readme: added g++ requirement

Signed-off-by: Fedor Indutny <fedor@indutny.com>

diff --git a/README.md b/README.md
index 12cf275..086590a 100644 (file)
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@ Evented I/O for V8 javascript.
 Prerequisites (Unix only):
 
     * GCC 4.2 or newer
+    * G++ 4.2 or newer
     * Python 2.6 or 2.7
     * GNU Make 3.81 or newer
     * libexecinfo (FreeBSD and OpenBSD only)