glutMouseWheelFunc is linux-only.

glut.rs

@@ -9,7 +9,7 @@
 
 /* automatically generated by rust-bindgen */
 
-use glut::bindgen::{glutCreateWindow, glutDestroyWindow, glutDisplayFunc, glutMouseFunc, glutMouseWheelFunc};
+use glut::bindgen::{glutCreateWindow, glutDestroyWindow, glutDisplayFunc, glutMouseFunc};
 use glut::bindgen::{glutKeyboardFunc, glutGetModifiers, glutMotionFunc, glutPassiveMotionFunc};
 use glut::bindgen::{glutGet, glutGetWindow};
 use glut::bindgen::{glutInit, glutInitDisplayMode, glutPostRedisplay, glutReshapeFunc};
@@ -22,6 +22,9 @@ use core::str::to_bytes;
 use core::cast::transmute;
 use core::vec::raw::to_ptr;
 
+#[cfg(target_os="linux")]
+use glut::bindgen::glutMouseWheelFunc;
+
 /* FIXME: global variable glutStrokeRoman */
 
 /* FIXME: global variable glutStrokeMonoRoman */
@@ -489,6 +492,7 @@ pub fn glutKeyboardFunc(func: *u8);
 
 pub fn glutMouseFunc(func: *u8);
 
+#[cfg(target_os="linux")]
 pub fn glutMouseWheelFunc(func: *u8);
 
 pub fn glutMotionFunc(func: *u8);