With both wine-devel and wine-devel-32bit installed, it is currently only
possible to compile Winelib DLLs (using winegcc) as 32-bit objects. The
wine-devel package only installs archive files for PE binaries in
/usr/lib64/wine/x86_64-windows, whereas the wine-devel-32bit package installs
archive files for both PE binaries in /usr/lib/wine/i386-windows and for ELF
binaries in /usr/lib/wine/i386-unix.

Building wine from source on my machine yields archive files for 64-bit ELF and
PE binaries (in lib64/x86_64-unix and lib64/i386-windows respectively) and for
32-bit PE binaries (in lib64/i386-windows), though 32-bit ELF binaries can be
compiled and linked using the self-built winegcc.

For context and reference, see the Wine Developer's mailing list thread [1]
where I have asked about this originally.

[1]:
https://list.winehq.org/mailman3/hyperkitty/list/wine-devel@winehq.org/thread/QTPFXY3CHG2TJUPBNE3CGXIKBFRH5CPH/