[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
Resolution:           |   Keywords:
      Port:  TeXmacs  |
----------------------+--------------------
Changes (by mf2k):

 * keywords:  build failure =>
 * port:  TeXmacs-devel @1.99.9-dev-20190603 => TeXmacs


Old description:

> 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

New description:

 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
 ticket:60521 for TeXmacs @1.99.2_2

--

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Ticket URL: <https://trac.macports.org/ticket/60787#comment:1>
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