wget not working on Sonoma

[Upperholme]

Output of brew config

HOMEBREW_VERSION: 4.1.13
ORIGIN: https://github.com/Homebrew/brew
HEAD: a8519f78fb63f2f2266950bdd8141037da69f8bd
Last commit: 5 days ago
Core tap origin: https://github.com/Homebrew/homebrew-core
Core tap HEAD: e995843b010e1048b7b021117abe6a449a4c4614
Core tap last commit: 30 minutes ago
Core tap branch: master
Core tap JSON: 30 Sep 16:39 UTC
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 8
Homebrew Ruby: 2.6.10 => /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby
CPU: octa-core 64-bit icelake
Clang: 12.0.0 build 1200
Git: 2.24.3 => /Library/Developer/CommandLineTools/usr/bin/git
Curl: 8.1.2 => /usr/bin/curl
macOS: 14.0-x86_64
CLT: 12.0.0.26.2
Xcode: N/A

Output of brew doctor

Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: Your Command Line Tools are too outdated.
Update them from Software Update in System Settings.

If that doesn't show you any updates, run:
  sudo rm -rf /Library/Developer/CommandLineTools
  sudo xcode-select --install

Alternatively, manually download them from:
  https://developer.apple.com/download/all/.
You should download the Command Line Tools for Xcode 15.0.


Warning: A newer Command Line Tools release is available.
Update them from Software Update in System Settings.

If that doesn't show you any updates, run:
  sudo rm -rf /Library/Developer/CommandLineTools
  sudo xcode-select --install

Alternatively, manually download them from:
  https://developer.apple.com/download/all/.
You should download the Command Line Tools for Xcode 15.0.


Warning: You have unlinked kegs in your Cellar.
Leaving kegs unlinked can lead to build-trouble and cause formulae that depend on
those kegs to fail to run properly once built. Run `brew link` on these:
  tcl-tk

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Consider setting your PATH for example like so:
  echo 'export PATH="/usr/local/sbin:$PATH"' >> ~/.zshrc

Description of issue

When I run wget I get:

dyld[42297]: Library not loaded: /usr/local/opt/libunistring/lib/libunistring.2.dylib
Referenced from: <94F7987D-8C50-34E7-B456-452D70425F9F> /usr/local/Cellar/libidn2/2.3.4/lib/libidn2.0.dylib
Reason: tried: '/usr/local/opt/libunistring/lib/libunistring.2.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/usr/local/opt/libunistring/lib/libunistring.2.dylib' (no such file), '/usr/local/opt/libunistring/lib/libunistring.2.dylib' (no such file), '/usr/local/lib/libunistring.2.dylib' (no such file), '/usr/lib/libunistring.2.dylib' (no such file, not in dyld cache), '/usr/local/Cellar/libunistring/1.1/lib/libunistring.2.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/usr/local/Cellar/libunistring/1.1/lib/libunistring.2.dylib' (no such file), '/usr/local/Cellar/libunistring/1.1/lib/libunistring.2.dylib' (no such file), '/usr/local/lib/libunistring.2.dylib' (no such file), '/usr/lib/libunistring.2.dylib' (no such file, not in dyld cache)
zsh: abort wget

[SMillerDev]

Try brew install libunistring

[Upperholme]

Warning: libunistring 1.1 is already installed and up-to-date.

[Upperholme]

It looks like libidn.2.0.dylib is looking for libunistring.2.dylib, but my libunistring directory, at /usr/local/Cellar/libunistring/1.1/lib/ contains a file called libunistring.5.dylib

(thanks for responding to my query, btw)

[ZhongRuoyu]

Your libidn is likely outdated. Does brew upgrade libidn get you a newer version?

If that fixes your issue, I recommend running brew upgrade to make sure you don't get mismatched dependencies. libidn should have been automatically updated when you updated libidn either manually or automatically as a dependency of something else.

If that doesn't fix it, what's the output of brew linkage wget?

[Upperholme]

Thanks.
So I ran

brew upgrade libidn2

(libidn is not installed) and got :

==> Upgrading 1 outdated package:
libidn2 2.3.4 -> 2.3.4_1
==> Downloading https://ghcr.io/v2/homebrew/core/libidn2/manifests/2.3.4_1-1
Already downloaded: /Users/graham/Library/Caches/Homebrew/downloads/03ad193177f4e7d05ee2ed19a455028cb5fbf7ea1a812d88f18f5e9e8b4a4d43--libidn2-2.3.4_1-1.bottle_manifest.json
==> Fetching libidn2
==> Downloading https://ghcr.io/v2/homebrew/core/libidn2/blobs/sha256:69b39ffdb1367eabb34c77ce8bac7640d9fddc1722c95d2f2ce9ff9c4cf44db6
################################################################################################################################################################################## 100.0%
==> Upgrading libidn2
  2.3.4 -> 2.3.4_1 

and now wget is working. Thanks. So libidn2 is the culprit. It should have been updated as a dependency when I ran
brew install wget
right at the start of this, and got
Running `brew update --auto-update`...
which installed or upgraded a whole pile of libraries, but not libidn2.

[amadzarak]

Confirming this solution works for me.
brew install libidn2

[tonydeck0506]

brew install wget works for me

[cho-m]

This issue was fixed in Homebrew/brew#16152