summaryrefslogtreecommitdiff
path: root/source4/build/m4/rewrite.m4
blob: d8ba0104ab174bb94b081491f9e94832d83fb5d8 (plain)
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
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
dnl Checks for programs.
dnl Unique-to-Samba variables we'll be playing with.

DYNEXP=

AC_SUBST(SHLIBEXT)
AC_SUBST(LDSHFLAGS)
AC_SUBST(SONAMEFLAG)
AC_SUBST(PICFLAG)

AC_DEFINE([_GNU_SOURCE],[],[Pull in GNU extensions])
AC_SYS_LARGEFILE

#
# Config CPPFLAG settings for strange OS's that must be set
# before other tests.
#
case "$host_os" in
# Try to work out if this is the native HPUX compiler that uses the -Ae flag.
    *hpux*)    
      AC_PROG_CC_FLAG(Ae)
      # mmap on HPUX is completely broken...
      AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
      if test $ac_cv_prog_cc_Ae = yes; then
        CPPFLAGS="$CPPFLAGS -Ae"
      fi
    ;;
#
# VOS may need to have POSIX support and System V compatibility enabled.
#
    *vos*)
          case "$CPPFLAGS" in
	      *-D_POSIX_C_SOURCE*)
		;;
	  *)
		CPPFLAGS="$CPPFLAGS -D_POSIX_C_SOURCE=200112L"
		AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
		;;
          esac
          case "$CPPFLAGS" in
	     *-D_SYSV*|*-D_SVID_SOURCE*)
		;;
	     *)
		CPPFLAGS="$CPPFLAGS -D_SYSV"
		AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
          esac
    ;;

esac


AC_HEADER_DIRENT
AC_HEADER_TIME
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(sys/select.h fcntl.h sys/fcntl.h sys/time.h)
AC_CHECK_HEADERS(utime.h grp.h sys/id.h limits.h memory.h)
AC_CHECK_HEADERS(compat.h math.h)
AC_CHECK_HEADERS(sys/param.h ctype.h sys/wait.h sys/resource.h sys/ioctl.h sys/ipc.h sys/mode.h)
AC_CHECK_HEADERS(sys/mman.h sys/filio.h sys/priv.h sys/shm.h string.h strings.h stdlib.h)
AC_CHECK_HEADERS(sys/vfs.h sys/fs/s5param.h sys/filsys.h termios.h termio.h)
AC_CHECK_HEADERS(fnmatch.h pwd.h sys/termio.h sys/time.h sys/statfs.h sys/statvfs.h stdarg.h)
AC_CHECK_HEADERS(security/pam_modules.h security/_pam_macros.h dlfcn.h)
AC_CHECK_HEADERS(sys/syslog.h syslog.h)
AC_CHECK_HEADERS(stdint.h inttypes.h locale.h)
AC_CHECK_HEADERS(shadow.h)
AC_CHECK_HEADERS(nss.h nss_common.h ns_api.h sys/security.h security/pam_appl.h)
AC_CHECK_HEADERS(sys/capability.h syscall.h sys/syscall.h)
AC_CHECK_HEADERS(sys/acl.h)

AC_CHECK_HEADERS(sys/mount.h, , , [AC_INCLUDES_DEFAULT
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif])


AC_TYPE_SIGNAL
AC_TYPE_UID_T
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
AC_TYPE_PID_T
AC_STRUCT_ST_RDEV
AC_DIRENT_D_OFF
AC_CHECK_TYPE(ino_t,unsigned)
AC_CHECK_TYPE(loff_t,off_t)
AC_CHECK_TYPE(offset_t,loff_t)
AC_CHECK_TYPES(ssize_t)
AC_CHECK_TYPES(intptr_t)
AC_CHECK_TYPES(long long)


############################################
# we need dlopen/dlclose/dlsym/dlerror for PAM, the password database plugins and the plugin loading code
AC_SEARCH_LIBS_EXT(dlopen, [dl], DL_LIBS)
SMB_EXT_LIB(DL,[${DL_LIBS}],[${DL_CFLAGS}],[${DL_CPPFLAGS}],[${DL_LDFLAGS}])
# dlopen/dlclose/dlsym/dlerror will be checked again later and defines will be set then

AC_CACHE_CHECK([for sig_atomic_t type],samba_cv_sig_atomic_t, [
    AC_TRY_COMPILE([
#include <sys/types.h>
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif
#include <signal.h>],[sig_atomic_t i = 0],
	samba_cv_sig_atomic_t=yes,samba_cv_sig_atomic_t=no)])
if test x"$samba_cv_sig_atomic_t" = x"yes"; then
   AC_DEFINE(HAVE_SIG_ATOMIC_T_TYPE,1,[Whether we have the atomic_t variable type])
fi

