[MacPorts] #38330: marble @4.10.1: error: use of undeclared identifier 'isnan'; did you mean 'std::isnan'?

[MacPorts]

#38330: marble @4.10.1: error: use of undeclared identifier 'isnan'; did you mean
'std::isnan'?
--------------------------+----------------------
 Reporter:  ryandesign@…  |      Owner:  sharky@…
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.1.3
 Keywords:                |       Port:  marble
--------------------------+----------------------
 Building marble @4.10.1 fails on OS X 10.8.2 with Xcode 4.6:

 {{{
 [ 93%]
 /opt/local/var/macports/build/_Users_rschmidt_macports_dports_kde_marble/marble/work/marble-4.10.1/src/plugins/positionprovider/gpsd/GpsdPositionProviderPlugin.cpp:79:42:
 error: use of undeclared identifier 'isnan'; did you m[ 93%] ean
 'std::isnan'?
     if ( data.status == STATUS_NO_FIX || isnan( data.fix.longitude ) ||
 isnan( data.fix.latitude ) )
                                          ^~~~~
                                          std::isnan
 /usr/include/c++/4.2.1/cmath:550:5: note: 'std::isnan' declared here
     isnan(_Tp __f) { return ::__gnu_cxx::__capture_isnan(__f); }
     ^
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/38330>
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