~drizzle-trunk/drizzle/development

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
# Local macros for automake & autoconf

#---START: Used in for client configure
AC_DEFUN([MYSQL_TYPE_ACCEPT],
[ac_save_CXXFLAGS="$CXXFLAGS"
AC_CACHE_CHECK([base type of last arg to accept], mysql_cv_btype_last_arg_accept,
AC_LANG_PUSH(C++)
if test "$ac_cv_prog_gxx" = "yes"
then
  # Add -Werror, remove -fbranch-probabilities (Bug #268)
  CXXFLAGS=`echo "$CXXFLAGS -Werror" | sed -e 's/-fbranch-probabilities//; s/-Wall//; s/-Wcheck//'`
fi
mysql_cv_btype_last_arg_accept=none
[AC_TRY_COMPILE([#if defined(inline)
#undef inline
#endif
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
],
[int a = accept(1, (struct sockaddr *) 0, (socklen_t *) 0); return (a != 0);],
mysql_cv_btype_last_arg_accept=socklen_t)]
if test "$mysql_cv_btype_last_arg_accept" = "none"; then
[AC_TRY_COMPILE([#if defined(inline)
#undef inline
#endif
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
],
[int a = accept(1, (struct sockaddr *) 0, (size_t *) 0); return (a != 0);],
mysql_cv_btype_last_arg_accept=size_t)]
fi
if test "$mysql_cv_btype_last_arg_accept" = "none"; then
mysql_cv_btype_last_arg_accept=int
fi)
AC_LANG_POP(C++)
AC_DEFINE_UNQUOTED([SOCKET_SIZE_TYPE], [$mysql_cv_btype_last_arg_accept],
                   [The base type of the last arg to accept])
CXXFLAGS="$ac_save_CXXFLAGS"
])
#---END:

dnl Find type of qsort
AC_DEFUN([MYSQL_TYPE_QSORT],
[AC_CACHE_CHECK([return type of qsort], mysql_cv_type_qsort,
[AC_TRY_COMPILE([#include <stdlib.h>
#ifdef __cplusplus
extern "C"
#endif
void qsort(void *base, size_t nel, size_t width,
 int (*compar) (const void *, const void *));
],
[int i;], mysql_cv_type_qsort=void, mysql_cv_type_qsort=int)])
AC_DEFINE_UNQUOTED([RETQSORTTYPE], [$mysql_cv_type_qsort],
                   [The return type of qsort (int or void).])
if test "$mysql_cv_type_qsort" = "void"
then
 AC_DEFINE_UNQUOTED([QSORT_TYPE_IS_VOID], [1], [qsort returns void])
fi
])

#---START: Figure out whether to use 'struct rlimit' or 'struct rlimit64'
AC_DEFUN([MYSQL_TYPE_STRUCT_RLIMIT],
[ac_save_CXXFLAGS="$CXXFLAGS"
AC_CACHE_CHECK([struct type to use with setrlimit], mysql_cv_btype_struct_rlimit,
AC_LANG_PUSH(C++)
if test "$ac_cv_prog_gxx" = "yes"
then
  # Add -Werror, remove -fbranch-probabilities (Bug #268)
  CXXFLAGS=`echo "$CXXFLAGS -Werror" | sed -e 's/-fbranch-probabilities//; s/-Wall//; s/-Wcheck//'`
fi
mysql_cv_btype_struct_rlimit=none
[AC_TRY_COMPILE([#if defined(inline)
#undef inline
#endif
#include <stdlib.h>
#include <sys/resource.h>
],
[struct rlimit64 rl; setrlimit(RLIMIT_CORE, &rl);],
mysql_cv_btype_struct_rlimit="struct rlimit64")]
if test "$mysql_cv_btype_struct_rlimit" = "none"; then
mysql_cv_btype_struct_rlimit="struct rlimit"
fi)
AC_LANG_POP(C++)
AC_DEFINE_UNQUOTED([STRUCT_RLIMIT], [$mysql_cv_btype_struct_rlimit],
                   [The struct rlimit type to use with setrlimit])
CXXFLAGS="$ac_save_CXXFLAGS"
])
#---END:

