=== configuring in projects/sample (/Users/wilson/code/cpp/vm/external_libs/llvm/projects/sample)
configure: running /bin/sh ./configure --prefix=/usr/local  --cache-file=/dev/null --srcdir=.
configure: creating ./config.status
config.status: creating Makefile.common
config.status: executing setup commands
config.status: executing Makefile commands
/Users/wilson/code/cpp/vm/external_libs/llvm/autoconf/install-sh: ./Makefile does not exist.
config.status: executing lib/Makefile commands
/Users/wilson/code/cpp/vm/external_libs/llvm/autoconf/install-sh: ./lib/Makefile does not exist.
config.status: executing lib/sample/Makefile commands
/Users/wilson/code/cpp/vm/external_libs/llvm/autoconf/install-sh: ./lib/sample/Makefile does not exist.
config.status: executing tools/Makefile commands
/Users/wilson/code/cpp/vm/external_libs/llvm/autoconf/install-sh: ./tools/Makefile does not exist.
config.status: executing tools/sample/Makefile commands
/Users/wilson/code/cpp/vm/external_libs/llvm/autoconf/install-sh: ./tools/sample/Makefile does not exist.
make: *** No targets specified and no makefile found.  Stop.
rake aborted!
Command failed with status (2): [cd external_libs/llvm; ./configure && make...]
/Users/wilson/code/cpp/vm/rakefile:107