diff --git a/RISCOS/Modules/config.c b/RISCOS/Modules/config.c
index 54fbc79..c498e98 100644
--- a/RISCOS/Modules/config.c
+++ b/RISCOS/Modules/config.c
@@ -49,25 +49,25 @@
 
 struct _inittab _PyImport_Inittab[] = {
 
-	{"riscos", initriscos},
+    {"riscos", initriscos},
 
 /* -- ADDMODULE MARKER 2 -- */
 
-	/* This module "lives in" with marshal.c */
-	{"marshal", PyMarshal_Init},
+    /* This module "lives in" with marshal.c */
+    {"marshal", PyMarshal_Init},
 
-	/* This lives it with import.c */
-	{"imp", initimp},
+    /* This lives it with import.c */
+    {"imp", initimp},
 
-	/* These entries are here for sys.builtin_module_names */
-	{"__main__", NULL},
-	{"__builtin__", NULL},
-	{"sys", NULL},
-	{"exceptions", NULL},
+    /* These entries are here for sys.builtin_module_names */
+    {"__main__", NULL},
+    {"__builtin__", NULL},
+    {"sys", NULL},
+    {"exceptions", NULL},
 
-	/* This lives in gcmodule.c */
-	{"gc", initgc},
+    /* This lives in gcmodule.c */
+    {"gc", initgc},
 
-	/* Sentinel */
-	{0, 0}
+    /* Sentinel */
+    {0, 0}
 };
diff --git a/RISCOS/Modules/getpath_riscos.c b/RISCOS/Modules/getpath_riscos.c
index ce978c6..11e92c1 100644
--- a/RISCOS/Modules/getpath_riscos.c
+++ b/RISCOS/Modules/getpath_riscos.c
@@ -5,24 +5,24 @@
 
 static void
 calculate_path()
-{ 
-	char *pypath = getenv("Python$Path");
-	if (pypath) {
-		int pathlen = strlen(pypath);
-		module_search_path = malloc(pathlen + 1);
-		if (module_search_path) 
-			strncpy(module_search_path, pypath, pathlen + 1);
-		else {
-			fprintf(stderr, 
-				"Not enough memory for dynamic PYTHONPATH.\n"
-				"Using default static PYTHONPATH.\n");
-		}
-	}
-	if (!module_search_path) 
-		module_search_path = "<Python$Dir>.Lib";
-	prefix = "<Python$Dir>";
-	exec_prefix = prefix;
-	progpath = Py_GetProgramName();
+{
+    char *pypath = getenv("Python$Path");
+    if (pypath) {
+        int pathlen = strlen(pypath);
+        module_search_path = malloc(pathlen + 1);
+        if (module_search_path)
+            strncpy(module_search_path, pypath, pathlen + 1);
+        else {
+            fprintf(stderr,
+                "Not enough memory for dynamic PYTHONPATH.\n"
+                "Using default static PYTHONPATH.\n");
+        }
+    }
+    if (!module_search_path)
+        module_search_path = "<Python$Dir>.Lib";
+    prefix = "<Python$Dir>";
+    exec_prefix = prefix;
+    progpath = Py_GetProgramName();
 }
 
 /* External interface */
@@ -30,31 +30,31 @@
 char *
 Py_GetPath()
 {
-	if (!module_search_path)
-		calculate_path();
-	return module_search_path;
+    if (!module_search_path)
+        calculate_path();
+    return module_search_path;
 }
 
 char *
 Py_GetPrefix()
 {
-	if (!module_search_path)
-		calculate_path();
-	return prefix;
+    if (!module_search_path)
+        calculate_path();
+    return prefix;
 }
 
 char *
 Py_GetExecPrefix()
 {
-	if (!module_search_path)
-		calculate_path();
-	return exec_prefix;
+    if (!module_search_path)
+        calculate_path();
+    return exec_prefix;
 }
 
 char *
 Py_GetProgramFullPath()
 {
-	if (!module_search_path)
-		calculate_path();
-	return progpath;
+    if (!module_search_path)
+        calculate_path();
+    return progpath;
 }
diff --git a/RISCOS/Modules/riscosmodule.c b/RISCOS/Modules/riscosmodule.c
index 3dabb4d..4387383 100644
--- a/RISCOS/Modules/riscosmodule.c
+++ b/RISCOS/Modules/riscosmodule.c
@@ -19,13 +19,13 @@
 
 static PyObject *riscos_error(char *s)
 {
-	PyErr_SetString(PyExc_OSError, s);
-	return NULL;
+    PyErr_SetString(PyExc_OSError, s);
+    return NULL;
 }
 
 static PyObject *riscos_oserror(void)
 {
-	return riscos_error(e->errmess);
+    return riscos_error(e->errmess);
 }
 
