Hi Gottfried,
I wanted to install a package "gtkhash" which I could not find in GNU
packages.
How can I install it?
After downloading it and trying to install it, it said: unknown package
guix install gtkhash-1.4
guix install: Fehler: gtkhash-1.4: Unbekanntes Paket
Guix only knows of packages for which there is a package definition.
There is no package definition for gtkhash.
Guix unfortunately cannot just take any tarball and build it.
The good news is that writing a package definition (and optionally
adding it to Guix) can be straight forward. This is the build system
file:
https://github.com/tristanheaven/gtkhash/blob/master/meson.build
There we see that it needs a bunch of things (like nettle, blake2, zlib,
mbedtls, openssl, etc) for which we should have packages. Packaging it
may be a little tricky because of the many dependencies, but it looks
doable. We could do this together if you want.
Another thing I felt the need to clarify: Guix has thousands of packages
that are not GNU packages. I think you meant that there is no package
definition for gtkhash in gnu/packages/*.scm, which is correct.