1. Steve Losh
  2. hg-review-mutt-test

Source

hg-review-mutt-test / configure.ac

   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
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
dnl Process this file with autoconf to produce a configure script.

dnl !!! WHEN ADDING NEW CONFIGURE TESTS, PLEASE ADD CODE TO MAIN.C !!!
dnl !!! TO DUMP THEIR RESULTS WHEN MUTT -V IS CALLED            !!!

AC_PREREQ([2.54])
AC_INIT([mutt.h])
AM_CONFIG_HEADER([config.h])

mutt_cv_version=`cat $srcdir/VERSION`
AM_INIT_AUTOMAKE(mutt, $mutt_cv_version)
AC_SUBST([CONFIG_STATUS_DEPENDENCIES], ['$(top_srcdir)/VERSION'])

AC_GNU_SOURCE

ALL_LINGUAS="de eu ru it es uk fr pl nl cs id sk ko el zh_TW zh_CN pt_BR eo gl sv da lt tr ja hu et ca bg ga"

AC_CANONICAL_HOST

AC_MSG_CHECKING([for prefix])
if test x$prefix = xNONE; then
  mutt_cv_prefix=$ac_default_prefix
else
  mutt_cv_prefix=$prefix
fi
AC_MSG_RESULT($mutt_cv_prefix)

AC_PROG_CC
AC_ISC_POSIX
AM_C_PROTOTYPES
if test "x$U" != "x"; then
  AC_MSG_ERROR(Compiler not ANSI compliant)
fi
AC_PROG_CPP
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AC_PROG_RANLIB
AC_CHECK_TOOL(AR, ar, ar)

AC_C_INLINE
AC_C_CONST

AC_SYS_LARGEFILE
AC_FUNC_FSEEKO
AC_CHECK_SIZEOF(off_t)

AC_PATH_PROG(DBX, dbx, no)
AC_PATH_PROG(GDB, gdb, no)
AC_PATH_PROG(SDB, sdb, no)

if test $GDB != no ; then
        DEBUGGER=$GDB
elif test $DBX != no ; then
        DEBUGGER=$DBX
elif test $SDB != no ; then
        DEBUGGER=$SDB
else
        DEBUGGER=no
fi

AC_SUBST([DEBUGGER])

AH_TEMPLATE([sig_atomic_t],
            [/* Define to `int' if <signal.h> doesn't define.])
AH_TEMPLATE([HAVE_START_COLOR],
            [Define if you have start_color, as a function or macro.])
AH_TEMPLATE([HAVE_TYPEAHEAD],
            [Define if you have typeahead, as a function or macro.])
AH_TEMPLATE([HAVE_BKGDSET],
            [Define if you have bkgdset, as a function or macro.])
AH_TEMPLATE([HAVE_CURS_SET],
            [Define if you have curs_set, as a function or macro.])
AH_TEMPLATE([HAVE_META],
            [Define if you have meta, as a function or macro.])
AH_TEMPLATE([HAVE_USE_DEFAULT_COLORS],
            [Define if you have use_default_colors, as a function or macro.])
AH_TEMPLATE([HAVE_RESIZETERM],
            [Define if you have resizeterm, as a function or macro.])
AH_TEMPLATE([SIG_ATOMIC_VOLATILE_T],
            [Some systems declare sig_atomic_t as volatile, some others -- no.
             This define will have value `sig_atomic_t' or
             `volatile sig_atomic_t' accordingly.])
AH_TEMPLATE([ICONV_NONTRANS],
            [Define as 1 if iconv() only converts exactly and we should treat
             all return values other than (size_t)(-1) as equivalent.])

AH_BOTTOM([/* fseeko portability defines */
#ifdef HAVE_FSEEKO
# define LOFF_T off_t
# if SIZEOF_OFF_T == 8
#  define OFF_T_FMT "%lld"
# else
#  define OFF_T_FMT "%ld"
# endif
#else
# define LOFF_T long
# define fseeko fseek
# define ftello ftell
# define OFF_T_FMT "%ld"
#endif
])
MUTT_C99_INTTYPES

ac_aux_path_sendmail=/usr/sbin:/usr/lib
AC_PATH_PROG(SENDMAIL, sendmail, /usr/sbin/sendmail, $PATH:$ac_aux_path_sendmail)
AC_DEFINE_UNQUOTED(SENDMAIL,"$ac_cv_path_SENDMAIL", [Where to find sendmail on your system.])

