试着给Newifi3 D2编译LEDE固件，图省事在WSL 1的Ubuntu 18.04跑，结果踩了几个坑。
sleep: cannot read realtime clock: Invalid argument
参阅 https://github.com/microsoft/WSL/issues/4898#issuecomment-586512514 ，其中给出的原因是WSL 1的
An example of the WSL team continuing to service WSL 1 for now is a patch for issue 4989 384. Issue 4989 arises from a patch in glibc 2.31 49 that implements a nanosleep() library call in a more UNIX-like manner 26 based on CLOCK_REALTIME. Emulating UNIX system clocks on an NT kernel is tricky. WSL 1 implemented the most popular clock-based system calls, but not all of them, and did not build CLOCK_REALTIME support into nanosleep 6. But because this is such a fundamental change in glibc the WSL team is very graciously implementing support for CLOCK_REALTIME in nanosleep in WSL 1 and will be backporting it in updates to existing builds. This is a challenging task that will take some time. In contrast, other more obscure system clock calls, like the one raised in issue 4973 106, will likely not see implementation in WSL 1.
之后找到了 https://github.com/microsoft/WSL/issues/4898#issuecomment-624450947 ，这位提供了直接下载deb包安装
I solved it by downloading and manually installing the patched package:
Other files from the same repository can be found here: https://launchpad.net/~rafaeldtinoco/+archive/ubuntu/lp1871129/+build/19152555
It's still [@rafaeldtinoco](https://github.com/rafaeldtinoco) 's PPA after all but saves some mess adding APT repositories or so.
sudo dpkg -i libc6_2.31-0ubuntu8+lp1871129~1_amd64.deb
Thanks Rafael and Christian!
find: The relative path 'Files' is included in the PATH environment variable, which is insecure in combination with the -execdir action of find. Please remove that entry from $PATH