Build doesn't work with newer libs

[Benjamin Murauer]

The build currently fails on my system (arch linux) due to the hard-coded library versions for -lIex, -IlmThread, and -lOpenEXR. This could be prevented by removing the -3_1 suffix in the defaults.pri. The build seems to work fine with version 3.2 of each of those three libs, which is installed on my system.

I don’t have a clue if this change is sensible. My intuition wonders why these library versions are hard-coded in the configuration, especially since the other libs seem to be okay without specific versions. But I am also fine with passing this task on to the package maintainer of the arch linux package for fractorium, if those versions are the only ones that are officially supported.

[Matt Feemster]

Hmm, I am unsure if it’ll still build without those. I’ve had quite a bit of difficulty maintaining the build with those libraries over the years as they’ve changed versions.

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If you remove the suffixes, does it build for you?

[Benjamin Murauer]

Yes, the latest versions that I have installed are 3.2, and the build does not work with the suffixes. Once I remove them, the build runs fine. However, I can’t speak for all linux distributions of course, and I have absolutely no idea which versions of the respective libraries are shipped with which distros. There is a fractorium package for Arch linux which could include this change, but the maintainer seems to have abandoned the ship. I have mentioned this fix there, so anyone who would want to install fractorium on Arch in theory has the instructions.

This is not a pressing issue, so feel free to close this ticket, I just wanted to let you know and do my part by reporting it ;)

[Matt Feemster]

I appreciate you reporting it. I’ll give it a try on Linux Mint. I have two different versions of it I can test on, so I’ll see if it will build on both without the suffix. If it does, I’ll commit the fix.

I would rather do it this way, that way I don’t have to continually change the build file in the future every time OpenEXR updates their version.

[Matt Feemster]

I’ve committed a fix, and put some comments in that section of defaults.pri

I left the link library statements for older versions in there commented out, because I have to use an older version of Linux Mint to make the installer due to constraints of AppImage. But I’m the only doing that, so I left the newer ones uncommented by default.

Please have a look and let me know what you think.

[Benjamin Murauer]

I think the lHalf is also only needed for old OpenEXR versions, they seem to have merged in into lOpenEXR nowadays. I can only build Fractorium without the -lHalf line in the file.

[Matt Feemster]

Ok, I’ve commented that out too. If that’s all, then I’ll close this ticket. Thanks for working on it.

[Benjamin Murauer]

Works fine now, thanks for the update!

[Matt Feemster]

Fixed and closed.