Bo Chen 559d1840d8 build: Use the crate version when the 'git describe' command failed ...

In our build-script (build.rs), we won't set the environment variable
'BUILD_VERSION' when the 'git describe' command failed (e.g. when the
current source tree does not contain git information). This patch added
a fall back path where the default value of 'BUILD_VERSION' is based on
the 'cloud-hypervisor' crate version.

Fixes: #1669

Signed-off-by: Bo Chen <chen.bo@intel.com>

2020-09-07 12:03:57 +02:00

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