forked from boostorg/predef
* shorter category names * CXX => COMP to be generic compiler category * add predef for string name of item * renamed all version make/extraction macros for clarity * C++ standard predef to use 1970.0.0 epoc date offset * subcategories for OS_BSD * start rewrite to support older preprocessors git-svn-id: http://svn.boost.org/svn/boost/sandbox/predef@79517 b8fc166d-592f-0410-95f2-cb63ce0dd405