New comment by manfredu on void-packages repository

https://github.com/void-linux/void-packages/pull/24991#issuecomment-695807887

Comment:
> So I merged your PR locally and tried `builddir/imwheel-1.0.0pre12/configure --help`
> It lists `--enable-gpm` which means that `--disable-gpm` should disable the check also for cross.
> However, it does not disable looking for `gpm.c` so I'm going to try to patch `configure.in` and rip out that entire section for `gpm-imwheel`.
> Also `jax/jax.c` needs a patch to not use `(int)` to cast a pointer, but `(intptr_t)` which is in `#include <stdint.h>`.
> 
> Long story short: I got it cross building now and will push it with the required patches fixes because I think it would take you a long time to figure the details. I hope this doesn't spoil it for you :)

Thanks a lot for your help! :-)