boostorg/build — pull request #34 by ENikS (2014-09-04 15:58:35+00:00)
Title: Visual studio support for <variant> property

Normally is either 'debug' or 'release' but VS only provides 'Debug' and 'Release'. I've added rule to support this capitalization as well so boost build could integrate better into MSVC scripting environment. This will provide 50% reduction in maintenance effort (no need to maintain two sets of project files).