https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92729
--- Comment #12 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- Simulator: avrtest core simulator hosted on SourceForge as part of WinAVR. Libc: avr-libc trunk hosted on nongnu.org. There are several patches not yet integrated: recent xtiny devices, fixes in libm to adjust to the recent double64 additions, and extensions for the build environment to handle the new avr-gcc configure options for double multilib layout. Patches are pending for some time; you'll have to resolve conflicts. Binutils is vanilla from sourceware.org.
