756950a148
libc++.a during the early build stages (bootstrap-tools, build-tools, cross-tools), since it is not possible to know in advance which C++ library is available on the host system. Instead, just use the bootstrap compiler's built-in default. This should eventually make it possible to build stable/9 on head, or on stable/10, which ship without libstdc++ by default. X-MFC-With: 255431 MFC after: 3 days