https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65559
--- Comment #10 from Rainer Emrich <rai...@emrich-ebersheim.de> --- (In reply to Richard Biener from comment #8) > Unfortunately -Wl,-debug is missing ;) Ok, I uploaded a version including -Wl,-debug > > It would be interesting to see the lto-wrapper invocation (is there sth like > strace on mingw?) and to eventually attach to lto-wrapper with a debugger... I can't tell how to do this. Kai can you have a look?