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Revision 6376dcc0


Added by Iustin Pop over 11 years ago

Improve make regen-vcs-version

"make regen-vcs-version" is run at every ./devel/upload time, in order
to have reasonably up-to-date information in the uploaded
scripts/binaries. However, this means it currently triggers
recompilation of (at least) Ganeti/Version.hs, and sometimes more than

Since we only care about the contents of the file and not the
timestamp, let's change the make rule so that it only updates the file
if there are actually changes in the content, as checked by
"cmp". This results in a much faster ./devel/upload, especially for
small changes in the (non-Haskell) code, or when the code has already
been compiled.

Signed-off-by: Iustin Pop <>
Reviewed-by: Michael Hanselmann <>


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