How to address ‘..appy libs required to decompress .

[gyorokpeter-kx]

Have you tried installing libsnappy?

File compression | Database | kdb+ and q documentation – Kdb+ and q documentation (kx.com)

[voiddump]

Uhm…Sorry I’m new to Github. I followed the links but I’m not quite sure what to do next. Do I choose one of these to download?

[gyorokpeter-kx]

There is an infobox below the table:

To install Snappy or Lz4 on macOS, use a package manager such as Homebrew or MacPorts:

# install with MacPorts sudo port install snappy +universal export LD_LIBRARY_PATH=/opt/local/lib

[voiddump]

Thanks for this! I’ve successfully installed MacPorts and snappy, however it still shows this error message. I suppose the path of Snappy might be wrong or unaccessible by KDB+. Is it so? How can I change the path?

 

[voiddump]

Thank you so much! I’ve addressed the problem.

After continuous chats with GPT, I finally put Snappy in the right place. If anyone also encounters this problem, this is the solution given by GPT:

 

1. **Verify Library Path:**
Ensure that the directory containing the `libsnappy.dylib` library is in the system’s library path. You can add the directory to the library path by setting the `DYLD_LIBRARY_PATH` environment variable in your shell profile or script.export?DYLD_LIBRARY_PATH=/path/to/snappy/lib:$DYLD_LIBRARY_PATH

 

2.**Check Your Snappy Place**:

Type in the following code in the terminal:

”’

port contents snappy

”’

Mine returns:

Port snappy contains:

  /opt/local/include/snappy-c.h

  /opt/local/include/snappy-sinksource.h

  /opt/local/include/snappy-stubs-public.h

  /opt/local/include/snappy.h

  /opt/local/lib/cmake/Snappy/SnappyConfig.cmake

  /opt/local/lib/cmake/Snappy/SnappyConfigVersion.cmake

  /opt/local/lib/cmake/Snappy/SnappyTargets-macports.cmake

  /opt/local/lib/cmake/Snappy/SnappyTargets.cmake

  /opt/local/lib/libsnappy.1.1.10.dylib

  /opt/local/lib/libsnappy.1.dylib

  /opt/local/lib/libsnappy.dylib

So the path is /opt/local/lib/

3. **Restart KDB+:**
Restart your KDB+ session to apply the changes. Type in following codes:

”’
cd /your/path/to/the/installation/of/kdb
spctl –add q/m64/q
xattr -d com.apple.quarantine q/m64/q
DYLD_LIBRARY_PATH=/opt/local/lib ./q/m64/q

”’

You can change the /opt/local/lib in the ‘DYLD_LIBRARY_PATH=’ to your path of the Snappy.

This should solve the problem.