macos 11.3 upgrade causes mytop to fail with ListUtil.c: loadable library and perl binaries are mismatched

[kylezeeuwen]

Hello,

I'm also dpocumenting and looking for help over here : https://stackoverflow.com/questions/67308565/mytop-on-big-sur-stopped-working-after-os-update

Timeline:

• Apr 27 : all is well running macos 11.2.X, mytop runs like a pro, showing my SQL things
• Apr 28: install macos 11.3
• mytop now fails with:

> mytop
ListUtil.c: loadable library and perl binaries are mismatched (got handshake key 0xc500080, needed 0xc400080)

> which mytop
/usr/local/bin/mytop

> ls -la /usr/local/bin/mytop
lrwxr-xr-x  1 username  admin  33  9 Dec 10:24 /usr/local/bin/mytop -> ../Cellar/mytop/1.9.1_8/bin/mytop

Things I've done so far to try to fix:

* brew update
* xcode-select --install (wait 5 hours)
* brew upgrade (upgrades 19 things)
* brew remove mytop; brew install mytop

[carlocab]

This was caused by Big Sur 11.3 switching the default perl to 5.30. It used to be 5.28, and that's the version that mytop expects to find at /usr/bin/perl. See Homebrew/brew#10127.

In the meantime, try brew reinstall -s mytop to rebuild mytop against the new version of system perl.

[kylezeeuwen]

this worked 🙏