FFI\Exception : Failed loading 'libvips.so.42' after upgrade to v2

[boris-glumpler]

Hello,

I've just upgraded a PHP 8.1 app from v1 to v2 and am now getting the following exception:

FFI\Exception : Failed loading 'libvips.so.42'
.../vendor/jcupitt/vips/src/Config.php:310
.../vendor/jcupitt/vips/src/Config.php:195
.../vendor/jcupitt/vips/src/Config.php:259
.../vendor/jcupitt/vips/src/Image.php:712

I've enabled FFI like so:

FFI support => enabled

Directive => Local Value => Master Value
ffi.enable => On => On
ffi.preload => no value => no value

I also removed the vips php extension, libvips is on version 8.12.2 and was installed via Homebrew.

I'd appreciate any pointers when you find some time. Thanks!

[jcupitt]

Hi @boris-glumpler,

Have you added the homebrew lib area to php's DYLD_LIBRARY_PATH? I think php-ffi will need this to be able to find libraries managed by homebrew.

[boris-glumpler]

Thanks for your answer. I tried a bunch of different values, but nothing seemed to work. Here's an example:

export DYLD_LIBRARY_PATH="/usr/local/opt:$DYLD_LIBRARY_PATH"

Do you know which path I should add here?

[jcupitt]

It need to include the directory with the libvips.dylib shared library in, so find that and check the dir is in there.

[boris-glumpler]

Found the directory /usr/local/Cellar/vips/8.12.2_1/lib, added it to DYLD_LIBRARY_PATH but am still getting the same exception.

[andrefelipe]

Have the same issue here Failed loading 'libvips.so.42'

On newer macOS the path is /opt/homebrew/lib but still doesn't work. Also tried setting the real folder too, in my case /opt/homebrew/Cellar/vips/8.12.2_1/lib.

Also using DYLD_FALLBACK_LIBRARY_PATH which I saw somewhere on internet but no good too:
export DYLD_FALLBACK_LIBRARY_PATH=/opt/homebrew/lib

Looking forward to have it working. Thank you so much for your time.

[andrefelipe]

Found it!!!

PHP_OS_FAMILY constant is "Darwin" in my case (not sure about "OSX")

So at "Config.php" file I changed the libraryName function to be:

private static function libraryName($name, $abi)
    {
        switch (PHP_OS_FAMILY) {
            case "Windows":
                return "$name-$abi.dll";

            case "OSX":
            case "Darwin":
                return "$name.$abi.dylib";

            default:
                // most *nix
                return "$name.so.$abi";
        }
    }

[andrefelipe]

Also found that DYLD_LIBRARY_PATH is not needed. I removed it and restarted my machine, everything is working.

By the way, thanks @jcupitt for this new solution to load the lib directly! I been having trouble with PECL for too long now.

[jcupitt]

@andrefelipe oh sweet! That's a good find! I'll patch it. Sorry, I should have spotted that the libname was wrong.

Yes, direct loading of the library should be MUCH better than that binary extension. I'm hoping it'll save a lot of people a lot of trouble.

[jcupitt]

OK, released as 2.0.1, thanks again for finding this stupidity.

[andrefelipe]

Thanks again @jcupitt have a good week!

Libvips is awesome, have relying on it for years, and happy I do.

[boris-glumpler]

Cheers @jcupitt!

[pdrhlik]

Hi @jcupitt,

I've just found out about libvips and wanted to give it a try because imagick is constantly giving me pain. I stumbled upon the same error as in this issue but I haven't been able to resolve it. I'm trying to run it on MacOS 12.3.1.

I've followed the installation instructions on the main page but I still keep getting Failed loading 'libvips.42.dylib' . I've tried setting DYLD_LIBRARY_PATH , installing vips pecl extension but I still keep getting this error. I found the library and it is indeed installed in the right place. The program died exactly where your FIXME comment is:

FIXME ... maybe display a helpful message on failure? This will
probably be the main point of failure.

Do you have any ideas or suggestions? Thanks a lot. I'd really love to try this library out.

Cheers,
Patrik

[jcupitt]

Hi @pdrhlik,

I guess this is with homebrew, and the lib is in /opt/homebrew/lib, is that right? Probably you just need to log out and in again so that the paths are all updated.