From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Fri, 6 May 2022 00:42:13 +0000 (-0700)
Subject: smyrna: squash -Wunused-parameter warnings for GLUT callbacks
X-Git-Tag: 5.0.0~32^2~5
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=423e8e13d7a22a9ee64cb152dadcdc91f8093c7b;p=graphviz

smyrna: squash -Wunused-parameter warnings for GLUT callbacks

These functions need to conform to a particular type signature.
---

diff --git a/cmd/smyrna/glutrender.c b/cmd/smyrna/glutrender.c
index 5c758ad0c..941f3babc 100644
--- a/cmd/smyrna/glutrender.c
+++ b/cmd/smyrna/glutrender.c
@@ -151,6 +151,9 @@ static void cb_drag(int X, int Y)
 
 static void cb_keyboard(unsigned char key, int x, int y)
 {
+    (void)x;
+    (void)y;
+
     if (key==27)    /*ESC*/
 	graphviz_exit(1);
     if(key=='3')
@@ -172,12 +175,17 @@ static void cb_keyboard(unsigned char key, int x, int y)
 static void cb_keyboard_up(unsigned char key, int x, int y)
 {
     (void)key;
+    (void)x;
+    (void)y;
 
     appmouse_key_release(view);
 }
 
 static void cb_special_key(int key, int x, int y)
 {
+    (void)x;
+    (void)y;
+
     if(key==GLUT_KEY_F1)
     {
 	printf("Currently help is not available\n");
@@ -188,6 +196,9 @@ static void cb_special_key(int key, int x, int y)
 
 static void cb_special_key_up(int key, int x, int y)
 {
+    (void)x;
+    (void)y;
+
     if(key==GLUT_KEY_F1)
     {
 	printf("Currently help is not available\n");