+2019-09-29 Bruno Haible <bruno@clisp.org>
+
+ fbufmode: Fix compilation error on glibc >= 2.28 systems.
+ * lib/stdio-impl.h (_IO_UNBUFFERED): Define fallback on glibc >= 2.28.
+
2019-09-28 Bruno Haible <bruno@clisp.org>
Update comments that refer to POSIX.
the same implementation of stdio extension API, except that some fields
have different naming conventions, or their access requires some casts. */
-/* Glibc 2.28 made _IO_IN_BACKUP private. For now, work around this
- problem by defining it ourselves. FIXME: Do not rely on glibc
+/* Glibc 2.28 made _IO_UNBUFFERED and _IO_IN_BACKUP private. For now, work
+ around this problem by defining them ourselves. FIXME: Do not rely on glibc
internals. */
-#if !defined _IO_IN_BACKUP && defined _IO_EOF_SEEN
-# define _IO_IN_BACKUP 0x100
+#if defined _IO_EOF_SEEN
+# if !defined _IO_UNBUFFERED
+# define _IO_UNBUFFERED 0x2
+# endif
+# if !defined _IO_IN_BACKUP
+# define _IO_IN_BACKUP 0x100
+# endif
#endif
/* BSD stdio derived implementations. */