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67 lines
2.1 KiB
67 lines
2.1 KiB
15 years ago
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/* $Id: defines.h 6124 2003-01-14 06:03:29Z rra $
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**
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** Portable defines used by other INN header files.
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**
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** In order to make the libraries built by INN usable by other software,
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** INN needs to install several header files. Installing autoconf-
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** generated header files, however, is a bad idea, since the defines will
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** conflict with other software that uses autoconf.
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**
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** This header contains common definitions, such as internal typedefs and
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** macros, common to INN's header files but not based on autoconf probes.
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** As such, it's limited in what it can do; if compiling software against
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** INN's header files on a system not supporting basic ANSI C features
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** (such as const) or standard types (like size_t), the software may need
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** to duplicate the tests that INN itself performs, generate a config.h,
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** and make sure that config.h is included before any INN header files.
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*/
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#ifndef INN_DEFINES_H
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#define INN_DEFINES_H 1
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#include <inn/system.h>
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/* BEGIN_DECLS is used at the beginning of declarations so that C++
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compilers don't mangle their names. END_DECLS is used at the end. */
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#undef BEGIN_DECLS
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#undef END_DECLS
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#ifdef __cplusplus
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# define BEGIN_DECLS extern "C" {
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# define END_DECLS }
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#else
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# define BEGIN_DECLS /* empty */
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# define END_DECLS /* empty */
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#endif
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/* __attribute__ is available in gcc 2.5 and later, but only with gcc 2.7
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could you use the __format__ form of the attributes, which is what we use
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(to avoid confusion with other macros). */
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#ifndef __attribute__
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# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
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# define __attribute__(spec) /* empty */
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# endif
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#endif
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/* Used for unused parameters to silence gcc warnings. */
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#define UNUSED __attribute__((__unused__))
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/* Make available the bool type. */
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#if INN_HAVE_STDBOOL_H
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# include <stdbool.h>
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#else
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# undef true
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# undef false
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# define true (1)
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# define false (0)
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# ifndef __cplusplus
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# define bool int
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# endif
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#endif /* INN_HAVE_STDBOOL_H */
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/* Tell Perl that we have a bool type. */
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#ifndef HAS_BOOL
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# define HAS_BOOL 1
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#endif
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#endif /* !INN_DEFINES_H */
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