summaryrefslogtreecommitdiff
path: root/configure.ac
blob: 53c67de65df2dfc2e1edbcf1044d38f1b88b208b (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
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
# This file is part of libmicrohttpd.
# (C) 2006-2015 Christian Grothoff (and other contributing authors)
#
# libmicrohttpd is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 3, or (at your
# option) any later version.
#
# libmicrohttpd is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with libmicrohttpd; see the file COPYING.  If not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA 02110-1301, USA.
#
#
# Process this file with autoconf to produce a configure script.
#
#
AC_PREREQ([2.60])
LT_PREREQ([2.4.0])
AC_INIT([libmicrohttpd],[0.9.50],[libmicrohttpd@gnu.org])
AM_INIT_AUTOMAKE([silent-rules] [subdir-objects])
AC_CONFIG_HEADERS([MHD_config.h])
AC_CONFIG_MACRO_DIR([m4])
AH_TOP([#define _GNU_SOURCE  1])

LIB_VERSION_CURRENT=50
LIB_VERSION_REVISION=0
LIB_VERSION_AGE=38
AC_SUBST(LIB_VERSION_CURRENT)
AC_SUBST(LIB_VERSION_REVISION)
AC_SUBST(LIB_VERSION_AGE)


AC_MSG_CHECKING([[whether z/OS special settings are required]])
if test `uname -s` = "OS/390"
then
# configure binaries for z/OS
  if test -z "$CC"
  then
    CC=`pwd`"/contrib/xcc"
    chmod +x $CC || true
  fi
  if test -z "$CPP"
  then
    CPP="c89 -E"
  fi
  if test -z "$CXXCPP"
  then
    CXXCPP="c++ -E -+"
  fi
  AC_MSG_RESULT([[yes]])
#  _CCC_CCMODE=1
#  _C89_CCMODE=1
else
  AC_MSG_RESULT([[no]])
fi

# Checks for programs.
AC_PROG_AWK
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_CANONICAL_HOST
AC_PROG_CC_STDC
LT_INIT([win32-dll])
LT_LANG([Windows Resource])

PACKAGE_VERSION_MAJOR=${PACKAGE_VERSION%.*.*}
PACKAGE_VERSION_MINOR=${PACKAGE_VERSION%.*}; PACKAGE_VERSION_MINOR=${PACKAGE_VERSION_MINOR#*.}
PACKAGE_VERSION_SUBMINOR=${PACKAGE_VERSION#*.*.}
AC_SUBST([PACKAGE_VERSION_MAJOR])
AC_SUBST([PACKAGE_VERSION_MINOR])
AC_SUBST([PACKAGE_VERSION_SUBMINOR])
AC_CONFIG_FILES([src/microhttpd/microhttpd_dll_res.rc])

MHD_LIB_CPPFLAGS=""
MHD_LIB_CFLAGS=""
MHD_LIB_LDFLAGS=""
MHD_LIBDEPS=""
# for pkg-config
MHD_REQ_PRIVATE=''
MHD_LIBDEPS_PKGCFG=''

AC_CHECK_TYPE([_Bool],
  [ AC_DEFINE([_MHD_bool],[_Bool],[Define to type which will be used as boolean type.]) ],
  [
    AC_CHECK_HEADER([stdbool.h], [ AC_DEFINE([HAVE_STDBOOL_H],[1],[Define to 1 if you have the <stdbool.h> header file and it's required for _MHD_bool.]) ])
    AC_CHECK_TYPE([bool],
      [ AC_DEFINE([_MHD_bool],[bool]) ],
      [ AC_DEFINE([_MHD_bool],[int]) ],
      [[
        #ifdef HAVE_STDBOOL_H
        #include <stdbool.h>
        #endif
      ]])
  ])

AC_MSG_CHECKING([[for function inline keywords suppoted by $CC]])
save_CFLAGS="$CFLAGS"
AX_APPEND_FLAG([[-Werror=attributes]])
inln_prfx="none"
# Prefer always inline functions
for inln_prfx_chk in "inline __attribute__((always_inline))" __forceinline inline __inline__ __inline _inline _Inline; do
  # Try to link to avoid "symbol undefined" problems at build time
  AC_LINK_IFELSE(
    [
     AC_LANG_PROGRAM(
       [[
         #ifdef __cplusplus
         choke me
         #endif
         #ifdef HAVE_STDBOOL_H
         #include <stdbool.h>
         #endif
         static $inln_prfx_chk _MHD_bool cmpfn(int x, int y)
         { return x > y; }
         static $inln_prfx_chk int sumfn(int x, int y)
         { return x + y; }
       ]],[[
       int a = 1, b = 100, c;
       if (cmpfn(a, b))
         c = sumfn(a, b);
       else
         c = 0 - sumfn(a, b);
       ]])
    ],
    [[ inln_prfx="$inln_prfx_chk" ]])
  test "x$inln_prfx" != "xnone" && break
done
AS_IF([[test "x$ac_cv_c_inline" != "xnone"]],
      [
       AC_DEFINE([INLINE_FUNC],[1],[Define to 1 if your C compiler supports inline functions.])
       AC_DEFINE_UNQUOTED([_MHD_inline],[static $inln_prfx],[Define to prefix which will be used with MHD inline functions.])
      ])
AC_MSG_RESULT([[$inln_prfx]])
CFLAGS="$save_CFLAGS"