AC_DEFUN([DRIZZLE_TIMESPEC_TS],
[AC_CACHE_CHECK([if struct timespec has a ts_sec member], mysql_cv_timespec_ts,
[AC_TRY_COMPILE([#include <pthread.h>
#ifdef __cplusplus
extern "C"
#endif
],
[struct timespec abstime;

abstime.ts_sec = time(NULL)+1;
abstime.ts_nsec = 0;
], mysql_cv_timespec_ts=yes, mysql_cv_timespec_ts=no)])
if test "$mysql_cv_timespec_ts" = "yes"
then
  AC_DEFINE([HAVE_TIMESPEC_TS_SEC], [1],
            [Timespec has a ts_sec instead of tv_sev])
fi
])

AC_DEFUN([MYSQL_TZNAME],
[AC_CACHE_CHECK([if we have tzname variable], mysql_cv_tzname,
[AC_TRY_COMPILE([#include <time.h>
#ifdef __cplusplus
extern "C"
#endif
],
[ tzset();
  return tzname[0] != 0;
], mysql_cv_tzname=yes, mysql_cv_tzname=no)])
if test "$mysql_cv_tzname" = "yes"
then
  AC_DEFINE([HAVE_TZNAME], [1], [Have the tzname variable])
fi
])


AC_DEFUN([MYSQL_PTHREAD_YIELD],[
# Some OSes like Mac OS X have that as a replacement for pthread_yield()
AC_CHECK_FUNCS(pthread_yield_np, AC_DEFINE([HAVE_PTHREAD_YIELD_NP],[],[Define if you have pthread_yield_np]))
AC_CACHE_CHECK([if pthread_yield takes zero arguments], ac_cv_pthread_yield_zero_arg,
[AC_TRY_LINK([#define _GNU_SOURCE
#include <pthread.h>
#ifdef __cplusplus
extern "C"
#endif
],
[
  pthread_yield();
], ac_cv_pthread_yield_zero_arg=yes, ac_cv_pthread_yield_zero_arg=yeso)])
if test "$ac_cv_pthread_yield_zero_arg" = "yes"
then
  AC_DEFINE([HAVE_PTHREAD_YIELD_ZERO_ARG], [1],
            [pthread_yield that doesn't take any arguments])
fi
AC_CACHE_CHECK([if pthread_yield takes 1 argument], ac_cv_pthread_yield_one_arg,
[AC_TRY_LINK([#define _GNU_SOURCE
#include <pthread.h>
#ifdef __cplusplus
extern "C"
#endif
],
[
  pthread_yield(0);
], ac_cv_pthread_yield_one_arg=yes, ac_cv_pthread_yield_one_arg=no)])
if test "$ac_cv_pthread_yield_one_arg" = "yes"
then
  AC_DEFINE([HAVE_PTHREAD_YIELD_ONE_ARG], [1],
            [pthread_yield function with one argument])
fi
]
)

#---END:

# From fileutils-3.14/aclocal.m4

# @defmac AC_PROG_CC_STDC
# @maindex PROG_CC_STDC
# @ovindex CC
# If the C compiler in not in ANSI C mode by default, try to add an option
# to output variable @code{CC} to make it so.  This macro tries various
# options that select ANSI C on some system or another.  It considers the
# compiler to be in ANSI C mode if it defines @code{__STDC__} to 1 and
# handles function prototypes correctly.
#
# Patched by monty to only check if __STDC__ is defined. With the original 
# check it's impossible to get things to work with the Sunpro compiler from
# Workshop 4.2
#
# If you use this macro, you should check after calling it whether the C
# compiler has been set to accept ANSI C; if not, the shell variable
# @code{am_cv_prog_cc_stdc} is set to @samp{no}.  If you wrote your source
# code in ANSI C, you can make an un-ANSIfied copy of it by using the
# program @code{ansi2knr}, which comes with Ghostscript.
# @end defmac

