my_global.h

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#ifdef UNDEF_HAVE_INITGROUPS			/* For AIX 4.3 */
#undef HAVE_INITGROUPS
#endif

/* gcc/egcs issues */

#if defined(__GNUC) && defined(__EXCEPTIONS)
#error "Please add -fno-exceptions to CXXFLAGS and reconfigure/recompile"
#endif


/* Fix a bug in gcc 2.8.0 on IRIX 6.2 */
#if SIZEOF_LONG == 4 && defined(__LONG_MAX__) && (__GNUC__ == 2 && __GNUC_MINOR__ == 8)
#undef __LONG_MAX__             /* Is a longlong value in gcc 2.8.0 ??? */
#define __LONG_MAX__ 2147483647
#endif

/* egcs 1.1.2 has a problem with memcpy on Alpha */
#if defined(__GNUC__) && defined(__alpha__) && ! (__GNUC__ > 2 || (__GNUC__ == 2 &&  __GNUC_MINOR__ >= 95))
#define BAD_MEMCPY
#endif

#if defined(_lint) && !defined(lint)
#define lint
#endif
#if SIZEOF_LONG_LONG > 4 && !defined(_LONG_LONG)
#define _LONG_LONG 1		/* For AIX string library */
#endif

#ifndef stdin
#include <stdio.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif

#include <math.h>
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifdef HAVE_FLOAT_H
#include <float.h>
#endif

#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_SYS_TIMEB_H
#include <sys/timeb.h>				/* Avoid warnings on SCO */
#endif
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif /* TIME_WITH_SYS_TIME */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#if defined(__cplusplus) && defined(NO_CPLUSPLUS_ALLOCA)
#undef HAVE_ALLOCA
#undef HAVE_ALLOCA_H
#endif
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#endif

#include <errno.h>				/* Recommended by debian */
/* We need the following to go around a problem with openssl on solaris */
#if defined(HAVE_CRYPT_H)
#include <crypt.h>
#endif

/*
  A lot of our programs uses asserts, so better to always include it
  This also fixes a problem when people uses DBUG_ASSERT without including
  assert.h
*/
#include <assert.h>

/* an assert that works at compile-time. only for constant expression */
#ifndef __GNUC__
#define compile_time_assert(X)  do { } while(0)
#else
#define compile_time_assert(X)                                  \
  do                                                            \
  {                                                             \
    char compile_time_assert[(X) ? 1 : -1]                      \
                             __attribute__ ((unused));          \
  } while(0)
#endif

/* Go around some bugs in different OS and compilers */
#if defined (HPUX11) && defined(_LARGEFILE_SOURCE)
#define _LARGEFILE64_SOURCE
#endif
#if defined(_HPUX_SOURCE) && defined(HAVE_SYS_STREAM_H)
#include <sys/stream.h>		/* HPUX 10.20 defines ulong here. UGLY !!! */
#define HAVE_ULONG
#endif
#ifdef DONT_USE_FINITE		/* HPUX 11.x has is_finite() */
#undef HAVE_FINITE
#endif
#if defined(HPUX10) && defined(_LARGEFILE64_SOURCE) && defined(THREAD)
/* Fix bug in setrlimit */
#undef setrlimit
#define setrlimit cma_setrlimit64
#endif
/* Declare madvise where it is not declared for C++, like Solaris */
#if HAVE_MADVISE && !HAVE_DECL_MADVISE && defined(__cplusplus)
extern "C" int madvise(void *addr, size_t len, int behav);
#endif

#ifdef __QNXNTO__
/* This has to be after include limits.h */
#define HAVE_ERRNO_AS_DEFINE
#define HAVE_FCNTL_LOCK
#undef  HAVE_FINITE
#undef  LONGLONG_MIN            /* These get wrongly defined in QNX 6.2 */
#undef  LONGLONG_MAX            /* standard system library 'limits.h' */
#ifdef __cplusplus
#ifndef HAVE_RINT
#define HAVE_RINT
#endif                          /* rint() and isnan() functions are not */
#define rint(a) std::rint(a)    /* visible in C++ scope due to an error */
#define isnan(a) std::isnan(a)  /* in the usr/include/math.h on QNX     */
#endif
#endif

/* We can not live without the following defines */

#define USE_MYFUNC 1		/* Must use syscall indirection */
#define MASTER 1		/* Compile without unireg */
#define ENGLISH 1		/* Messages in English */
#define POSIX_MISTAKE 1		/* regexp: Fix stupid spec error */
#define USE_REGEX 1		/* We want the use the regex library */
/* Do not define for ultra sparcs */
#define USE_BMOVE512 1		/* Use this unless system bmove is faster */

