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e50c5f39cc
good chance that gpg2 will now work. Other cleanups. Updated gettext.
80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/* Provide relocatable packages.
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Copyright (C) 2003, 2005 Free Software Foundation, Inc.
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Written by Bruno Haible <bruno@clisp.org>, 2003.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU Library General Public License as published
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by the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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USA. */
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#ifndef _RELOCATABLE_H
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#define _RELOCATABLE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* This can be enabled through the configure --enable-relocatable option. */
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#if ENABLE_RELOCATABLE
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/* When building a DLL, we must export some functions. Note that because
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this is a private .h file, we don't need to use __declspec(dllimport)
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in any case. */
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#if HAVE_VISIBILITY && BUILDING_DLL
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# define RELOCATABLE_DLL_EXPORTED __attribute__((__visibility__("default")))
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#elif defined _MSC_VER && BUILDING_DLL
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# define RELOCATABLE_DLL_EXPORTED __declspec(dllexport)
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#else
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# define RELOCATABLE_DLL_EXPORTED
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#endif
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/* Sets the original and the current installation prefix of the package.
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Relocation simply replaces a pathname starting with the original prefix
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by the corresponding pathname with the current prefix instead. Both
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prefixes should be directory names without trailing slash (i.e. use ""
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instead of "/"). */
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extern RELOCATABLE_DLL_EXPORTED void
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set_relocation_prefix (const char *orig_prefix,
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const char *curr_prefix);
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/* Returns the pathname, relocated according to the current installation
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directory. */
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extern const char * relocate (const char *pathname);
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/* Memory management: relocate() leaks memory, because it has to construct
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a fresh pathname. If this is a problem because your program calls
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relocate() frequently, think about caching the result. */
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/* Convenience function:
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Computes the current installation prefix, based on the original
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installation prefix, the original installation directory of a particular
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file, and the current pathname of this file. Returns NULL upon failure. */
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extern const char * compute_curr_prefix (const char *orig_installprefix,
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const char *orig_installdir,
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const char *curr_pathname);
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#else
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/* By default, we use the hardwired pathnames. */
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#define relocate(pathname) (pathname)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _RELOCATABLE_H */
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