X-Git-Url: https://jasonwoof.com/gitweb/?p=dwm.git;a=blobdiff_plain;f=dwm.c;h=e2f306c1e64fbf20bfee3a6a7dd3da5667b2d815;hp=e22ea7adbc0878931472e5424dde6b5fcc12d2b8;hb=8ef465d592fada11dab075bb7569239c03e3afa4;hpb=999d6e795f26f85e4b4b59adb7637ec067a9deee

diff --git a/dwm.c b/dwm.c
index e22ea7a..e2f306c 100644
--- a/dwm.c
+++ b/dwm.c
@@ -207,7 +207,7 @@ static void setlayout(const Arg *arg);
 static void setmfact(const Arg *arg);
 static void setup(void);
 static void showhide(Client *c);
-static void sigchld(int signal);
+static void sigchld(int unused);
 static void spawn(const Arg *arg);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
@@ -1428,6 +1428,9 @@ setup(void) {
 	int w;
 	XSetWindowAttributes wa;
 
+	/* clean up any zombies immediately */
+	sigchld(0);
+
 	/* init screen */
 	screen = DefaultScreen(dpy);
 	root = RootWindow(dpy, screen);
@@ -1496,13 +1499,14 @@ showhide(Client *c) {
 
 
 void
-sigchld(int signal) {
+sigchld(int unused) {
+	if(signal(SIGCHLD, sigchld) == SIG_ERR)
+		die("Can't install SIGCHLD handler");
 	while(0 < waitpid(-1, NULL, WNOHANG));
 }
 
 void
 spawn(const Arg *arg) {
-	signal(SIGCHLD, sigchld);
 	if(fork() == 0) {
 		if(dpy)
 			close(ConnectionNumber(dpy));
@@ -1688,10 +1692,16 @@ updategeom(void) {
 	Monitor *newmons = NULL, *m = NULL, *tm;
 
 #ifdef XINERAMA
+	int nn;
 	XineramaScreenInfo *info = NULL;
 
 	if(XineramaIsActive(dpy))
 		info = XineramaQueryScreens(dpy, &n);
+	for(i = 1, nn = n; i < n; i++)
+		if(info[i - 1].x_org == info[i].x_org && info[i - 1].y_org == info[i].y_org
+		&& info[i - 1].width == info[i].width && info[i - 1].height == info[i].height)
+			--nn;
+	n = nn; /* we only consider unique geometries as separate screens */
 #endif /* XINERAMA */
 	/* allocate monitor(s) for the new geometry setup */
 	for(i = 0; i < n; i++) {