gh-742 (broken build with a newer version of cmake): a post-merge fix.
gh-742 (broken build with a newer version of cmake): a post-merge fix.

Support old versions of cmake.

vasilenkomike/tarantool,nvoron23/tarantool,vasilenkomike/tarantool,Sannis/tarantool,condor-the-bird/tarantool,nvoron23/tarantool,dkorolev/tarantool,mejedi/tarantool,guard163/tarantool,ocelot-inc/tarantool,ocelot-inc/tarantool,nvoron23/tarantool,rtsisyk/tarantool,guard163/tarantool,ocelot-inc/tarantool,KlonD90/tarantool,Sannis/tarantool,dkorolev/tarantool,mejedi/tarantool,condor-the-bird/tarantool,condor-the-bird/tarantool,KlonD90/tarantool,Sannis/tarantool,KlonD90/tarantool,nvoron23/tarantool,dkorolev/tarantool,ocelot-inc/tarantool,dkorolev/tarantool,vasilenkomike/tarantool,vasilenkomike/tarantool,condor-the-bird/tarantool,guard163/tarantool,vasilenkomike/tarantool,Sannis/tarantool,mejedi/tarantool,dkorolev/tarantool,nvoron23/tarantool,guard163/tarantool,rtsisyk/tarantool,rtsisyk/tarantool,KlonD90/tarantool,Sannis/tarantool,nvoron23/tarantool,KlonD90/tarantool,rtsisyk/tarantool,guard163/tarantool,mejedi/tarantool,condor-the-bird/tarantool