Updated README

README.md

@@ -45,8 +45,8 @@ Supported Platforms
 
 The only requirement to use Async++ is a C++11 compiler and standard library. Unfortunately C++11 is not yet fully implemented on most platforms. Here is the list of OS and compiler combinations which are known to work.
 
-- Linux: GCC 4.7+ and Clang 3.2+ both work.
-- Mac: Not tested yet, but it should work with the latest Clang and GCC 4.7+.
+- Linux: GCC 4.7+ and Clang 3.2+ work.
+- Mac: Works with Apple Clang (using libc++). GCC also works but you must get a recent version (4.7+).
 - Windows: GCC 4.8+ with posix threads works. MSVC and Intel compilers are not supported.
 
 Building and Installing