https://bugs.winehq.org/show_bug.cgi?id=52191
--- Comment #1 from Nikolay Sivov bunglehead@gmail.com --- No, this looks accurate. The issue seems to be about having two functions variants, one in lfs_wrap.c and actual implementation in libmpg123.c. The wrapper does not check for null pointer, while implementation does.
It could a configuration issue, or a difference in win32 build. Maybe libmpg123 devs would be open to patching lfs_wrap.c accordingly.