 
@@ -35,40 +35,40 @@
 riscos_remove(PyObject *self, PyObject *args)
 {
     char *path1;
-	if (!PyArg_ParseTuple(args, "s:remove", &path1)) return NULL;
-	if (remove(path1)) return PyErr_SetFromErrno(PyExc_OSError);
-	Py_INCREF(Py_None);
-	return Py_None;
+    if (!PyArg_ParseTuple(args, "s:remove", &path1)) return NULL;
+    if (remove(path1)) return PyErr_SetFromErrno(PyExc_OSError);
+    Py_INCREF(Py_None);
+    return Py_None;
 }
 
 static PyObject *
 riscos_rename(PyObject *self, PyObject *args)
 {
-	char *path1, *path2;
-	if (!PyArg_ParseTuple(args, "ss:rename", &path1, &path2))
-        return NULL;
-	if (rename(path1,path2)) return PyErr_SetFromErrno(PyExc_OSError);
-	Py_INCREF(Py_None);
-	return Py_None;
+    char *path1, *path2;
+    if (!PyArg_ParseTuple(args, "ss:rename", &path1, &path2))
+    return NULL;
+    if (rename(path1,path2)) return PyErr_SetFromErrno(PyExc_OSError);
+    Py_INCREF(Py_None);
+    return Py_None;
 }
 
 static PyObject *
 riscos_system(PyObject *self, PyObject *args)
 {
-	char *command;
-	if (!PyArg_ParseTuple(args, "s:system", &command)) return NULL;
-	return PyInt_FromLong(system(command));
+    char *command;
+    if (!PyArg_ParseTuple(args, "s:system", &command)) return NULL;
+    return PyInt_FromLong(system(command));
 }
 
 static PyObject *
 riscos_chdir(PyObject *self, PyObject *args)
 {
-	char *path;
-	if (!PyArg_ParseTuple(args, "s:chdir", &path)) return NULL;
-	e=xosfscontrol_dir(path);
-	if(e) return riscos_oserror();
-	Py_INCREF(Py_None);
-	return Py_None;
+    char *path;
+    if (!PyArg_ParseTuple(args, "s:chdir", &path)) return NULL;
+    e=xosfscontrol_dir(path);
+    if(e) return riscos_oserror();
+    Py_INCREF(Py_None);
+    return Py_None;
 }
 
 static PyObject *
@@ -98,46 +98,46 @@
 static PyObject *
 riscos_expand(PyObject *self, PyObject *args)
 {
-	char *path;
-	if (!PyArg_ParseTuple(args, "s:expand", &path)) return NULL;
-        return canon(path);
+    char *path;
+    if (!PyArg_ParseTuple(args, "s:expand", &path)) return NULL;
+    return canon(path);
 }
 
 static PyObject *
 riscos_mkdir(PyObject *self, PyObject *args)
 {
-	char *path;
+    char *path;
     int mode;
     if (!PyArg_ParseTuple(args, "s|i:mkdir", &path, &mode)) return NULL;
     e=xosfile_create_dir(path,0);
     if(e) return riscos_oserror();
-	Py_INCREF(Py_None);
-	return Py_None;
+    Py_INCREF(Py_None);
+    return Py_None;
 }
 
 static PyObject *
 riscos_listdir(PyObject *self, PyObject *args)
 {
-	char *path,buf[256];
+    char *path,buf[256];
     PyObject *d, *v;
     int c=0,count;
-	if (!PyArg_ParseTuple(args, "s:listdir", &path)) return NULL;
-	d=PyList_New(0);
-	if(!d) return NULL;
-	for(;;)
-	{ e=xosgbpb_dir_entries(path,(osgbpb_string_list*)buf,
-	                             1,c,256,0,&count,&c);
-	  if(e)
-	  { Py_DECREF(d);return riscos_oserror();
-	  }
-	  if(count)
-	  { v=PyString_FromString(buf);
-	    if(!v) { Py_DECREF(d);return 0;}
-	    if(PyList_Append(d,v)) {Py_DECREF(d);Py_DECREF(v);return 0;}
-	  }
-	  if(c==-1) break;
-	}
-	return d;
+    if (!PyArg_ParseTuple(args, "s:listdir", &path)) return NULL;
+    d=PyList_New(0);
+    if(!d) return NULL;
+    for(;;)
+    { e=xosgbpb_dir_entries(path,(osgbpb_string_list*)buf,
+                                 1,c,256,0,&count,&c);
+      if(e)
+      { Py_DECREF(d);return riscos_oserror();
+      }
+      if(count)
+      { v=PyString_FromString(buf);
+        if(!v) { Py_DECREF(d);return 0;}
+        if(PyList_Append(d,v)) {Py_DECREF(d);Py_DECREF(v);return 0;}
+      }
+      if(c==-1) break;
+    }
+    return d;
 }
 