# Check system type
shutdown_trig_select='no'
AC_MSG_CHECKING([[for target host OS]])
case "$host_os" in
*darwin* | *rhapsody* | *macosx*)
     AC_DEFINE_UNQUOTED(OSX,1,[This is an OS X system])
     CFLAGS="-no-cpp-precomp -fno-common $CFLAGS"
     mhd_host_os='Darwin'
     AC_MSG_RESULT([[$mhd_host_os]])
     ;;
freebsd*)
     AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
     AC_DEFINE_UNQUOTED(FREEBSD,1,[This is a FreeBSD system])
     mhd_host_os='FreeBSD'
     shutdown_trig_select='yes'
     AC_MSG_RESULT([[$mhd_host_os]])
     ;;
openbsd*)
     AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
     AC_DEFINE_UNQUOTED(OPENBSD,1,[This is an OpenBSD system])
     mhd_host_os='OpenBSD'
     AC_MSG_RESULT([[$mhd_host_os]])
     ;;
netbsd*)
     AC_DEFINE_UNQUOTED(SOMEBSD,1,[This is a BSD system])
     AC_DEFINE_UNQUOTED(NETBSD,1,[This is a NetBSD system])
     mhd_host_os='NetBSD'
     shutdown_trig_select='yes'
     AC_MSG_RESULT([[$mhd_host_os]])
     ;;
*solaris*)
     AC_DEFINE_UNQUOTED(SOLARIS,1,[This is a Solaris system])
     AC_DEFINE_UNQUOTED(_REENTRANT,1,[Need with solaris or errno doesnt work])
     mhd_host_os='Solaris'
     AC_MSG_RESULT([[$mhd_host_os]])
     AC_SEARCH_LIBS(gethostbyname, nsl)
     AC_SEARCH_LIBS(socket, socket)
     ;;
*arm-linux*)
     AC_DEFINE_UNQUOTED(LINUX,1,[This is a Linux kernel])
     shutdown_trig_select='yes'
     mhd_host_os='ARM Linux'
     AC_MSG_RESULT([[$mhd_host_os]])
     CFLAGS="-fPIC -pipe $CFLAGS"
     ;;
*linux*)
     AC_DEFINE_UNQUOTED(LINUX,1,[This is a Linux kernel])
     shutdown_trig_select='yes'
     mhd_host_os='Linux'
     AC_MSG_RESULT([[$mhd_host_os]])
     ;;
*cygwin*)
     AC_DEFINE_UNQUOTED(CYGWIN,1,[This is a Cygwin system])
     mhd_host_os='Windows (Cygwin)'
     AC_MSG_RESULT([[$mhd_host_os]])
     os_is_windows=yes
     ;;
*mingw*)
     AC_DEFINE_UNQUOTED(MINGW,1,[This is a MinGW system])
     AC_DEFINE_UNQUOTED(WINDOWS,1,[This is a Windows system])
     mhd_host_os='Windows (MinGW)'
     AC_MSG_RESULT([[$mhd_host_os]])
     LIBS="$LIBS -lws2_32"
     AC_CHECK_HEADERS([winsock2.h ws2tcpip.h],, AC_MSG_ERROR([[Winsock2 headers are required for W32]]))
     AC_CACHE_CHECK([for MS lib utility], [ac_cv_use_ms_lib_tool],
       [[mslibcheck=`lib 2>&1`
        if [[ $mslibcheck = "Microsoft (R) Library Manager"* ]]; then
          ac_cv_use_ms_lib_tool=yes
        else
          ac_cv_use_ms_lib_tool=no
        fi
         ]])
     if test "x$ac_cv_use_ms_lib_tool" = "xyes"; then
       AC_SUBST([MS_LIB_TOOL], [[lib]])
     fi
     AC_SUBST([lt_cv_objdir])
     os_is_windows=yes
     os_is_native_w32=yes
     ;;
*openedition*)
     AC_DEFINE_UNQUOTED(OS390,1,[This is a OS/390 system])
     mhd_host_os='OS/390'
     AC_MSG_RESULT([[$mhd_host_os]])
    ;;
*)
     mhd_host_os='unrecognised OS'
     AC_MSG_RESULT([[$mhd_host_os]])
     AC_MSG_WARN([Unrecognised OS $host_os])
     AC_DEFINE_UNQUOTED(OTHEROS,1,[Some strange OS])
#    You might want to find out if your OS supports shutdown on listen sockets,
#    and extend the switch statement; if we do not have 'HAVE_LISTEN_SHUTDOWN',
#    pipes are used instead to signal 'select'.
#    AC_DEFINE_UNQUOTED(HAVE_LISTEN_SHUTDOWN,1,[can use shutdown on listen sockets])
;;
esac

AM_CONDITIONAL([HAVE_LISTEN_SHUTDOWN], [test "x$shutdown_trig_select" = "xyes"])
AS_IF([test "x$shutdown_trig_select" = "xyes"], [AC_DEFINE([HAVE_LISTEN_SHUTDOWN],[1],[can use shutdown on listen sockets])])

AC_ARG_WITH([threads],
   [AS_HELP_STRING([--with-threads=LIB],[choose threading library (posix, w32, auto) [auto]])],
   [], [with_threads='auto'])
test "x$with_threads" = "xwin32" && with_threads='w32'
test "x$with_threads" = "xpthreads" && with_threads='posix'

# Check for posix threads support, regardless of configure parameters as
# posix threads are used in some tests even on W32.
AX_PTHREAD(
  [
    HAVE_POSIX_THREADS='yes'
    AC_DEFINE([[HAVE_PTHREAD_H]],[[1]],[Define to 1 if you have the <pthread.h> header file.])
  ],[[HAVE_POSIX_THREADS='no']])
AM_CONDITIONAL([HAVE_POSIX_THREADS],[test "x$HAVE_POSIX_THREADS" = "xyes"])

HAVE_W32_THREADS='no'
AS_IF([[test "x$os_is_windows" = "xyes"]],
   [
    AC_MSG_CHECKING([[for W32 threads]])
    AC_LINK_IFELSE(
      [AC_LANG_PROGRAM([#include <windows.h>], [ HANDLE h = CreateThread(NULL, 0, NULL, NULL, 0, NULL);])]
      , [[HAVE_W32_THREADS='yes']], [[HAVE_W32_THREADS='no']]
      )
    AC_MSG_RESULT([[$HAVE_W32_THREADS]])
   ])

