[MacPorts] #60787: TeXmacs @1.99.2_3 build fails under macOS 10.15.5

[MacPorts]

#60787: TeXmacs @1.99.2_3 build fails under macOS 10.15.5
--------------------------+------------------------------------------------
 Reporter:  murrayE       |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.6.2
 Keywords:  build         |       Port:  TeXmacs-devel @1.99.9-dev-20190603
  failure                 |
--------------------------+------------------------------------------------
 When attempting to upgrade from TeXmacs @1.99.2_2 to TeXmacs @1.99.2_3
 under macOS the build fails. From the log:

 {{{
 :info:build System/Misc/fast_alloc.hpp:55:14: error: 'operator new' is
 missing exception specification 'throw()'
 :info:build inline void* operator new   (register size_t s, void* loc) {
 return loc; }
 :info:build              ^
 :info:build
 throw()
 :info:build
 /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/new:221:70:
 note: previous declaration is here
 :info:build _LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY
 void* operator new[](std::size_t, void* __p) _NOEXCEPT {return __p;}
 :info:build
 }}}

 This seems to be the same error persisting that was reported in
 https://trac.macports.org/ticket/60521 for TeXmacs @1.99.2_2

-- 
Ticket URL: <https://trac.macports.org/ticket/60787>
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