trying to add Clang 3.7 toolchain
trying to add Clang 3.7 toolchain

whackashoe/json,hunter-packages/json,Newbrick/json,nlohmann/json,Newbrick/json,kaidokert/json,Newbrick/json,robertmrk/json,kaidokert/json,stanmihai4/json,theodelrieu/json,hunter-packages/json,nlohmann/json,whackashoe/json,stanmihai4/json,kaidokert/json,stanmihai4/json,nlohmann/json,hunter-packages/json,theodelrieu/json