brew upgrade issues on macOS

[Simon Murphy]

Hi, I've recently migrated to BigSur? (the latest macOS), which meant survex no longer loaded.

I've just done a brew upgrade survex to get the latest version (I'm now at 1.2.43), hoping this would resolve the problems.

When I run

aven

I get (for user sjm):

dyld: Library not loaded: /Users/sjm/Developer/opt/proj/lib/libproj.19.dylib

Referenced from: /Users/sjm/Developer/bin/aven Reason: image not found

[1] 67839 abort aven

I did a bit of googling and tried to

brew unlink survex

then

brew link survex

again, but no luck.

When that didn't change anything, I tried

brew reinstall survex

but still no luck.

I tried

ln -s /Users/sjm/Developer/Cellar/proj/7.2.1.reinstall/lib/libproj.19.dylib /Users/sjm/Developer/opt/proj/lib/libproj.19.dylib

but still no success.

Thanks in advance for your help. Simon.