diff --git a/reactos/lib/dbghelp/stack.c b/reactos/lib/dbghelp/stack.c
index 5d7e2ec2dcf..61227156b53 100644
--- a/reactos/lib/dbghelp/stack.c
+++ b/reactos/lib/dbghelp/stack.c
@@ -39,6 +39,7 @@ WINE_DEFAULT_DEBUG_CHANNEL(dbghelp);
 
 enum st_mode {stm_start, stm_32bit, stm_16bit, stm_done};
 
+#if 0
 static const char* wine_dbgstr_addr(const ADDRESS* addr)
 {
     if (!addr) return "(null)";
@@ -56,6 +57,7 @@ static const char* wine_dbgstr_addr(const ADDRESS* addr)
         return "unknown";
     }
 }
+#endif
 
 /* indexes in Reserved array */
 #define __CurrentMode     0
diff --git a/reactos/lib/dbghelp/stackframe.h b/reactos/lib/dbghelp/stackframe.h
index c0e3e663a9e..bedf4d7ffb2 100644
--- a/reactos/lib/dbghelp/stackframe.h
+++ b/reactos/lib/dbghelp/stackframe.h
@@ -69,6 +69,11 @@ typedef struct _STACK16FRAME
 
 #include <poppack.h>
 
+static inline int MapSL(int size)
+{
+return -1;
+}
+
 #define CURRENT_STACK16      ((STACK16FRAME*)MapSL(NtCurrentTeb()->cur_stack))
 #define CURRENT_DS           (CURRENT_STACK16->ds)