[Bug 57857] New: Unable to run 32bit applications after loader changes in 10.2

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57857

Bug ID: 57857
           Summary: Unable to run 32bit applications after loader changes
                    in 10.2
           Product: Wine
           Version: 10.2
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: loader
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

This happens when wine is build using the PKGBUILD from achlinux:
https://gitlab.archlinux.org/archlinux/packaging/packages/wine/-/blob/main/P...

i.e. buildin the 64bit libraries using `--enable-win64` and then the 32bit
libraries separately.
Arch uses /usr/lib32 for the 32bit libraries, and therfore builds them with
`--libdir=/usr/lib32`

It does work when testing it directly from the build directory, but not after
installing.
According to strace, the new loader tries to execute wine-preloader when
running a 32bit program from:

/usr/lib/wine/i386-unix/wine-preloader

which fails, since it doesn't exist.

The binary now would need to look for the preloader relative to the the 32bit
libdir, so it would need to know what's being used for that in the 32bit
compilation.

When building with in the new WOW mode with `--enable-archs=i386,x86_64` then
everything works fine.