Advice about compiler versions in README requirements section

Change-Id: I21d7f8c4fd562e74d3ab649780456a59716d18d4

diff --git a/README.md b/README.md
index 0c20358..01c32a9 100644 (file)
--- a/README.md
+++ b/README.md
@@ -16,10 +16,17 @@
 
 ## 1. Building for Ubuntu desktop
 
-### Minimum Requirements
+### Requirements
 
  - Ubuntu 14.04 or later
  - Environment created using dali_env script in dali-core repository
+ - GCC version 6
+
+DALi requires a compiler supporting C++11 features.
+Ubuntu 16.04 is the first version to offer this by default (GCC v5.4.0).
+
+GCC version 6 is recommended since it has fixes for issues in version 5
+e.g. it avoids spurious 'defined but not used' warnings in header files.
 
 ### Building the Repository