X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ffreadahead.h;h=85c16b998d813f3973fa3ff36b38f142e59595dd;hb=7ef6c64e210ac0979d7e8ac69bc5b5208c2405ab;hp=54466b4075ef23ddf58802f771ca9038c7a7b7c0;hpb=8d8eda4eab3d2801251daf4eb31756c3595e2fc6;p=gnulib.git

diff --git a/lib/freadahead.h b/lib/freadahead.h
index 54466b407..85c16b998 100644
--- a/lib/freadahead.h
+++ b/lib/freadahead.h
@@ -1,5 +1,5 @@
 /* Retrieve information about a FILE stream.
-   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+   Copyright (C) 2007-2014 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