 PyDoc_STRVAR(stat_result__doc__,
@@ -151,167 +151,167 @@
 See os.stat for more information.");
 
 static PyStructSequence_Field stat_result_fields[] = {
-        { "st_mode",  "protection bits" },
-        { "st_ino",   "inode" },
-        { "st_dev",   "device" },
-        { "st_nlink", "number of hard links" },
-        { "st_uid",   "user ID of owner" },
-        { "st_gid",   "group ID of owner" },
-        { "st_size",  "total size, in bytes" },
-        { "st_atime", "time of last access" },
-        { "st_mtime", "time of last modification" },
-        { "st_ctime", "time of last change" },
-	{ "st_ftype", "file type" },
-	{ "st_attrs", "attributes" },
-	{ "st_obtype", "object type" },
-	{ 0 }
+    { "st_mode",  "protection bits" },
+    { "st_ino",   "inode" },
+    { "st_dev",   "device" },
+    { "st_nlink", "number of hard links" },
+    { "st_uid",   "user ID of owner" },
+    { "st_gid",   "group ID of owner" },
+    { "st_size",  "total size, in bytes" },
+    { "st_atime", "time of last access" },
+    { "st_mtime", "time of last modification" },
+    { "st_ctime", "time of last change" },
+    { "st_ftype", "file type" },
+    { "st_attrs", "attributes" },
+    { "st_obtype", "object type" },
+    { 0 }
 };
 
 static PyStructSequence_Desc stat_result_desc = {
-	"riscos.stat_result",
-	stat_result__doc__,
-	stat_result_fields,
-	13
+    "riscos.stat_result",
+    stat_result__doc__,
+    stat_result_fields,
+    13
 };
 
 static PyTypeObject StatResultType;
 
 static PyObject *
 riscos_stat(PyObject *self, PyObject *args)
-{	
-	PyObject *v;
-	char *path;
-        int ob,len;
-        bits t=0;
-        bits ld,ex,at,ft,mode;
-	if (!PyArg_ParseTuple(args, "s:stat", &path)) return NULL;
-	e=xosfile_read_stamped_no_path(path,&ob,&ld,&ex,&len,&at,&ft);
-	if(e) return riscos_oserror();
-	switch (ob)
-	{ case osfile_IS_FILE:mode=0100000;break;  /* OCTAL */
-	  case osfile_IS_DIR:mode=040000;break;
-	  case osfile_IS_IMAGE:mode=0140000;break;
-	  default:return riscos_error("Not found");
-	}
-	if(ft!=-1) t=unixtime(ld,ex);
-	mode|=(at&7)<<6;
-	mode|=((at&112)*9)>>4;
+{
+    PyObject *v;
+    char *path;
+    int ob,len;
+    bits t=0;
+    bits ld,ex,at,ft,mode;
+    if (!PyArg_ParseTuple(args, "s:stat", &path)) return NULL;
+    e=xosfile_read_stamped_no_path(path,&ob,&ld,&ex,&len,&at,&ft);
+    if(e) return riscos_oserror();
+    switch (ob)
+    { case osfile_IS_FILE:mode=0100000;break;  /* OCTAL */
+      case osfile_IS_DIR:mode=040000;break;
+      case osfile_IS_IMAGE:mode=0140000;break;
+      default:return riscos_error("Not found");
+    }
+    if(ft!=-1) t=unixtime(ld,ex);
+    mode|=(at&7)<<6;
+    mode|=((at&112)*9)>>4;
 
-	v = PyStructSequence_New(&StatResultType);
+    v = PyStructSequence_New(&StatResultType);
 
-	PyStructSequence_SET_ITEM(v, 0, 
-				  PyInt_FromLong((long) mode)); /*st_mode*/
-	PyStructSequence_SET_ITEM(v, 1, PyInt_FromLong((long) 0)); /*st_ino*/
-	PyStructSequence_SET_ITEM(v, 2, PyInt_FromLong((long) 0)); /*st_dev*/
-	PyStructSequence_SET_ITEM(v, 3, PyInt_FromLong((long) 0)); /*st_nlink*/
-	PyStructSequence_SET_ITEM(v, 4, PyInt_FromLong((long) 0)); /*st_uid*/
-	PyStructSequence_SET_ITEM(v, 5, PyInt_FromLong((long) 0)); /*st_gid*/
-	PyStructSequence_SET_ITEM(v, 6, 
-				  PyInt_FromLong((long) len)); /*st_size*/
-	PyStructSequence_SET_ITEM(v, 7, PyInt_FromLong((long) t)); /*st_atime*/
-	PyStructSequence_SET_ITEM(v, 8, PyInt_FromLong((long) t)); /*st_mtime*/
-	PyStructSequence_SET_ITEM(v, 9, PyInt_FromLong((long) t)); /*st_ctime*/
-	PyStructSequence_SET_ITEM(v, 10, 
-				  PyInt_FromLong((long) ft)); /*file type*/
-	PyStructSequence_SET_ITEM(v, 11, 
-				  PyInt_FromLong((long) at)); /*attributes*/
-	PyStructSequence_SET_ITEM(v, 12, 
-				  PyInt_FromLong((long) ob)); /*object type*/
+    PyStructSequence_SET_ITEM(v, 0,
+                              PyInt_FromLong((long) mode)); /*st_mode*/
+    PyStructSequence_SET_ITEM(v, 1, PyInt_FromLong((long) 0)); /*st_ino*/
+    PyStructSequence_SET_ITEM(v, 2, PyInt_FromLong((long) 0)); /*st_dev*/
+    PyStructSequence_SET_ITEM(v, 3, PyInt_FromLong((long) 0)); /*st_nlink*/
+    PyStructSequence_SET_ITEM(v, 4, PyInt_FromLong((long) 0)); /*st_uid*/
+    PyStructSequence_SET_ITEM(v, 5, PyInt_FromLong((long) 0)); /*st_gid*/
+    PyStructSequence_SET_ITEM(v, 6,
+                              PyInt_FromLong((long) len)); /*st_size*/
+    PyStructSequence_SET_ITEM(v, 7, PyInt_FromLong((long) t)); /*st_atime*/
+    PyStructSequence_SET_ITEM(v, 8, PyInt_FromLong((long) t)); /*st_mtime*/
+    PyStructSequence_SET_ITEM(v, 9, PyInt_FromLong((long) t)); /*st_ctime*/
+    PyStructSequence_SET_ITEM(v, 10,
+                              PyInt_FromLong((long) ft)); /*file type*/
+    PyStructSequence_SET_ITEM(v, 11,
+                              PyInt_FromLong((long) at)); /*attributes*/
+    PyStructSequence_SET_ITEM(v, 12,
+                              PyInt_FromLong((long) ob)); /*object type*/
 