#define QUOTE_ARG(x)		#x	/* Quote argument (before cpp) */
#define STRINGIFY_ARG(x) QUOTE_ARG(x)	/* Quote argument, after cpp */

/* Paranoid settings. Define I_AM_PARANOID if you are paranoid */
#ifdef I_AM_PARANOID
#define DONT_ALLOW_USER_CHANGE 1
#define DONT_USE_MYSQL_PWD 1
#endif

/* Does the system remember a signal handler after a signal ? */
#ifndef HAVE_BSD_SIGNALS
#define DONT_REMEMBER_SIGNAL
#endif

/* Define void to stop lint from generating "null effekt" comments */
#ifndef DONT_DEFINE_VOID
#ifdef _lint
int	__void__;
#define VOID(X)		(__void__ = (int) (X))
#else
#undef VOID
#define VOID(X)		(X)
#endif
#endif /* DONT_DEFINE_VOID */

#if defined(_lint) || defined(FORCE_INIT_OF_VARS)
#define LINT_INIT(var)	var=0			/* No uninitialize-warning */
#else
#define LINT_INIT(var)
#endif

#if defined(_lint) || defined(FORCE_INIT_OF_VARS) || defined(HAVE_purify)
#define PURIFY_OR_LINT_INIT(var) var=0
#else
#define PURIFY_OR_LINT_INIT(var)
#endif

/* Define some useful general macros */
#if !defined(max)
#define max(a, b)	((a) > (b) ? (a) : (b))
#define min(a, b)	((a) < (b) ? (a) : (b))
#endif

#if !defined(HAVE_UINT)
#undef HAVE_UINT
#define HAVE_UINT
typedef unsigned int uint;
typedef unsigned short ushort;
#endif

#define CMP_NUM(a,b)    (((a) < (b)) ? -1 : ((a) == (b)) ? 0 : 1)
#define sgn(a)		(((a) < 0) ? -1 : ((a) > 0) ? 1 : 0)
#define swap_variables(t, a, b) { register t dummy; dummy= a; a= b; b= dummy; }
#define test(a)		((a) ? 1 : 0)
#define set_if_bigger(a,b)  do { if ((a) < (b)) (a)=(b); } while(0)
#define set_if_smaller(a,b) do { if ((a) > (b)) (a)=(b); } while(0)
#define test_all_bits(a,b) (((a) & (b)) == (b))
#define set_bits(type, bit_count) (sizeof(type)*8 <= (bit_count) ? ~(type) 0 : ((((type) 1) << (bit_count)) - (type) 1))
#define array_elements(A) ((uint) (sizeof(A)/sizeof(A[0])))
#ifndef HAVE_RINT
#define rint(A) floor((A)+(((A) < 0)? -0.5 : 0.5))
#endif

/* Define some general constants */
#ifndef TRUE
#define TRUE		(1)	/* Logical true */
#define FALSE		(0)	/* Logical false */
#endif

#if defined(__GNUC__)
#define function_volatile	volatile
#define my_reinterpret_cast(A) reinterpret_cast<A>
#define my_const_cast(A) const_cast<A>
# ifndef GCC_VERSION
#  define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
# endif
#elif !defined(my_reinterpret_cast)
#define my_reinterpret_cast(A) (A)
#define my_const_cast(A) (A)
#endif

#include <my_attribute.h>

/*
  Wen using the embedded library, users might run into link problems,
  duplicate declaration of __cxa_pure_virtual, solved by declaring it a
  weak symbol.
*/
#if defined(USE_MYSYS_NEW) && ! defined(DONT_DECLARE_CXA_PURE_VIRTUAL)
C_MODE_START
int __cxa_pure_virtual () __attribute__ ((weak));
C_MODE_END
#endif

/* From old s-system.h */

/*
  Support macros for non ansi & other old compilers. Since such
  things are no longer supported we do nothing. We keep then since
  some of our code may still be needed to upgrade old customers.
*/
#define _VARARGS(X) X
#define _STATIC_VARARGS(X) X
#define _PC(X)	X

/* The DBUG_ON flag always takes precedence over default DBUG_OFF */
#if defined(DBUG_ON) && defined(DBUG_OFF)
#undef DBUG_OFF
#endif

/* We might be forced to turn debug off, if not turned off already */
#if (defined(FORCE_DBUG_OFF) || defined(_lint)) && !defined(DBUG_OFF)
#  define DBUG_OFF
#  ifdef DBUG_ON
#    undef DBUG_ON
#  endif
#endif