AC_DEFUN([AM_PROG_CC_STDC],
[AC_REQUIRE([AC_PROG_CC])
AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
AC_CACHE_VAL(am_cv_prog_cc_stdc,
[am_cv_prog_cc_stdc=no
ac_save_CC="$CC"
# Don't try gcc -ansi; that turns off useful extensions and
# breaks some systems' header files.
# AIX			-qlanglvl=ansi
# Ultrix and OSF/1	-std1
# HP-UX			-Aa -D_HPUX_SOURCE
# SVR4			-Xc -D__EXTENSIONS__
# removed "-Xc -D__EXTENSIONS__" beacause sun c++ does not like it.
for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" 
do
  CC="$ac_save_CC $ac_arg"
  AC_TRY_COMPILE(
[#if !defined(__STDC__)
choke me
#endif
/* DYNIX/ptx V4.1.3 can't compile sys/stat.h with -Xc -D__EXTENSIONS__. */
#ifdef _SEQUENT_
# include <sys/types.h>
# include <sys/stat.h>
#endif
], [
int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};],
[am_cv_prog_cc_stdc="$ac_arg"; break])
done
CC="$ac_save_CC"
])
AC_MSG_RESULT($am_cv_prog_cc_stdc)
case "x$am_cv_prog_cc_stdc" in
  x|xno) ;;
  *) CC="$CC $am_cv_prog_cc_stdc" ;;
esac
])

# Orginal from bash-2.0 aclocal.m4, Changed to use termcap last by monty.
 
AC_DEFUN([MYSQL_CHECK_LIB_TERMCAP],
[
AC_CACHE_VAL(mysql_cv_termcap_lib,
[AC_CHECK_LIB(ncurses, tgetent, mysql_cv_termcap_lib=libncurses,
    [AC_CHECK_LIB(curses, tgetent, mysql_cv_termcap_lib=libcurses,
	[AC_CHECK_LIB(termcap, tgetent, mysql_cv_termcap_lib=libtermcap,
          [AC_CHECK_LIB(tinfo, tgetent, mysql_cv_termcap_lib=libtinfo,
	    mysql_cv_termcap_lib=NOT_FOUND)])])])])
AC_MSG_CHECKING(for termcap functions library)
if test "$mysql_cv_termcap_lib" = "NOT_FOUND"; then
AC_MSG_ERROR([No curses/termcap library found])
elif test "$mysql_cv_termcap_lib" = "libtermcap"; then
TERMCAP_LIB=-ltermcap
elif test "$mysql_cv_termcap_lib" = "libncurses"; then
TERMCAP_LIB=-lncurses
elif test "$mysql_cv_termcap_lib" = "libtinfo"; then
TERMCAP_LIB=-ltinfo
else
TERMCAP_LIB=-lcurses
fi
AC_MSG_RESULT($TERMCAP_LIB)
])