-        if (PyErr_Occurred()) {
-                Py_DECREF(v);
-                return NULL;
-        }
+    if (PyErr_Occurred()) {
+        Py_DECREF(v);
+        return NULL;
+    }
 
-        return v;
+    return v;
 }
 
 static PyObject *
 riscos_chmod(PyObject *self,PyObject *args)
 {
-	char *path;
+    char *path;
     bits mode;
     bits attr;
     attr=(mode&0x700)>>8;
     attr|=(mode&7)<<4;
-	if (!PyArg_ParseTuple(args, "si:chmod", &path,(int*)&mode)) return NULL;
-        e=xosfile_write_attr(path,attr);
-        if(e) return riscos_oserror();
-	Py_INCREF(Py_None);
-	return Py_None;
+    if (!PyArg_ParseTuple(args, "si:chmod", &path,(int*)&mode)) return NULL;
+    e=xosfile_write_attr(path,attr);
+    if(e) return riscos_oserror();
+    Py_INCREF(Py_None);
+    return Py_None;
 }
 
 
 static PyObject *
 riscos_utime(PyObject *self, PyObject *args)
 {
-	char *path;
-	long atime, mtime;
-	PyObject* arg;
+    char *path;
+    long atime, mtime;
+    PyObject* arg;
 
-	if (!PyArg_ParseTuple(args, "sO:utime", &path, &arg))
-		return NULL;
+    if (!PyArg_ParseTuple(args, "sO:utime", &path, &arg))
+        return NULL;
 
-	if (arg == Py_None) {
-		/* optional time values not given */
-		Py_BEGIN_ALLOW_THREADS
-		e=xosfile_stamp(path);
-		Py_END_ALLOW_THREADS
-        	if(e) return riscos_oserror();
-	}
-	else if (!PyArg_Parse(arg, "(ll)", &atime, &mtime)) {
-		PyErr_SetString(PyExc_TypeError,
-				"utime() arg 2 must be a tuple (atime, mtime)");
-		return NULL;
-	}
-	else {
-	        /* catalogue info*/
-	        fileswitch_object_type obj_type;
-	        bits load_addr, exec_addr;
-	        int size;
-	        fileswitch_attr attr;
+    if (arg == Py_None) {
+        /* optional time values not given */
+        Py_BEGIN_ALLOW_THREADS
+        e=xosfile_stamp(path);
+        Py_END_ALLOW_THREADS
+        if(e) return riscos_oserror();
+    }
+    else if (!PyArg_Parse(arg, "(ll)", &atime, &mtime)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "utime() arg 2 must be a tuple (atime, mtime)");
+        return NULL;
+    }
+    else {
+        /* catalogue info*/
+        fileswitch_object_type obj_type;
+        bits load_addr, exec_addr;
+        int size;
+        fileswitch_attr attr;
 
-		/* read old catalogue info */
-		Py_BEGIN_ALLOW_THREADS
-		e=xosfile_read_no_path(path, &obj_type, &load_addr, &exec_addr, &size, &attr);
-		Py_END_ALLOW_THREADS
-	        if(e) return riscos_oserror();
+        /* read old catalogue info */
+        Py_BEGIN_ALLOW_THREADS
+        e=xosfile_read_no_path(path, &obj_type, &load_addr, &exec_addr, &size, &attr);
+        Py_END_ALLOW_THREADS
+        if(e) return riscos_oserror();
 