AC_MSG_CHECKING([[for threading lib to use with libmicrohttpd]])
AS_IF([[test "x$with_threads" = "xposix"]],
  [ # forced posix threads
    AS_IF([[test "x$HAVE_POSIX_THREADS" = "xyes"]], [[ USE_THREADS='posix' ]],
      [ AS_IF([[test "x$os_is_windows" = "xyes"]] ,
          [ AC_MSG_ERROR([[Posix threads are not available. Try to configure --with-threads=auto]])],
          [ AC_MSG_ERROR([[No threading lib is available. Consider installing pthreads]])] )
      ])
    ] ,
  [[ test "x$with_threads" = "xw32" ]] ,
  [ # forced w32 threads
    AS_IF([[test "x$HAVE_W32_THREADS" = "xyes"]],
      [[ USE_THREADS='w32' ]],
      [ AC_MSG_ERROR([[W32 threads are not available. Try to configure --with-threads=auto]])])
    ] ,
    [ # automatic threads lib selection
      AS_IF([[test "x$os_is_native_w32" = "xyes" && test "x$HAVE_W32_THREADS" = "xyes"]] ,
        [[ USE_THREADS='w32' ]] ,
        [[ test "x$HAVE_POSIX_THREADS" = "xyes" ]], [[ USE_THREADS='posix' ]],
        [[ test "x$HAVE_W32_THREADS" = "xyes" ]], [[ USE_THREADS='w32' ]],
        [ AC_MSG_ERROR([[No threading lib is available. Consider installing pthreads]]) ]
        )
    ]
  )
if test "x$USE_THREADS" = "xposix"; then
  CC="$PTHREAD_CC"
  AC_DEFINE([MHD_USE_POSIX_THREADS],[1],[define to use pthreads])
  MHD_LIB_CFLAGS="$MHD_LIB_CFLAGS $PTHREAD_CFLAGS"
  MHD_LIBDEPS="$PTHREAD_LIBS $MHD_LIBDEPS"
  MHD_LIBDEPS_PKGCFG="$PTHREAD_LIBS $MHD_LIBDEPS_PKGCFG"
elif test "x$USE_THREADS" = "xw32"; then
  AC_DEFINE([MHD_USE_W32_THREADS],[1],[define to use W32 threads])
fi
AM_CONDITIONAL([USE_POSIX_THREADS], [test "x$USE_THREADS" = "xposix"])
AM_CONDITIONAL([USE_W32_THREADS], [test "x$USE_THREADS" = "xw32"])
AC_MSG_RESULT([[$USE_THREADS]])

if test "x$HAVE_POSIX_THREADS" = "xyes"; then
  # Check for pthread_setname_np()
  SAVE_LIBS="$LIBS"
  SAVE_CFLAGS="$CFLAGS"
  LIBS="$PTHREAD_LIBS $LIBS"
  CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
  AC_CHECK_HEADERS([pthread_np.h])

  AC_MSG_CHECKING([[for pthread_setname_np(3) in NetBSD or OSF1 form]])
  AC_LINK_IFELSE(
    [AC_LANG_PROGRAM([[
#include <pthread.h>
#ifdef HAVE_PTHREAD_NP_H
#include <pthread_np.h>
#endif
]], [[int res = pthread_setname_np(pthread_self(), "name", 0);]])],
    [AC_DEFINE([[HAVE_PTHREAD_SETNAME_NP_NETBSD]], [[1]], [Define if you have NetBSD form (or OSF1 form) of pthread_setname_np(3) function.])
     AC_MSG_RESULT([[yes]])],
    [AC_MSG_RESULT([[no]])

     AC_MSG_CHECKING([[for pthread_setname_np(3) in GNU/Linux form]])
     AC_LINK_IFELSE(
       [AC_LANG_PROGRAM([[
#include <pthread.h>
#ifdef HAVE_PTHREAD_NP_H
#include <pthread_np.h>
#endif
]], [[int res = pthread_setname_np(pthread_self(), "name");]])],
        [AC_DEFINE([[HAVE_PTHREAD_SETNAME_NP_GNU]], [[1]], [Define if you have GNU/Linux form of pthread_setname_np(3) function.])
         AC_MSG_RESULT([[yes]])],
        [AC_MSG_RESULT([[no]])

         AC_MSG_CHECKING([[for pthread_setname_np(3) in Darwin form]])
         AC_LINK_IFELSE(
           [AC_LANG_PROGRAM([[
#include <pthread.h>
#ifdef HAVE_PTHREAD_NP_H
#include <pthread_np.h>
#endif
]], [[int res = pthread_setname_np("name");]])],
           [AC_DEFINE([[HAVE_PTHREAD_SETNAME_NP_DARWIN]], [[1]], [Define if you have Darwin form of pthread_setname_np(3) function.])
            AC_MSG_RESULT([[yes]])],
           [AC_MSG_RESULT([[no]])

            AC_MSG_CHECKING([[for pthread_setname_np(3) in FreeBSD form]])
            AC_LINK_IFELSE(
              [AC_LANG_PROGRAM([[
#include <pthread.h>
#ifdef HAVE_PTHREAD_NP_H
#include <pthread_np.h>
#endif
]], [[pthread_set_name_np(pthread_self(), "name");]])],
              [AC_DEFINE([[HAVE_PTHREAD_SET_NAME_NP_FREEBSD]], [[1]], [Define if you have FreeBSD form of pthread_set_name_np(3) function.])
               AC_MSG_RESULT([[yes]])],
              [AC_MSG_RESULT([[no]])] ) ]) ]) ])

  LIBS="$SAVE_LIBS"
  CFLAGS="$SAVE_CFLAGS"
fi


AM_CONDITIONAL(HAVE_W32, [test "x$os_is_native_w32" = "xyes"])
w32_shared_lib_exp=no
if test "x$enable_shared" = "xyes" && test "x$os_is_native_w32" = "xyes"; then
  if test "x$ac_cv_use_ms_lib_tool" = "xyes" || test -n "$DLLTOOL"; then
    w32_shared_lib_exp=yes
  else
    AC_MSG_WARN([[GNU dlltool or MS lib.exe is required for creating shared library export on W32]])
    AC_MSG_WARN([[Export library libmicrohttpd.lib will not be created]])
  fi
fi
AM_CONDITIONAL(W32_SHARED_LIB_EXP, [test "x$w32_shared_lib_exp" = "xyes"])
AM_CONDITIONAL(USE_MS_LIB_TOOL, [test "x$ac_cv_use_ms_lib_tool" = "xyes"])

