diff --git a/src/Makefile b/src/Makefile
index 35d7f405..6b0ebed1 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -807,7 +807,7 @@ endif
          doc doxygen htmldoc check
 
 # This is the list of the objects we want to build. Dependancies are built by "make depend" automatically.
-OBJS = main.o init.o graph.o $(APIOBJ) misc.o special.o \
+OBJS = main.o init.o graph.o $(APIOBJ) misc.o osdep.o special.o \
        buttons.o palette.o help.o operatio.o pages.o \
        readline.o engine.o filesel.o fileseltools.o \
        op_c.o readini.o saveini.o \
diff --git a/src/buttons.c b/src/buttons.c
index 7683215d..2cff705d 100644
--- a/src/buttons.c
+++ b/src/buttons.c
@@ -49,6 +49,7 @@
 #include "struct.h"
 #include "global.h"
 #include "misc.h"
+#include "osdep.h"
 #include "graph.h"
 #include "engine.h"
 #include "readline.h"
diff --git a/src/engine.c b/src/engine.c
index 27459a8d..b92af4ea 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -36,6 +36,7 @@
 #include "global.h"
 #include "graph.h"
 #include "misc.h"
+#include "osdep.h"
 #include "special.h"
 #include "buttons.h"
 #include "operatio.h"
diff --git a/src/factory.c b/src/factory.c
index 8a5e198e..06bc61a1 100644
--- a/src/factory.c
+++ b/src/factory.c
@@ -36,6 +36,7 @@
 #include "graph.h"
 #include "io.h"     // find_last_separator
 #include "misc.h"
+#include "osdep.h"
 #include "pages.h"  // Backup()
 #include "readline.h"
 #include "screen.h"
diff --git a/src/graph.c b/src/graph.c
index be87665c..2a183a37 100644
--- a/src/graph.c
+++ b/src/graph.c
@@ -39,6 +39,7 @@
 #include "screen.h"
 #include "graph.h"
 #include "misc.h"
+#include "osdep.h"
 #include "pxsimple.h"
 #include "pxtall.h"
 #include "pxwide.h"
diff --git a/src/input.c b/src/input.c
index 65f13742..e9b29adb 100644
--- a/src/input.c
+++ b/src/input.c
@@ -58,6 +58,7 @@
 #include "windows.h"
 #include "errors.h"
 #include "misc.h"
+#include "osdep.h"
 #include "buttons.h"
 #include "input.h"
 #include "loadsave.h"
diff --git a/src/layers.c b/src/layers.c
index 6bb7ded4..c5e37af0 100644
--- a/src/layers.c
+++ b/src/layers.c
@@ -33,6 +33,7 @@
 #include "input.h"
 #include "help.h"
 #include "misc.h"
+#include "osdep.h"
 #include "readline.h"
 #include "graph.h"
 #include "keycodes.h"
diff --git a/src/loadsave.c b/src/loadsave.c
index d1dc0394..e68af129 100644
--- a/src/loadsave.c
+++ b/src/loadsave.c
@@ -62,6 +62,7 @@
 #include "loadsave.h"
 #include "loadsavefuncs.h"
 #include "misc.h"
+#include "osdep.h"
 #include "graph.h"
 #include "op_c.h"
 #include "pages.h"
diff --git a/src/misc.c b/src/misc.c
index 615f2a40..491b2e34 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -28,19 +28,13 @@
 #endif
 #include <stdlib.h>
 #include <math.h>
-#if !defined(USE_SDL) && !defined(USE_SDL2)
-#if defined(WIN32)
-#include <windows.h>
-#else
-#include <sys/time.h>
-#endif
-#endif
 #include "struct.h"
 #include "global.h"
 #include "errors.h"
 #include "buttons.h"
 #include "engine.h"
 #include "misc.h"
+#include "osdep.h"
 #include "keyboard.h"
 #include "screen.h"
 #include "windows.h"
@@ -864,18 +858,3 @@ int Convert_videomode_arg(const char *argument)
 
   return -1;
 }
-
-dword GFX2_GetTicks(void)
-{
-#if defined(USE_SDL) || defined(USE_SDL2)
-  return SDL_GetTicks();
-#elif defined(WIN32)
-  return GetTickCount();
-#else
-  struct timeval tv;
-  if (gettimeofday(&tv, NULL) < 0)
-    return 0;
-  return tv.tv_sec * 1000 + tv.tv_usec / 1000;
-#endif
-}
-
diff --git a/src/misc.h b/src/misc.h
index 2f00ded3..ae50d20f 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -150,7 +150,4 @@ int Max(int a,int b);
 const char* Mode_label(int mode);
 int Convert_videomode_arg(const char *argument);
 
