OpenBSD: Could not open library 'libglib-2.0.so.0': File not found

[ghost]

Getting LoadError (Could not open library 'glib-2.0.so.0': File not found. Could not open library 'libglib-2.0.so.0': File not found) here on OpenBSD. How to tell ruby-vips to look for /usr/local/lib/libglib-2.0.so.4201.2 instead?

Thanks.

[jcupitt]

Hello @1234dev,

I think Ruby ffi is expecting there to be a symlink meaning "glib-2.0 API version 0", ie. a link from libglib-2.0.so.0 to whatever binary you have. You'll need a similar link for libvips.so.42 as well.

I don't know much about the OpenBSD linker -- how does it handle ABI back compatibility? You might need to ask the Ruby ffi maintainer (they are very helpful) to make some adjustments to their library finder.

[ghost]

Thanks @jcupitt!

[jcupitt]

So perhaps the problem is with the openbsd glib package. Why is there no link for libglib-2.0.so.0?

[basicfeatures]

Looks like a port was created not too long after this issue:

https://openports.se/graphics/libvips

[basicfeatures]

Install libvips and its dependencies:

pkg_add libvips
pkg_add glib
pkg_add gobject-introspection

Symlink the OpenBSD binaries with what ruby-vips expects as of 2022.06.30:

ln -s /usr/local/lib/libvips.so.0.0 /usr/local/lib/libvips.so.42
ln -s /usr/local/lib/libglib-2.0.so.4201.6 /usr/local/lib/libglib-2.0.so
ln -s /usr/local/lib/libgobject-2.0.so.4200.13 /usr/local/lib/libgobject-2.0.so.0

Cc: ffi/ffi#738

[basicfeatures]

For more please see https://github.com/basicfeatures/openbsd-rails 👍

[jcupitt]

Oh, great! Thanks for the update @basicfeatures.

You probably don't need gobject-introspection, fwiw. Maybe just gobject?