# set GCC options
# use '-fno-strict-aliasing', but only if the compiler
# and linker can take it
AX_CHECK_LINK_FLAG([-fno-strict-aliasing],
  [AX_APPEND_COMPILE_FLAGS([-fno-strict-aliasing])])

AC_C_BIGENDIAN

AC_CHECK_PROG([HAVE_CURL_BINARY],[curl],[yes],[no])
AM_CONDITIONAL([HAVE_CURL_BINARY],[test "x$HAVE_CURL_BINARY" = "xyes"])
AC_CHECK_PROG([HAVE_MAKEINFO_BINARY],[makeinfo],[yes],[no])
AM_CONDITIONAL([HAVE_MAKEINFO_BINARY],[test "x$HAVE_MAKEINFO_BINARY" = "xyes"])
AM_CONDITIONAL(W32_STATIC_LIB, [test "x$os_is_native_w32" = "xyes"  && test "x$enable_static" = "xyes"])


AC_ARG_ENABLE([[doc]],
  [AS_HELP_STRING([[--disable-doc]], [do not build any documentation])], ,
    [enable_doc=yes])
test "x$enable_doc" = "xno" || enable_doc=yes
AM_CONDITIONAL([BUILD_DOC], [test "x$enable_doc" = "xyes"])

AC_ARG_ENABLE([[examples]],
  [AS_HELP_STRING([[--disable-examples]], [do not build any examples])], ,
    [enable_examples=yes])
test "x$enable_examples" = "xno" || enable_examples=yes
AM_CONDITIONAL([BUILD_EXAMPLES], [test "x$enable_examples" = "xyes"])

AC_ARG_ENABLE([[poll]],
  [AS_HELP_STRING([[--enable-poll[=ARG]]], [enable poll support (yes, no, auto) [auto]])],
    [enable_poll=${enableval}],
    [enable_poll='auto']
  )

if test "$enable_poll" != "no"; then
  if test "$os_is_native_w32" != "yes"; then
    AC_CHECK_HEADERS([poll.h],
      [
        AC_CHECK_FUNCS([poll], [have_poll='yes'], [have_poll='no'])
      ])
  else
    AC_MSG_CHECKING([for WSAPoll()])
    AC_LINK_IFELSE([
      AC_LANG_PROGRAM([[#include <winsock2.h>]], [[
WSAPOLLFD fda[2];
WSAPoll(fda, 2, 0);]])],
        [
          have_poll='yes'
          AC_DEFINE([HAVE_POLL],[1])
        ], [have_poll='no'])
    AC_MSG_RESULT([$have_poll])
  fi
  if test "$enable_poll" = "yes" && test "$have_poll" != "yes"; then
    AC_MSG_ERROR([[Support for poll was explicitly requested but cannot be enabled on this platform.]])
  fi
  enable_poll="$have_poll"
fi

AC_ARG_ENABLE([[epoll]],
  [AS_HELP_STRING([[--enable-epoll[=ARG]]], [enable epoll support (yes, no, auto) [auto]])],
    [enable_epoll=${enableval}],
    [enable_epoll='auto']
  )

if test "$enable_epoll" != "no"; then
  AX_HAVE_EPOLL
  if test "${ax_cv_have_epoll}" = "yes"; then
    AC_DEFINE([EPOLL_SUPPORT],[1],[define to 1 to enable epoll support])
    enable_epoll='yes'
  else
    AC_DEFINE([EPOLL_SUPPORT],[0],[define to 0 to disable epoll support])
    if test "$enable_epoll" = "yes"; then
      AC_MSG_ERROR([[Support for epoll was explicitly requested but cannot be enabled on this platform.]])
    fi
    enable_epoll='no'
  fi
fi

if test "x$enable_epoll" = "xyes"; then
  AC_CACHE_CHECK([for epoll_create1()], [mhd_cv_have_epoll_create1], [
    AC_LINK_IFELSE([
      AC_LANG_PROGRAM([[#include <sys/epoll.h>]], [[
int fd;
fd = epoll_create1(EPOLL_CLOEXEC);]])],
      [mhd_cv_have_epoll_create1=yes],
      [mhd_cv_have_epoll_create1=no])])
  AS_IF([test "x$mhd_cv_have_epoll_create1" = "xyes"],[
    AC_DEFINE([[HAVE_EPOLL_CREATE1]], [[1]], [Define if you have epoll_create1 function.])])
fi

# Check for headers that are ALWAYS required
AC_CHECK_HEADERS([fcntl.h math.h errno.h limits.h stdio.h locale.h sys/stat.h sys/types.h],,AC_MSG_ERROR([Compiling libmicrohttpd requires standard UNIX headers files]))

# Check for optional headers
AC_CHECK_HEADERS([sys/types.h sys/time.h sys/msg.h netdb.h netinet/in.h netinet/tcp.h time.h sys/socket.h sys/mman.h arpa/inet.h sys/select.h search.h endian.h machine/endian.h sys/endian.h sys/param.h sys/machine.h sys/byteorder.h machine/param.h sys/isa_defs.h inttypes.h stddef.h])
AM_CONDITIONAL([HAVE_TSEARCH], [test "x$ac_cv_header_search_h" = "xyes"])

AC_CHECK_MEMBER([struct sockaddr_in.sin_len],
   [ AC_DEFINE(HAVE_SOCKADDR_IN_SIN_LEN, 1, [Do we have sockaddr_in.sin_len?])
   ],
   [],
   [
    #ifdef HAVE_SYS_TYPES_H
      #include <sys/types.h>
    #endif
    #ifdef HAVE_SYS_SOCKET_H
      #include <sys/socket.h>
    #endif
    #ifdef HAVE_NETINET_IN_H
      #include <netinet/in.h>
    #endif
   ])


# Check for pipe/socketpair signaling
AC_MSG_CHECKING([[whether to enable signaling by socketpair]])

AC_ARG_ENABLE([[socketpair]],
	[AS_HELP_STRING([[--enable-socketpair[=ARG]]], [disable internal singalling by pipes and use socket pair instead (yes, no, try) [no]])], ,
	[AS_IF([[test "x$os_is_windows" = "xyes"]], [enable_socketpair=yes], [enable_socketpair=no])]
  )

