[MacPorts] #71943: Explain legacy-support issue with precompiled rustc

[MacPorts]

#71943: Explain legacy-support issue with precompiled rustc
-----------------------------+---------------------------------
  Reporter:  fhgwright       |      Owner:  MarcusCalhoun-Lopez
      Type:  request         |     Status:  reopened
  Priority:  Low             |  Milestone:
 Component:  ports           |    Version:
Resolution:                  |   Keywords:
      Port:  legacy-support  |
-----------------------------+---------------------------------

Comment (by kencu):

 Regarding the special magic macos linker symbols, see these refs for some
 background:

 https://stackoverflow.com/questions/10134189/what-does-the-ldaddos10-4
 -prefix-mean-when-i-use-nm-to-look-at-a-symbol-list

 https://stackoverflow.com/questions/17180964/linking-to-libraries-with-
 ldhideos10-x-symbols-in-osx

 https://github.com/apple-
 opensource/ld64/blob/e28c028b20af187a16a7161d89e91868a450cadc/src/ld/parsers/macho_dylib_file.cpp#L475

 https://github.com/llvm/llvm-project/issues/49144

 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39888#c6

-- 
Ticket URL: <https://trac.macports.org/ticket/71943#comment:3>
MacPorts <https://www.macports.org/>
Ports system for macOS