Added stubs for DbgHelp functions: SymRegisterFunctionEntryCallback.
diff --git a/include/dbghelp.h b/include/dbghelp.h
index f19dbc6..d5849a4 100644
--- a/include/dbghelp.h
+++ b/include/dbghelp.h
@@ -842,6 +842,12 @@
 
 PVOID WINAPI SymFunctionTableAccess(HANDLE, DWORD);
 
+typedef PVOID (CALLBACK *PSYMBOL_FUNCENTRY_CALLBACK)(HANDLE, DWORD, PVOID);
+typedef PVOID (CALLBACK *PSYMBOL_FUNCENTRY_CALLBACK64)(HANDLE, ULONG64, ULONG64);
+
+BOOL WINAPI SymRegisterFunctionEntryCallback(HANDLE, PSYMBOL_FUNCENTRY_CALLBACK, PVOID);
+BOOL WINAPI SymRegisterFunctionEntryCallback64(HANDLE, PSYMBOL_FUNCENTRY_CALLBACK64, ULONG64);
+
 /*************************
  * Version, global stuff *
  *************************/