diff -r 356e91aad027 config.def.h
--- a/config.def.h	Fri Oct 26 10:42:22 2007 +0200
+++ b/config.def.h	Sat Oct 27 13:51:23 2007 +0200
@@ -22,7 +22,6 @@ Rule rules[] = {
 };
 
 /* layout(s) */
-#define ISTILE			isarrange(tile) /* || isarrange(<custom>) */
 #define MWFACT			0.6	/* master width factor [0.1 .. 0.9] */
 #define SNAP			32	/* snap pixel */
 Layout layouts[] = {
diff -r 356e91aad027 dwm.c
--- a/dwm.c	Fri Oct 26 10:42:22 2007 +0200
+++ b/dwm.c	Sat Oct 27 13:51:23 2007 +0200
@@ -217,6 +217,7 @@ void (*handler[LASTEvent]) (XEvent *) = 
 	[UnmapNotify] = unmapnotify
 };
 Atom wmatom[WMLast], netatom[NetLast];
+Bool istile;
 Bool otherwm, readin;
 Bool running = True;
 Bool selscreen = True;
@@ -345,7 +346,7 @@ buttonpress(XEvent *e) {
 			movemouse(c);
 		}
 		else if(ev->button == Button2) {
-			if((ISTILE) && !c->isfixed && c->isfloating)
+			if(istile && !c->isfixed && c->isfloating)
 				togglefloating(NULL);
 			else
 				zoom(NULL);
@@ -680,6 +681,7 @@ floating(void) { /* default floating lay
 floating(void) { /* default floating layout */
 	Client *c;
 
+	istile = False;
 	for(c = clients; c; c = c->next)
 		if(isvisible(c))
 			resize(c, c->x, c->y, c->w, c->h, True);
@@ -1316,6 +1318,7 @@ run(void) {
 	XSync(dpy, False);
 	xfd = ConnectionNumber(dpy);
 	readin = True;
+	istile = False;
 	while(running) {
 		FD_ZERO(&rd);
 		if(readin)
@@ -1414,7 +1417,7 @@ setmwfact(const char *arg) {
 setmwfact(const char *arg) {
 	double delta;
 
-	if(!(ISTILE))
+	if(!istile)
 		return;
 	/* arg handling, manipulate mwfact */
 	if(arg == NULL)
@@ -1580,6 +1583,7 @@ tile(void) {
 tile(void) {
 	unsigned int i, n, nx, ny, nw, nh, mw, th;
 	Client *c, *mc;
+	istile = True;
 
 	for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 		n++;
@@ -1874,7 +1878,7 @@ zoom(const char *arg) {
 zoom(const char *arg) {
 	Client *c;
 
-	if(!sel || !(ISTILE) || sel->isfloating)
+	if(!sel || !istile || sel->isfloating)
 		return;
 	if((c = sel) == nexttiled(clients))
 		if(!(c = nexttiled(c->next)))
diff -r 356e91aad027 stack.c
--- a/stack.c	Fri Oct 26 10:42:22 2007 +0200
+++ b/stack.c	Sat Oct 27 13:51:23 2007 +0200
@@ -4,6 +4,7 @@ dostack(void) {
 	int mh, th;
 	Client *c;
 
+	istile = True;
 	for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 		n++;
 	/* window geoms */