Harmen Stoppels f2c5092588 llvm: add missing system libs (#29270) ...

```
$ ./bin/llvm-config --link-static --system-libs
-lrt -ldl -lpthread -lm -lz -ltinfo -lxml2
```

`libz` and `libxml2` were missing.

2022-03-01 15:35:38 -07:00

..

spack

llvm: add missing system libs (#29270)

2022-03-01 15:35:38 -07:00