[PATCH/RFC 0/3] port upload-archive to windows

Upload-archive, while compiled and installed on Windows, never worked due to it's dependence on fork. This is a patch-series to remedy that.

While doing this, I found a bug in gnulib's poll-emulation where it could return 0 even when timeout was -1. This is neither something POSIX allows, nor something our code is expecting.

So I've submitted an upstream patch for gnulib and upgraded our copy.

Erik Faye-Lund (3):
  compat/win32/sys/poll.c: upgrade from upstream
  mingw: fix compilation of poll-emulation
  upload-archive: use start_command instead of fork

 builtin/upload-archive.c |   62 ++++++++++++----------------------------------
 compat/mingw.h           |    2 -
 compat/win32/sys/poll.c  |   17 +++++++++---
 3 files changed, 28 insertions(+), 53 deletions(-)