-/// Return a number of milliseconds
-dword GFX2_GetTicks(void);
-
 #endif
diff --git a/src/operatio.c b/src/operatio.c
index 356b03fd..8bfff4e6 100644
--- a/src/operatio.c
+++ b/src/operatio.c
@@ -27,6 +27,7 @@
 #include "struct.h"
 #include "global.h"
 #include "misc.h"
+#include "osdep.h"
 #include "engine.h"
 #include "graph.h"
 #include "operatio.h"
diff --git a/src/osdep.c b/src/osdep.c
new file mode 100644
index 00000000..879c00ab
--- /dev/null
+++ b/src/osdep.c
@@ -0,0 +1,50 @@
+/* vim:expandtab:ts=2 sw=2:
+*/
+/*  Grafx2 - The Ultimate 256-color bitmap paint program
+
+    Copyright 2020 Thomas Bernard
+    Copyright 2011 Pawel Góralski
+    Copyright 2008 Yves Rizoud
+    Copyright 2008 Franck Charlet
+    Copyright 2007 Adrien Destugues
+    Copyright 1996-2001 Sunset Design (Guillaume Dorme & Karl Maritaud)
+
+    Grafx2 is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License
+    as published by the Free Software Foundation; version 2
+    of the License.
+
+    Grafx2 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.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Grafx2; if not, see <http://www.gnu.org/licenses/>
+*/
+#if defined(USE_SDL) || defined(USE_SDL2)
+#include <SDL.h>
+#else
+#if defined(WIN32)
+#include <windows.h>
+#else
+#include <sys/time.h>
+#endif
+#endif
+
+#include "struct.h"
+
+dword GFX2_GetTicks(void)
+{
+#if defined(USE_SDL) || defined(USE_SDL2)
+  return SDL_GetTicks();
+#elif defined(WIN32)
+  return GetTickCount();
+#else
+  struct timeval tv;
+  if (gettimeofday(&tv, NULL) < 0)
+    return 0;
+  return tv.tv_sec * 1000 + tv.tv_usec / 1000;
+#endif
+}
+
diff --git a/src/osdep.h b/src/osdep.h
new file mode 100644
index 00000000..267b6d6e
--- /dev/null
+++ b/src/osdep.h
@@ -0,0 +1,36 @@
+/* vim:expandtab:ts=2 sw=2:
+*/
+/*  Grafx2 - The Ultimate 256-color bitmap paint program
+
+    Copyright 2020 Thomas Bernard
+    Copyright 2011 Pawel Góralski
+    Copyright 2008 Yves Rizoud
+    Copyright 2008 Franck Charlet
+    Copyright 2007 Adrien Destugues
+    Copyright 1996-2001 Sunset Design (Guillaume Dorme & Karl Maritaud)
+
+    Grafx2 is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License
+    as published by the Free Software Foundation; version 2
+    of the License.
+
+    Grafx2 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.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Grafx2; if not, see <http://www.gnu.org/licenses/>
+*/
+//////////////////////////////////////////////////////////////////////////////
+///@file osdep.h
+/// OS Dependend code
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef OSDEP_H_DEFINED
+#define OSDEP_H_DEFINED
+
+/// Return a number of milliseconds
+dword GFX2_GetTicks(void);
+
+#endif
diff --git a/src/special.c b/src/special.c
index d6c6bb1a..a03199af 100644
--- a/src/special.c
+++ b/src/special.c
@@ -29,6 +29,7 @@
 #include "special.h"
 #include "pages.h"
 #include "misc.h"
+#include "osdep.h"
 #include "buttons.h"
 
 
diff --git a/src/tiles.c b/src/tiles.c
index a4c851e7..dd731308 100644
--- a/src/tiles.c
+++ b/src/tiles.c
@@ -30,6 +30,7 @@
 #include "windows.h"
 #include "input.h"
 #include "misc.h"
+#include "osdep.h"
 #include "tiles.h"
 
 // These helpers are only needed internally at the moment