#include <sfio.h>
#endif
+/* sfio 2000 changed _stdopen to _stdfdopen */
+#if SFIO_VERSION >= 20000101L
+#define _stdopen _stdfdopen
+#endif
+
extern Sfio_t* _stdopen _ARG_((int, const char*));
extern int _stdprintf _ARG_((const char*, ...));
#define PerlIO_has_cntptr(f) 1
#define PerlIO_get_ptr(f) ((f)->next)
#define PerlIO_get_cnt(f) ((f)->endr - (f)->next)
-#define PerlIO_canset_cnt(f) 1
-#define PerlIO_fast_gets(f) 1
-#define PerlIO_set_ptrcnt(f,p,c) ((f)->next = (p))
-#define PerlIO_set_cnt(f,c) 1
+#define PerlIO_canset_cnt(f) 0
+#define PerlIO_fast_gets(f) 1
+#define PerlIO_set_ptrcnt(f,p,c) STMT_START {(f)->next = (unsigned char *)(p); assert(FILE_cnt(f) == (c))} STMT_END
+#define PerlIO_set_cnt(f,c) Perl_croak(aTHX_ "Cannot set 'cnt' of FILE * on this system");
#define PerlIO_has_base(f) 1
#define PerlIO_get_base(f) ((f)->data)