The Cygwin build is broken again. It is broken in the current master,
in 10.0.0, and 10.0.1. See
https://github.com/apache/incubator-nuttx/issues/3799 for more details.
This is the commit that broke the build:
d5b6ec450fde069a4e64569b0eb7e4fcb3b96e83 is the first bad commit
commit d5b6ec450fde069a4e64569b0eb7e4fcb3b96e83
Author: Matias N <mat...@protobits.dev>
Date: Wed Nov 18 13:44:58 2020 -0300
Parallelize depend file generation
arch/arm/src/Makefile | 7 +++++--
arch/avr/src/Makefile | 7 +++++--
arch/hc/src/Makefile | 7 +++++--
arch/mips/src/Makefile | 7 +++++--
arch/misoc/src/Makefile | 7 +++++--
arch/or1k/src/Makefile | 7 +++++--
arch/renesas/src/Makefile | 6 +++++-
arch/risc-v/src/Makefile | 7 +++++--
arch/sim/src/Makefile | 7 +++++--
arch/x86/src/Makefile | 7 +++++--
arch/x86_64/src/Makefile | 7 +++++--
arch/xtensa/src/Makefile | 7 +++++--
audio/Makefile | 6 +++++-
binfmt/Makefile | 6 +++++-
boards/Makefile | 11 +++++------
crypto/Makefile | 6 +++++-
drivers/Makefile | 6 +++++-
fs/Makefile | 6 +++++-
graphics/Makefile | 6 +++++-
libs/libc/Makefile | 12 ++++++++++--
libs/libc/bin/Makefile | 2 +-
libs/libc/zoneinfo/Makefile | 6 +++++-
libs/libdsp/Makefile | 6 +++++-
libs/libnx/Makefile | 12 ++++++++++--
libs/libnx/kbin/Makefile | 2 +-
libs/libxx/Makefile | 6 +++++-
mm/Makefile | 12 ++++++++++--
net/Makefile | 6 +++++-
openamp/Makefile | 6 +++++-
pass1/Makefile | 6 +++++-
sched/Makefile | 6 +++++-
syscall/Makefile | 7 +++++--
tools/Config.mk | 17 +++++++++++++++++
video/Makefile | 6 +++++-
wireless/Makefile | 6 +++++-
