[ANNOUNCE] libgpiod v1.6.4 released

[Bartosz Golaszewski <brgl@xxxxxxxx>]

This is a bug-fix release for the v1.6.x branch and contains just a
couple fixes mostly related to configuring, building and testing.

The release tarball[1] and git repo[2] are available on kernel.org

Bart

[1] https://mirrors.edge.kernel.org/pub/software/libs/libgpiod/
[2] git://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git