Libstdc++ is deprecated; move to libc++ with a minimum deployment target of iOS 7

==> Compiling xFiles/XDemoManager.m (armv7)…
==> Linking tweak xDemo (armv7)…
clang: warning: libstdc++ is deprecated; move to libc++ with a minimum deployment target of iOS 7
==> Compiling xFiles/XDem0Manager.m (arm64)…
==> Linking tweak xDemo (arm64)…
clang: warning: libstdc++ is deprecated; move to libc++ with a minimum deployment target of iOS 7
==> Merging tweak xDemo…
==> Signing xDemo…

Making stage for tweak xDemo…

在编译的时候出现了warning,这个应该怎样解决呢?
xcode Version 8.0 (8A218a)

已经在工程中加入了
libc++.1.tbd
libc++ .tbd
libc++abi.tbd
libstdc++.6.0.9 .tbd
libstdc++.6 .tbd
libstdc++.tbd

在makefile文件中如何填写新加的库呢!
我添加到FRAMEWORKS = libc++…报错
添加到PRIVATE_FRAMEWORK = libc++… 还报错

哪位前辈知道如何解决么!

有解决么?