File baselibs.conf of Package libc++abi

libc++abi1
    provides "libc++abi-<targettype> = <version>"
    provides "libcxxabi-<targettype> = <version>"
    provides "libcxxabi1-<targettype> = <version>"
    provides "llvm-libc++abi-<targettype> = <version>"
    provides "llvm-libcxxabi-<targettype> = <version>"
    provides "llvm-libc++abi1-<targettype> = <version>"
    provides "llvm-libcxxabi1-<targettype> = <version>"