# stupid headers have the functions but no declaration. grrrr.
AC_HAVE_DECL(errno, [#include <errno.h>])
AC_HAVE_DECL(setresuid, [#include <unistd.h>])
AC_HAVE_DECL(setresgid, [#include <unistd.h>])
AC_HAVE_DECL(asprintf, [#include <stdio.h>])
AC_HAVE_DECL(vasprintf, [#include <stdio.h>])
AC_HAVE_DECL(vsnprintf, [#include <stdio.h>])
AC_HAVE_DECL(snprintf, [#include <stdio.h>])

AC_FUNC_MEMCMP

AC_CHECK_FUNCS(dlopen dlsym dlerror waitpid getcwd strdup strndup strnlen strerror chroot)
AC_CHECK_FUNCS(bzero memset strlcpy strlcat)
AC_CHECK_FUNCS(memmove vsnprintf snprintf asprintf vasprintf setsid pipe crypt16 getauthuid)
AC_CHECK_FUNCS(strftime sigprocmask sigblock sigaction innetgr setnetgrent getnetgrent endnetgrent)
AC_CHECK_FUNCS(initgroups)
AC_CHECK_FUNCS(setgroups sysconf mktime rename ftruncate chsize)
AC_CHECK_FUNCS(getpwanam setlinebuf)
AC_CHECK_FUNCS(srandom random srand rand setenv usleep)
AC_CHECK_FUNCS(syslog vsyslog timegm backtrace)
AC_CHECK_FUNCS(setbuffer)

AC_CHECK_FUNCS(pread pwrite)

# Assume non-shared by default and override below
BLDSHARED="false"

# these are the defaults, good for lots of systems
HOST_OS="$host_os"
LDSHFLAGS="-shared"
SONAMEFLAG="#"
SHLD="\${CC}"
PICFLAG=""
PICSUFFIX="po"
POBAD_CC="#"
SHLIBEXT="so"

AC_MSG_CHECKING([ability to build shared libraries])

# and these are for particular systems
case "$host_os" in
	*linux*)   AC_DEFINE(LINUX,1,[Whether the host os is linux])
		BLDSHARED="true"
		LDSHFLAGS="-shared" 
		DYNEXP="-Wl,--export-dynamic"
		PICFLAG="-fPIC"
		SONAMEFLAG="-Wl,-soname="
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;
	*solaris*) AC_DEFINE(SUNOS5,1,[Whether the host os is solaris])
		BLDSHARED="true"
		LDSHFLAGS="-G"
		SONAMEFLAG="-h "
		if test "${GCC}" = "yes"; then
			PICFLAG="-fPIC"
			if test "${ac_cv_prog_gnu_ld}" = "yes"; then
				DYNEXP="-Wl,-E"
			fi
		else
			PICFLAG="-KPIC"
			## ${CFLAGS} added for building 64-bit shared 
			## libs using Sun's Compiler
			LDSHFLAGS="-G \${CFLAGS}"
			POBAD_CC=""
			PICSUFFIX="po.o"
		fi
		AC_DEFINE(STAT_ST_BLOCKSIZE,512,[The size of a block])
		;;
	*sunos*) AC_DEFINE(SUNOS4,1,[Whether the host os is sunos4])
		BLDSHARED="true"
		LDSHFLAGS="-G"
		SONAMEFLAG="-Wl,-h,"
		PICFLAG="-KPIC"   # Is this correct for SunOS
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;
	*netbsd* | *freebsd*)  BLDSHARED="true"
		LDSHFLAGS="-shared"
		DYNEXP="-Wl,--export-dynamic"
		SONAMEFLAG="-Wl,-soname,"
		PICFLAG="-fPIC -DPIC"
		AC_DEFINE(STAT_ST_BLOCKSIZE,512,[The size of a block])
		;;
	*openbsd*)  BLDSHARED="true"
		LDSHFLAGS="-shared"
		DYNEXP="-Wl,-Bdynamic"
		SONAMEFLAG="-Wl,-soname,"
		PICFLAG="-fPIC"
		AC_DEFINE(STAT_ST_BLOCKSIZE,512,[The size of a block])
		;;
	*irix*) AC_DEFINE(IRIX,1,[Whether the host os is irix])
		case "$host_os" in
		*irix6*) AC_DEFINE(IRIX6,1,[Whether the host os is irix6])
		;;
		esac
		ATTEMPT_WRAP32_BUILD=yes
		BLDSHARED="true"
		LDSHFLAGS="-set_version sgi1.0 -shared"
		SONAMEFLAG="-soname "
		SHLD="\${LD}"
		if test "${GCC}" = "yes"; then
			PICFLAG="-fPIC"
		else 
			PICFLAG="-KPIC"
		fi
		AC_DEFINE(STAT_ST_BLOCKSIZE,512,[The size of a block])
		;;
	*aix*) AC_DEFINE(AIX,1,[Whether the host os is aix])
		BLDSHARED="true"
		LDSHFLAGS="-Wl,-bexpall,-bM:SRE,-bnoentry"
		DYNEXP="-Wl,-brtl,-bexpall"
		PICFLAG="-O2"
		if test "${GCC}" != "yes"; then
			## for funky AIX compiler using strncpy()
			CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
		fi

