extern-inline: make safe for -Wundef usage

[gnulib.git] / lib / freading.h

diff --git a/lib/freading.h b/lib/freading.h
index 9bd2eaf..88ea789 100644 (file)
--- a/lib/freading.h
+++ b/lib/freading.h
@@ -1,19 +1,18 @@
 /* Retrieve information about a FILE stream.
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007-2013 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   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
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <stdbool.h>
 #include <stdio.h>
@@ -21,7 +20,7 @@
 /* Return true if the stream STREAM is opened read-only, or if the
    last operation on the stream was a read operation.  Return false if
    the stream is opened write-only or append-only, or if it supports
-   writing and there is no current read operation (such as fputc).
+   writing and there is no current read operation (such as fgetc).
 
    freading and fwriting will never both be true.  If STREAM supports
    both reads and writes, then:
@@ -33,7 +32,8 @@
 
    STREAM must not be wide-character oriented.  */
 
-#if HAVE___FREADING && !defined __GLIBC__ /* Solaris >= 7, not glibc >= 2.2  */
+#if HAVE___FREADING && (!defined __GLIBC__ || defined __UCLIBC__ || __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
+/* Solaris >= 7, not glibc >= 2.2, but glibc >= 2.7, or musl libc  */
 
 # include <stdio_ext.h>
 # define freading(stream) (__freading (stream) != 0)