install not going to /usr/lib but only /usr/local/lib

[wolftune]

Hydrogen version * : 1.2.3 Operating system + version : KDE Neon (Ubuntu based)

As discussed in https://github.com/hydrogen-music/hydrogen/issues/677 I built and installed, could not run, and making a symlink of libhydrogen-core-1.2.3.so linking /usr/local/lib/ at /usr/lib allowed it to work.

[theGreatWhiteShark]

Hey @wolftune ,

Seems like your Linux distribution is more user than developer focused. It added /usr/local/bin to $PATH but not /usr/local/lib to $LD_LIBRARY_PATH.

Installing your local build to /usr/local is more or less standard. /usr should be used by your package manager. This allows you to manually compile and install custom Hydrogen versions without messing with the system's one.

You could use a different installation prefix when building Hydrogen. But I would strongly discourage that. As discussed in #677, you could do one of these instead

• run sudo ldconfig and check whether this already fixes your issue
• open Hydrogen via the command line using LD_LIBRARY_PATH=/usr/local/lib hydrogen
• add export LD_LIBRARY_PATH=/usr/local/lib:${LD_LIBRARY_PATH} to your $HOME/.profile
• set the symlink as you mentioned

Do you think there is anything else to be done to keep this issue open?

[wolftune]

Well, the one thing maybe to do is to note this issue in the build instructions. Your reply here is amazingly thorough and clear. Only thing is, your list looks like a 4 step process, but I think you meant it as a weakly-sorted list of options to try (where any one of them alone could work), right?

I have it working now, and I'm just wanting to keep it working in the future and for others to know what to do.

Thanks!

[theGreatWhiteShark]

Well, the one thing maybe to do is to note this issue in the build instructions.

We already had a paragraph in INSTALL.md. But it was that accessible. Just updated it :)