gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / lib / relocatable.h

diff --git a/lib/relocatable.h b/lib/relocatable.h
index 5970be7..131809f 100644 (file)
--- a/lib/relocatable.h
+++ b/lib/relocatable.h
@@ -1,21 +1,19 @@
 /* Provide relocatable packages.
-   Copyright (C) 2003, 2005, 2008 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2005, 2008-2013 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2003.
 
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU Library General Public License as published
-   by the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation; either version 2.1 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
-   Library General Public License for more details.
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Library 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 Lesser General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef _RELOCATABLE_H
 #define _RELOCATABLE_H
@@ -46,15 +44,18 @@ extern "C" {
    instead of "/").  */
 extern RELOCATABLE_DLL_EXPORTED void
        set_relocation_prefix (const char *orig_prefix,
-                             const char *curr_prefix);
+                              const char *curr_prefix);
 
 /* Returns the pathname, relocated according to the current installation
-   directory.  */
+   directory.
+   The returned string is either PATHNAME unmodified or a freshly allocated
+   string that you can free with free() after casting it to 'char *'.  */
 extern const char * relocate (const char *pathname);
 
-/* Memory management: relocate() leaks memory, because it has to construct
-   a fresh pathname.  If this is a problem because your program calls
-   relocate() frequently, think about caching the result.  */
+/* Memory management: relocate() potentially allocates memory, because it has
+   to construct a fresh pathname.  If this is a problem because your program
+   calls relocate() frequently, think about caching the result.  Or free the
+   return value if it was different from the argument pathname.  */
 
 /* Convenience function:
    Computes the current installation prefix, based on the original
@@ -62,8 +63,8 @@ extern const char * relocate (const char *pathname);
    file, and the current pathname of this file.
    Returns it, freshly allocated.  Returns NULL upon failure.  */
 extern char * compute_curr_prefix (const char *orig_installprefix,
-                                  const char *orig_installdir,
-                                  const char *curr_pathname);
+                                   const char *orig_installdir,
+                                   const char *curr_pathname);
 
 #else