I hope you get it working, I have just tried in a (basic) debian-testing VM / Gimp 2.10.22 and pulling in old lib files I ended up with this list of dependencies.
libgif.so.4 libgif.so.7 libgslcblas.so.0 libgsl.so.0 libgsl.so.23 libgtksourceview-2.0.so.0 libjpeg.so.8 libnoise.so.0 libpng12.so.0
That got mathmap showing in the menu but mathmap itself crashes. Back to the drawing board. I am not a debian user as such, so no compiling mathmap at the moment
I do like to keep some older programs working on my computer but it is getting harder. Mathmap works with my current kubuntu 20.04 / Gimp 2.10 appimage but other useful utilities such as sk1 gone for good.
libgif.so.4 libgif.so.7 libgslcblas.so.0 libgsl.so.0 libgsl.so.23 libgtksourceview-2.0.so.0 libjpeg.so.8 libnoise.so.0 libpng12.so.0
That got mathmap showing in the menu but mathmap itself crashes. Back to the drawing board. I am not a debian user as such, so no compiling mathmap at the moment
I do like to keep some older programs working on my computer but it is getting harder. Mathmap works with my current kubuntu 20.04 / Gimp 2.10 appimage but other useful utilities such as sk1 gone for good.