dnl Check type of signal routines (posix, 4.2bsd, 4.1bsd or v7)
AC_DEFUN([MYSQL_SIGNAL_CHECK],
[AC_REQUIRE([AC_TYPE_SIGNAL])
AC_MSG_CHECKING(for type of signal functions)
AC_CACHE_VAL(mysql_cv_signal_vintage,
[
  AC_TRY_LINK([#include <signal.h>],[
    sigset_t ss;
    struct sigaction sa;
    sigemptyset(&ss); sigsuspend(&ss);
    sigaction(SIGINT, &sa, (struct sigaction *) 0);
    sigprocmask(SIG_BLOCK, &ss, (sigset_t *) 0);
  ], mysql_cv_signal_vintage=posix,
  [
    AC_TRY_LINK([#include <signal.h>], [
	int mask = sigmask(SIGINT);
	sigsetmask(mask); sigblock(mask); sigpause(mask);
    ], mysql_cv_signal_vintage=4.2bsd,
    [
      AC_TRY_LINK([
	#include <signal.h>
	RETSIGTYPE foo() { }], [
		int mask = sigmask(SIGINT);
		sigset(SIGINT, foo); sigrelse(SIGINT);
		sighold(SIGINT); sigpause(SIGINT);
        ], mysql_cv_signal_vintage=svr3, mysql_cv_signal_vintage=v7
    )]
  )]
)
])
AC_MSG_RESULT($mysql_cv_signal_vintage)
if test "$mysql_cv_signal_vintage" = posix; then
AC_DEFINE(HAVE_POSIX_SIGNALS, [1],
          [Signal handling is POSIX (sigset/sighold, etc)])
elif test "$mysql_cv_signal_vintage" = "4.2bsd"; then
AC_DEFINE([HAVE_BSD_SIGNALS], [1], [BSD style signals])
elif test "$mysql_cv_signal_vintage" = svr3; then
AC_DEFINE(HAVE_USG_SIGHOLD, [1], [sighold() is present and usable])
fi
])

AC_DEFUN([MYSQL_CHECK_GETPW_FUNCS],
[AC_MSG_CHECKING(whether programs are able to redeclare getpw functions)
AC_CACHE_VAL(mysql_cv_can_redecl_getpw,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <pwd.h>
extern struct passwd *getpwent();], [struct passwd *z; z = getpwent();],
  mysql_cv_can_redecl_getpw=yes,mysql_cv_can_redecl_getpw=no)])
AC_MSG_RESULT($mysql_cv_can_redecl_getpw)
if test "$mysql_cv_can_redecl_getpw" = "no"; then
AC_DEFINE(HAVE_GETPW_DECLS, [1], [getpwent() declaration present])
fi
])

AC_DEFUN([MYSQL_HAVE_TIOCGWINSZ],
[AC_MSG_CHECKING(for TIOCGWINSZ in sys/ioctl.h)
AC_CACHE_VAL(mysql_cv_tiocgwinsz_in_ioctl,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/ioctl.h>], [int x = TIOCGWINSZ;],
  mysql_cv_tiocgwinsz_in_ioctl=yes,mysql_cv_tiocgwinsz_in_ioctl=no)])
AC_MSG_RESULT($mysql_cv_tiocgwinsz_in_ioctl)
if test "$mysql_cv_tiocgwinsz_in_ioctl" = "yes"; then   
AC_DEFINE([GWINSZ_IN_SYS_IOCTL], [1],
          [READLINE: your system defines TIOCGWINSZ in sys/ioctl.h.])
fi
])

AC_DEFUN([MYSQL_HAVE_FIONREAD],
[AC_MSG_CHECKING(for FIONREAD in sys/ioctl.h)
AC_CACHE_VAL(mysql_cv_fionread_in_ioctl,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/ioctl.h>], [int x = FIONREAD;],
  mysql_cv_fionread_in_ioctl=yes,mysql_cv_fionread_in_ioctl=no)])
AC_MSG_RESULT($mysql_cv_fionread_in_ioctl)
if test "$mysql_cv_fionread_in_ioctl" = "yes"; then   
AC_DEFINE([FIONREAD_IN_SYS_IOCTL], [1], [Do we have FIONREAD])
fi
])

AC_DEFUN([MYSQL_HAVE_TIOCSTAT],
[AC_MSG_CHECKING(for TIOCSTAT in sys/ioctl.h)
AC_CACHE_VAL(mysql_cv_tiocstat_in_ioctl,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/ioctl.h>], [int x = TIOCSTAT;],
  mysql_cv_tiocstat_in_ioctl=yes,mysql_cv_tiocstat_in_ioctl=no)])
AC_MSG_RESULT($mysql_cv_tiocstat_in_ioctl)
if test "$mysql_cv_tiocstat_in_ioctl" = "yes"; then   
AC_DEFINE(TIOCSTAT_IN_SYS_IOCTL, [1],
          [declaration of TIOCSTAT in sys/ioctl.h])
fi
])

