diff --git a/PC/os2emx/pythonpm.c b/PC/os2emx/pythonpm.c
index 5accbbd..ba47f4b 100644
--- a/PC/os2emx/pythonpm.c
+++ b/PC/os2emx/pythonpm.c
@@ -27,10 +27,10 @@
 /* use structure to pass command line to Python thread */
 typedef struct
 {
-	int argc;
-	char **argv;
-	HWND Frame;
-	int running;
+    int argc;
+    char **argv;
+    HWND Frame;
+    int running;
 } arglist;
 
 /* make this a global to simplify access.
@@ -45,80 +45,80 @@
 int
 main(int argc, char **argv)
 {
-	ULONG FrameFlags = FCF_TITLEBAR |
-			   FCF_SYSMENU |
-			   FCF_SIZEBORDER |
-			   FCF_HIDEBUTTON |
-			   FCF_SHELLPOSITION |
-			   FCF_TASKLIST;
-	HAB hab;
-	HMQ hmq;
-	HWND Client;
-	QMSG qmsg;
-	arglist args;
-	int python_tid;
+    ULONG FrameFlags = FCF_TITLEBAR |
+                       FCF_SYSMENU |
+                       FCF_SIZEBORDER |
+                       FCF_HIDEBUTTON |
+                       FCF_SHELLPOSITION |
+                       FCF_TASKLIST;
+    HAB hab;
+    HMQ hmq;
+    HWND Client;
+    QMSG qmsg;
+    arglist args;
+    int python_tid;
 
-	/* init PM and create message queue */
-	hab = WinInitialize(0);
-	hmq = WinCreateMsgQueue(hab, 0);
+    /* init PM and create message queue */
+    hab = WinInitialize(0);
+    hmq = WinCreateMsgQueue(hab, 0);
 
-	/* create a (hidden) Window to house the window procedure */
-	args.Frame = WinCreateStdWindow(HWND_DESKTOP,
-					0,
-					&FrameFlags,
-					NULL,
-					"PythonPM",
-					0L,
-					0,
-					0,
-					&Client);
+    /* create a (hidden) Window to house the window procedure */
+    args.Frame = WinCreateStdWindow(HWND_DESKTOP,
+                                    0,
+                                    &FrameFlags,
+                                    NULL,
+                                    "PythonPM",
+                                    0L,
+                                    0,
+                                    0,
+                                    &Client);
 
-	/* run Python interpreter in a thread */
-	args.argc = argc;
-	args.argv = argv;
-	args.running = 0;
-	if (-1 == (python_tid = _beginthread(PythonThread, NULL, 1024 * 1024, &args)))
-	{
-		/* couldn't start thread */
-		WinAlarm(HWND_DESKTOP, WA_ERROR);
-		PythonRC = 1;
-	}
-	else
-	{
-		/* process PM messages, until Python exits */
-		while (WinGetMsg(hab, &qmsg, NULLHANDLE, 0, 0))
-			WinDispatchMsg(hab, &qmsg);
-		if (args.running > 0)
-			DosKillThread(python_tid);
-	}
-		
-	/* destroy window, shutdown message queue and PM */
-	WinDestroyWindow(args.Frame);
-	WinDestroyMsgQueue(hmq);
-	WinTerminate(hab);
+    /* run Python interpreter in a thread */
+    args.argc = argc;
+    args.argv = argv;
+    args.running = 0;
+    if (-1 == (python_tid = _beginthread(PythonThread, NULL, 1024 * 1024, &args)))
+    {
+        /* couldn't start thread */
+        WinAlarm(HWND_DESKTOP, WA_ERROR);
+        PythonRC = 1;
+    }
+    else
+    {
+        /* process PM messages, until Python exits */
+        while (WinGetMsg(hab, &qmsg, NULLHANDLE, 0, 0))
+            WinDispatchMsg(hab, &qmsg);
+        if (args.running > 0)
+            DosKillThread(python_tid);
+    }
 
-	return PythonRC;
+    /* destroy window, shutdown message queue and PM */
+    WinDestroyWindow(args.Frame);
+    WinDestroyMsgQueue(hmq);
+    WinTerminate(hab);
+
+    return PythonRC;
 }
 
 void PythonThread(void *argl)
 {
-	HAB hab;
-	arglist *args;
+    HAB hab;
+    arglist *args;
 
-	/* PM initialisation */
-	hab = WinInitialize(0);
+    /* PM initialisation */
+    hab = WinInitialize(0);
 
-	/* start Python */
-	args = (arglist *)argl;
-	args->running = 1;
-	PythonRC = Py_Main(args->argc, args->argv);
+    /* start Python */
+    args = (arglist *)argl;
+    args->running = 1;
+    PythonRC = Py_Main(args->argc, args->argv);
 
-	/* enter a critical section and send the termination message */
-	DosEnterCritSec();
-	args->running = 0;
-	WinPostMsg(args->Frame, WM_QUIT, NULL, NULL);
+    /* enter a critical section and send the termination message */
+    DosEnterCritSec();
+    args->running = 0;
+    WinPostMsg(args->Frame, WM_QUIT, NULL, NULL);
 
-	/* shutdown PM and terminate thread */
-	WinTerminate(hab);
-	_endthread();
+    /* shutdown PM and terminate thread */
+    WinTerminate(hab);
+    _endthread();
 }