-		/* check if load and exec address really contain filetype and date */
-		if ( (load_addr & 0xFFF00000U) != 0xFFF00000U)
-			return riscos_error("can't set date for object with load and exec addresses");
+        /* check if load and exec address really contain filetype and date */
+        if ( (load_addr & 0xFFF00000U) != 0xFFF00000U)
+            return riscos_error("can't set date for object with load and exec addresses");
 
-	        /* convert argument mtime to RISC OS load and exec address */
-	        if(acorntime(&exec_addr, &load_addr, (time_t) mtime))
-	        	return riscos_oserror();
+        /* convert argument mtime to RISC OS load and exec address */
+        if(acorntime(&exec_addr, &load_addr, (time_t) mtime))
+            return riscos_oserror();
 
-		/* write new load and exec address */
-		Py_BEGIN_ALLOW_THREADS
-		e = xosfile_write(path, load_addr, exec_addr, attr);
-		Py_END_ALLOW_THREADS
-	        if(e) return riscos_oserror();
-	}
+        /* write new load and exec address */
+        Py_BEGIN_ALLOW_THREADS
+        e = xosfile_write(path, load_addr, exec_addr, attr);
+        Py_END_ALLOW_THREADS
+        if(e) return riscos_oserror();
+    }
 
-	Py_INCREF(Py_None);
-	return Py_None;
+    Py_INCREF(Py_None);
+    return Py_None;
 }
 
 static PyObject *
 riscos_settype(PyObject *self, PyObject *args)
 {
-	char *path,*name;
+    char *path,*name;
     int type;
-	if (!PyArg_ParseTuple(args, "si:settype", &path,&type))
-	{
+    if (!PyArg_ParseTuple(args, "si:settype", &path,&type))
+    {
       PyErr_Clear();
-	  if (!PyArg_ParseTuple(args, "ss:settype", &path,&name)) return NULL;
-	  e=xosfscontrol_file_type_from_string(name,(bits*)&type);
-	  if(e) return riscos_oserror();
-	}
+      if (!PyArg_ParseTuple(args, "ss:settype", &path,&name)) return NULL;
+      e=xosfscontrol_file_type_from_string(name,(bits*)&type);
+      if(e) return riscos_oserror();
+    }
     e=xosfile_set_type(path,type);
     if(e) return riscos_oserror();
-	Py_INCREF(Py_None);
-	return Py_None;
+    Py_INCREF(Py_None);
+    return Py_None;
 }
 
 static PyObject *
@@ -368,7 +368,7 @@
   if (!dict) return NULL;
   /* XXX This part ignores errors */
   while(!xos_read_var_val(which,value,sizeof(value)-1,(int)context,
-         os_VARTYPE_EXPANDED,&size,(int *)&context,0))
+     os_VARTYPE_EXPANDED,&size,(int *)&context,0))
   { PyObject *v;
     value[size]='\0';
     v = PyString_FromString(value);
@@ -381,32 +381,32 @@
 
 static PyMethodDef riscos_methods[] = {
 
-	{"unlink",	riscos_remove, METH_VARARGS},
+    {"unlink",          riscos_remove, METH_VARARGS},
     {"remove",  riscos_remove, METH_VARARGS},
-	{"rename",	riscos_rename, METH_VARARGS},
-	{"system",	riscos_system, METH_VARARGS},
-	{"rmdir",	riscos_remove, METH_VARARGS},
-	{"chdir",	riscos_chdir,  METH_VARARGS},
-	{"getcwd",	riscos_getcwd, METH_NOARGS},
-	{"expand",  riscos_expand, METH_VARARGS},
-	{"mkdir",	riscos_mkdir,  METH_VARARGS},
-	{"listdir",	riscos_listdir, METH_VARARGS},
-	{"stat",	riscos_stat,   METH_VARARGS},
-	{"lstat",	riscos_stat,   METH_VARARGS},
-    {"chmod",	riscos_chmod,  METH_VARARGS},
-	{"utime",	riscos_utime,  METH_VARARGS},
-	{"settype",	riscos_settype, METH_VARARGS},
-	{"getenv",  riscos_getenv, METH_VARARGS},
-	{"putenv",  riscos_putenv, METH_VARARGS},
-	{"delenv",  riscos_delenv, METH_VARARGS},
-	{"getenvdict", riscos_getenvdict, METH_VARARGS},
-	{NULL,		NULL}		 /* Sentinel */
+    {"rename",          riscos_rename, METH_VARARGS},
+    {"system",          riscos_system, METH_VARARGS},
+    {"rmdir",           riscos_remove, METH_VARARGS},
+    {"chdir",           riscos_chdir,  METH_VARARGS},
+    {"getcwd",          riscos_getcwd, METH_NOARGS},
+    {"expand",  riscos_expand, METH_VARARGS},
+    {"mkdir",           riscos_mkdir,  METH_VARARGS},
+    {"listdir",         riscos_listdir, METH_VARARGS},
+    {"stat",            riscos_stat,   METH_VARARGS},
+    {"lstat",           riscos_stat,   METH_VARARGS},
+    {"chmod",   riscos_chmod,  METH_VARARGS},
+    {"utime",           riscos_utime,  METH_VARARGS},
+    {"settype",         riscos_settype, METH_VARARGS},
+    {"getenv",  riscos_getenv, METH_VARARGS},
+    {"putenv",  riscos_putenv, METH_VARARGS},
+    {"delenv",  riscos_delenv, METH_VARARGS},
+    {"getenvdict", riscos_getenvdict, METH_VARARGS},
+    {NULL,              NULL}            /* Sentinel */
 };
 
 static int
 ins(PyObject *module, char *symbol, long value)
 {
-	return PyModule_AddIntConstant(module, symbol, value);
+    return PyModule_AddIntConstant(module, symbol, value);
 }
 