AC_DEFUN([MYSQL_STRUCT_DIRENT_D_INO],
[AC_REQUIRE([AC_HEADER_DIRENT])
AC_MSG_CHECKING(if struct dirent has a d_ino member)
AC_CACHE_VAL(mysql_cv_dirent_has_dino,
[AC_TRY_COMPILE([
#include <stdio.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#if defined(HAVE_DIRENT_H)
# include <dirent.h>
#else
# define dirent direct
# ifdef HAVE_SYS_NDIR_H
#  include <sys/ndir.h>
# endif /* SYSNDIR */
# ifdef HAVE_SYS_DIR_H
#  include <sys/dir.h>
# endif /* SYSDIR */
# ifdef HAVE_NDIR_H
#  include <ndir.h>
# endif
#endif /* HAVE_DIRENT_H */
],[
struct dirent d; int z; z = d.d_ino;
], mysql_cv_dirent_has_dino=yes, mysql_cv_dirent_has_dino=no)])
AC_MSG_RESULT($mysql_cv_dirent_has_dino)
if test "$mysql_cv_dirent_has_dino" = "yes"; then
AC_DEFINE(STRUCT_DIRENT_HAS_D_INO, [1],
          [d_ino member present in struct dirent])
fi
])

AC_DEFUN([MYSQL_STRUCT_DIRENT_D_NAMLEN],
[AC_REQUIRE([AC_HEADER_DIRENT])
AC_MSG_CHECKING(if struct dirent has a d_namlen member)
AC_CACHE_VAL(mysql_cv_dirent_has_dnamlen,
[AC_TRY_COMPILE([
#include <stdio.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif /* HAVE_UNISTD_H */
#if defined(HAVE_DIRENT_H)
# include <dirent.h>
#else
# define dirent direct
# ifdef HAVE_SYS_NDIR_H
#  include <sys/ndir.h>
# endif /* SYSNDIR */
# ifdef HAVE_SYS_DIR_H
#  include <sys/dir.h>
# endif /* SYSDIR */
# ifdef HAVE_NDIR_H
#  include <ndir.h>
# endif
#endif /* HAVE_DIRENT_H */
],[
struct dirent d; int z; z = (int)d.d_namlen;
], mysql_cv_dirent_has_dnamlen=yes, mysql_cv_dirent_has_dnamlen=no)])
AC_MSG_RESULT($mysql_cv_dirent_has_dnamlen)
if test "$mysql_cv_dirent_has_dnamlen" = "yes"; then
AC_DEFINE(STRUCT_DIRENT_HAS_D_NAMLEN, [1],
          [d_namlen member present in struct dirent])
fi
])


AC_DEFUN([MYSQL_TYPE_SIGHANDLER],
[AC_MSG_CHECKING([whether signal handlers are of type void])
AC_CACHE_VAL(mysql_cv_void_sighandler,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <signal.h>
#ifdef signal
#undef signal
#endif
#ifdef __cplusplus
extern "C"
#endif
void (*signal ()) ();],
[int i;], mysql_cv_void_sighandler=yes, mysql_cv_void_sighandler=no)])dnl
AC_MSG_RESULT($mysql_cv_void_sighandler)
if test "$mysql_cv_void_sighandler" = "yes"; then
AC_DEFINE(VOID_SIGHANDLER, [1], [sighandler type is void (*signal ()) ();])
fi
])

AC_DEFUN([MYSQL_CXX_BOOL],
[
AC_REQUIRE([AC_PROG_CXX])
AC_MSG_CHECKING(if ${CXX} supports bool types)
AC_CACHE_VAL(mysql_cv_have_bool,
[
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE(,[bool b = true;],
mysql_cv_have_bool=yes,
mysql_cv_have_bool=no)
AC_LANG_RESTORE
])
AC_MSG_RESULT($mysql_cv_have_bool)
if test "$mysql_cv_have_bool" = yes; then
AC_DEFINE([HAVE_BOOL], [1], [bool is not defined by all C++ compilators])
fi
])dnl