AS_IF(
       [[test "x$enable_socketpair" != "xno"]],
         [AS_IF([[test "x$os_is_windows" = "xyes"]],
           [ AC_MSG_RESULT([[yes, forced on W32]]) ],
           [ AC_LINK_IFELSE(
             [ AC_LANG_PROGRAM([[
				#ifdef HAVE_SYS_TYPES_H
				#include <sys/types.h>
				#endif
				#ifdef HAVE_SYS_SOCKET_H
				#include <sys/socket.h>
				#endif
				]],[[
				  int sv[2];
				  if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv) != 0) return 1
				]])
             ],
             [ AC_MSG_RESULT([[yes, socketpair in available]]) ],
             [ AC_MSG_RESULT([[no, socketpair in not available]])
              AS_IF([[test "x$enable_socketpair" = "xyes"]], [ AC_MSG_ERROR([[socketpair signalling cannot be enabled.]]) ])
             ]
             )
           ]
          )
         ],
       [
        AC_MSG_RESULT([[no]])
        AS_IF([[test "x$os_is_windows" = "xyes"]], [ AC_MSG_ERROR([[socketpair must be enabled on W32]]) ])
       ]
     )
if test "x$enable_socketpair" = "xyes"; then
	AC_DEFINE([[MHD_DONT_USE_PIPES]], [[1]], [Define to use pair of sockets instead of pipes for signaling])
fi

AC_CHECK_FUNCS_ONCE([accept4 gmtime_r memmem snprintf])
AC_CHECK_DECL([gmtime_s],
  [
    AC_MSG_CHECKING([[whether gmtime_s is in C11 form]])
    AC_LINK_IFELSE(
        [ AC_LANG_PROGRAM(
          [[ #define __STDC_WANT_LIB_EXT1__ 1
             #include <time.h>
             #ifdef __cplusplus
             extern "C"
             #endif
             struct tm* gmtime_s(const time_t* time, struct tm* result);
           ]], [[
             struct tm res;
             time_t t;
             gmtime_s (&t, &res);
          ]])
        ],
        [
          AC_DEFINE([HAVE_C11_GMTIME_S], [1], [Define to 1 if you have the `gmtime_s' function in C11 form.])
          AC_MSG_RESULT([[yes]])
        ],
        [
          AC_MSG_RESULT([[no]])
          AC_MSG_CHECKING([[whether gmtime_s is in W32 form]])
          AC_LINK_IFELSE(
            [ AC_LANG_PROGRAM(
              [[ #include <time.h>
                 #ifdef __cplusplus
                 extern "C"
                 #endif
                 errno_t gmtime_s(struct tm* _tm, const time_t* time);
              ]], [[
                 struct tm res;
                 time_t t;
                 gmtime_s (&res, &t);
              ]])
            ],
            [
              AC_DEFINE([HAVE_W32_GMTIME_S], [1], [Define to 1 if you have the `gmtime_s' function in W32 form.])
              AC_MSG_RESULT([[yes]])
            ],
            [AC_MSG_RESULT([[no]])
            ])
        ])
  ], [],
  [[#define __STDC_WANT_LIB_EXT1__ 1
    #include<time.h>]])


AC_CHECK_DECLS([SOCK_NONBLOCK], [AC_DEFINE([HAVE_SOCK_NONBLOCK], [1], [SOCK_NONBLOCK is defined in a socket header])], [],
                   [
                    #if defined HAVE_SYS_TYPES_H
                    #  include <sys/types.h>
                    #endif
                    #if defined HAVE_SYS_SOCKET_H
                    #  include <sys/socket.h>
                    #elif defined HAVE_WINSOCK2_H
                    #  include <winsock2.h>
                    #endif
                   ])


AC_SEARCH_LIBS([clock_gettime], [rt], [
				AC_DEFINE(HAVE_CLOCK_GETTIME, 1, [Have clock_gettime])
])

AC_MSG_CHECKING([[for clock_get_time]])
AC_LINK_IFELSE(
  [AC_LANG_PROGRAM(
    [[
      #include <mach/clock.h>
      #include <mach/mach.h>
    ]],
    [[
      clock_serv_t cs;
      mach_timespec_t mt;
      host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &cs);
      clock_get_time(cs, &mt);
      mach_port_deallocate(mach_task_self(), cs);
    ]])
  ],
  [
    AC_DEFINE([HAVE_CLOCK_GET_TIME], [1], [Define to 1 if you have `clock_get_time', `host_get_clock_service' and `mach_port_deallocate' functions.])
    AC_MSG_RESULT([[yes]])
  ],
  [AC_MSG_RESULT([[no]])
  ])

AC_MSG_CHECKING([[for gethrtime]])
AC_LINK_IFELSE(
  [AC_LANG_PROGRAM(
    [[#include <sys/time.h>]], [[hrtime_t hrt = gethrtime(); ]])
  ],
  [
    AC_DEFINE([HAVE_GETHRTIME], [1], [Define to 1 if you have `gethrtime' function.])
    AC_MSG_RESULT([[yes]])
  ],
  [AC_MSG_RESULT([[no]])
  ])

# IPv6
AC_MSG_CHECKING(for IPv6)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdio.h>
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#if HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#if HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#if HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
]], [[
int af=AF_INET6;
int pf=PF_INET6;
struct sockaddr_in6 sa;
printf("%d %d %p\n", af, pf, &sa);
]])],[
have_inet6=yes;
AC_DEFINE([HAVE_INET6], [1], [Provides IPv6 headers])
],[
have_inet6=no
])
AC_MSG_RESULT($have_inet6)

HIDDEN_VISIBILITY_CFLAGS=""
case "$host" in
  *-*-mingw*)
    dnl on mingw32 we do -fvisibility=hidden and __declspec(dllexport)
    AC_DEFINE([_MHD_EXTERN], [__attribute__((visibility("default"))) __declspec(dllexport) extern],
              [defines how to decorate public symbols while building])
    HIDDEN_VISIBILITY_CFLAGS="-fvisibility=hidden"
    ;;
  *)
    dnl on other compilers, check if we can do -fvisibility=hidden
    AX_CHECK_LINK_FLAG([-fvisibility=hidden],
      [AX_CHECK_COMPILE_FLAG([-fvisibility=hidden],
                           [AC_DEFINE([_MHD_EXTERN], [__attribute__((visibility("default"))) extern],
                                       [defines how to decorate public symbols while building])
                            HIDDEN_VISIBILITY_CFLAGS="-fvisibility=hidden"])])
    ;;
esac
AC_SUBST(HIDDEN_VISIBILITY_CFLAGS)

