Trying to build a flatpak for my app, but it needs inkscape in order to build the app (obviously not a dependency of the app at runtime, just a build time). inkscape is installed on the host system, but I understand that flatpak-builder cannot run commands from the host. Can I depend on https://flathub.org/apps/details/org.inkscape.Inkscape somehow? Or do I have to build all of Inkscape from source just to build my app?
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singpolyma
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1If it’s just a build dependency, you could just add a binary build into the sources and use that. – Juraj Fiala Jan 06 '21 at 20:54
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As to depending on another Flatpak package… tricky. You’d have to depend on a concrete commit not to violate build reproducibility, and AFAIK Flathub only stores the last two versions. Something like this isn’t possible with the current infrastructure. – Juraj Fiala Jan 06 '21 at 21:00
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Any flatpak has files that are available from the filesystem, so you can link to the inkscape flatpak from builder. It may actually link libraries automatically if the Inkscape flatpak is intended to be a runtime, but if not, point builder to the libraries contained in /var/lib/flatpak/app/org.inkscape.Inkscape/x86_64/stable/active/files/lib, and hopefully it'll have what you're looking for.
Definitely a lot easier than a package manager to clean up afterward if you don't want to keep the libraries when you're done.
AveryFreeman
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