diff --git a/.gitattributes b/.gitattributes
index 556cef3af1..583da6b13e 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -8863,7 +8863,6 @@ rtl/morphos/emuld.inc svneol=native#text/plain
 rtl/morphos/execd.inc svneol=native#text/plain
 rtl/morphos/execf.inc svneol=native#text/plain
 rtl/morphos/prt0.as svneol=native#text/plain
-rtl/morphos/sysosh.inc svneol=native#text/plain
 rtl/morphos/system.pp svneol=native#text/plain
 rtl/morphos/timerd.inc svneol=native#text/plain
 rtl/morphos/timerf.inc svneol=native#text/plain
diff --git a/rtl/morphos/sysosh.inc b/rtl/morphos/sysosh.inc
deleted file mode 100644
index dbb22bdc87..0000000000
--- a/rtl/morphos/sysosh.inc
+++ /dev/null
@@ -1,33 +0,0 @@
-{
-    This file is part of the Free Pascal run time library.
-    Copyright (c) 2001 by Free Pascal development team
-
-    This file implements all the base types and limits required
-    for a minimal POSIX compliant subset required to port the compiler
-    to a new OS.
-
-    See the file COPYING.FPC, included in this distribution,
-    for details about the copyright.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
- **********************************************************************}
-
-{Platform specific information}
-type
-{$ifdef CPU64}
-  THandle = Int64;
-{$else CPU64}
-  THandle = Longint;
-{$endif CPU64}
-  TThreadID = THandle;
-  
-  PRTLCriticalSection = ^TRTLCriticalSection;
-  TRTLCriticalSection = record
-   Locked: boolean
-  end;
-
-
-