Hello! I have found another problem, this time in libffi. Something appears to be wrong with the binary, and on my system it failed to execute its DllMain. As a result, it did not register its .eh_frame contents, and upon module unload i got abort() in __deregister_frame_info_bases() I started to research it, but cygffi-6.dll contains no symbols. So, in order to get a version with symbols, i rebuilt it from the source using up to date gcc. The problem magically went away with the rebuilt binary. Perhaps it was some obscure gcc/ld bug. Is it possible for the maintainer to update the binary ?
Kind regards, Pavel Fedin Expert Engineer Samsung Electronics Research center Russia