From d32bc9ea234940f528cf93b62d9c1cbc612255c8 Mon Sep 17 00:00:00 2001
From: Kornel <kornel@geekhood.net>
Date: Tue, 8 Aug 2017 14:30:53 +0100
Subject: [PATCH] 10.7/10.8 compatibility features

---
 README.md                      | 6 ++++++
 core-foundation-sys/Cargo.toml | 4 ++++
 core-foundation/Cargo.toml     | 4 ++++
 3 files changed, 14 insertions(+)

diff --git a/README.md b/README.md
index ce0909a..d36ff53 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,9 @@
 # core-foundation-rs
 
 [![Build Status](https://travis-ci.org/servo/core-foundation-rs.svg?branch=master)](https://travis-ci.org/servo/core-foundation-rs)
+
+## Compatibility
+
+By default it targets macOS 10.7.
+
+To enable features added in macOS 10.8, set Cargo feature `mac_os_10_8_features`. To have both 10.8 features and 10.7 compatibility, also set `mac_os_10_7_support`. Setting both requires weak linkage, which is is a nighty-only feature as of Rust 1.19.
diff --git a/core-foundation-sys/Cargo.toml b/core-foundation-sys/Cargo.toml
index f1dd3e3..5a02fc4 100644
--- a/core-foundation-sys/Cargo.toml
+++ b/core-foundation-sys/Cargo.toml
@@ -10,3 +10,7 @@ build = "build.rs"
 
 [dependencies]
 libc = "0.2"
+
+[features]
+mac_os_10_7_support = [] # backwards compatibility
+mac_os_10_8_features = [] # enables new features
diff --git a/core-foundation/Cargo.toml b/core-foundation/Cargo.toml
index e338b16..0bbf669 100644
--- a/core-foundation/Cargo.toml
+++ b/core-foundation/Cargo.toml
@@ -13,3 +13,7 @@ version = "0.4.2"
 
 [dependencies]
 libc = "0.2"
+
+[features]
+mac_os_10_7_support = ["core-foundation-sys/mac_os_10_7_support"] # backwards compatibility
+mac_os_10_8_features = ["core-foundation-sys/mac_os_10_8_features"] # enables new features