/* Specification. */
#include "fwriting.h"
+#include "stdio-impl.h"
+
bool
fwriting (FILE *fp)
{
/* Most systems provide FILE as a struct and the necessary bitmask in
<stdio.h>, because they need it for implementing getc() and putc() as
fast macros. */
-#if defined _IO_ferror_unlocked /* GNU libc, BeOS */
+#if defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
return (fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) != 0;
-#elif defined __sferror /* FreeBSD, NetBSD, OpenBSD, MacOS X, Cygwin */
- return (fp->_flags & __SWR) != 0;
+#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
+ return (fp_->_flags & __SWR) != 0;
#elif defined __EMX__ /* emx+gcc */
return (fp->_flags & _IOWRT) != 0;
#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
-# if defined _SCO_DS /* OpenServer */
-# define _flag __flag
-# endif
return (fp->_flag & _IOWRT) != 0;
#elif defined __UCLIBC__ /* uClibc */
return (fp->__modeflags & __FLAG_WRITING) != 0;