about PERL_DEPENDS and PERL_TEST_DEPENDS

[Yen-Ming Lee]

[See http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/121313]

2008/3/5, Mark Linimon <linimon at lonesome.com>:
> While this is interesting functionality, this would result in a terrible
>  slowdown in e.g. bulding the ports INDEX -- this would nearly double the
>  line size of bsd.*.mk, not to mention the time involved to do the string-
>  bashing.
>
>  Surely there is a less expensive way of achieving the same result?
>
>  mcl

Yes, but "bsd.perl.core.mk" will only be loaded if PERL_DEPENDS is
defined, also it will ony load the values based on the value of
PERL_LEVEL. Surely it will slow down the build time, but it only
affect p5-*, and in my experience it's not that bad. Of course
building one port and building whole ports tree are different cases...

The numbers of _perl_core_XXXX defined based on PERL_LEVEL are:
  50 500000
  56 500100
  77 500200
  98 500370
 131 500400
 144 500450
 173 500500
 174 500530
 177 500540
 215 500600
 221 500601
 245 500602
 316 500703
 334 500800
 354 500801
 353 500802
 355 500803
 361 500804
 362 500805
 362 500806
 357 500807
 365 500808
 357 500900
 364 500901
 362 500902
 447 500903
 480 500904
 532 500905
 537 501000

Note: I incorrectly put "500100" for 5.10 (which should be "501000"),
the latest version of perl and the next version of perl on FreeBSD, in
my "bsd.perl.core.mk", I'll provide the correct data later if needed.

It's my implementation to "maintains a little database for dual-life
modules", maybe tobez@ and lth@ or other developers on perl@ will have
better solutions to do so.

Thanks,
-- 
Yen-Ming Lee <leeym at leeym.com>