diff --git a/src/CoreServices/CMakeLists.txt b/src/CoreServices/CMakeLists.txt
index b25510331..84f2e6860 100644
--- a/src/CoreServices/CMakeLists.txt
+++ b/src/CoreServices/CMakeLists.txt
@@ -42,6 +42,7 @@ set(CoreServices_SRCS
 	CoreServicesPriv.cpp
 	TextCommon.cpp
 	TextEncodingConverter.cpp
+	MDQuery.c
 )
 
 if (WITH_COREAUDIO)
diff --git a/src/CoreServices/MDQuery.c b/src/CoreServices/MDQuery.c
new file mode 100644
index 000000000..2759be757
--- /dev/null
+++ b/src/CoreServices/MDQuery.c
@@ -0,0 +1,51 @@
+#include <CoreServices/MDQuery.h>
+
+CFStringRef kMDItemPath = CFSTR("MDItemPath");
+CFStringRef kMDQueryDidFinishNotification = CFSTR("MDQueryDidFinishNotification");
+CFStringRef kMDQueryDidUpdateNotification = CFSTR("MDQueryDidUpdateNotification");
+CFStringRef kMDQueryUpdateAddedItems = CFSTR("MDQueryUpdateAddedItems");
+CFStringRef kMDQueryUpdateChangedItems = CFSTR("MDQueryUpdateChangedItems");
+CFStringRef kMDQueryUpdateRemovedItems = CFSTR("MDQueryUpdateRemovedItems");
+
+MDQueryRef MDQueryCreate(CFAllocatorRef allocator, CFStringRef queryString, CFArrayRef valueListAttrs, CFArrayRef sortingAttrs)
+{
+	return NULL;
+}
+
+void MDQueryDisableUpdates(MDQueryRef query)
+{
+}
+
+void MDQueryEnableUpdates(MDQueryRef query)
+{
+}
+
+Boolean MDQueryExecute(MDQueryRef query, CFOptionFlags optionFlags)
+{
+	return FALSE;
+}
+
+void * MDQueryGetAttributeValueOfResultAtIndex(MDQueryRef query, CFStringRef name, CFIndex idx)
+{
+	return NULL;
+}
+
+const void * MDQueryGetResultAtIndex(MDQueryRef query, CFIndex idx)
+{
+	return NULL;
+}
+
+CFIndex MDQueryGetResultCount(MDQueryRef query)
+{
+	return 0;
+}
+
+void MDQuerySetSearchScope(MDQueryRef query, CFArrayRef scopeDirectories, OptionBits scopeOptions)
+{
+}
+
+void MDQueryStop(MDQueryRef query)
+{
+}
+
+
diff --git a/src/CoreServices/include/CoreServices/MDQuery.h b/src/CoreServices/include/CoreServices/MDQuery.h
new file mode 100644
index 000000000..b05f0ec79
--- /dev/null
+++ b/src/CoreServices/include/CoreServices/MDQuery.h
@@ -0,0 +1,45 @@
+#ifndef _MDQUERY_H
+#define _MDQUERY_H
+#include <CoreFoundation/CFBase.h>
+#include <CoreFoundation/CFString.h>
+#include <CoreFoundation/CFArray.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef CFTypeRef MDQueryRef;
+
+extern CFStringRef kMDItemPath;
+extern CFStringRef kMDQueryDidFinishNotification;
+extern CFStringRef kMDQueryDidUpdateNotification;
+extern CFStringRef kMDQueryUpdateAddedItems;
+extern CFStringRef kMDQueryUpdateChangedItems;
+extern CFStringRef kMDQueryUpdateRemovedItems;
+
+MDQueryRef MDQueryCreate(CFAllocatorRef allocator, CFStringRef queryString, CFArrayRef valueListAttrs, CFArrayRef sortingAttrs);
+
+void MDQueryDisableUpdates(MDQueryRef query);
+
+void MDQueryEnableUpdates(MDQueryRef query);
+
+Boolean MDQueryExecute(MDQueryRef query, CFOptionFlags optionFlags);
+
+void * MDQueryGetAttributeValueOfResultAtIndex(MDQueryRef query, CFStringRef name, CFIndex idx);
+
+const void * MDQueryGetResultAtIndex(MDQueryRef query, CFIndex idx);
+
+CFIndex MDQueryGetResultCount(MDQueryRef query);
+
+void MDQuerySetSearchScope(MDQueryRef query, CFArrayRef scopeDirectories, OptionBits scopeOptions);
+
+void MDQueryStop(MDQueryRef query);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+