support compiling outside of git checkout #35
Merged
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When building nmrpflash for Debian, there is no 'git' command available,
and there is no '.git' directory either. This makes the build emit
warnings from the $(shell) calls in VERSION variable in the Makefile
and breaks the '-V' option.
The change in this patch accounts for missing 'git' command and resorts
to using a STANDALONE_VERSION environment variable which in turn is
provided by the package build mechanics.
This change has no effect when the git command is available and the
'.git' directory is present.