		AC_DEFINE(STAT_ST_BLOCKSIZE,DEV_BSIZE,[The size of a block])
		;;
	*hpux*) AC_DEFINE(HPUX,1,[Whether the host os is HPUX])
		SHLIBEXT="sl"
		# Use special PIC flags for the native HP-UX compiler.
		if test $ac_cv_prog_cc_Ae = yes; then
			BLDSHARED="true"
			SHLD="/usr/bin/ld"
			LDSHFLAGS="-B symbolic -b -z"
			SONAMEFLAG="+h "
			PICFLAG="+z"
		fi
		DYNEXP="-Wl,-E"
		AC_DEFINE(STAT_ST_BLOCKSIZE,8192,[The size of a block])
		;;
	*qnx*) AC_DEFINE(QNX,1,[Whether the host os is qnx])
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;
	*osf*) AC_DEFINE(OSF1,1,[Whether the host os is osf1])
		BLDSHARED="true"
		LDSHFLAGS="-shared"
		SONAMEFLAG="-Wl,-soname,"
		PICFLAG="-fPIC"
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;
	*sco*) AC_DEFINE(SCO,1,[Whether the host os is sco unix])
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;
	*unixware*) AC_DEFINE(UNIXWARE,1,[Whether the host os is unixware])
		BLDSHARED="true"
		LDSHFLAGS="-shared"
		SONAMEFLAG="-Wl,-soname,"
		PICFLAG="-KPIC"
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;
	*next2*) AC_DEFINE(NEXT2,1,[Whether the host os is NeXT v2])
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;
	*dgux*) AC_CHECK_PROG( ROFF, groff, [groff -etpsR -Tascii -man])
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;
	*sysv4*) AC_DEFINE(SYSV,1,[Whether this is a system V system])
		case "$host" in
			*-univel-*)     if [ test "$GCC" != yes ]; then
					AC_DEFINE(HAVE_MEMSET,1,[Whether memset() is available])
				fi
				LDSHFLAGS="-G"
                            		DYNEXP="-Bexport"
			;;
			*mips-sni-sysv4*) AC_DEFINE(RELIANTUNIX,1,[Whether the host os is reliantunix]);;
		esac
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;

	*sysv5*) AC_DEFINE(SYSV,1,[Whether this is a system V system])
		if [ test "$GCC" != yes ]; then
			AC_DEFINE(HAVE_MEMSET,1,[Whether memset() is available])
		fi
		LDSHFLAGS="-G"
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;
	*vos*) AC_DEFINE(STAT_ST_BLOCKSIZE,4096)
		BLDSHARED="false"
		LDSHFLAGS=""
		;;
	*)
		AC_DEFINE(STAT_ST_BLOCKSIZE,512)
		;;
esac
AC_MSG_RESULT($BLDSHARED)
AC_MSG_CHECKING([linker flags for shared libraries])
AC_MSG_RESULT([$LDSHFLAGS])
AC_MSG_CHECKING([compiler flags for position-independent code])
AC_MSG_RESULT([$PICFLAGS])

#######################################################
# test whether building a shared library actually works
if test $BLDSHARED = true; then
AC_CACHE_CHECK([whether building shared libraries actually works], 
               [ac_cv_shlib_works],[
   ac_cv_shlib_works=no
   # try building a trivial shared library
   if test "$PICSUFFIX" = "po"; then
     $CC $CPPFLAGS $CFLAGS $PICFLAG -c -o shlib.po ${srcdir-.}/build/tests/shlib.c &&
       $CC $CPPFLAGS $CFLAGS `eval echo $LDSHFLAGS` -o shlib.so shlib.po &&
       ac_cv_shlib_works=yes
   else
     $CC $CPPFLAGS $CFLAGS $PICFLAG -c -o shlib.$PICSUFFIX ${srcdir-.}/build/tests/shlib.c &&
       mv shlib.$PICSUFFIX shlib.po &&
       $CC $CPPFLAGS $CFLAGS `eval echo $LDSHFLAGS` -o shlib.so shlib.po &&
       ac_cv_shlib_works=yes
   fi
   rm -f shlib.so shlib.po
])
if test $ac_cv_shlib_works = no; then
   BLDSHARED=false
fi
fi

