[MacPorts] #33259: cmake portgroup: out of source build option, possibly by default

[MacPorts]

#33259: cmake portgroup: out of source build option, possibly by default
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  Reporter:  ryandesign@…  |      Owner:  macports-tickets@…
      Type:  enhancement   |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:                |
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Comment (by larryv@…):

 Replying to [comment:45 michaelld@…]:
 > I don't like the multiple use of "mkdir" even when it is unnecessary
 > (not out of tree build), but it works (I think 'port' internally
 > either checks to see if the directory already exists & if so then does
 > nothing, or just ignores what the system call returns; I didn't test
 > beyond this).

 Tcl’s `file mkdir` command does nothing if the directory already exists. I
 think it’s nice to not have to check first :)

 http://www.tcl.tk/man/tcl8.5/TclCmd/file.htm#M22

 (Incidentally, I don’t see why base doesn’t create `configure.dir`
 automatically, but that’s a question for another time.)

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Ticket URL: <https://trac.macports.org/ticket/33259#comment:46>
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