# libcurl (required for testing)
AC_ARG_ENABLE([curl],
  [AS_HELP_STRING([--disable-curl],[disable cURL based testcases])],
  [enable_curl=${enableval}])
curl=0
if test "$enable_curl" != "no"
then
  LIBCURL_CHECK_CONFIG([yes],[7.16.4],[enable_curl=yes],
    [
      if test "x$enable_curl" = "xyes"; then
        AC_MSG_WARN([[cURL-based tests cannot be enabled because libcurl is missing]])
      fi
      enable_curl=no
    ])
fi
if test "$enable_curl" != "no"
then
# Lib cURL & cURL - OpenSSL versions
  AC_DEFINE([MHD_REQ_CURL_VERSION], ["7.16.4"], [required cURL version to run tests])
  AC_DEFINE([MHD_REQ_CURL_OPENSSL_VERSION], ["0.9.8"], [required cURL SSL version to run tests])
  AC_DEFINE([MHD_REQ_CURL_GNUTLS_VERSION], ["2.8.6"], [gnuTLS lib version - used in conjunction with cURL])
  AC_DEFINE([MHD_REQ_CURL_NSS_VERSION], ["3.12.0"], [NSS lib version - used in conjunction with cURL])
fi
AM_CONDITIONAL([HAVE_CURL], [test "x$enable_curl" = "xyes"])

AC_CHECK_LIB([[magic]], [[magic_open]],
  [AC_CHECK_HEADERS([magic.h],
   AM_CONDITIONAL(HAVE_MAGIC, true),
   AM_CONDITIONAL(HAVE_MAGIC, false))],
  AM_CONDITIONAL(HAVE_MAGIC, false))


# large file support (> 4 GB)
AC_SYS_LARGEFILE
AC_FUNC_FSEEKO
AC_CHECK_FUNCS([_lseeki64 lseek64 sendfile64])

# optional: have error messages ?
AC_MSG_CHECKING([[whether to generate error messages]])
AC_ARG_ENABLE([messages],
   [AS_HELP_STRING([--disable-messages],
               [disable MHD error messages])],
   [enable_messages=${enableval}],
   [enable_messages=yes])
AS_IF([[test "x$enable_messages" = "xyes"]],
  [ AC_DEFINE([HAVE_MESSAGES],[1],[Define to 1 to enable support for error messages.]) ],
  [[ enable_messages=no ]])
AC_MSG_RESULT([[$enable_messages]])


# optional: have postprocessor?
AC_MSG_CHECKING([[whether to enable postprocessor]])
AC_ARG_ENABLE([postprocessor],
   [AS_HELP_STRING([--disable-postprocessor],
               [disable MHD PostProcessor functionality])],
   [enable_postprocessor=${enableval}],
   [enable_postprocessor=yes])
AS_IF([[test "x$enable_postprocessor" != "xno"]],
  [ enable_postprocessor=yes
    AC_DEFINE([HAVE_POSTPROCESSOR],[1],[Define to 1 if libmicrohttpd is compiled with postprocessor support.]) ])
AM_CONDITIONAL([HAVE_POSTPROCESSOR], [test "x$enable_postprocessor" != "xno"])
AC_MSG_RESULT([[$enable_postprocessor]])


# optional: have zzuf, socat?
AC_CHECK_PROG([have_zzuf],[zzuf], [yes], [no])
AC_CHECK_PROG([have_socat],[socat], [yes], [no])
AM_CONDITIONAL([HAVE_ZZUF], [test "x$have_zzuf" = "xyes"])
AM_CONDITIONAL([HAVE_SOCAT], [test "x$have_socat" = "xyes"])


# libgcrypt linkage: required for HTTPS support
AM_PATH_LIBGCRYPT([1.2.2], [have_gcrypt=yes], [have_gcrypt=no])
if test "x$have_gcrypt" = "xyes"
then
  SAVE_CFLAGS="$CFLAGS"
  CFLAGS="$CFLAGS $LIBGCRYPT_CFLAGS"
  # LIBGCRYPT_CFLAGS can be actually a CPPFLAGS, so check them both
  SAVE_CPPFLAGS="$CPPFLAGS"
  CPPFLAGS="$CPPFLAGS $LIBGCRYPT_CFLAGS"
  AC_CHECK_HEADERS([gcrypt.h], [], [have_gcrypt=no])
  CFLAGS="$SAVE_CFLAGS"
  CPPFLAGS="$SAVE_CPPFLAGS"
fi

# gnutls
GNUTLS_CPPFLAGS=""
GNUTLS_LDFLAGS=""
have_gnutls=no
have_gnutls_sni=no
have_gnutls_pkgcfg=no
AC_MSG_CHECKING([[how to find GnuTLS library]])
AC_ARG_WITH([[gnutls]],
   [AS_HELP_STRING([[--with-gnutls[=PFX]]],[use GnuTLS for HTTPS support, optional PFX overrides pkg-config data for GnuTLS headers (PFX/include) and libs (PFX/lib)])],
   [
    case $with_gnutls in
      no)
        AC_MSG_RESULT([[GnuTLS disabled]])
        ;;
      yes)
        AC_MSG_RESULT([[automatically, forced]])
        ;;
      *)
        AC_MSG_RESULT([[-I$with_gnutls/include -L$with_gnutls/lib -lgnutls]])
        SAVE_LDFLAGS="$LDFLAGS"
        SAVE_CPPFLAGS="$CPPFLAGS"
        LDFLAGS="-L$with_gnutls/lib $LDFLAGS"
        CPPFLAGS="-I$with_gnutls/include $CPPFLAGS"
        have_gnutls_pkgcfg=no
          AC_CHECK_HEADERS([gnutls/gnutls.h],
            [AC_CHECK_LIB([gnutls], [gnutls_priority_set],
              [
                GNUTLS_CPPFLAGS="-I$with_gnutls/include"
                GNUTLS_LDFLAGS="-L$with_gnutls/lib"
                GNUTLS_LIBS="-lgnutls"
                AC_CHECK_LIB([gnutls], [gnutls_load_file], [AC_CHECK_LIB([gnutls], [gnutls_privkey_import_x509_raw], [have_gnutls_sni=yes])])
                have_gnutls=yes
              ])])
        AS_IF([test "x$have_gnutls" != "xyes"], [AC_MSG_ERROR([can't find usable libgnutls at specified prefix $with_gnutls])])
        LDFLAGS="$SAVE_LDFLAGS"
        CPPFLAGS="$SAVE_CPPFLAGS"
        ;;
    esac
   ],
   [AC_MSG_RESULT([[automatically]])
   ])

