Silence warnings

src/util/common.c

@@ -362,8 +362,12 @@ pid_t tint_exec(const char *command,
         // Allow children to exist after parent destruction
         setsid();
         // Run the command
-        if (dir)
-            chdir(dir);
+        if (dir) {
+            int ret = chdir(dir);
+            if (ret != 0) {
+                fprintf(stderr, "tint2: failed to chdir to %s\n", dir);
+            }
+        }
         close_all_fds();
         reset_signals();
         if (terminal) {

src/util/server.c

@@ -36,8 +36,9 @@
 
 Server server;
 
-void server_catch_error(Display *d, XErrorEvent *ev)
+int server_catch_error(Display *d, XErrorEvent *ev)
 {
+    return 0;
 }
 
 void server_init_atoms()
@@ -676,9 +677,10 @@ void handle_crash(const char *reason)
 #endif
 }
 
-void x11_io_error(Display *display)
+int x11_io_error(Display *display)
 {
     handle_crash("X11 I/O error");
+    return 0;
 }
 
 #ifdef HAVE_SN

src/util/server.h

@@ -164,12 +164,12 @@ void send_event32(Window win, Atom at, long data1, long data2, long data3);
 int get_property32(Window win, Atom at, Atom type);
 void *server_get_property(Window win, Atom at, Atom type, int *num_results);
 Atom server_get_atom(char *atom_name);
-void server_catch_error(Display *d, XErrorEvent *ev);
+int server_catch_error(Display *d, XErrorEvent *ev);
 void server_init_atoms();
 void server_init_visual();
 void server_init_xdamage();
 
-void x11_io_error(Display *display);
+int x11_io_error(Display *display);
 void handle_crash(const char *reason);
 
 // detect root background