From bcf4e71312a2e5693aee2613f187a43f87c38a09 Mon Sep 17 00:00:00 2001
From: Alexander Sulfrian <alexander@sulfrian.net>
Date: Sun, 8 Jul 2012 02:10:53 +0200
Subject: exit with error if RandR is unavailable

---
 xrandr-notify.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/xrandr-notify.c b/xrandr-notify.c
index 3c1ad52..fc8e60d 100644
--- a/xrandr-notify.c
+++ b/xrandr-notify.c
@@ -23,15 +23,18 @@ int main(int argc, char **argv)
     has_randr = false;
     has_randr = XRRQueryExtension(dpy, &randr_event_base, &dummy);
 
-    if (has_randr) {
-        /* Get root window */
-        screen = DefaultScreen(dpy) ;
-        root = RootWindow(dpy, screen) ;
-
-        /* Notify on configuration change */
-        XRRSelectInput(dpy, root, RRScreenChangeNotifyMask);
+    if (!has_randr) {
+        fputs("ERROR: RandR extension unavailable on current screen!\n", stderr);
+        return EXIT_FAILURE;
     }
 
+    /* Get root window */
+    screen = DefaultScreen(dpy) ;
+    root = RootWindow(dpy, screen) ;
+
+    /* Notify on configuration change */
+    XRRSelectInput(dpy, root, RRScreenChangeNotifyMask);
+
     while (true) {
         XNextEvent(dpy, &event);
 
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