There is an updated pull request by joshuakraemer against master on the void-packages repository

https://github.com/joshuakraemer/void-packages dosbox-staging
https://github.com/void-linux/void-packages/pull/31258

New package: dosbox-staging-0.77.0
- [x] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements)
- [x] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me

This is a draft based on a current git snapshot, because DOSBox Staging 0.77.0 has not been released yet.

@kcgen wrote (https://github.com/joshuakraemer/void-packages/commit/2d0e6a7ee8328c8210c8ed272dc38dd8317296ff#commitcomment-51084600):
> @joshuakraemer, looks good!
> 
> I realize this is using the `master` branch right now until we can wrap up 0.77. In the meantime, regarding: `-Duse_mt32emu=false`, can you try removing that? Meson should be able to build it internally based on its wrap. There should be no copyright concerns, as users must provide their own ROMs for this feature.

Thank you for your comments. I have added libmt32emu as a separate package, and successfully tested MT-32 emulation.

> Also, there might be more configuration options needed to ensure an optimized binary is built. Here's what I use:
> 
> ```shell
> -Dbuildtype=release \
> -Dc_args=-Ofast \
> -Dcpp_args=-Ofast \
> -Db_asneeded=true -Dstrip=true \
> -Ddefault_library=static \
> -Dfluidsynth:enable-floats=true \
> -Dfluidsynth:try-static-deps=true 
> ```
> 
> Perhaps the static settings could be dropped depending on what void Linux prefers.
> I personally want to ensure that FluidSynth is compiled with the same optimization level (and uses our highly stripped down FluidSynth configuration) to ensure good performance on some of my CPU-limited platforms.

Void's build options for meson packages are specified in https://github.com/void-linux/void-packages/blob/master/common/build-style/meson.sh (using -O2 from the CFLAGS environment variable). The enable-floats option could probably be added to Void's FluidSynth package (https://github.com/void-linux/void-packages/blob/master/srcpkgs/fluidsynth/template), but I do not know if it would be a suitable default outside of DosBox.

A patch file from https://github.com/void-linux/void-packages/pull/31258.patch is attached