use _GL_ATTRIBUTE_CONST and _GL_ATTRIBUTE_PURE

[pspp] / lib / file-type.c

diff --git a/lib/file-type.c b/lib/file-type.c
index 0a6c3ee77e5d88f4c50f8ee95c587d08463272d7..f7090cdd1dc5ae20de6fe449f7af5bff5c44f8f8 100644 (file)
--- a/lib/file-type.c
+++ b/lib/file-type.c
@@ -1,12 +1,12 @@
 /* Return a string describing the type of a file.
 
-   Copyright (C) 1993, 1994, 2001, 2002, 2004, 2005 Free Software
+   Copyright (C) 1993-1994, 2001-2002, 2004-2006, 2009-2011 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
@@ -14,23 +14,26 @@
    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.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by Paul Eggert.  */
 
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
 
 #include "file-type.h"
 
-#include "stat-macros.h"
-
 #include <gettext.h>
 #define _(text) gettext (text)
 
-char const *
+/* The attribute __pure__ was added in gcc 2.96.  */
+#undef _GL_ATTRIBUTE_PURE
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
+# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
+#else
+# define _GL_ATTRIBUTE_PURE /* empty */
+#endif
+
+char const * _GL_ATTRIBUTE_PURE
 file_type (struct stat const *st)
 {
   /* See POSIX 1003.1-2001 XCU Table 4-8 lines 17093-17107 for some of