Currently, ClocksPerSec is determined by exec'ing getconf in func init,
i.e. on startup of every program importing the package. getconf might
not be present on some systems or is not executable by the current user.
To avoid this hard to control dependency, use the
github.com/tklauser/go-sysconf package which implements sysconf(3)
entirely in Go without cgo. The package is supported on all platforms
currently supported by the cpu and v3/cpu package of gopsutil.
There was a breaking change in upstream golang.org/x/sys/unix which
changed the type of some Statvfs members, see #853. As it looks like
this change won't be reverted, adjust gopsutil to work with it and allow
to build against the latest version of x/sys/unix.
All functions used from github.com/shirou/w32 are also available from
golang.org/x/sys/windows which is already used in other places. Convert
the remaining usages to use the functions from x/sys/windows.
Tobias Klauser