Mark required arguments to Xlib error handler as unused

Quiets clang warnings:

xdpyinfo.c:151:24: warning: unused parameter 'dpy' [-Wunused-parameter]
silent_errors(Display *dpy, XErrorEvent *ev)
                       ^
xdpyinfo.c:151:42: warning: unused parameter 'ev' [-Wunused-parameter]
silent_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 37467ea..01a5dea 100644
--- a/configure.ac
+++ b/configure.ac
@@ -38,7 +38,7 @@ XORG_MACROS_VERSION(1.8)
 XORG_DEFAULT_OPTIONS
 
 # Checks for pkg-config packages
-PKG_CHECK_MODULES(XDPYINFO, [xext x11 xtst x11-xcb xcb xproto >= 7.0.17])
+PKG_CHECK_MODULES(XDPYINFO, [xext x11 xtst x11-xcb xcb xproto >= 7.0.22])
 
 # This is used below to allow <X11/Xlib.h> to be found
 PKG_CHECK_MODULES(DPY_X11, x11)
diff --git a/xdpyinfo.c b/xdpyinfo.c
index 2b94394..a0e0045 100644
--- a/xdpyinfo.c
+++ b/xdpyinfo.c
@@ -148,7 +148,7 @@ static char *ProgramName;
 static Bool queryExtensions = False;
 
 static int
-silent_errors(Display *dpy, XErrorEvent *ev)
+silent_errors(_X_UNUSED Display *dpy, _X_UNUSED XErrorEvent *ev)
 {
     return 0;
 }