| 1 |
205 |
julius |
/* Provide relocatable packages.
|
| 2 |
|
|
Copyright (C) 2003 Free Software Foundation, Inc.
|
| 3 |
|
|
Written by Bruno Haible <bruno@clisp.org>, 2003.
|
| 4 |
|
|
|
| 5 |
|
|
This program is free software; you can redistribute it and/or modify it
|
| 6 |
|
|
under the terms of the GNU Library General Public License as published
|
| 7 |
|
|
by the Free Software Foundation; either version 2, or (at your option)
|
| 8 |
|
|
any later version.
|
| 9 |
|
|
|
| 10 |
|
|
This program is distributed in the hope that it will be useful,
|
| 11 |
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 13 |
|
|
Library General Public License for more details.
|
| 14 |
|
|
|
| 15 |
|
|
You should have received a copy of the GNU Library General Public
|
| 16 |
|
|
License along with this program; if not, write to the Free Software
|
| 17 |
|
|
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
|
| 18 |
|
|
USA. */
|
| 19 |
|
|
|
| 20 |
|
|
#ifndef _RELOCATABLE_H
|
| 21 |
|
|
#define _RELOCATABLE_H
|
| 22 |
|
|
|
| 23 |
|
|
/* This can be enabled through the configure --enable-relocatable option. */
|
| 24 |
|
|
#if ENABLE_RELOCATABLE
|
| 25 |
|
|
|
| 26 |
|
|
/* When building a DLL, we must export some functions. Note that because
|
| 27 |
|
|
this is a private .h file, we don't need to use __declspec(dllimport)
|
| 28 |
|
|
in any case. */
|
| 29 |
|
|
#if defined _MSC_VER && BUILDING_DLL
|
| 30 |
|
|
# define RELOCATABLE_DLL_EXPORTED __declspec(dllexport)
|
| 31 |
|
|
#else
|
| 32 |
|
|
# define RELOCATABLE_DLL_EXPORTED
|
| 33 |
|
|
#endif
|
| 34 |
|
|
|
| 35 |
|
|
/* Sets the original and the current installation prefix of the package.
|
| 36 |
|
|
Relocation simply replaces a pathname starting with the original prefix
|
| 37 |
|
|
by the corresponding pathname with the current prefix instead. Both
|
| 38 |
|
|
prefixes should be directory names without trailing slash (i.e. use ""
|
| 39 |
|
|
instead of "/"). */
|
| 40 |
|
|
extern RELOCATABLE_DLL_EXPORTED void
|
| 41 |
|
|
set_relocation_prefix (const char *orig_prefix,
|
| 42 |
|
|
const char *curr_prefix);
|
| 43 |
|
|
|
| 44 |
|
|
/* Returns the pathname, relocated according to the current installation
|
| 45 |
|
|
directory. */
|
| 46 |
|
|
extern const char * relocate (const char *pathname);
|
| 47 |
|
|
|
| 48 |
|
|
/* Memory management: relocate() leaks memory, because it has to construct
|
| 49 |
|
|
a fresh pathname. If this is a problem because your program calls
|
| 50 |
|
|
relocate() frequently, think about caching the result. */
|
| 51 |
|
|
|
| 52 |
|
|
/* Convenience function:
|
| 53 |
|
|
Computes the current installation prefix, based on the original
|
| 54 |
|
|
installation prefix, the original installation directory of a particular
|
| 55 |
|
|
file, and the current pathname of this file. Returns NULL upon failure. */
|
| 56 |
|
|
extern const char * compute_curr_prefix (const char *orig_installprefix,
|
| 57 |
|
|
const char *orig_installdir,
|
| 58 |
|
|
const char *curr_pathname);
|
| 59 |
|
|
|
| 60 |
|
|
#else
|
| 61 |
|
|
|
| 62 |
|
|
/* By default, we use the hardwired pathnames. */
|
| 63 |
|
|
#define relocate(pathname) (pathname)
|
| 64 |
|
|
|
| 65 |
|
|
#endif
|
| 66 |
|
|
|
| 67 |
|
|
#endif /* _RELOCATABLE_H */
|
