I must respectfully disagree. It's not easy at all. A new user would probably start with:
http://www.boost.org/doc/libs/1_39_0/more/getting_started/index.html
From there quickly jump to:
http://www.boost.org/doc/libs/1_39_0/more/getting_started/unix-variants.html
while skimming through, trying not to become frustrated with the bewildering wealth of information there, thinking "what is the damn command that is equivalent to just make?", I don't think he would ever know to look at http://www.boost.org/doc/libs/1_39_0/libs/regex/doc/html/boost_regex/install.... It certainly didn't occur to me.
Then where did you get ICU_PATH from? It's not mentioned in the getting-started guide, and the message emitted by bjam if you build without ICU support (ie by following the getting started guide) is: warning: Building Boost.Regex with the optional Unicode/ICU support disabled. note: Please refer to the Boost.Regex documentation for more information note: this is a strictly optional feature. Then this clearly directs you to the regex lib docs. But if we can do better.... ??? Regards, John.