[MacPorts] #45137: pure-gen @0.16: update to 0.18

[MacPorts]

#45137: pure-gen @0.16: update to 0.18
-----------------------+--------------------------------
 Reporter:  aggraef@…  |      Owner:  macports-tickets@…
     Type:  update     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.3.1
 Keywords:             |       Port:  pure-gen
-----------------------+--------------------------------
 I have attached the suggested changes to the Portfile. Please note that
 the patch patch-pure-gen.pure.diff shouldn't be needed anymore, since the
 Makefile now properly detects the installed gcc on OS X and edits pure-
 gen.pure accordingly.

 The added `PUREC_FLAGS=-mcpu=generic` in the build flags makes sure that
 the created pure-gen binary uses a generic instruction set which should
 work on any x86/x86_64 machine. I don't know whether this is actually
 needed on the Mac, but I do it this way on all the other Windows and Linux
 systems I build binary packages for, and in any case it shouldn't do any
 harm.

 However, note that the `-mcpu=generic` needs Pure 0.62, so it shouldn't be
 used for platforms where this isn't available. If it causes too much
 trouble, simply leave out that option in the build flags.

 I've tested this on my MB Pro running 10.9.5. The Portfile works fine
 there and the installed pure-gen can regenerate the entire pure-gl wrapper
 without a hitch. So it should be all right.

-- 
Ticket URL: <https://trac.macports.org/ticket/45137>
MacPorts <http://www.macports.org/>
Ports system for OS X