X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ffwritable.c;h=691ddc573b5325960e43a52ddbb0e62bb77edf8d;hb=cb9819cbb9261bd50c3466cf0a4cd873f0d7ebd7;hp=f821cfbd29a9a567acfdb482ea8ce0405d49fe0c;hpb=cc6492ad1a98f8e0609788ed65dc7d2b874c991e;p=gnulib.git

diff --git a/lib/fwritable.c b/lib/fwritable.c
index f821cfbd2..691ddc573 100644
--- a/lib/fwritable.c
+++ b/lib/fwritable.c
@@ -19,22 +19,21 @@
 /* Specification.  */
 #include "fwritable.h"
 
+#include "stdio-impl.h"
+
 bool
 fwritable (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_WRITES) == 0;
-#elif defined __sferror             /* FreeBSD, NetBSD, OpenBSD, MacOS X, Cygwin */
-  return (fp->_flags & (__SRW | __SWR)) != 0;
+#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
+  return (fp_->_flags & (__SRW | __SWR)) != 0;
 #elif defined __EMX__               /* emx+gcc */
   return (fp->_flags & (_IORW | _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 & (_IORW | _IOWRT)) != 0;
 #elif defined __QNX__               /* QNX */
   return (fp->_Mode & 0x2 /* _MOPENW */) != 0;