This allows to generate the `VERSION_HASH` constant with the Git commit hash
even when building from a source tarball which is not a Git repository (and
without dependency on Git itself).
(cherry picked from commit 9a71038e34)
This allows to generate the `VERSION_HASH` constant with the Git commit hash
even when building from a source tarball which is not a Git repository (and
without dependency on Git itself).
(cherry picked from commit 9a71038e34)