rtems-tools buid failed with '--host=x86_64-w64-mingw32'
Original author: jameszxj
rtems-tools build failed with "--host=x86_64-w64-mingw32" after the commit https://git.rtems.org/rtems-tools/commit/?id=a4b312ee4f3d8c93ab0d45d568879069e7ac7d7a 'writeargv' is undefined. add libierty/argv.c will solve this problem.