forked from boostorg/fusion
* missing make_pair() for r-value refs hello guys! the `make_pair()` for r-value refs is required for r-value, otherwise `non-copyable` but `movable` can be constructed. thanks! * fix for prev commit conditional support for r-values was fixed * the test case was added * fix for prev commit * Update Jamfile * one more fix for Jamfile * the forgotten r-value ctor was added * ah, they should be conditional