AC_CACHE_CHECK([for __FUNCTION__ macro],samba_cv_HAVE_FUNCTION_MACRO,[
AC_TRY_COMPILE([#include <stdio.h>], [printf("%s\n", __FUNCTION__);],
samba_cv_HAVE_FUNCTION_MACRO=yes,samba_cv_HAVE_FUNCTION_MACRO=no)])
if test x"$samba_cv_HAVE_FUNCTION_MACRO" = x"yes"; then
    AC_DEFINE(HAVE_FUNCTION_MACRO,1,[Whether there is a __FUNCTION__ macro])
fi

AC_CACHE_CHECK([if gettimeofday takes tz argument],samba_cv_HAVE_GETTIMEOFDAY_TZ,[
AC_TRY_RUN([
#include <sys/time.h>
#include <unistd.h>
main() { struct timeval tv; exit(gettimeofday(&tv, NULL));}],
           samba_cv_HAVE_GETTIMEOFDAY_TZ=yes,samba_cv_HAVE_GETTIMEOFDAY_TZ=no,samba_cv_HAVE_GETTIMEOFDAY_TZ=cross)])
if test x"$samba_cv_HAVE_GETTIMEOFDAY_TZ" = x"yes"; then
    AC_DEFINE(HAVE_GETTIMEOFDAY_TZ,1,[Whether gettimeofday() is available])
fi

AC_CACHE_CHECK([for va_copy],samba_cv_HAVE_VA_COPY,[
AC_TRY_LINK([#include <stdarg.h>
va_list ap1,ap2;], [va_copy(ap1,ap2);],
samba_cv_HAVE_VA_COPY=yes,samba_cv_HAVE_VA_COPY=no)])
if test x"$samba_cv_HAVE_VA_COPY" = x"yes"; then
    AC_DEFINE(HAVE_VA_COPY,1,[Whether va_copy() is available])
fi

if test x"$samba_cv_HAVE_VA_COPY" != x"yes"; then
AC_CACHE_CHECK([for __va_copy],samba_cv_HAVE___VA_COPY,[
AC_TRY_LINK([#include <stdarg.h>
va_list ap1,ap2;], [__va_copy(ap1,ap2);],
samba_cv_HAVE___VA_COPY=yes,samba_cv_HAVE___VA_COPY=no)])
if test x"$samba_cv_HAVE___VA_COPY" = x"yes"; then
    AC_DEFINE(HAVE___VA_COPY,1,[Whether __va_copy() is available])
fi
fi

AC_CACHE_CHECK([for C99 vsnprintf],samba_cv_HAVE_C99_VSNPRINTF,[
AC_TRY_RUN([
#include <sys/types.h>
#include <stdarg.h>
void foo(const char *format, ...) { 
       va_list ap;
       int len;
       char buf[20];
       long long l = 1234567890;
       l *= 100;

       va_start(ap, format);
       len = vsnprintf(buf, 0, format, ap);
       va_end(ap);
       if (len != 5) exit(1);

       va_start(ap, format);
       len = vsnprintf(0, 0, format, ap);
       va_end(ap);
       if (len != 5) exit(1);

       if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(1);

       if (snprintf(buf, 20, "%lld", l) != 12 || strcmp(buf, "123456789000") != 0) exit(1);

       exit(0);
}
main() { foo("hello"); }
],
samba_cv_HAVE_C99_VSNPRINTF=yes,samba_cv_HAVE_C99_VSNPRINTF=no,samba_cv_HAVE_C99_VSNPRINTF=cross)])
if test x"$samba_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
    AC_DEFINE(HAVE_C99_VSNPRINTF,1,[Whether there is a C99 compliant vsnprintf])
fi

AC_CACHE_CHECK([for utimbuf],samba_cv_HAVE_UTIMBUF,[
AC_TRY_COMPILE([#include <sys/types.h>
#include <utime.h>],
[struct utimbuf tbuf;  tbuf.actime = 0; tbuf.modtime = 1; exit(utime("foo.c",&tbuf));],
samba_cv_HAVE_UTIMBUF=yes,samba_cv_HAVE_UTIMBUF=no,samba_cv_HAVE_UTIMBUF=cross)])
if test x"$samba_cv_HAVE_UTIMBUF" = x"yes"; then
    AC_DEFINE(HAVE_UTIMBUF,1,[Whether struct utimbuf is available])
fi

AC_CACHE_CHECK([for Linux kernel oplocks],samba_cv_HAVE_KERNEL_OPLOCKS_LINUX,[
AC_TRY_RUN([
#include <sys/types.h>
#include <fcntl.h>
#ifndef F_GETLEASE
#define F_GETLEASE	1025
#endif
main() {
       int fd = open("/dev/null", O_RDONLY);
       return fcntl(fd, F_GETLEASE, 0) == -1;
}
],
samba_cv_HAVE_KERNEL_OPLOCKS_LINUX=yes,samba_cv_HAVE_KERNEL_OPLOCKS_LINUX=no,samba_cv_HAVE_KERNEL_OPLOCKS_LINUX=cross)])
if test x"$samba_cv_HAVE_KERNEL_OPLOCKS_LINUX" = x"yes"; then
    AC_DEFINE(HAVE_KERNEL_OPLOCKS_LINUX,1,[Whether to use linux kernel oplocks])
fi