 
@@ -414,190 +414,190 @@
 all_ins(PyObject *d)
 {
 #ifdef F_OK
-        if (ins(d, "F_OK", (long)F_OK)) return -1;
+    if (ins(d, "F_OK", (long)F_OK)) return -1;
 #endif
 #ifdef R_OK
-        if (ins(d, "R_OK", (long)R_OK)) return -1;
+    if (ins(d, "R_OK", (long)R_OK)) return -1;
 #endif
 #ifdef W_OK
-        if (ins(d, "W_OK", (long)W_OK)) return -1;
+    if (ins(d, "W_OK", (long)W_OK)) return -1;
 #endif
 #ifdef X_OK
-        if (ins(d, "X_OK", (long)X_OK)) return -1;
+    if (ins(d, "X_OK", (long)X_OK)) return -1;
 #endif
 #ifdef NGROUPS_MAX
-        if (ins(d, "NGROUPS_MAX", (long)NGROUPS_MAX)) return -1;
+    if (ins(d, "NGROUPS_MAX", (long)NGROUPS_MAX)) return -1;
 #endif
 #ifdef TMP_MAX
-        if (ins(d, "TMP_MAX", (long)TMP_MAX)) return -1;
+    if (ins(d, "TMP_MAX", (long)TMP_MAX)) return -1;
 #endif
 #ifdef WCONTINUED
-        if (ins(d, "WCONTINUED", (long)WCONTINUED)) return -1;
+    if (ins(d, "WCONTINUED", (long)WCONTINUED)) return -1;
 #endif
 #ifdef WNOHANG
-        if (ins(d, "WNOHANG", (long)WNOHANG)) return -1;
+    if (ins(d, "WNOHANG", (long)WNOHANG)) return -1;
 #endif
 #ifdef WUNTRACED
-        if (ins(d, "WUNTRACED", (long)WUNTRACED)) return -1;
+    if (ins(d, "WUNTRACED", (long)WUNTRACED)) return -1;
 #endif
 #ifdef O_RDONLY
-        if (ins(d, "O_RDONLY", (long)O_RDONLY)) return -1;
+    if (ins(d, "O_RDONLY", (long)O_RDONLY)) return -1;
 #endif
 #ifdef O_WRONLY
-        if (ins(d, "O_WRONLY", (long)O_WRONLY)) return -1;
+    if (ins(d, "O_WRONLY", (long)O_WRONLY)) return -1;
 #endif
 #ifdef O_RDWR
-        if (ins(d, "O_RDWR", (long)O_RDWR)) return -1;
+    if (ins(d, "O_RDWR", (long)O_RDWR)) return -1;
 #endif
 #ifdef O_NDELAY
-        if (ins(d, "O_NDELAY", (long)O_NDELAY)) return -1;
+    if (ins(d, "O_NDELAY", (long)O_NDELAY)) return -1;
 #endif
 #ifdef O_NONBLOCK
-        if (ins(d, "O_NONBLOCK", (long)O_NONBLOCK)) return -1;
+    if (ins(d, "O_NONBLOCK", (long)O_NONBLOCK)) return -1;
 #endif
 #ifdef O_APPEND
-        if (ins(d, "O_APPEND", (long)O_APPEND)) return -1;
+    if (ins(d, "O_APPEND", (long)O_APPEND)) return -1;
 #endif
 #ifdef O_DSYNC
-        if (ins(d, "O_DSYNC", (long)O_DSYNC)) return -1;
+    if (ins(d, "O_DSYNC", (long)O_DSYNC)) return -1;
 #endif
 #ifdef O_RSYNC
-        if (ins(d, "O_RSYNC", (long)O_RSYNC)) return -1;
+    if (ins(d, "O_RSYNC", (long)O_RSYNC)) return -1;
 #endif
 #ifdef O_SYNC
-        if (ins(d, "O_SYNC", (long)O_SYNC)) return -1;
+    if (ins(d, "O_SYNC", (long)O_SYNC)) return -1;
 #endif
 #ifdef O_NOCTTY
-        if (ins(d, "O_NOCTTY", (long)O_NOCTTY)) return -1;
+    if (ins(d, "O_NOCTTY", (long)O_NOCTTY)) return -1;
 #endif
 #ifdef O_CREAT
-        if (ins(d, "O_CREAT", (long)O_CREAT)) return -1;
+    if (ins(d, "O_CREAT", (long)O_CREAT)) return -1;
 #endif
 #ifdef O_EXCL
-        if (ins(d, "O_EXCL", (long)O_EXCL)) return -1;
+    if (ins(d, "O_EXCL", (long)O_EXCL)) return -1;
 #endif
 #ifdef O_TRUNC
-        if (ins(d, "O_TRUNC", (long)O_TRUNC)) return -1;
+    if (ins(d, "O_TRUNC", (long)O_TRUNC)) return -1;
 #endif
 #ifdef O_BINARY
-        if (ins(d, "O_BINARY", (long)O_BINARY)) return -1;
+    if (ins(d, "O_BINARY", (long)O_BINARY)) return -1;
 #endif
 #ifdef O_TEXT
-        if (ins(d, "O_TEXT", (long)O_TEXT)) return -1;
+    if (ins(d, "O_TEXT", (long)O_TEXT)) return -1;
 #endif
 #ifdef O_LARGEFILE
-        if (ins(d, "O_LARGEFILE", (long)O_LARGEFILE)) return -1;
+    if (ins(d, "O_LARGEFILE", (long)O_LARGEFILE)) return -1;
 #endif
 
