/usr/include/allegro5/internal/alconfig.h is in liballegro5-dev 2:5.0.10-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* /\ _ \ /\_ \ /\_ \
* \ \ \L\ \\//\ \ \//\ \ __ __ _ __ ___
* \ \ __ \ \ \ \ \ \ \ /'__`\ /'_ `\/\`'__\/ __`\
* \ \ \/\ \ \_\ \_ \_\ \_/\ __//\ \L\ \ \ \//\ \L\ \
* \ \_\ \_\/\____\/\____\ \____\ \____ \ \_\\ \____/
* \/_/\/_/\/____/\/____/\/____/\/___L\ \/_/ \/___/
* /\____/
* \_/__/
*
* Configuration defines.
*
* By Shawn Hargreaves.
*
* See readme.txt for copyright information.
*/
/* for backward compatibility */
#ifdef USE_CONSOLE
#define ALLEGRO_NO_MAGIC_MAIN
#define ALLEGRO_USE_CONSOLE
#endif
/* include platform-specific stuff */
#include "allegro5/platform/alplatf.h"
#if defined ALLEGRO_WATCOM
#include "allegro5/platform/alwatcom.h"
#elif defined ALLEGRO_MINGW32
#include "allegro5/platform/almngw32.h"
#elif defined ALLEGRO_BCC32
#include "allegro5/platform/albcc32.h"
#elif defined ALLEGRO_MSVC
#include "allegro5/platform/almsvc.h"
#elif defined ALLEGRO_IPHONE
#include "allegro5/platform/aliphonecfg.h"
#elif defined ALLEGRO_MACOSX
#include "allegro5/platform/alosxcfg.h"
#elif defined ALLEGRO_UNIX
#include "allegro5/platform/alucfg.h"
#else
#error platform not supported
#endif
#include "allegro5/platform/astdint.h"
#include "allegro5/platform/astdbool.h"
/* special definitions for the GCC compiler */
#ifdef __GNUC__
#define ALLEGRO_GCC
#ifndef AL_INLINE
#ifdef __cplusplus
#define AL_INLINE(type, name, args, code) \
static inline type name args; \
static inline type name args code
/* Needed if this header is included by C99 code, as
* "extern __inline__" in C99 exports a new global function.
*/
#elif __GNUC_STDC_INLINE__
#define AL_INLINE(type, name, args, code) \
extern __inline__ __attribute__((__gnu_inline__)) type name args; \
extern __inline__ __attribute__((__gnu_inline__)) type name args code
#else
#define AL_INLINE(type, name, args, code) \
extern __inline__ type name args; \
extern __inline__ type name args code
#endif
#endif
#ifndef AL_INLINE_STATIC
#ifdef __cplusplus
#define AL_INLINE_STATIC(type, name, args, code) \
AL_INLINE(type, name, args, code)
#else
#define AL_INLINE_STATIC(type, name, args, code) \
static __inline__ type name args; \
static __inline__ type name args code
#endif
#endif
#define AL_PRINTFUNC(type, name, args, a, b) AL_FUNC(type, name, args) __attribute__ ((format (printf, a, b)))
#ifndef INLINE
#define INLINE __inline__
#endif
#ifndef ZERO_SIZE_ARRAY
#if __GNUC__ < 3
#define ZERO_SIZE_ARRAY(type, name) __extension__ type name[0]
#else
#define ZERO_SIZE_ARRAY(type, name) type name[] /* ISO C99 flexible array members */
#endif
#endif
#ifndef LONG_LONG
#define LONG_LONG long long
#ifdef ALLEGRO_GUESS_INTTYPES_OK
#define int64_t signed long long
#define uint64_t unsigned long long
#endif
#endif
#ifdef __i386__
#define ALLEGRO_I386
#endif
#ifdef __amd64__
#define ALLEGRO_AMD64
#endif
#ifdef __arm__
#define ALLEGRO_ARM
#endif
#ifndef AL_FUNC_DEPRECATED
#if (__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1))
#define AL_FUNC_DEPRECATED(type, name, args) AL_FUNC(__attribute__ ((deprecated)) type, name, args)
#define AL_PRINTFUNC_DEPRECATED(type, name, args, a, b) AL_PRINTFUNC(__attribute__ ((deprecated)) type, name, args, a, b)
#define AL_INLINE_DEPRECATED(type, name, args, code) AL_INLINE(__attribute__ ((deprecated)) type, name, args, code)
#endif
#endif
#ifndef AL_ALIAS
#define AL_ALIAS(DECL, CALL) \
static __attribute__((unused)) __inline__ DECL \
{ \
return CALL; \
}
#endif
#ifndef AL_ALIAS_VOID_RET
#define AL_ALIAS_VOID_RET(DECL, CALL) \
static __attribute__((unused)) __inline__ void DECL \
{ \
CALL; \
}
#endif
#endif
/* the rest of this file fills in some default definitions of language
* features and helper functions, which are conditionalised so they will
* only be included if none of the above headers defined custom versions.