#include <my_dbug.h>

#define MIN_ARRAY_SIZE	0	/* Zero or One. Gcc allows zero*/
#define ASCII_BITS_USED 8	/* Bit char used */
#define NEAR_F			/* No near function handling */

/* Some types that is different between systems */

typedef int	File;		/* File descriptor */
#ifndef Socket_defined
typedef int	my_socket;	/* File descriptor for sockets */
#define INVALID_SOCKET -1
#endif
/* Type for fuctions that handles signals */
#define sig_handler RETSIGTYPE
C_MODE_START
typedef void	(*sig_return)();/* Returns type from signal */
C_MODE_END
#if defined(__GNUC__) && !defined(_lint)
typedef char	pchar;		/* Mixed prototypes can take char */
typedef char	puchar;		/* Mixed prototypes can take char */
typedef char	pbool;		/* Mixed prototypes can take char */
typedef short	pshort;		/* Mixed prototypes can take short int */
typedef float	pfloat;		/* Mixed prototypes can take float */
#else
typedef int	pchar;		/* Mixed prototypes can't take char */
typedef uint	puchar;		/* Mixed prototypes can't take char */
typedef int	pbool;		/* Mixed prototypes can't take char */
typedef int	pshort;		/* Mixed prototypes can't take short int */
typedef double	pfloat;		/* Mixed prototypes can't take float */
#endif
C_MODE_START
typedef int	(*qsort_cmp)(const void *,const void *);
typedef int	(*qsort_cmp2)(void*, const void *,const void *);
C_MODE_END
#define qsort_t RETQSORTTYPE	/* Broken GCC cant handle typedef !!!! */
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
typedef SOCKET_SIZE_TYPE size_socket;

#ifndef SOCKOPT_OPTLEN_TYPE
#define SOCKOPT_OPTLEN_TYPE size_socket
#endif

/* file create flags */

#ifndef O_SHARE			/* Probably not windows */
#define O_SHARE		0	/* Flag to my_open for shared files */
#ifndef O_BINARY
#define O_BINARY	0	/* Flag to my_open for binary files */
#endif
#ifndef FILE_BINARY
#define FILE_BINARY	O_BINARY /* Flag to my_fopen for binary streams */
#endif
#ifdef HAVE_FCNTL
#define HAVE_FCNTL_LOCK
#define F_TO_EOF	0L	/* Param to lockf() to lock rest of file */
#endif
#endif /* O_SHARE */

#ifndef O_TEMPORARY
#define O_TEMPORARY	0
#endif
#ifndef O_SHORT_LIVED
#define O_SHORT_LIVED	0
#endif
#ifndef O_NOFOLLOW
#define O_NOFOLLOW      0
#endif

/* additional file share flags for win32 */
#ifdef __WIN__
#define _SH_DENYRWD     0x110    /* deny read/write mode & delete */
#define _SH_DENYWRD     0x120    /* deny write mode & delete      */
#define _SH_DENYRDD     0x130    /* deny read mode & delete       */
#define _SH_DENYDEL     0x140    /* deny delete only              */
#endif /* __WIN__ */


/* #define USE_RECORD_LOCK	*/

	/* Unsigned types supported by the compiler */
#define UNSINT8			/* unsigned int8 (char) */
#define UNSINT16		/* unsigned int16 */
#define UNSINT32		/* unsigned int32 */

	/* General constants */
#define SC_MAXWIDTH	256	/* Max width of screen (for error messages) */
#define FN_LEN		256	/* Max file name len */
#define FN_HEADLEN	253	/* Max length of filepart of file name */
#define FN_EXTLEN	20	/* Max length of extension (part of FN_LEN) */
#define FN_REFLEN	512	/* Max length of full path-name */
#define FN_EXTCHAR	'.'
#define FN_HOMELIB	'~'	/* ~/ is used as abbrev for home dir */
#define FN_CURLIB	'.'	/* ./ is used as abbrev for current dir */
#define FN_PARENTDIR	".."	/* Parent directory; Must be a string */

#ifndef FN_LIBCHAR
#define FN_LIBCHAR	'/'
#define FN_ROOTDIR	"/"
#endif
#define MY_NFILE	64	/* This is only used to save filenames */
#ifndef OS_FILE_LIMIT
#define OS_FILE_LIMIT	65535
#endif

/* #define EXT_IN_LIBNAME     */
/* #define FN_NO_CASE_SENCE   */
/* #define FN_UPPER_CASE TRUE */