Used boost libraries

Much code in KlayGE depend on Boost. Here's the list of used libraries.

The used Boost libraries that must be built separately:

• Filesystem (Can be replaced by Filesystem TS's on VC12+.)
• Program Options (Only used in toolset.)
• Regex (Only used in toolset. No dependency on VC12+. Will be removed in KlayGE 4.10.)
• System (Not used directly. No dependency on VC12+.)
• Test (Only used in test)

Header-only Boost libraries:

• Algorithm/string
• Any (Library fundamentals TS)
• Assert
• Circular Buffer
• Container/flat_map
• Functional/Hash
• Lexical Cast
• Lock free
• Operators
• Optional (Library fundamentals TS)
• Signals2
• Utility/noncopyable

Items marked as bold font can be replaced by features in C++11. Along with the popularize of C++11-supported compiler, those libraries are switched to C++11's. Boost libraries are used only when necessary.