[MacPorts] #59635: gimp2 @2.10.14: A compiler with support for C++14 language features is required

[MacPorts]

#59635: gimp2 @2.10.14: A compiler with support for C++14 language features is
required
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  dbevans
     Type:  defect      |     Status:  assigned
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.6.2
 Keywords:              |       Port:  gimp2
------------------------+----------------------
 Even though gimp2 specifies `compiler.cxx_standard 2014`,
 [https://build.macports.org/builders/ports-10.9_x86_64-builder/builds/105177/steps
 /install-port/logs/stdio gimp2 doesn't build] on 10.9 at least:

 {{{
 checking whether /usr/bin/clang++ supports C++14 features by default... no
 checking whether /usr/bin/clang++ supports C++14 features with
 -std=gnu++14... no
 checking whether /usr/bin/clang++ supports C++14 features with
 -std=gnu++1y... no
 checking whether /usr/bin/clang++ supports C++14 features with
 -std=c++14... no
 checking whether /usr/bin/clang++ supports C++14 features with
 +std=c++14... no
 checking whether /usr/bin/clang++ supports C++14 features with -h
 std=c++14... no
 checking whether /usr/bin/clang++ supports C++14 features with
 -std=c++1y... no
 checking whether /usr/bin/clang++ supports C++14 features with
 +std=c++1y... no
 checking whether /usr/bin/clang++ supports C++14 features with -h
 std=c++1y... no
 configure: error: *** A compiler with support for C++14 language features
 is required.
 }}}

 It was discussed recently that MacPorts base might have the wrong idea
 about which compiler versions are compatible with which C++ standards.

-- 
Ticket URL: <https://trac.macports.org/ticket/59635>
MacPorts <https://www.macports.org/>
Ports system for macOS