The wine package developed at https://build.opensuse.org/package/show/Emulators/wine creates binary files for Windows for the i586 architecture, installs them under /usr/lib/wine/i386-window, and generates additional packages for use on an x86_64 installation using mkbaselibs. When implementing https://bugzilla.opensuse.org/show_bug.cgi?id=1236187, it was discovered that the package for the cross-compiled binaries does not contain any debug files.
The build log then states
... creating baselibs
wine-win-debuginfo(x86_64:32bit): empty filelist, skipping rpm
The cause is that the rule files used by mkbaselibs do not contain the necessary file extensions, which are listed below:
find /usr/lib/wine/i386-windows/ -type f | sed 's,^.*.,,g' | sort | uniq
acm
ax
com
cpl
dll
dll16
drv
drv16
ds
exe
exe16
mod16
msstyles
ocx
sys
tlb
vxd