Dear maintainer, while I have not been able to reproduce the error using a Debian unstable chroot and setting the same CFLAGS and LDFLAGS as the build server does, it's clearly a bug in the source code that a C compiler can complain about.
It should be fixed with this upstream commit: https://github.com/mmitch/gbsplay/commit/751046eb92ca70bb27e97150fd675ee9ae45413f While this fix might be applied directly as a patch as well, we'll try to release gbsplay 0.0.101 in the next days to include the fix as well as some other improvements. After that the gbsplay package would need to be updated to the newest upstream version (which would also fix bug #1105313). Regards, Christian from upstream

