[MacPorts] #30388: mono fails to build on 10.7

[MacPorts]

#30388: mono fails to build on 10.7
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 Reporter:  rb@…               |       Owner:  macports-tickets@…                   
     Type:  defect             |      Status:  new                                  
 Priority:  Normal             |   Milestone:                                       
Component:  ports              |     Version:  2.0.0                                
 Keywords:  lion               |        Port:  mono                                 
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Description changed by ryandesign@…:

Old description:

> Upgraded to MacPorts 2.0.0 today and tried to install mono.  The build
> fails with a #error:
>
> :info:build /usr/include/ucontext.h:43:2: error: #error The deprecated
> ucontext routines require _XOPEN_SOURCE to be defined
>
> Logs attached.

New description:

 Upgraded to MacPorts 2.0.0 today and tried to install mono.  The build
 fails with a #error:

 {{{
 :info:build /usr/include/ucontext.h:43:2: error: #error The deprecated
 ucontext routines require _XOPEN_SOURCE to be defined
 }}}

 Logs attached.

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Ticket URL: <https://trac.macports.org/ticket/30388#comment:3>
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