https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95712
--- Comment #15 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This should have caught it:
case "$have_compiler:$host:$target:$enable_bootstrap" in
*:*:*:no) ;;
# Default behavior. Enable bootstrap if we have a compiler
# and we are in a native configuration.
yes:$build:$build:default)
enable_bootstrap=yes ;;
*:*:*:default)
enable_bootstrap=no ;;
# We have a compiler and we are in a native configuration, bootstrap is ok
yes:$build:$build:yes)
;;
# Other configurations, but we have a compiler. Assume the user knows
# what he's doing.
yes:*:*:yes)
AC_MSG_WARN([trying to bootstrap a cross compiler])
;;
# No compiler: if they passed --enable-bootstrap explicitly, fail
no:*:*:yes)
AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
# Fail if wrong command line
*)
AC_MSG_ERROR([invalid option for --enable-bootstrap])
;;
esac
It does seem like buildroot does the incorrect thing if the target and the
build/host are the same arch. THIS IS a buildroot issue and not a GCC issue.