[MacPorts] #70286: quickjs needs to link to libatomic and legacysupport, but build system is non-trivially broken and linking fails

[MacPorts]

#70286: quickjs needs to link to libatomic and legacysupport, but build system is
non-trivially broken and linking fails
--------------------------+---------------------
 Reporter:  barracuda156  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.9.3
 Keywords:                |       Port:  quickjs
--------------------------+---------------------
 I spent quite some time on this, but everything fails.
 Build keeps failing on:
 {{{
 Undefined symbols:
   "___atomic_compare_exchange_8", referenced from:
       _js_atomics_op in libquickjs.a(quickjs.o)
   "___atomic_fetch_xor_8", referenced from:
       _js_atomics_op in libquickjs.a(quickjs.o)
   "___atomic_fetch_add_8", referenced from:
       _js_atomics_op in libquickjs.a(quickjs.o)
   "___atomic_load_8", referenced from:
       _js_atomics_op in libquickjs.a(quickjs.o)
   "___atomic_store_8", referenced from:
       _js_atomics_store in libquickjs.a(quickjs.o)
   "___atomic_fetch_sub_8", referenced from:
       _js_atomics_op in libquickjs.a(quickjs.o)
   "_clock_gettime", referenced from:
       _js_atomics_wait in libquickjs.a(quickjs.o)
       _js_os_setTimeout in libquickjs.a(quickjs-libc.o)
       _js_os_poll in libquickjs.a(quickjs-libc.o)
   "___atomic_fetch_or_8", referenced from:
       _js_atomics_op in libquickjs.a(quickjs.o)
   "___atomic_fetch_and_8", referenced from:
       _js_atomics_op in libquickjs.a(quickjs.o)
   "___atomic_exchange_8", referenced from:
       _js_atomics_op in libquickjs.a(quickjs.o)
 }}}

 Issue with upstream: https://github.com/bellard/quickjs/issues/321

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Ticket URL: <https://trac.macports.org/ticket/70286>
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Ports system for macOS