user supplied header file accidentally named 'wgtcc.h'

[huangguiyang]

create a header file named wgtcc.h:

fuck

foo.c:

#include <wgtcc.h>
void foo() {}

$ wgtcc -E foo.c -I.

fuckfuck
void foo() {}

The output is strange.

If we don't create wgtcc.h, the internal wgtcc.h would be included accidentally.

In short, the internal wgtcc.h must NOT be placed in the standard including path.