* libc/include/stdio_ext.h: New header.

* libc/stdio/fpurge.c [!__rtems__] (__fpurge): New function.

newlib/ChangeLog

@@ -1,3 +1,8 @@
+2011-05-19  Yaakov Selkowitz  <yselkowitz@users.sourceforge.net>
+
+	* libc/include/stdio_ext.h: New header.
+	* libc/stdio/fpurge.c [!__rtems__] (__fpurge): New function.
+
 2011-05-19  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
 
 	* Makefile.am (install-data-local): Fix condition and rm call.

newlib/libc/include/stdio_ext.h

@@ -0,0 +1,22 @@
+/*
+ * stdio_ext.h
+ *
+ * Definitions for I/O internal operations, originally from Solaris.
+ */
+
+#ifndef _STDIO_EXT_H_
+#define _STDIO_EXT_H_
+
+#ifdef __rtems__
+#error "<stdio_ext.h> not supported"
+#endif
+
+#include <stdio.h>
+
+_BEGIN_STD_C
+
+void	 _EXFUN(__fpurge,(FILE *));
+
+_END_STD_C
+
+#endif /* _STDIO_EXT_H_ */

newlib/libc/stdio/fpurge.c

@@ -11,6 +11,8 @@ INDEX
 	fpurge
 INDEX
 	_fpurge_r
+INDEX
+	__fpurge
 
 ANSI_SYNOPSIS
 	#include <stdio.h>
@@ -18,6 +20,11 @@ ANSI_SYNOPSIS
 
 	int _fpurge_r(struct _reent *<[reent]>, FILE *<[fp]>);
 
+	#include <stdio.h>
+	#include <stdio_ext.h>
+	void  __fpurge(FILE *<[fp]>);
+
+
 DESCRIPTION
 Use <<fpurge>> to clear all buffers of the given stream.  For output
 streams, this discards data not yet written to disk.  For input streams,
@@ -26,6 +33,8 @@ but not yet read via <<getc>>.  This is more severe than <<fflush>>,
 and generally is only needed when manually altering the underlying file
 descriptor of a stream.
 
+<<__fpurge>> behaves exactly like <<fpurge>> but does not return a value.
+
 The alternate function <<_fpurge_r>> is a reentrant version, where the
 extra argument <[reent]> is a pointer to a reentrancy structure, and
 <[fp]> must not be NULL.
@@ -42,6 +51,9 @@ No supporting OS subroutines are required.
 
 #include <_ansi.h>
 #include <stdio.h>
+#ifndef __rtems__
+#include <stdio_ext.h>
+#endif
 #include <errno.h>
 #include "local.h"
 
@@ -87,4 +99,15 @@ _DEFUN(fpurge, (fp),
   return _fpurge_r (_REENT, fp);
 }
 
+#ifndef __rtems__
+
+void
+_DEFUN(__fpurge, (fp),
+       register FILE * fp)
+{
+  _fpurge_r (_REENT, fp);
+}
+
+#endif
+
 #endif /* _REENT_ONLY */