It does not have support for preprocessors, as it is #include

[arteze]

When wanting to do #include <stdio.h> an error appears:

mzcc --dump-ast ./main.c -o ./x
lexer.c:209: Unexpected character: '#'

[arteze]

Ohh, ok... ¿It has support towards extern?

[arteze]

I tried to do the following but it fails:

extern int printf (const char *__restrict __format, ...);