Mark arguments to catch_window_errors as unused

Arguments are required by the callback form, but not needed in this case.

Clears clang compliants:
xkill.c:328:30: warning: unused parameter 'dpy' [-Wunused-parameter]
catch_window_errors(Display *dpy, XErrorEvent *ev)
                             ^
xkill.c:328:48: warning: unused parameter 'ev' [-Wunused-parameter]
catch_window_errors(Display *dpy, XErrorEvent *ev)

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/configure.ac b/configure.ac
index 6b4bb5c..033d445 100644
--- a/configure.ac
+++ b/configure.ac
@@ -39,7 +39,7 @@ XORG_MACROS_VERSION(1.8)
 XORG_DEFAULT_OPTIONS
 
 # Checks for pkg-config packages
-PKG_CHECK_MODULES(XKILL, [x11 xmuu xproto >= 7.0.17])
+PKG_CHECK_MODULES(XKILL, [x11 xmuu xproto >= 7.0.22])
 
 AC_CONFIG_FILES([
 	Makefile
diff --git a/xkill.c b/xkill.c
index a4f5c48..9bbde1c 100644
--- a/xkill.c
+++ b/xkill.c
@@ -325,7 +325,7 @@ get_window_id(Display *dpy, int screen, int button, const char *msg)
 
 
 static int 
-catch_window_errors(Display *dpy, XErrorEvent *ev)
+catch_window_errors(_X_UNUSED Display *dpy, _X_UNUSED XErrorEvent *ev)
 {
     return 0;
 }