remove old cruft that doesnt matter for uClibc and breaks anyways when using -std=c99

include/error.h

@@ -20,24 +20,9 @@
 #ifndef _ERROR_H
 #define _ERROR_H 1
 
-#ifndef __attribute__
-/* This feature is available in gcc versions 2.5 and later.  */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
-#  define __attribute__(Spec) /* empty */
-# endif
-/* The __-protected variants of `format' and `printf' attributes
-   are accepted by gcc versions 2.6.4 (effectively 2.7) and later.  */
-# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
-#  define __format__ format
-#  define __printf__ printf
-# endif
-#endif
+#include <features.h>
 
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-#if defined __STDC__ && __STDC__
+__BEGIN_DECLS
 
 /* Print a message with `fprintf (stderr, FORMAT, ...)';
    if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
@@ -55,12 +40,6 @@ extern void error_at_line (int __status, int __errnum, const char *__fname,
    function without parameters instead.  */
 extern void (*error_print_progname) (void);
 
-#else
-void error ();
-void error_at_line ();
-extern void (*error_print_progname) ();
-#endif
-
 /* This variable is incremented each time `error' is called.  */
 extern unsigned int error_message_count;
 
@@ -68,8 +47,6 @@ extern unsigned int error_message_count;
    variable controls whether this mode is selected or not.  */
 extern int error_one_per_line;
 
-#ifdef	__cplusplus
-}
-#endif
+__END_DECLS
 
 #endif /* error.h */