*/
#ifndef INLINE
#define INLINE
#endif
#ifndef ZERO_SIZE_ARRAY
#define ZERO_SIZE_ARRAY(type, name) type name[]
#endif
#ifndef AL_VAR
#define AL_VAR(type, name) extern type name
#endif
#ifndef AL_ARRAY
#define AL_ARRAY(type, name) extern type name[]
#endif
#ifndef AL_FUNC
#define AL_FUNC(type, name, args) type name args
#endif
#ifndef AL_PRINTFUNC
#define AL_PRINTFUNC(type, name, args, a, b) AL_FUNC(type, name, args)
#endif
#ifndef AL_METHOD
#define AL_METHOD(type, name, args) type (*name) args
#endif
#ifndef AL_FUNCPTR
#define AL_FUNCPTR(type, name, args) extern type (*name) args
#endif
#ifndef AL_FUNCPTRARRAY
#define AL_FUNCPTRARRAY(type, name, args) extern type (*name[]) args
#endif
#ifndef AL_INLINE
#define AL_INLINE(type, name, args, code) type name args;
#endif
#ifndef AL_FUNC_DEPRECATED
#define AL_FUNC_DEPRECATED(type, name, args) AL_FUNC(type, name, args)
#define AL_PRINTFUNC_DEPRECATED(type, name, args, a, b) AL_PRINTFUNC(type, name, args, a, b)
#define AL_INLINE_DEPRECATED(type, name, args, code) AL_INLINE(type, name, args, code)
#endif
#ifndef AL_ALIAS
#define AL_ALIAS(DECL, CALL) \
static INLINE DECL \
{ \
return CALL; \
}
#endif
#ifndef AL_ALIAS_VOID_RET
#define AL_ALIAS_VOID_RET(DECL, CALL) \
static INLINE void DECL \
{ \
CALL; \
}
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* endian-independent 3-byte accessor macros */
#ifdef ALLEGRO_LITTLE_ENDIAN
#define READ3BYTES(p) ((*(unsigned char *)(p)) \
| (*((unsigned char *)(p) + 1) << 8) \
| (*((unsigned char *)(p) + 2) << 16))
#define WRITE3BYTES(p,c) ((*(unsigned char *)(p) = (c)), \
(*((unsigned char *)(p) + 1) = (c) >> 8), \
(*((unsigned char *)(p) + 2) = (c) >> 16))
#elif defined ALLEGRO_BIG_ENDIAN
#define READ3BYTES(p) ((*(unsigned char *)(p) << 16) \
| (*((unsigned char *)(p) + 1) << 8) \
| (*((unsigned char *)(p) + 2)))
#define WRITE3BYTES(p,c) ((*(unsigned char *)(p) = (c) >> 16), \
(*((unsigned char *)(p) + 1) = (c) >> 8), \
(*((unsigned char *)(p) + 2) = (c)))
#else
#error endianess not defined
#endif
/* generic versions of the video memory access helpers */
/* FIXME: why do we need macros for this? */
#define bmp_write16(addr, c) (*((uint16_t *)(addr)) = (c))
#define bmp_write32(addr, c) (*((uint32_t *)(addr)) = (c))
#define bmp_read16(addr) (*((uint16_t *)(addr)))
#define bmp_read32(addr) (*((uint32_t *)(addr)))
/* default random function definition */
#ifndef AL_RAND
#define AL_RAND() (rand())
#endif
#ifdef __cplusplus
}
#endif
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