IS referenced by any 
compilation unit that includes the header file, even if it is never called. 
Alas, you are right.

I have attached a patch for removeIconExtensionInternal() that doesn't change 
any visibilities. Please commit if all is well.

Cheers,
Luke Sandell

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Index: kiconloader.cpp
===================================================================
--- kiconloader.cpp	(revision 537538)
+++ kiconloader.cpp	(working copy)
@@ -435,16 +435,25 @@
 
     if ( extensionLength > 0 )
     {
-#ifndef NDEBUG
-	kdDebug(264) << "Application " << KGlobal::instance()->instanceName()
-                     << " loads icon " << name << " with extension." << endl;
-#endif
-
 	return name.left(name.length() - extensionLength);
     }
     return name;
 }
 
+QString KIconLoader::removeIconExtensionInternal(const QString &name) const
+{
+  QString name_noext = removeIconExtension(name);
+  
+#ifndef NDEBUG
+  if (name != name_noext)
+  {
+    kdDebug(264) << "Application " << KGlobal::instance()->instanceName()
+                     << " loads icon " << name << " with extension." << endl;
+  }
+#endif
+  
+  return name_noext;
+}
 
 KIcon KIconLoader::findMatchingIcon(const QString& name, int size) const
 {
@@ -529,7 +538,7 @@
     if (!QDir::isRelativePath(_name))
 	return _name;
 
-    QString name = removeIconExtension( _name );
+    QString name = removeIconExtensionInternal( _name );
 
     QString path;
     if (group_or_size == KIcon::User)
@@ -673,7 +682,7 @@
         if (!canReturnNull && name.isEmpty())
             name = str_unknown;
         else
-	    name = removeIconExtension(name);
+	    name = removeIconExtensionInternal(name);
     }
 
     // If size == 0, use default size for the specified group.
Index: kiconloader.h
===================================================================
--- kiconloader.h	(revision 537538)
+++ kiconloader.h	(working copy)
@@ -401,11 +401,19 @@
     /**
      * Checks if name ends in one of the supported icon formats (i.e. .png)
      * and returns the name without the extension if it does.
+     * FIXME: KDE4 make public & static
      * @since 3.1
      */
     QString removeIconExtension(const QString &name) const;
 
     /**
+     * Same as removeIconExtension except it prints a debug message 
+     * if an extension is removed.
+     * FIXME: KDE4 make static
+     */
+    QString removeIconExtensionInternal(const QString &name) const;
+    
+    /**
      * Loads all the different sizes for an iconset.
      */
     QIconSet loadIconSetNonDelayed( const QString& name, KIcon::Group group,

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