AC_CACHE_CHECK([for kernel change notify support],samba_cv_HAVE_KERNEL_CHANGE_NOTIFY,[
AC_TRY_RUN([
#include <sys/types.h>
#include <fcntl.h>
#include <signal.h>
#ifndef F_NOTIFY
#define F_NOTIFY 1026
#endif
main() {
       	exit(fcntl(open("/tmp", O_RDONLY), F_NOTIFY, 0) == -1 ?  1 : 0);
}
],
samba_cv_HAVE_KERNEL_CHANGE_NOTIFY=yes,samba_cv_HAVE_KERNEL_CHANGE_NOTIFY=no,samba_cv_HAVE_KERNEL_CHANGE_NOTIFY=cross)])
if test x"$samba_cv_HAVE_KERNEL_CHANGE_NOTIFY" = x"yes"; then
    AC_DEFINE(HAVE_KERNEL_CHANGE_NOTIFY,1,[Whether kernel notifies changes])
fi

AC_CACHE_CHECK([for kernel share modes],samba_cv_HAVE_KERNEL_SHARE_MODES,[
AC_TRY_RUN([
#include <sys/types.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/file.h>
#ifndef LOCK_MAND
#define LOCK_MAND	32
#define LOCK_READ	64
#endif
main() {
       	exit(flock(open("/dev/null", O_RDWR), LOCK_MAND|LOCK_READ) != 0);
}
],
samba_cv_HAVE_KERNEL_SHARE_MODES=yes,samba_cv_HAVE_KERNEL_SHARE_MODES=no,samba_cv_HAVE_KERNEL_SHARE_MODES=cross)])
if test x"$samba_cv_HAVE_KERNEL_SHARE_MODES" = x"yes"; then
    AC_DEFINE(HAVE_KERNEL_SHARE_MODES,1,[Whether the kernel supports share modes])
fi




AC_CACHE_CHECK([for IRIX kernel oplock type definitions],samba_cv_HAVE_KERNEL_OPLOCKS_IRIX,[
AC_TRY_COMPILE([#include <sys/types.h>
#include <fcntl.h>],
[oplock_stat_t t; t.os_state = OP_REVOKE; t.os_dev = 1; t.os_ino = 1;],
samba_cv_HAVE_KERNEL_OPLOCKS_IRIX=yes,samba_cv_HAVE_KERNEL_OPLOCKS_IRIX=no)])
if test x"$samba_cv_HAVE_KERNEL_OPLOCKS_IRIX" = x"yes"; then
    AC_DEFINE(HAVE_KERNEL_OPLOCKS_IRIX,1,[Whether IRIX kernel oplock type definitions are available])
fi

AC_CACHE_CHECK([for irix specific capabilities],samba_cv_HAVE_IRIX_SPECIFIC_CAPABILITIES,[
AC_TRY_RUN([#include <sys/types.h>
#include <sys/capability.h>
main() {
 cap_t cap;
 if ((cap = cap_get_proc()) == NULL)
   exit(1);
 cap->cap_effective |= CAP_NETWORK_MGT;
 cap->cap_inheritable |= CAP_NETWORK_MGT;
 cap_set_proc(cap);
 exit(0);
}
],
samba_cv_HAVE_IRIX_SPECIFIC_CAPABILITIES=yes,samba_cv_HAVE_IRIX_SPECIFIC_CAPABILITIES=no,samba_cv_HAVE_IRIX_SPECIFIC_CAPABILITIES=cross)])
if test x"$samba_cv_HAVE_IRIX_SPECIFIC_CAPABILITIES" = x"yes"; then
    AC_DEFINE(HAVE_IRIX_SPECIFIC_CAPABILITIES,1,[Whether IRIX specific capabilities are available])
fi


AC_CACHE_CHECK([for ftruncate extend],samba_cv_HAVE_FTRUNCATE_EXTEND,[
AC_TRY_RUN([#include "${srcdir-.}/build/tests/ftruncate.c"],
           samba_cv_HAVE_FTRUNCATE_EXTEND=yes,samba_cv_HAVE_FTRUNCATE_EXTEND=no,samba_cv_HAVE_FTRUNCATE_EXTEND=cross)])
if test x"$samba_cv_HAVE_FTRUNCATE_EXTEND" = x"yes"; then
    AC_DEFINE(HAVE_FTRUNCATE_EXTEND,1,[Truncate extend])
fi

