20.04 on mac M1

[Jerry Geis]

hi all - I used this link https://www.youtube.com/watch?v=hnwK-nkXolc to
install Ubuntu arm on my M1 laptop along with UTM. Worked great.

my issue is I am not able to find sys/io.h  - I'm trying to compile a
program that uses it and it is not present.

So I tried "apt-file search sys/io.h" and it gives some files - but none of
them are placed in
/usr/include/sys/io.h file path.

I still tried installing some of those packages - but still the compiler is
not finding the file???

There isnt even a /usr/include/sys directory on the 20.04 arm ? yes
build-essential is installed.

What do I do with that ?
Thanks,

Jerry
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