Working on Win XP SP2, with parameter "-D__GNUC__=3.45" i get this:
c:/tcc/include/stdio.h:134: ';' expected
being the line 134
typedef __builtin_va_list va_list;


Complete paragrah is:
/*

• I used to include stdarg.h at this point, in order to allow for the
• functions later on in the file which use va_list. That conflicts with
• using stdio.h and varargs.h in the same file, so I do the typedef myself.

 */
#ifndef _VA_LIST
#define _VA_LIST
#if defined _GNUC_ && _GNUC_ >= 3
typedef __builtin_va_list va_list;
#else
typedef char* va_list;
#endif
#endif