[MacPorts] #38406: boost: disable no_single by default

[MacPorts]

#38406: boost: disable no_single by default
-----------------------+--------------------------------
 Reporter:  aronnax@…  |      Owner:  macports-tickets@…
     Type:  request    |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.1.3
 Keywords:             |       Port:  boost
-----------------------+--------------------------------
 I am preparing a new Portfile for htcondor
 (http://research.cs.wisc.edu/htcondor/) that will depend on the single-
 threaded Boost libraries, which requires boost to be built with the
 {{{no_single}}} variant disabled. Since Boost takes so very long to build,
 could the {{{no_single}}} variant be disabled by default, so that the
 buildbots build the single-threaded libraries as well as the multi-
 threaded ones?

-- 
Ticket URL: <https://trac.macports.org/ticket/38406>
MacPorts <http://www.macports.org/>
Ports system for OS X