Doesn't build on Windows #173

Using library: codal-microbit-nrf5sdk
-- Configuring done (1.0s)
-- Generating done (1.0s)
-- Build files have been written to: /c/workspace/micropython-microbit-v2/src/build
git -C ../lib/codal checkout CMakeLists.txt
Updated 1 path from the index
git -C ../lib/codal checkout CMakeLists.txt
Updated 0 paths from the index
make -C codal_port
make[1]: Entering directory '/c/workspace/micropython-microbit-v2/src/codal_port'
Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity.
(cd ../../lib/micropython && py py/makeversionhdr.py /c/workspace/micropython-microbit-v2/src/codal_port/build/genhdr/mpversion.h)
py make_microbit_version_hdr.py build/genhdr/microbitversion.h
GEN build/genhdr/qstr.i.last
Traceback (most recent call last):
  File "../../lib/micropython/py/makeqstrdefs.py", line 213, in <module>
    preprocess()
  File "../../lib/micropython/py/makeqstrdefs.py", line 83, in preprocess
    for output in p.imap(pp(flags), chunks):
  File "C:\Users\IEUser\AppData\Local\Programs\Python\Python38\lib\multiprocessing\pool.py", line 86
8, in next
    raise value
  File "C:\Users\IEUser\AppData\Local\Programs\Python\Python38\lib\multiprocessing\pool.py", line 12
5, in worker
    result = (True, func(*args, **kwds))
  File "../../lib/micropython/py/makeqstrdefs.py", line 65, in run
    return subprocess.check_output(args.pp + flags + files)
  File "C:\Users\IEUser\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 415, in chec
k_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "C:\Users\IEUser\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 493, in run
    with Popen(*popenargs, **kwargs) as process:
  File "C:\Users\IEUser\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 858, in __in
it__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Users\IEUser\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 1311, in _ex
ecute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified
make[1]: *** [../../lib/micropython/py/mkrules.mk:122: build/genhdr/qstr.i.last] Error 1
make[1]: *** Deleting file 'build/genhdr/qstr.i.last'
make[1]: Leaving directory '/c/workspace/micropython-microbit-v2/src/codal_port'
make: *** [Makefile:44: libmicropython] Error 2

Using library: codal-microbit-nrf5sdk
-- Configuring done
-- Generating done
-- Build files have been written to: C:/workspace/micropython-microbit-v2/src/build
git -C ../lib/codal checkout CMakeLists.txt
Updated 1 path from the index
git -C ../lib/codal checkout CMakeLists.txt
Updated 0 paths from the index
make -C codal_port
make[1]: Entering directory '/cygdrive/c/workspace/micropython-microbit-v2/src/codal_port'
py ../../lib/micropython/py/makeversionhdr.py build/genhdr/mpversion.h
GEN build/genhdr/mpversion.h
(cd ../../lib/micropython && py py/makeversionhdr.py /cygdrive/c/workspace/micropython-microbit-v2/src/codal_port/build/genhdr/mpversion.h)
GEN /cygdrive/c/workspace/micropython-microbit-v2/src/codal_port/build/genhdr/mpversion.h
Traceback (most recent call last):
  File "py/makeversionhdr.py", line 148, in <module>
    main()
  File "py/makeversionhdr.py", line 144, in main
    make_version_header(args.repo_path, args.dest[0])
  File "py/makeversionhdr.py", line 127, in make_version_header
    with open(filename, "w") as f:
FileNotFoundError: [Errno 2] No such file or directory: '/cygdrive/c/workspace/micropython-microbit-v2/src/codal_port/build/genhdr/mpversion.h'
make[1]: *** [Makefile:136: build/genhdr/microbitversion.h] Error 1
make[1]: Leaving directory '/cygdrive/c/workspace/micropython-microbit-v2/src/codal_port'
make: *** [Makefile:44: libmicropython] Error 2

Using library: codal-microbit-nrf5sdk
-- Configuring done (38.1s)
-- Generating done (0.1s)
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_BUILD_TYPE


-- Build files have been written to: D:/a/micropython-microbit-v2/micropython-microbit-v2/src/build
git -C ../lib/codal checkout CMakeLists.txt
Updated 1 path from the index
git -C ../lib/codal checkout CMakeLists.txt
Updated 0 paths from the index
C:/mingw64/bin/make -C codal_port
Makefile:140: *** target pattern contains no '%'.  Stop.
make[1]: Entering directory 'D:/a/micropython-microbit-v2/micropython-microbit-v2/src/codal_port'
make[1]: Leaving directory 'D:/a/micropython-microbit-v2/micropython-microbit-v2/src/codal_port'
make: *** [Makefile:44: libmicropython] Error 2