diff --git a/io-surface/Cargo.toml b/io-surface/Cargo.toml
index 9215da70b..6a80ea999 100644
--- a/io-surface/Cargo.toml
+++ b/io-surface/Cargo.toml
@@ -10,9 +10,13 @@ license = "MIT / Apache-2.0"
 [package.metadata.docs.rs]
 default-target = "x86_64-apple-darwin"
 
+[features]
+default = ["gl"]
+gl = ["cgl", "leaky-cow"]
+
 [dependencies]
 libc = "0.2"
 core-foundation = { path = "../core-foundation", version = "0.9" }
 core-foundation-sys = { path = "../core-foundation-sys", version = "0.8" }
-cgl = "0.3"
-leaky-cow = "0.1.1"
+cgl = {version = "0.3", optional = true }
+leaky-cow = {version = "0.1.1", optional = true }
diff --git a/io-surface/src/lib.rs b/io-surface/src/lib.rs
index 4bf687d73..81a0cd485 100644
--- a/io-surface/src/lib.rs
+++ b/io-surface/src/lib.rs
@@ -13,7 +13,9 @@
 extern crate libc;
 extern crate core_foundation;
 extern crate core_foundation_sys;
+#[cfg(feature = "gl")]
 extern crate cgl;
+#[cfg(feature = "gl")]
 extern crate leaky_cow;
 
 // Rust bindings to the IOSurface framework on macOS.
@@ -22,17 +24,25 @@ use core_foundation::base::{CFRelease, CFRetain, CFTypeID, CFTypeRef, CFType, TC
 use core_foundation::dictionary::{CFDictionary, CFDictionaryRef};
 use core_foundation::string::{CFString, CFStringRef};
 use core_foundation_sys::base::mach_port_t;
+#[cfg(feature = "gl")]
 use cgl::{kCGLNoError, CGLGetCurrentContext, CGLTexImageIOSurface2D, CGLErrorString, GLenum};
 use libc::{c_int, size_t};
 use std::os::raw::c_void;
+#[cfg(feature = "gl")]
 use leaky_cow::LeakyCow;
 use std::slice;
+#[cfg(feature = "gl")]
 use std::ffi::CStr;
 
+#[cfg(feature = "gl")]
 const BGRA: GLenum = 0x80E1;
+#[cfg(feature = "gl")]
 const RGBA: GLenum = 0x1908;
+#[cfg(feature = "gl")]
 const RGB: GLenum = 0x1907;
+#[cfg(feature = "gl")]
 const TEXTURE_RECTANGLE_ARB: GLenum = 0x84F5;
+#[cfg(feature = "gl")]
 const UNSIGNED_INT_8_8_8_8_REV: GLenum = 0x8367;
 
 #[allow(non_snake_case)]
@@ -131,6 +141,7 @@ impl IOSurface {
     }
 
     /// Binds to the current GL texture.
+    #[cfg(feature = "gl")]
     pub fn bind_to_gl_texture(&self, width: i32, height: i32, has_alpha: bool) {
         unsafe {
             let context = CGLGetCurrentContext();