K, got it to crash on x86_64 with a bit more fiddling. (a case where steps to reproduce would have been handy)

This isnt a crash on open it. It happens here when switching tasks with it.. but other things could trigger it to I haven't tried looking for all the edge cases.

did an strace on it. It exited with:

oll([{fd=3, events=POLLIN}], 1, -1)    = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\34\0000\7\307\0\0\0L\1\0\0\314PB\26\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
recvmsg(3, {msg_namelen=0}, 0)          = -1 EAGAIN (Resource temporarily unavailable)
recvmsg(3, {msg_namelen=0}, 0)          = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN}], 1, -1)    = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\34\0000\7\307\0\0\0K\1\0\0\316PB\26\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", iov_len=4096}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 32
recvmsg(3, {msg_namelen=0}, 0)          = -1 EAGAIN (Resource temporarily unavailable)
recvmsg(3, {msg_namelen=0}, 0)          = -1 EAGAIN (Resource temporarily unavailable)
--- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=NULL} ---
+++ killed by SIGSEGV (core dumped) +++
Segmentation fault (core dumped)

since it looks to be a very quick rebuild I'll try that, see if it fixes the issue or not.

Ok So not a quick and simple rebuild as it no longer builds correctly...

And I'm out of time for now so assigning to the maintainer

that segfault bug should be fixed in 'wbar-2.3.4-4' - this program needs a lot of TLC though - it hasnt been maintained in years - i will leave this open issue for some time