AC_DEFUN([MYSQL_STACK_DIRECTION],
 [AC_CACHE_CHECK(stack direction for C alloca, ac_cv_c_stack_direction,
 [AC_TRY_RUN([#include <stdlib.h>
 int find_stack_direction ()
 {
   static char *addr = 0;
   auto char dummy;
   if (addr == 0)
     {
       addr = &dummy;
       return find_stack_direction ();
     }
   else
     return (&dummy > addr) ? 1 : -1;
 }
 int main ()
 {
   exit (find_stack_direction() < 0);
 }], ac_cv_c_stack_direction=1, ac_cv_c_stack_direction=-1,
   ac_cv_c_stack_direction=)])
 AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction)
])dnl

AC_DEFUN([MYSQL_CHECK_LONGLONG_TO_FLOAT],
[
AC_MSG_CHECKING(if conversion of longlong to float works)
AC_CACHE_VAL(ac_cv_conv_longlong_to_float,
[AC_TRY_RUN([#include <stdio.h>
typedef long long longlong;
int main()
{
  longlong ll=1;
  float f;
  FILE *file=fopen("conftestval", "w");
  f = (float) ll;
  fprintf(file,"%g\n",f);
  fclose(file);
  return (0);
}], ac_cv_conv_longlong_to_float=`cat conftestval`,
    ac_cv_conv_longlong_to_float=0,
    ac_cv_conv_longlong_to_float="yes")])dnl  # Cross compiling, assume can convert
if test "$ac_cv_conv_longlong_to_float" = "1" -o "$ac_cv_conv_longlong_to_float" = "yes"
then
  ac_cv_conv_longlong_to_float=yes
else
  ac_cv_conv_longlong_to_float=no
fi
AC_MSG_RESULT($ac_cv_conv_longlong_to_float)
])

AC_DEFUN([MYSQL_CHECK_VIO], [
dnl
dnl we always use vio: no need for special defines 
dnl
  AC_DEFINE([HAVE_VIO_READ_BUFF], [1],
            [Define to enable buffered read. This works only if syscalls
            read/recv return as soon as there is some data in the kernel
            buffer, no matter how big the given buffer is.])
])

# Local version of _AC_PROG_CXX_EXIT_DECLARATION that does not
# include #stdlib.h as default as this breaks things on Solaris
# (Conflicts with pthreads and big file handling)

m4_define([_AC_PROG_CXX_EXIT_DECLARATION],
[for ac_declaration in \
   ''\
   'extern "C" void std::exit (int) throw (); using std::exit;' \
   'extern "C" void std::exit (int); using std::exit;' \
   'extern "C" void exit (int) throw ();' \
   'extern "C" void exit (int);' \
   'void exit (int);' \
   '#include <stdlib.h>'
do
  _AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$ac_declaration
@%:@include <stdlib.h>],
                                      [exit (42);])],
                     [],
                     [continue])
  _AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$ac_declaration],
                                      [exit (42);])],
                     [break])
done
rm -f conftest*
if test -n "$ac_declaration"; then
  echo '#ifdef __cplusplus' >>confdefs.h
  echo $ac_declaration      >>confdefs.h
  echo '#endif'             >>confdefs.h
fi
])# _AC_PROG_CXX_EXIT_DECLARATION

dnl ---------------------------------------------------------------------------


dnl ---------------------------------------------------------------------------
dnl Macro: MYSQL_CHECK_BIG_TABLES
dnl Sets BIG_TABLES if --with-big-tables is used
dnl ---------------------------------------------------------------------------
AC_DEFUN([MYSQL_CHECK_BIG_TABLES], [
  AC_ARG_WITH([big-tables],
  AS_HELP_STRING([--with-big-tables],
              [Support tables with more than 4 G rows even on 32 bit platforms]),
              [bigtables="$withval"],
              [bigtables=no])
  AC_MSG_CHECKING([for big tables support])

  case "$bigtables" in
    yes )
      AC_DEFINE([BIG_TABLES], [1], [Support big tables])
      AC_MSG_RESULT([yes])
      ;;
    * )
      AC_MSG_RESULT([no])
      ;;
  esac

