qemu-user fails to run wineserver on ppc64el host

When attempting to run wineserver on a 64-bit ppc64el host via QEMU's user-mode i386 emulation, a file locking operation fails.

Command line:
qemu-i386-static /usr/lib/wine-development/wineserver32

Output:
wineserver: fcntl /tmp/.wine-0/server-17-14d21bf/lock: Invalid argument

Relevant portion of strace:
fcntl(6, F_SETLK64, 0x3fffe8802218) = -1 EINVAL (Invalid argument)