https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67373
Senthil Kumar Selvaraj <senthil_kumar.selvaraj at atmel dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |senthil_kumar.selvaraj@atme | |l.com --- Comment #1 from Senthil Kumar Selvaraj <senthil_kumar.selvaraj at atmel dot com> --- Looks like the build couldn't find an avr assembler that runs on the build machine. Building binutils with host=mingw creates an assembler that can only run on Windows. Can you try building binutils without setting host=mingw, add that to the PATH and then try building again?