AS_IF([test "x$with_gnutls" != "xno" && test "x$have_gnutls" != "xyes"],
  [
    PKG_CHECK_MODULES(GNUTLS, [[gnutls]],
      [
       have_gnutls_pkgcfg='yes'
       SAVE_CPPFLAGS="$CPPFLAGS"
       SAVE_CFLAGS="$CFLAGS"
       SAVE_LDFLAGS="$LDFLAGS"
       SAVE_LIBS="$LIBS"
       CPPFLAGS="$GNUTLS_CFLAGS $CPPFLAGS"
       CFLAGS="$GNUTLS_CFLAGS $CFLAGS"
       LDFLAGS="$GNUTLS_LIBS $LDFLAGS"
       LIBS="$LIBS $GNUTLS_LIBS"
       AC_MSG_CHECKING([[whether GnuTLS is usable]])
       AC_LINK_IFELSE([
         AC_LANG_PROGRAM([[#include <gnutls/gnutls.h>]], [[
                gnutls_session_t session;
                gnutls_priority_t priorities;
                gnutls_global_init();
                gnutls_priority_init(&priorities, "NORMAL", NULL);
                gnutls_init(&session, GNUTLS_SERVER);
                gnutls_priority_set(session, priorities);
          ]])],
          [
           AC_MSG_RESULT([[yes]])
           have_gnutls=yes
           GNUTLS_CPPLAGS="$GNUTLS_CFLAGS"
           GNUTLS_LDFLAGS="$GNUTLS_LIBS"
           AC_MSG_CHECKING([[for gnutls_privkey_import_x509_raw()]])
           AC_LINK_IFELSE([
             AC_LANG_PROGRAM([[#include <gnutls/gnutls.h>]], [[
                    gnutls_datum_t data;
                    gnutls_privkey_t key;
                    gnutls_load_file("key.pem", &data);
                    gnutls_privkey_import_x509_raw(key, &data, GNUTLS_X509_FMT_PEM, NULL, 0);
                    gnutls_free(data.data);
                  ]])], [[have_gnutls_sni=yes]], [[have_gnutls_sni=no]])
           AC_MSG_RESULT([[$have_gnutls_sni]])
          ],
          [
           AC_MSG_RESULT([[no]])
           have_gnutls=no
          ])

       AS_IF([test "x$have_gnutls" != "xyes"], [AC_MSG_WARN([pkg-config reports that GnuTLS is present, but GnuTLS can't be used])])
       CPPFLAGS="$SAVE_CPPFLAGS"
       CFLAGS="$SAVE_CFLAGS"
       LDFLAGS="$SAVE_LDFLAGS"
       LIBS="$SAVE_LIBS"
      ],
      [
       have_gnutls_pkgcfg='no'
       AC_CHECK_HEADERS([gnutls/gnutls.h],
        [AC_CHECK_LIB([gnutls], [gnutls_priority_set],
          [
            GNUTLS_LIBS="-lgnutls"
            AC_CHECK_LIB([gnutls], [gnutls_load_file], [AC_CHECK_LIB([gnutls], [gnutls_privkey_import_x509_raw], [have_gnutls_sni=yes])])
            have_gnutls=yes
          ])])
      ])
  ])

AS_IF([test "x$have_gnutls" != "xyes" && test "x$with_gnutls" = "xyes"], [AC_MSG_ERROR([[can't find usable libgnutls]])])

AM_CONDITIONAL(HAVE_GNUTLS, test "x$have_gnutls" = "xyes")
AM_CONDITIONAL([HAVE_GNUTLS_SNI], [test "x$have_gnutls_sni" = "xyes"])

AC_SUBST([GNUTLS_CPPFLAGS])
AC_SUBST([GNUTLS_CFLAGS])
AC_SUBST([GNUTLS_LDFLAGS])
AC_SUBST([GNUTLS_LIBS])

# optional: HTTPS support.  Enabled by default
AC_MSG_CHECKING(whether to support HTTPS)
AC_ARG_ENABLE([https],
   [AS_HELP_STRING([--enable-https],
               [enable HTTPS support (yes, no, auto)[auto]])],
   [enable_https=${enableval}])
if test "x$enable_https" != "xno"
then
  AS_IF([test "x$have_gnutls" = "xyes" && test "x$have_gcrypt" = "xyes"], [
          AC_DEFINE([HTTPS_SUPPORT],[1],[include HTTPS support])
          enable_https=yes
          MSG_HTTPS="yes (using libgnutls and libgcrypt)"
          MHD_LIB_CPPFLAGS="$MHD_LIB_CPPFLAGS $LIBGCRYPT_CFLAGS $GNUTLS_CPPFLAGS"
          MHD_LIB_CFLAGS="$MHD_LIB_CFLAGS $LIBGCRYPT_CFLAGS $GNUTLS_CFLAGS"
          MHD_LIB_LDFLAGS="$MHD_LIB_LDFLAGS $GNUTLS_LDFLAGS"
          MHD_LIBDEPS="$GNUTLS_LIBS $LIBGCRYPT_LIBS $MHD_LIBDEPS"
          AS_IF([[ test "x$have_gnutls_pkgcfg" = "xyes" ]],
            [ # remove GnuTLS from private libs in .pc file as it defined in Requires.private
              MHD_REQ_PRIVATE='gnutls'
              MHD_LIBDEPS_PKGCFG="$LIBGCRYPT_LIBS $MHD_LIBDEPS_PKGCFG"
            ],
            [
              MHD_REQ_PRIVATE=''
              MHD_LIBDEPS_PKGCFG="$GNUTLS_LIBS $LIBGCRYPT_LIBS $MHD_LIBDEPS_PKGCFG"
          ])
        ], [
          AS_IF([test "x$have_gnutls" = "xyes"], [crypt_missing="libgrypt"],
                [test "x$have_gcrypt" = "xyes"], [crypt_missing="libgnutls"],
                                                 [crypt_missing="libgrypt and libgnutls"])
          AS_IF([[test "x$enable_https" = "xyes" ]], [AC_MSG_ERROR([[HTTPS support cannot be enabled without $crypt_missing.]])])
          AC_DEFINE([HTTPS_SUPPORT],[0],[no libgcrypt or libgnutls])
          enable_https=no
          MSG_HTTPS="no (lacking $crypt_missing)"
        ])
else
  AC_DEFINE([HTTPS_SUPPORT],[0],[disable HTTPS support])
  MSG_HTTPS="no (disabled)"
fi
AC_MSG_RESULT([$MSG_HTTPS])

