X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ffreadahead.h;h=c691f89c0f4ef10d37b56111b610becadd4d725c;hb=4779b635ef35c7b0bc4044fcb5bc746d06f158c4;hp=af03b89956d036738fbeefcc829d371a49af6d46;hpb=d60f3b0c6b0f93a601acd1cfd3923f94ca05abb0;p=gnulib.git

diff --git a/lib/freadahead.h b/lib/freadahead.h
index af03b8995..c691f89c0 100644
--- a/lib/freadahead.h
+++ b/lib/freadahead.h
@@ -1,5 +1,5 @@
 /* Retrieve information about a FILE stream.
-   Copyright (C) 2007-2011 Free Software Foundation, Inc.
+   Copyright (C) 2007-2013 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -17,10 +17,6 @@
 #include <stddef.h>
 #include <stdio.h>
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 /* Assuming the stream STREAM is open for reading:
    Return the number of bytes waiting in the input buffer of STREAM.
    This includes both the bytes that have been read from the underlying input
@@ -31,8 +27,21 @@ extern "C" {
 
    STREAM must not be wide-character oriented.  */
 
-extern size_t freadahead (FILE *stream);
+#if HAVE___FREADAHEAD /* musl libc */
+
+# include <stdio_ext.h>
+# define freadahead(stream) __freadahead (stream)
+
+#else
 
-#ifdef __cplusplus
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+extern size_t freadahead (FILE *stream) _GL_ATTRIBUTE_PURE;
+
+# ifdef __cplusplus
 }
+# endif
+
 #endif