Linux - Add -DNO_LCHMOD macro option to unzip.rb

[mklinkj]

Additional Info

• I am using Windows Subsystem for Linux

Output of brew config

N/A

Output of brew doctor

N/A

Description of issue

Hello.

I am using brew in Windows WSL2 Ubuntu environment and I also installed unzip using brew.

In such an environment, installing Java 17 Temurin using SDKMan always gives the error below.

...
lchmod (file attributes) error: Operation not supported
lchmod (file attributes) error: Operation not supported
lchmod (file attributes) error: Operation not supported
...

It was said that lchmod could not be used in the Ubuntu environment anyway, so I modified the brew file in the local environment.

• /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/unzip.rb

    def install
      # These macros also follow Ubuntu, and are required:
      # - to correctly handle large archives (> 4GB)
      # - extract & print archive contents with non-latin characters
      loc_macros = %w[
        -DLARGE_FILE_SUPPORT
        -DUNICODE_SUPPORT
        -DUNICODE_WCHAR
        -DUTF8_MAYBE_NATIVE
        -DNO_WORKING_ISPRINT
        -DNO_LCHMOD     
      ]

  • I added the -DNO_LCHMOD macro at the end.
  • https://github.com/Homebrew/homebrew-core/blob/master/Formula/unzip.rb

After adding the macro as above, I deleted the unzip and reinstalled it with the modified unzip.rb.

brew uninstall --ignore-dependencies unzip

brew install --build-from-source /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/unzip.rb

Installing Java 17 Temurin using SDKMan no longer caused any errors.

Is it okay to use it like this?

I thought it would be nice to conditionally include the -DNO_LCHMOD macro on Linux systems that don't support lchmod... I'm not sure if that's a good idea.

Thanks.

[cstamas]

Same problem exists even today (original sdkman issue: sdkman/sdkman-cli#790)