AC_CACHE_CHECK([for broken getgroups],samba_cv_HAVE_BROKEN_GETGROUPS,[
AC_TRY_RUN([#include "${srcdir-.}/build/tests/getgroups.c"],
           samba_cv_HAVE_BROKEN_GETGROUPS=yes,samba_cv_HAVE_BROKEN_GETGROUPS=no,samba_cv_HAVE_BROKEN_GETGROUPS=cross)])
if test x"$samba_cv_HAVE_BROKEN_GETGROUPS" = x"yes"; then
    AC_DEFINE(HAVE_BROKEN_GETGROUPS,1,[Whether getgroups is broken])
fi

AC_CACHE_CHECK([for secure mkstemp],samba_cv_HAVE_SECURE_MKSTEMP,[
AC_TRY_RUN([#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
main() { 
  struct stat st;
  char tpl[20]="/tmp/test.XXXXXX"; 
  int fd = mkstemp(tpl); 
  if (fd == -1) exit(1);
  unlink(tpl);
  if (fstat(fd, &st) != 0) exit(1);
  if ((st.st_mode & 0777) != 0600) exit(1);
  exit(0);
}],
samba_cv_HAVE_SECURE_MKSTEMP=yes,
samba_cv_HAVE_SECURE_MKSTEMP=no,
samba_cv_HAVE_SECURE_MKSTEMP=cross)])
if test x"$samba_cv_HAVE_SECURE_MKSTEMP" = x"yes"; then
    AC_DEFINE(HAVE_SECURE_MKSTEMP,1,[Whether mkstemp is secure])
fi

AC_CACHE_CHECK([for sysconf(_SC_NGROUPS_MAX)],samba_cv_SYSCONF_SC_NGROUPS_MAX,[
AC_TRY_RUN([#include <unistd.h>
main() { exit(sysconf(_SC_NGROUPS_MAX) == -1 ? 1 : 0); }],
samba_cv_SYSCONF_SC_NGROUPS_MAX=yes,samba_cv_SYSCONF_SC_NGROUPS_MAX=no,samba_cv_SYSCONF_SC_NGROUPS_MAX=cross)])
if test x"$samba_cv_SYSCONF_SC_NGROUPS_MAX" = x"yes"; then
    AC_DEFINE(SYSCONF_SC_NGROUPS_MAX,1,[Whether sysconf(_SC_NGROUPS_MAX) is available])
fi

AC_CACHE_CHECK([for working mmap],samba_cv_HAVE_MMAP,[
AC_TRY_RUN([#include "${srcdir-.}/build/tests/shared_mmap.c"],
           samba_cv_HAVE_MMAP=yes,samba_cv_HAVE_MMAP=no,samba_cv_HAVE_MMAP=cross)])
if test x"$samba_cv_HAVE_MMAP" = x"yes"; then
    AC_DEFINE(HAVE_MMAP,1,[Whether mmap works])
fi

AC_CACHE_CHECK([for ftruncate needs root],samba_cv_FTRUNCATE_NEEDS_ROOT,[
AC_TRY_RUN([#include "${srcdir-.}/build/tests/ftruncroot.c"],
           samba_cv_FTRUNCATE_NEEDS_ROOT=yes,samba_cv_FTRUNCATE_NEEDS_ROOT=no,samba_cv_FTRUNCATE_NEEDS_ROOT=cross)])
if test x"$samba_cv_FTRUNCATE_NEEDS_ROOT" = x"yes"; then
    AC_DEFINE(FTRUNCATE_NEEDS_ROOT,1,[Whether ftruncate() needs root])
fi

AC_CACHE_CHECK([for st_blocks in struct stat],samba_cv_HAVE_STAT_ST_BLOCKS,[
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>],
[struct stat st;  st.st_blocks = 0;],
samba_cv_HAVE_STAT_ST_BLOCKS=yes,samba_cv_HAVE_STAT_ST_BLOCKS=no,samba_cv_HAVE_STAT_ST_BLOCKS=cross)])
if test x"$samba_cv_HAVE_STAT_ST_BLOCKS" = x"yes"; then
    AC_DEFINE(HAVE_STAT_ST_BLOCKS,1,[Whether the stat struct has a st_block property])
fi 

AC_CACHE_CHECK([for st_blksize in struct stat],samba_cv_HAVE_STAT_ST_BLKSIZE,[
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>],
[struct stat st;  st.st_blksize = 0;],
samba_cv_HAVE_STAT_ST_BLKSIZE=yes,samba_cv_HAVE_STAT_ST_BLKSIZE=no,samba_cv_HAVE_STAT_ST_BLKSIZE=cross)])
if test x"$samba_cv_HAVE_STAT_ST_BLKSIZE" = x"yes"; then
    AC_DEFINE(HAVE_STAT_ST_BLKSIZE,1,[Whether the stat struct has a st_blksize property])
fi

case "$host_os" in
*linux*)
AC_CACHE_CHECK([for broken RedHat 7.2 system header files],samba_cv_BROKEN_REDHAT_7_SYSTEM_HEADERS,[
AC_TRY_COMPILE([
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#ifdef HAVE_SYS_CAPABILITY_H
#include <sys/capability.h>
#endif
],[int i;],
   samba_cv_BROKEN_REDHAT_7_SYSTEM_HEADERS=no,samba_cv_BROKEN_REDHAT_7_SYSTEM_HEADERS=yes)])
if test x"$samba_cv_BROKEN_REDHAT_7_SYSTEM_HEADERS" = x"yes"; then
   AC_DEFINE(BROKEN_REDHAT_7_SYSTEM_HEADERS,1,[Broken RedHat 7.2 system header files])
fi
;;
esac

