On 29/04/2013 19:26, Jerry wrote: > Thanks Matthew, I was wondering if I would have to rebuild the > database. I kind of thought that I would. One question though, why > "WITH_BDB_VER?=5" instead of the same setting sans the "?" question > mark? Plus, is there really a need for a space or tab between the > directive and the setting? I have seen several such flags using one > style or the other. Is it just a matter of style or does it actually > make any difference?
'?=' means 'assign if variable is not already initialised' -- so it
allows ports to override your choice of settings; for instance if you
wanted to install a port that only worked with an earlier version of BDB.
No, you don't need a space or tab in there at all. It's just a habit
since the standard in ports Makefiles is to put a tab (or two) after all
assignments so the data lines up nicely. Style only.
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil.
PGP: http://www.infracaninophile.co.uk/pgpkey
JID: matt...@infracaninophile.co.uk
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