Previously, code defaulted to using libstdc++ (which was GNU libstdc++
on the host, or Bionic's "libstdc++" on the target). Now we default to
libc++. The exception for this is when using mingw, because we cannot
build libc++ for mingw.
Change-Id: I68726fa26cdcb6263f17c838d3e859debd57fae1
It is libstdc++.so, after all, and the naming makes sense for the host
this way (since it also uses libstdc++).
Change-Id: If37ffa015f7967a928ea47a290363d7696c4ce35
Because LOCAL_CXX_STL modifies a module's required shared libaries,
we need this for also prebuilt shared libraries and executables.
Change-Id: I418c26143999a613c40aadf990f131b123e0ac3d