stdio.h: update partially, mainly for POSIX 2008

Guard some UCLIBC specific parts.
Add comment about bits/getopt.h.
open_memstream.c: remove __restrict according to SuSv4.

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

include/stdio.h

@@ -282,15 +282,17 @@ extern FILE *fdopen (int __fd, __const char *__modes) __THROW __wur;
 libc_hidden_proto(fdopen)
 #endif
 
-#ifdef	__USE_GNU
 #ifdef __UCLIBC_HAS_GLIBC_CUSTOM_STREAMS__
+#ifdef	__USE_GNU
 /* Create a new stream that refers to the given magic cookie,
    and uses the given functions for input and output.  */
 extern FILE *fopencookie (void *__restrict __magic_cookie,
 			  __const char *__restrict __modes,
 			  _IO_cookie_io_functions_t __io_funcs) __THROW __wur;
 libc_hidden_proto(fopencookie)
+#endif
 
+#ifdef __USE_XOPEN2K8
 /* Create a new stream that refers to a memory buffer.  */
 extern FILE *fmemopen (void *__s, size_t __len, __const char *__modes)
   __THROW __wur;
@@ -298,8 +300,7 @@ extern FILE *fmemopen (void *__s, size_t __len, __const char *__modes)
 /* Open a stream that writes into a malloc'd buffer that is expanded as
    necessary.  *BUFLOC and *SIZELOC are updated with the buffer's location
    and the number of characters written on fflush or fclose.  */
-extern FILE *open_memstream (char **__restrict __bufloc,
-			     size_t *__restrict __sizeloc) __THROW __wur;
+extern FILE *open_memstream (char **__bufloc, size_t *__sizeloc) __THROW __wur;
 libc_hidden_proto(open_memstream)
 #endif
 #endif
@@ -397,7 +398,9 @@ extern int asprintf (char **__restrict __ptr,
 		     __const char *__restrict __fmt, ...)
      __THROW __attribute__ ((__format__ (__printf__, 2, 3))) __wur;
 libc_hidden_proto(asprintf)
+#endif
 
+#ifdef __USE_XOPEN2K8
 /* Write formatted output to a file descriptor.
 
    These functions are not part of POSIX and therefore no official
@@ -492,8 +495,10 @@ libc_hidden_proto(getc_unlocked)
 extern int getchar_unlocked (void);
 libc_hidden_proto(getchar_unlocked)
 
+# ifdef __UCLIBC__
 /* SUSv3 allows getc_unlocked to be a macro */
-#define getc_unlocked(_fp) __GETC_UNLOCKED(_fp)
+#  define getc_unlocked(_fp) __GETC_UNLOCKED(_fp)
+# endif
 #endif /* Use POSIX or MISC.  */
 
 #ifdef __USE_MISC
@@ -549,8 +554,10 @@ extern int fputc_unlocked (int __c, FILE *__stream);
 extern int putc_unlocked (int __c, FILE *__stream);
 extern int putchar_unlocked (int __c);
 
+# ifdef __UCLIBC__
 /* SUSv3 allows putc_unlocked to be a macro */
-#define putc_unlocked(_ch, _fp) __PUTC_UNLOCKED(_ch, _fp)
+#  define putc_unlocked(_ch, _fp) __PUTC_UNLOCKED(_ch, _fp)
+# endif
 #endif /* Use POSIX or MISC.  */
 
 
@@ -594,7 +601,7 @@ libc_hidden_proto(fgets_unlocked)
 #endif
 
 
-#ifdef	__USE_GNU
+#ifdef	__USE_XOPEN2K8
 /* Read up to (and including) a DELIMITER from STREAM into *LINEPTR
    (and null-terminate it). *LINEPTR is a pointer returned from malloc (or
    NULL), pointing to *N characters of space.  It is realloc'd as
@@ -890,11 +897,15 @@ extern void funlockfile (FILE *__stream) __THROW;
    declared here which do not belong into this header.  But we have to
    follow.  In GNU mode we don't do this nonsense.  */
 # define __need_getopt
+/* keep this on uClibc in bits/, we need it when GNU_GETOPT is disabled */
 # include <bits/getopt.h>
 #endif	/* X/Open, but not issue 6 and not for GNU.  */
 
 /* If we are compiling with optimizing read this file.  It contains
    several optimizing inline functions and macros.  */
+
+#ifdef __UCLIBC__
+
 #define fgetc(_fp)                   __FGETC(_fp)
 #define fputc(_ch, _fp)              __FPUTC(_ch, _fp)
 
@@ -929,6 +940,8 @@ extern void funlockfile (FILE *__stream) __THROW;
 #define ferror_unlocked(_fp)         __FERROR_UNLOCKED(_fp)
 #endif
 
+#endif
+
 __END_DECLS
 
 #endif /* <stdio.h> included.  */

libc/stdio/open_memstream.c

@@ -128,7 +128,7 @@ static const cookie_io_functions_t _oms_io_funcs = {
  * (ie replace the FILE buffer with the cookie buffer and update FILE bufstart,
  * etc. whenever we seek). */
 
-FILE *open_memstream(char **__restrict bufloc, size_t *__restrict sizeloc)
+FILE *open_memstream(char **bufloc, size_t *sizeloc)
 {
 	register __oms_cookie *cookie;
 	register FILE *fp;