AC_SUBST(SMBD_EXTRA_OBJS)
AC_SUBST(SMBD_EXTRA_LIBS)

###############################################
# test for where we get crypt() from
AC_CHECK_LIB_EXT(crypt, CRYPT_LIBS, crypt)
SMB_EXT_LIB_ENABLE(CRYPT,YES)
SMB_EXT_LIB(CRYPT, $CRYPT_LIBS)

##
## moved after the check for -lcrypt in order to
## ensure that the necessary libraries are included
## check checking for truncated salt.  Wrapped by the
## $with_pam_for_crypt variable as above   --jerry
##
if test x"$with_pam_for_crypt" != x"yes"; then
AC_CACHE_CHECK([for a crypt that needs truncated salt],samba_cv_HAVE_TRUNCATED_SALT,[
crypt_LIBS="$LIBS"
LIBS="$AUTHLIBS $LIBS"
AC_TRY_RUN([#include "${srcdir-.}/build/tests/crypttest.c"],
	samba_cv_HAVE_TRUNCATED_SALT=no,samba_cv_HAVE_TRUNCATED_SALT=yes,samba_cv_HAVE_TRUNCATED_SALT=cross)
LIBS="$crypt_LIBS"])
if test x"$samba_cv_HAVE_TRUNCATED_SALT" = x"yes"; then
	AC_DEFINE(HAVE_TRUNCATED_SALT,1,[Whether crypt needs truncated salt])
fi
fi

#################################################
# these tests are taken from the GNU fileutils package
AC_CHECKING(how to get filesystem space usage)
space=no

# Test for statvfs64.
if test $space = no; then
  # SVR4
  AC_CACHE_CHECK([statvfs64 function (SVR4)], fu_cv_sys_stat_statvfs64,
  [AC_TRY_RUN([
#if defined(HAVE_UNISTD_H)
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/statvfs.h>
  main ()
  {
    struct statvfs64 fsd;
    exit (statvfs64 (".", &fsd));
  }],
  fu_cv_sys_stat_statvfs64=yes,
  fu_cv_sys_stat_statvfs64=no,
  fu_cv_sys_stat_statvfs64=cross)])
  if test $fu_cv_sys_stat_statvfs64 = yes; then
    space=yes
    AC_DEFINE(STAT_STATVFS64,1,[Whether statvfs64() is available])
  fi
fi

# Perform only the link test since it seems there are no variants of the
# statvfs function.  This check is more than just AC_CHECK_FUNCS(statvfs)
# because that got a false positive on SCO OSR5.  Adding the declaration
# of a `struct statvfs' causes this test to fail (as it should) on such
# systems.  That system is reported to work fine with STAT_STATFS4 which
# is what it gets when this test fails.
if test $space = no; then
  # SVR4
  AC_CACHE_CHECK([statvfs function (SVR4)], fu_cv_sys_stat_statvfs,
		 [AC_TRY_LINK([#include <sys/types.h>
#include <sys/statvfs.h>],
			      [struct statvfs fsd; statvfs (0, &fsd);],
			      fu_cv_sys_stat_statvfs=yes,
			      fu_cv_sys_stat_statvfs=no)])
  if test $fu_cv_sys_stat_statvfs = yes; then
    space=yes
    AC_DEFINE(STAT_STATVFS,1,[Whether statvfs() is available])
  fi
fi

if test $space = no; then
  # DEC Alpha running OSF/1
  AC_MSG_CHECKING([for 3-argument statfs function (DEC OSF/1)])
  AC_CACHE_VAL(fu_cv_sys_stat_statfs3_osf1,
  [AC_TRY_RUN([
#include <sys/param.h>
#include <sys/types.h>
#include <sys/mount.h>
  main ()
  {
    struct statfs fsd;
    fsd.f_fsize = 0;
    exit (statfs (".", &fsd, sizeof (struct statfs)));
  }],
  fu_cv_sys_stat_statfs3_osf1=yes,
  fu_cv_sys_stat_statfs3_osf1=no,
  fu_cv_sys_stat_statfs3_osf1=no)])
  AC_MSG_RESULT($fu_cv_sys_stat_statfs3_osf1)
  if test $fu_cv_sys_stat_statfs3_osf1 = yes; then
    space=yes
    AC_DEFINE(STAT_STATFS3_OSF1,1,[Whether statfs requires 3 arguments])
  fi
fi