 /* MS Windows */
 #ifdef O_NOINHERIT
-	/* Don't inherit in child processes. */
-        if (ins(d, "O_NOINHERIT", (long)O_NOINHERIT)) return -1;
+    /* Don't inherit in child processes. */
+    if (ins(d, "O_NOINHERIT", (long)O_NOINHERIT)) return -1;
 #endif
 #ifdef _O_SHORT_LIVED
-	/* Optimize for short life (keep in memory). */
-	/* MS forgot to define this one with a non-underscore form too. */
-        if (ins(d, "O_SHORT_LIVED", (long)_O_SHORT_LIVED)) return -1;
+    /* Optimize for short life (keep in memory). */
+    /* MS forgot to define this one with a non-underscore form too. */
+    if (ins(d, "O_SHORT_LIVED", (long)_O_SHORT_LIVED)) return -1;
 #endif
 #ifdef O_TEMPORARY
-	/* Automatically delete when last handle is closed. */
-        if (ins(d, "O_TEMPORARY", (long)O_TEMPORARY)) return -1;
+    /* Automatically delete when last handle is closed. */
+    if (ins(d, "O_TEMPORARY", (long)O_TEMPORARY)) return -1;
 #endif
 #ifdef O_RANDOM
-	/* Optimize for random access. */
-        if (ins(d, "O_RANDOM", (long)O_RANDOM)) return -1;
+    /* Optimize for random access. */
+    if (ins(d, "O_RANDOM", (long)O_RANDOM)) return -1;
 #endif
 #ifdef O_SEQUENTIAL
-	/* Optimize for sequential access. */
-        if (ins(d, "O_SEQUENTIAL", (long)O_SEQUENTIAL)) return -1;
+    /* Optimize for sequential access. */
+    if (ins(d, "O_SEQUENTIAL", (long)O_SEQUENTIAL)) return -1;
 #endif
 
 /* GNU extensions. */
 #ifdef O_DIRECT
-        /* Direct disk access. */
-        if (ins(d, "O_DIRECT", (long)O_DIRECT)) return -1;
+    /* Direct disk access. */
+    if (ins(d, "O_DIRECT", (long)O_DIRECT)) return -1;
 #endif
 #ifdef O_DIRECTORY
-        /* Must be a directory.	 */
-        if (ins(d, "O_DIRECTORY", (long)O_DIRECTORY)) return -1;
+    /* Must be a directory.      */
+    if (ins(d, "O_DIRECTORY", (long)O_DIRECTORY)) return -1;
 #endif
 #ifdef O_NOFOLLOW
-        /* Do not follow links.	 */
-        if (ins(d, "O_NOFOLLOW", (long)O_NOFOLLOW)) return -1;
+    /* Do not follow links.      */
+    if (ins(d, "O_NOFOLLOW", (long)O_NOFOLLOW)) return -1;
 #endif
 