])
dnl ---------------------------------------------------------------------------
dnl END OF MYSQL_CHECK_BIG_TABLES SECTION
dnl ---------------------------------------------------------------------------


dnl ---------------------------------------------------------------------------
dnl Macro: MYSQL_CHECK_MAX_INDEXES
dnl Sets MAX_INDEXES
dnl ---------------------------------------------------------------------------
AC_DEFUN([MYSQL_CHECK_MAX_INDEXES], [
  AC_ARG_WITH([max-indexes],
              AS_HELP_STRING([--with-max-indexes=N],
                             [Sets the maximum number of indexes per table, default 64]),
              [max_indexes="$withval"],
              [max_indexes=64])
  AC_MSG_CHECKING([max indexes per table])
  AC_DEFINE_UNQUOTED([MAX_INDEXES], [$max_indexes],
                     [Maximum number of indexes per table])
  AC_MSG_RESULT([$max_indexes])
])
dnl ---------------------------------------------------------------------------
dnl END OF MYSQL_CHECK_MAX_INDEXES SECTION
dnl ---------------------------------------------------------------------------


AC_DEFUN([MYSQL_CHECK_CXX_VERSION], [
case $SYSTEM_TYPE in
  *netware*)
    CXX_VERSION=`$CXX -version | grep -i version`
  ;;
  *)
    CXX_VERSION=`$CXX --version | sed 1q`
    if test $? -ne "0" -o -z "$CXX_VERSION"
    then
      CXX_VERSION=`$CXX -V 2>&1|sed 1q` # trying harder for Sun and SGI
    fi
    if test $? -ne "0" -o -z "$CXX_VERSION"
    then
      CXX_VERSION=`$CXX -v 2>&1|sed 1q` # even harder for Alpha
    fi
    if test $? -ne "0" -o -z "$CXX_VERSION"
    then
      CXX_VERSION=""
    fi
esac
if test "$CXX_VERSION"
then
  AC_MSG_CHECKING("C++ compiler version")
  AC_MSG_RESULT("$CXX $CXX_VERSION")
fi
AC_SUBST(CXX_VERSION)
])

AC_DEFUN([MYSQL_PROG_AR], [
case $CXX_VERSION in
  MIPSpro*)
    AR=$CXX
    ARFLAGS="-ar -o"
  ;;
  *Forte*)
    AR=$CXX
    ARFLAGS="-xar -o"
  ;;
  *)
    AC_CHECK_PROG([AR], [ar], [ar])
    if test -z "$AR" || test "$AR" = "false"
    then
      AC_MSG_ERROR([You need ar to build the library])
    fi
    if test -z "$ARFLAGS"
    then
      ARFLAGS="cru"
    fi
esac
AC_SUBST(AR)
AC_SUBST(ARFLAGS)
])

dnl
dnl  Macro to check time_t range: according to C standard
dnl  array index must be greater than 0 => if time_t is signed,
dnl  the code in the macros below won't compile.
dnl

AC_DEFUN([MYSQL_CHECK_TIME_T],[
    AC_MSG_CHECKING(if time_t is unsigned)
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
        [[
#include <time.h>
        ]],
        [[
        int array[(((time_t)-1) > 0) ? 1 : -1];
        ]] )
    ], [
    AC_DEFINE([TIME_T_UNSIGNED], 1, [Define to 1 if time_t is unsigned])
    AC_MSG_RESULT(yes)
    ],
    [AC_MSG_RESULT(no)]
    )
])