if test $space = no; then
# AIX
  AC_MSG_CHECKING([for two-argument statfs with statfs.bsize dnl
member (AIX, 4.3BSD)])
  AC_CACHE_VAL(fu_cv_sys_stat_statfs2_bsize,
  [AC_TRY_RUN([
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
  main ()
  {
  struct statfs fsd;
  fsd.f_bsize = 0;
  exit (statfs (".", &fsd));
  }],
  fu_cv_sys_stat_statfs2_bsize=yes,
  fu_cv_sys_stat_statfs2_bsize=no,
  fu_cv_sys_stat_statfs2_bsize=no)])
  AC_MSG_RESULT($fu_cv_sys_stat_statfs2_bsize)
  if test $fu_cv_sys_stat_statfs2_bsize = yes; then
    space=yes
    AC_DEFINE(STAT_STATFS2_BSIZE,1,[Whether statfs requires two arguments and struct statfs has bsize property])
  fi
fi

if test $space = no; then
# SVR3
  AC_MSG_CHECKING([for four-argument statfs (AIX-3.2.5, SVR3)])
  AC_CACHE_VAL(fu_cv_sys_stat_statfs4,
  [AC_TRY_RUN([#include <sys/types.h>
#include <sys/statfs.h>
  main ()
  {
  struct statfs fsd;
  exit (statfs (".", &fsd, sizeof fsd, 0));
  }],
    fu_cv_sys_stat_statfs4=yes,
    fu_cv_sys_stat_statfs4=no,
    fu_cv_sys_stat_statfs4=no)])
  AC_MSG_RESULT($fu_cv_sys_stat_statfs4)
  if test $fu_cv_sys_stat_statfs4 = yes; then
    space=yes
    AC_DEFINE(STAT_STATFS4,1,[Whether statfs requires 4 arguments])
  fi
fi

if test $space = no; then
# 4.4BSD and NetBSD
  AC_MSG_CHECKING([for two-argument statfs with statfs.fsize dnl
member (4.4BSD and NetBSD)])
  AC_CACHE_VAL(fu_cv_sys_stat_statfs2_fsize,
  [AC_TRY_RUN([#include <sys/types.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
  main ()
  {
  struct statfs fsd;
  fsd.f_fsize = 0;
  exit (statfs (".", &fsd));
  }],
  fu_cv_sys_stat_statfs2_fsize=yes,
  fu_cv_sys_stat_statfs2_fsize=no,
  fu_cv_sys_stat_statfs2_fsize=no)])
  AC_MSG_RESULT($fu_cv_sys_stat_statfs2_fsize)
  if test $fu_cv_sys_stat_statfs2_fsize = yes; then
    space=yes
	AC_DEFINE(STAT_STATFS2_FSIZE,1,[Whether statfs requires 2 arguments and struct statfs has fsize])
  fi
fi

if test $space = no; then
  # Ultrix
  AC_MSG_CHECKING([for two-argument statfs with struct fs_data (Ultrix)])
  AC_CACHE_VAL(fu_cv_sys_stat_fs_data,
  [AC_TRY_RUN([#include <sys/types.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_FS_TYPES_H
#include <sys/fs_types.h>
#endif
  main ()
  {
  struct fs_data fsd;
  /* Ultrix's statfs returns 1 for success,
     0 for not mounted, -1 for failure.  */
  exit (statfs (".", &fsd) != 1);
  }],
  fu_cv_sys_stat_fs_data=yes,
  fu_cv_sys_stat_fs_data=no,
  fu_cv_sys_stat_fs_data=no)])
  AC_MSG_RESULT($fu_cv_sys_stat_fs_data)
  if test $fu_cv_sys_stat_fs_data = yes; then
    space=yes
    AC_DEFINE(STAT_STATFS2_FS_DATA,1,[Whether statfs requires 2 arguments and struct fs_data is available])
  fi
fi



#######################################
# Check for comparison_fn_t
AC_CACHE_CHECK([for comparison_fn_t],samba_cv_HAVE_COMPARISON_FN_T,[
AC_TRY_COMPILE([
#include <stdlib.h>
int list_find(const void *needle, 
	      const void *base, size_t nmemb, size_t size, comparison_fn_t comp_fn)
{
	return 1;
}
],[],
samba_cv_HAVE_COMPARISON_FN_T=yes,samba_cv_HAVE_COMPARISON_FN_T=no)
])
if test x"$samba_cv_HAVE_COMPARISON_FN_T" = x"yes"; then
	AC_DEFINE(HAVE_COMPARISON_FN_T,1,[Whether or not we have comparison_fn_t])
fi