depending on the setting of the LINGUAS environment variable.
To enable separate installation of individual languages,
there are individual targets with "install-<lang>" format.
Don't use it with standard make, because due to the huge number
of targets, it has a huge overhead and therefore provides lousy
performance!
Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit e8e67953ca)
