port:libcxx : use via DYLD_INSERT_LIBRARIES

[René J.V. Bertin]

Hi,

I've built and been testing the libraries from port:libcxx 3.7.1 for a while now, on OS X 10.9.5 . I didn't take the completely adventurous approach; instead, I copied them into a new directory (/opt/lib) and wrote a little wrapper script that inserts them before loading any application.

I would expect these libraries to be backwards compatible, so that C++ apps built on/for an older OS still run on a newer OS. Indeed, most applications run fine; either identically or without the dynamic_cast errors that I see with some KDE software on 10.9 .

However, a few applications don't run (properly) at all, or crash. QtWebEngine 5.7 crashes with memory allocation errors, and Opera fails to render pages. Both are based on Chromium. Does anyone know if this is to be expected?

R.