JonY wrote: > Looks like something wrong with libgcc? Check the libgcc symbols from > 7.1.0 and the installed version. Not sure if you can workaround by > installing libgcc first. > I solved in in the way, that I took the oppurtunity to switch to cygwin64 and start completely from scratch. So my ~15 year old cygwin installation got refreshed. Compilation worked with the new setup without problems.
