Really Hard /prog/ Challenge

Write a C compiler. It doesn't have to follow any rules/syntax/standards except to compile "hello world" and fibs.

>>25
In the distant future shiichan removes the limit for threads.
The old threads such as this becomes filled with things like
>>999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
Back to the holoboards, please!