applied Hiltjo's cleanup patch

diff --git a/dwm.c b/dwm.c
index 0a23e5a..d171fe2 100644 (file)
--- a/dwm.c
+++ b/dwm.c
@@ -267,7 +267,6 @@ static void (*handler[LASTEvent]) (XEvent *) = {
        [UnmapNotify] = unmapnotify
 };
 static Atom wmatom[WMLast], netatom[NetLast];
-static Bool otherwm;
 static Bool running = True;
 static Cursor cursor[CurLast];
 static Display *dpy;
@@ -458,13 +457,10 @@ buttonpress(XEvent *e) {
 
 void
 checkotherwm(void) {
-       otherwm = False;
        xerrorxlib = XSetErrorHandler(xerrorstart);
        /* this causes an error if some other window manager is running */
        XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
        XSync(dpy, False);
-       if(otherwm)
-               die("dwm: another window manager is already running\n");
        XSetErrorHandler(xerror);
        XSync(dpy, False);
 }
@@ -994,12 +990,11 @@ initfont(const char *fontstr) {
                XFreeStringList(missing);
        }
        if(dc.font.set) {
-               XFontSetExtents *font_extents;
                XFontStruct **xfonts;
                char **font_names;
 
                dc.font.ascent = dc.font.descent = 0;
-               font_extents = XExtentsOfFontSet(dc.font.set);
+               XExtentsOfFontSet(dc.font.set);
                n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
                for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
                        dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
@@ -1088,14 +1083,12 @@ killclient(const Arg *arg) {
 
 void
 manage(Window w, XWindowAttributes *wa) {
-       static Client cz;
        Client *c, *t = NULL;
        Window trans = None;
        XWindowChanges wc;
 
-       if(!(c = malloc(sizeof(Client))))
+       if(!(c = calloc(1, sizeof(Client))))
                die("fatal: could not malloc() %u bytes\n", sizeof(Client));
-       *c = cz;
        c->win = w;
        updatetitle(c);
        if(XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
@@ -1579,7 +1572,6 @@ showhide(Client *c) {
        }
 }
 
-
 void
 sigchld(int unused) {
        if(signal(SIGCHLD, sigchld) == SIG_ERR)
@@ -2015,7 +2007,7 @@ xerrordummy(Display *dpy, XErrorEvent *ee) {
  * is already running. */
 int
 xerrorstart(Display *dpy, XErrorEvent *ee) {
-       otherwm = True;
+       die("dwm: another window manager is already running\n");
        return -1;
 }