[MacPorts] #62426: libc++: using a newer libc++ to build software on older macos systems

[MacPorts]

#62426: libc++: using a newer libc++ to build software on older macos systems
--------------------------+----------------------
  Reporter:  kencu        |      Owner:  kencu
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  libcxx       |
--------------------------+----------------------

Comment (by kencu):

 Indeed there is a nice trick where you can reexport libraries, possibly
 adding functions in the process. I think we might indeed find nice ways to
 use this, possibly making a new libSystem.dylib that adds in most or all
 the symbols in libMacportsLegacySupport.dyib.

 Here's another couple of links I found interesting:

 <http://mirror.informatimago.com/next/developer.apple.com/documentation/mac/runtimehtml/RTArch-52.html>

 <https://stackoverflow.com/questions/20020715/re-export-shared-library-
 symbols-from-other-library-os-x-posix>

-- 
Ticket URL: <https://trac.macports.org/ticket/62426#comment:17>
MacPorts <https://www.macports.org/>
Ports system for macOS