On 25 Mar 2022 19:38, Dalas Yoo wrote:
> Hello, I tried to build a newlib for cross-compile toolchain.
> 
> I configured libgloss below.
> 
> ../libgloss/configure --target=aarch64-linux

fairly certain this target doesn't make sense for libgloss.  it says your OS
is Linux.  libgloss builds for bare-metal targets.  maybe someone else can
comment whether libgloss would ever do anything useful for a linux target.

did you try aarch64-elf ?
-mike