can't run some darwinlegacy binaries on MacOS Lion

[Werner LEMBERG]

I've followed

  https://tug.org/texlive/upgrade.html

to upgrade from TeXLive 2018 to 2019.  Unfortunately, some of the new
binaries fail to run on my MacOS 10.7.5 box:

  > pdftex --version
  dyld: Symbol not found: __ZSt9terminatev
    Referenced from: /usr/local/texlive/2019/bin/x86_64-darwinlegacy/pdftex
    Expected in: /usr/lib/libc++abi.dylib
   in /usr/local/texlive/2019/bin/x86_64-darwinlegacy/pdftex
  Trace/BPT trap: 5

All affected binaries (at least `pdftex', `xetex', and `etex') show
the same error.

Is this a known problem?


    Werner