build-compiler.readme.txt

Currently, 01.02.2016 it is possible to compile full Clover package only
with gcc-4.9.

gcc-4.8 is possible but it is required reverted some changes in build scripts and settings. They are deep in history and I see no reason to do this.

Since April 2016 the best compilation is possible with XCODE5 toolset, so no more gcc-4.x needed.
Tested on Xcode 4.4.1 and Xcode 7.3.1

Slice.