[packman] Support for iscan on Rasberry Pi with aarch64

[Freek de Kruijf]

I found the package iscan to support all-in-one devices of Epson for scanning 
documents. I tried to use it on a Rasberry Pi 4B with openSUSE Leap 15.6, but 
the package is only available for the x86_64 architecture.

Is it possible to generate the package also for the aarch64 architecture?

I tried to download the source package and to compile it with:

rpmbuild -bb iscan.spec in /usr/src/packages/SPECS

I did specify aarch64 in the line with ExclusiveArch but got an error message:

checking whether to build the frontend application... configure: error: 
requires IA32 architecture

-- 
fr.gr.

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Freek de Kruijf