Hello world does not compile

Tested inside fedora 43 container, ubuntu 26.04 container and on regular fedora 42 installation, same error
Took example directly from README.md
GCC is present and can compile code just fine:
```
root:/claudes-c-compiler# cat > hello.c << 'EOF'
#include
int main(void) {
printf("Hello from CCC!\n");
return 0;
}
EOF
root:/claudes-c-compiler# ./target/release/ccc -o hello hello.c
/usr/include/stdio.h:34:10: error: stddef.h: No such file or directory
/usr/include/stdio.h:37:10: error: stdarg.h: No such file or directory
ccc: error: 2 preprocessor error(s) in hello.c
root:/claudes-c-compiler# gcc -o hello hello.c
root:/claudes-c-compiler# ./hello
Hello from CCC!
root@1b5343a2f014:/claudes-c-compiler#```