Log Message:
Pullup ticket #6565 - requested by gutteridge
lang/wasi-libcxx: build fix

Revisions pulled up:
- lang/wasi-libcxx/Makefile                                     1.8

---
   Module Name:    pkgsrc
   Committed By:   gutteridge
   Date:           Mon Jan 10 02:10:04 UTC 2022

   Modified Files:
           pkgsrc/lang/wasi-libcxx: Makefile

   Log Message:
   wasi-libcxx: carry over wasi-compiler-rt fix for Firefox builds

   Also apply tnn@'s workaround in wasi-compiler-rt here, as related
   failures have been observed due to this package. See PR pkg/56590.
   (Tested with multiple iterations on NetBSD 9.2_STABLE.)