[MacPorts] #45760: Add a noboost variant to assimp

[MacPorts]

#45760: Add a noboost variant to assimp
-------------------------+--------------------------------
 Reporter:  drew@…       |      Owner:  macports-tickets@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.3.2
 Keywords:               |       Port:  assimp
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 This is a request to add a noboost variant to assimp.

 This can theoretically be accomplished in 3.0.1270 with

 {{{
 variant noboost description {Builds a non-thread safe version without
 boost dependency} {
         depends_lib-delete port:boost
         configure.args-append -DASSIMP_ENABLE_BOOST_WORKAROUND=YES
 }
 }}}

 but my built libraries have been broken.

 Boost 3.1.1 fixes a bug where the config flag is supplied if boost is not
 found, so

 {{{
 variant softboostdep description {Builds a non-thread safe version if boot
 is not found} {
         depends_lib-delete port:boost
 }
 }}}

 can theoretically be used to create a soft dependency.

 Thank you!

-- 
Ticket URL: <https://trac.macports.org/ticket/45760>
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