AM_CONDITIONAL([ENABLE_HTTPS], [test "x$enable_https" = "xyes"])

# optional: HTTP Basic Auth support. Enabled by default
AC_MSG_CHECKING([[whether to support HTTP basic authentication]])
AC_ARG_ENABLE([bauth],
		AS_HELP_STRING([--disable-bauth],
			[disable HTTP basic Auth support]),
		[enable_bauth=${enableval}],
		[enable_bauth=yes])
AS_IF([[test "x$enable_bauth" != "xno"]],
  [ enable_bauth=yes
    AC_DEFINE([BAUTH_SUPPORT],[1],[Define to 1 if libmicrohttpd is compiled with basic Auth support.]) ])
AM_CONDITIONAL([ENABLE_BAUTH], [test "x$enable_bauth" != "xno"])
AC_MSG_RESULT([[$enable_bauth]])

# optional: HTTP Digest Auth support. Enabled by default
AC_MSG_CHECKING([[whether to support HTTP digest authentication]])
AC_ARG_ENABLE([dauth],
		AS_HELP_STRING([--disable-dauth],
			[disable HTTP basic and digest Auth support]),
		[enable_dauth=${enableval}],
		[enable_dauth=yes])
AS_IF([[test "x$enable_dauth" != "xno"]],
  [ enable_dauth=yes
    AC_DEFINE([DAUTH_SUPPORT],[1],[Define to 1 if libmicrohttpd is compiled with digest Auth support.]) ])
AM_CONDITIONAL([ENABLE_DAUTH], [test "x$enable_dauth" != "xno"])
AC_MSG_RESULT([[$enable_dauth]])



MHD_LIB_LDFLAGS="$MHD_LIB_LDFLAGS -export-dynamic -no-undefined"

# gcov compilation
AC_MSG_CHECKING(whether to compile with support for code coverage analysis)
AC_ARG_ENABLE([coverage],
              AS_HELP_STRING([--enable-coverage],
                             [compile the library with code coverage support]),
              [use_gcov=${enableval}],
              [use_gcov=no])
AC_MSG_RESULT($use_gcov)
AM_CONDITIONAL([USE_COVERAGE], [test "x$use_gcov" = "xyes"])

AX_COUNT_CPUS
AC_SUBST([CPU_COUNT])

AC_SUBST(MHD_LIB_CPPFLAGS)
AC_SUBST(MHD_LIB_CFLAGS)
AC_SUBST(MHD_LIB_LDFLAGS)
AC_SUBST(MHD_LIBDEPS)

# for pkg-config
AC_SUBST([MHD_REQ_PRIVATE])
AC_SUBST([MHD_LIBDEPS_PKGCFG])

AC_SUBST(CPPFLAGS)
AC_SUBST(LIBS)
AC_SUBST(LDFLAGS)

AC_CONFIG_FILES([
libmicrohttpd.pc
w32/common/microhttpd_dll_res_vc.rc
Makefile
contrib/Makefile
doc/Makefile
doc/doxygen/Makefile
doc/examples/Makefile
m4/Makefile
src/Makefile
src/include/Makefile
src/platform/Makefile
src/microhttpd/Makefile
src/examples/Makefile
src/testcurl/Makefile
src/testcurl/https/Makefile
src/testzzuf/Makefile])
AC_OUTPUT

# Finally: summary
if test "x$enable_curl" != "xyes"; then
 MSG_CURL="no, many unit tests will not run"
else
 MSG_CURL="yes"
fi

AC_MSG_NOTICE([libmicrohttpd ${PACKAGE_VERSION} Configuration Summary:
  Cross-compiling:   ${cross_compiling}
  Operating System:  ${host_os}
  Threading lib:     ${USE_THREADS}
  libcurl (testing): ${MSG_CURL}
  Target directory:  ${prefix}
  Messages:          ${enable_messages}
  Basic auth.:       ${enable_bauth}
  Digest auth.:      ${enable_dauth}
  Postproc:          ${enable_postprocessor}
  HTTPS support:     ${MSG_HTTPS}
  poll support:      ${enable_poll=no}
  epoll support:     ${enable_epoll=no}
  build docs:        ${enable_doc}
  build examples:    ${enable_examples}
])

if test "x$enable_https" = "xyes"
then
 AC_MSG_NOTICE([HTTPS subsystem configuration:
  License         :  LGPL only
 ])
else
 AC_MSG_NOTICE([
  License         :  LGPL or eCos
])
fi

if test "x$enable_bauth" != "xyes" -o \
        "x$enable_dauth" != "xyes" -o \
        "x$enable_postprocessor" != "xyes"
then
 AC_MSG_NOTICE([WARNING: This will be a custom build with missing symbols. Do NOT use this build in a distribution. Building with these kinds of configure options is only for custom builds for embedded systems.])
fi