Add a proper error message if connection to the X server can’t be established

diff --git a/src/mainx.c b/src/mainx.c
index c0fb65817670bcf5b9d13abe45c94aa37f48367c..cadd51252f97c9dc894ccb18511f7b2a60ee88fb 100644 (file)
--- a/src/mainx.c
+++ b/src/mainx.c
@@ -144,6 +144,9 @@ int main(int argc, char *argv[], char *env[]) {
 
         conn = xcb_connect(NULL, &screens);
 
+        if (xcb_connection_has_error(conn))
+                die("Cannot open display\n");
+
         load_configuration(conn, override_configpath);
 
         /* Place requests for the atoms we need as soon as possible */