New comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/pull/43455#issuecomment-1511365721

Comment:
Alright, I have run through the complete build with a few fixes:
- `librsvg` needs a revbump
- `libgphoto2` needs a revbump
- `cups-filters` was broken by a prior `qpdf` update and needs to be built with `-std=c++17` now
- `imagescan` distfiles are no longer available upstream, so we have to grab them from `sources.voidlinux.org`.
- `gthumb` needs `libgomp-devel` in `makedepends`.
- `wxWdigets-gtk3` needs a temporary workaround: `imlib2` and `spandsp` need to be in `makedepends` to fool the dependency resolver into properly ordering the build.