New comment by kawaiiamber on void-packages repository

https://github.com/void-linux/void-packages/issues/27738#issuecomment-757230739

Comment:
It might be worth noting that the project is actually officially hosted on source forge. Anyways, here was my attempt:
```sh
# Template file for 'jamulus'
 pkgname=jamulus
 version=3.6.2
 revision=1
 build_style=qmake
 configure_args="Jamulus.pro"
 wrksrc="Jamulus${version}"
 makedepends="qt5-declarative-devel jack-devel qjackctl"
 short_desc="Play music online. With friends. For free."
 maintainer="KawaiiAmber <japaneselearning101@gmail.com>"
 license="GPL-2.0-only"
 homepage="https://jamulus.io/"
 distfiles="https://phoenixnap.dl.sourceforge.net/project/llcon/Jamulus/3.6.2/Jamulus-${version}.tar.gz"
 checksum=86d38f7d22b49720a79a246918cb8f16a690bbc7d6cbc8707e93694bab1a074c
```
However, `xbps-src` returns with
```
Project MESSAGE: Jack Audio Interface Enabled.
Project ERROR: jack development package not found
```
For some reason, it doesn't seem to detect the development files in the `jack-devel` package. I could try making a [WIP] PR, but I'm not sure if that's really appropriate to do. I'm pretty new here and don't know if trying to PR a failing package is seen as bad or not, so I just pasted my template here.