applied Jukka's patch with s/ModKeyMask/MODKEY/g

client.c

@@ -239,11 +239,11 @@ manage(Window w, XWindowAttributes *wa)
 
 	XGrabButton(dpy, Button1, ControlMask, c->win, False, ButtonPressMask,
 			GrabModeAsync, GrabModeSync, None, None);
-	XGrabButton(dpy, Button1, Mod1Mask, c->win, False, ButtonPressMask,
+	XGrabButton(dpy, Button1, MODKEY, c->win, False, ButtonPressMask,
 			GrabModeAsync, GrabModeSync, None, None);
-	XGrabButton(dpy, Button2, Mod1Mask, c->win, False, ButtonPressMask,
+	XGrabButton(dpy, Button2, MODKEY, c->win, False, ButtonPressMask,
 			GrabModeAsync, GrabModeSync, None, None);
-	XGrabButton(dpy, Button3, Mod1Mask, c->win, False, ButtonPressMask,
+	XGrabButton(dpy, Button3, MODKEY, c->win, False, ButtonPressMask,
 			GrabModeAsync, GrabModeSync, None, None);
 
 	if(!c->isfloat)

config.mk

@@ -7,7 +7,7 @@ MANPREFIX = ${PREFIX}/share/man
 X11INC = /usr/X11R6/include
 X11LIB = /usr/X11R6/lib
 
-VERSION = 0.3
+VERSION = 0.4
 
 # includes and libs
 LIBS = -L${PREFIX}/lib -L/usr/lib -lc -L${X11LIB} -lX11

dwm.h

@@ -11,6 +11,7 @@
 #define BGCOLOR				"#0a2c2d"
 #define FGCOLOR				"#ddeeee"
 #define BORDERCOLOR			"#176164"
+#define MODKEY				 Mod1Mask /* Mod4Mask */
 /*
 #define BGCOLOR				"#666699"
 #define FGCOLOR				"#eeeeee"

event.c

@@ -26,30 +26,30 @@ Key key[] = {
 	{ ControlMask,			XK_1,		appendtag,	{ .i = Tdev } }, 
 	{ ControlMask,			XK_2,		appendtag,	{ .i = Twww } }, 
 	{ ControlMask,			XK_3,		appendtag,	{ .i = Twork } }, 
-	{ Mod1Mask,				XK_0,		view,		{ .i = Tscratch } }, 
+	{ MODKEY,				XK_0,		view,		{ .i = Tscratch } }, 
-	{ Mod1Mask,				XK_1,		view,		{ .i = Tdev } }, 
+	{ MODKEY,				XK_1,		view,		{ .i = Tdev } }, 
-	{ Mod1Mask,				XK_2,		view,		{ .i = Twww } }, 
+	{ MODKEY,				XK_2,		view,		{ .i = Twww } }, 
-	{ Mod1Mask,				XK_3,		view,		{ .i = Twork } }, 
+	{ MODKEY,				XK_3,		view,		{ .i = Twork } }, 
-	{ Mod1Mask,				XK_j,		focusnext,		{ 0 } }, 
+	{ MODKEY,				XK_j,		focusnext,		{ 0 } }, 
-	{ Mod1Mask,				XK_k,		focusprev,		{ 0 } },
+	{ MODKEY,				XK_k,		focusprev,		{ 0 } },
-	{ Mod1Mask,				XK_m,		maximize,		{ 0 } }, 
+	{ MODKEY,				XK_m,		maximize,		{ 0 } }, 
-	{ Mod1Mask,				XK_space,	dotile,		{ 0 } }, 
+	{ MODKEY,				XK_space,	dotile,		{ 0 } }, 
-	{ Mod1Mask,				XK_Return,	zoom,		{ 0 } },
+	{ MODKEY,				XK_Return,	zoom,		{ 0 } },
 	{ ControlMask|ShiftMask,XK_0,		heretag,	{ .i = Tscratch } }, 
 	{ ControlMask|ShiftMask,XK_1,		heretag,	{ .i = Tdev } }, 
 	{ ControlMask|ShiftMask,XK_2,		heretag,	{ .i = Twww } }, 
 	{ ControlMask|ShiftMask,XK_3,		heretag,	{ .i = Twork } }, 
-	{ Mod1Mask|ShiftMask,	XK_0,		replacetag,		{ .i = Tscratch } }, 
+	{ MODKEY|ShiftMask,		XK_0,		replacetag,		{ .i = Tscratch } }, 
-	{ Mod1Mask|ShiftMask,	XK_1,		replacetag,		{ .i = Tdev } }, 
+	{ MODKEY|ShiftMask,		XK_1,		replacetag,		{ .i = Tdev } }, 
-	{ Mod1Mask|ShiftMask,	XK_2,		replacetag,		{ .i = Twww } }, 
+	{ MODKEY|ShiftMask,		XK_2,		replacetag,		{ .i = Twww } }, 
-	{ Mod1Mask|ShiftMask,	XK_3,		replacetag,		{ .i = Twork } }, 
+	{ MODKEY|ShiftMask,		XK_3,		replacetag,		{ .i = Twork } }, 
-	{ Mod1Mask|ShiftMask,	XK_c,		killclient,		{ 0 } }, 
+	{ MODKEY|ShiftMask,		XK_c,		killclient,		{ 0 } }, 
-	{ Mod1Mask|ShiftMask,	XK_g,		spawn,		{ .argv = gimp } },
+	{ MODKEY|ShiftMask,		XK_g,		spawn,		{ .argv = gimp } },
-	{ Mod1Mask|ShiftMask,	XK_l,		spawn,		{ .argv = xlock } },
+	{ MODKEY|ShiftMask,		XK_l,		spawn,		{ .argv = xlock } },
-	{ Mod1Mask|ShiftMask,	XK_q,		quit,		{ 0 } },
+	{ MODKEY|ShiftMask,		XK_q,		quit,		{ 0 } },
-	{ Mod1Mask|ShiftMask,	XK_space,	dofloat,	{ 0 } }, 
+	{ MODKEY|ShiftMask,		XK_space,	dofloat,	{ 0 } }, 
-	{ Mod1Mask|ShiftMask,	XK_w,		spawn,		{ .argv = browse } },
+	{ MODKEY|ShiftMask,		XK_w,		spawn,		{ .argv = browse } },
-	{ Mod1Mask|ShiftMask,	XK_Return,	spawn,		{ .argv = term } },
+	{ MODKEY|ShiftMask,		XK_Return,	spawn,		{ .argv = term } },
 };
 
 /* static */