gregfelice commented on PR #2445:
URL: https://github.com/apache/age/pull/2445#issuecomment-4811275063
Thanks @jrgemignani — addressed the Copilot note in 71fe83e0.
The version guard now parses the field with `awk 'NR==1 {print $NF}'`
instead of the `grep -oE` regex, and errors explicitly when the version can't
be determined (instead of falling through to the confusing `Bison != 3.8.x`
message):
```sh
ver=$(bison --version | awk 'NR==1 {print $NF}')
if [ -z "$ver" ]; then
echo "::error::Could not determine Bison version from 'bison --version'."
exit 1
fi
```
Verified the parse against `bison (GNU Bison) 3.8.2` → `3.8.2` and empty
input → caught by the guard.
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