-	/* These come from sysexits.h */
+    /* These come from sysexits.h */
 #ifdef EX_OK
-	if (ins(d, "EX_OK", (long)EX_OK)) return -1;
+    if (ins(d, "EX_OK", (long)EX_OK)) return -1;
 #endif /* EX_OK */
 #ifdef EX_USAGE
-	if (ins(d, "EX_USAGE", (long)EX_USAGE)) return -1;
+    if (ins(d, "EX_USAGE", (long)EX_USAGE)) return -1;
 #endif /* EX_USAGE */
 #ifdef EX_DATAERR
-	if (ins(d, "EX_DATAERR", (long)EX_DATAERR)) return -1;
+    if (ins(d, "EX_DATAERR", (long)EX_DATAERR)) return -1;
 #endif /* EX_DATAERR */
 #ifdef EX_NOINPUT
-	if (ins(d, "EX_NOINPUT", (long)EX_NOINPUT)) return -1;
+    if (ins(d, "EX_NOINPUT", (long)EX_NOINPUT)) return -1;
 #endif /* EX_NOINPUT */
 #ifdef EX_NOUSER
-	if (ins(d, "EX_NOUSER", (long)EX_NOUSER)) return -1;
+    if (ins(d, "EX_NOUSER", (long)EX_NOUSER)) return -1;
 #endif /* EX_NOUSER */
 #ifdef EX_NOHOST
-	if (ins(d, "EX_NOHOST", (long)EX_NOHOST)) return -1;
+    if (ins(d, "EX_NOHOST", (long)EX_NOHOST)) return -1;
 #endif /* EX_NOHOST */
 #ifdef EX_UNAVAILABLE
-	if (ins(d, "EX_UNAVAILABLE", (long)EX_UNAVAILABLE)) return -1;
+    if (ins(d, "EX_UNAVAILABLE", (long)EX_UNAVAILABLE)) return -1;
 #endif /* EX_UNAVAILABLE */
 #ifdef EX_SOFTWARE
-	if (ins(d, "EX_SOFTWARE", (long)EX_SOFTWARE)) return -1;
+    if (ins(d, "EX_SOFTWARE", (long)EX_SOFTWARE)) return -1;
 #endif /* EX_SOFTWARE */
 #ifdef EX_OSERR
-	if (ins(d, "EX_OSERR", (long)EX_OSERR)) return -1;
+    if (ins(d, "EX_OSERR", (long)EX_OSERR)) return -1;
 #endif /* EX_OSERR */
 #ifdef EX_OSFILE
-	if (ins(d, "EX_OSFILE", (long)EX_OSFILE)) return -1;
+    if (ins(d, "EX_OSFILE", (long)EX_OSFILE)) return -1;
 #endif /* EX_OSFILE */
 #ifdef EX_CANTCREAT
-	if (ins(d, "EX_CANTCREAT", (long)EX_CANTCREAT)) return -1;
+    if (ins(d, "EX_CANTCREAT", (long)EX_CANTCREAT)) return -1;
 #endif /* EX_CANTCREAT */
 #ifdef EX_IOERR
-	if (ins(d, "EX_IOERR", (long)EX_IOERR)) return -1;
+    if (ins(d, "EX_IOERR", (long)EX_IOERR)) return -1;
 #endif /* EX_IOERR */
 #ifdef EX_TEMPFAIL
-	if (ins(d, "EX_TEMPFAIL", (long)EX_TEMPFAIL)) return -1;
+    if (ins(d, "EX_TEMPFAIL", (long)EX_TEMPFAIL)) return -1;
 #endif /* EX_TEMPFAIL */
 #ifdef EX_PROTOCOL
-	if (ins(d, "EX_PROTOCOL", (long)EX_PROTOCOL)) return -1;
+    if (ins(d, "EX_PROTOCOL", (long)EX_PROTOCOL)) return -1;
 #endif /* EX_PROTOCOL */
 #ifdef EX_NOPERM
-	if (ins(d, "EX_NOPERM", (long)EX_NOPERM)) return -1;
+    if (ins(d, "EX_NOPERM", (long)EX_NOPERM)) return -1;
 #endif /* EX_NOPERM */
 #ifdef EX_CONFIG
-	if (ins(d, "EX_CONFIG", (long)EX_CONFIG)) return -1;
+    if (ins(d, "EX_CONFIG", (long)EX_CONFIG)) return -1;
 #endif /* EX_CONFIG */
 #ifdef EX_NOTFOUND
-	if (ins(d, "EX_NOTFOUND", (long)EX_NOTFOUND)) return -1;
+    if (ins(d, "EX_NOTFOUND", (long)EX_NOTFOUND)) return -1;
 #endif /* EX_NOTFOUND */
 
-        return 0;
+    return 0;
 }
 
 
 void
 initriscos()
 {
-	PyObject *m, *d, *stat_m;
+    PyObject *m, *d, *stat_m;
 
-	m = Py_InitModule("riscos", riscos_methods);
+    m = Py_InitModule("riscos", riscos_methods);
 
-	if (all_ins(m))
-		return;
+    if (all_ins(m))
+        return;
 
-	d = PyModule_GetDict(m);
+    d = PyModule_GetDict(m);
 
-	Py_INCREF(PyExc_OSError);
-	PyModule_AddObject(m, "error", PyExc_OSError);
+    Py_INCREF(PyExc_OSError);
+    PyModule_AddObject(m, "error", PyExc_OSError);
 
-	PyStructSequence_InitType(&StatResultType, &stat_result_desc);
-	PyDict_SetItemString(d, "stat_result", (PyObject*) &StatResultType);
+    PyStructSequence_InitType(&StatResultType, &stat_result_desc);
+    PyDict_SetItemString(d, "stat_result", (PyObject*) &StatResultType);
 }