Hi,

I've uploaded an alternative version to boost vault (boost.context-alternative_version.zip : http://tinyurl.com/6fpnkro).
The documentation is available at http://ok73.ok.funpic.de/alternative/boost/libs/context/doc/html/.

changes:

- fixed bug for x86_64/sysv/elf assembler file: missing assembler directive .type added
- as suggested by Artyom and Vicente:
  - assembler implementation and native implementation of context switching functions compiled and applied as template arg to context<>
    -> context<> == context< protected_stack, asm_impl > on UNIX, context< protected_stack, native_impl > on Windows
  - for Windows assembler implementation is disabled

Oliver