OPS='$(srcdir)/OPS'

AC_MSG_CHECKING([whether to build with GPGME support])
AC_ARG_ENABLE(gpgme, AC_HELP_STRING([--enable-gpgme], [Enable GPGME support]),
[       if test x$enableval = xyes; then
		enable_gpgme=yes
	fi
])

if test x"$enable_gpgme" = xyes; then
   AC_MSG_RESULT(yes)
   AM_PATH_GPGME(1.0.0, AC_DEFINE(CRYPT_BACKEND_GPGME, 1,
		 [Defined, if GPGME support is enabled]),
		 [gpgme_found=no])
   if test x"$gpgme_found" = xno; then
      AC_MSG_ERROR([*** GPGME not found ***])
   else
      AM_PATH_GPGME(1.1.1, AC_DEFINE(HAVE_GPGME_PKA_TRUST, 1,
				  [Define if GPGME supports PKA]))
      #needed to get GPGME_LIBS and al correctly
      AM_PATH_GPGME(1.0.0, AC_DEFINE(CRYPT_BACKEND_GPGME, 1,
                    [Define if you use GPGME to support OpenPGP]))
      MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS crypt-gpgme.o crypt-mod-pgp-gpgme.o crypt-mod-smime-gpgme.o"
   fi
else
   AC_MSG_RESULT([no])
fi

AC_ARG_ENABLE(pgp, AC_HELP_STRING([--disable-pgp], [Disable PGP support]),
[       if test x$enableval = xno ; then
                have_pgp=no
        fi
])

if test x$have_pgp != xno ; then
        AC_DEFINE(CRYPT_BACKEND_CLASSIC_PGP,1, [Define if you want classic PGP support.])
        PGPAUX_TARGET="pgpring\$(EXEEXT) pgpewrap\$(EXEEXT)"
        MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS pgp.o pgpinvoke.o pgpkey.o pgplib.o gnupgparse.o pgpmicalg.o pgppacket.o crypt-mod-pgp-classic.o"
fi

AC_ARG_ENABLE(smime, AC_HELP_STRING([--disable-smime], [Disable SMIME support]),
[	if test x$enableval = xno ; then
		have_smime=no
	fi
])
 
if test x$have_smime != xno ; then
	AC_DEFINE(CRYPT_BACKEND_CLASSIC_SMIME, 1, [Define if you want clasic S/MIME support.])
	MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS smime.o crypt-mod-smime-classic.o"
	SMIMEAUX_TARGET="smime_keys"
fi

AC_ARG_WITH(mixmaster, AC_HELP_STRING([--with-mixmaster[=PATH]], [Include Mixmaster support]),
  [if test "$withval" != no
   then
     if test -x "$withval"
     then
       MIXMASTER="$withval"
     else
       MIXMASTER="mixmaster"
     fi
     OPS="$OPS \$(srcdir)/OPS.MIX"
     MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS remailer.o"
     AC_DEFINE_UNQUOTED(MIXMASTER,"$MIXMASTER", [Where to find mixmaster on your system.])
   fi])

# We now require all OPS
OPS="$OPS \$(srcdir)/OPS.PGP \$(srcdir)/OPS.SMIME \$(srcdir)/OPS.CRYPT "
AC_SUBST([OPS])

AC_SUBST(PGPAUX_TARGET)
AC_SUBST(SMIMEAUX_TARGET)

AC_PATH_PROG(ISPELL, ispell, no)
if test $ISPELL != no; then
        AC_DEFINE_UNQUOTED(ISPELL,"$ISPELL",[ Where to find ispell on your system. ])
fi

AC_ARG_WITH(slang, AC_HELP_STRING([--with-slang[=DIR]], [Use S-Lang instead of ncurses]),
        [AC_CACHE_CHECK([if this is a BSD system], mutt_cv_bsdish,
                [AC_TRY_RUN([#include <sys/param.h>
#include <stdlib.h>

main ()
{
#ifdef BSD
        exit (0);
#else
        exit (1);
#endif
}],
                        mutt_cv_bsdish=yes,
                        mutt_cv_bsdish=no,
                        mutt_cv_bsdish=no)])

        AC_MSG_CHECKING(for S-Lang)
        if test $withval = yes; then
                if test -d $srcdir/../slang; then
                        mutt_cv_slang=$srcdir/../slang/src
                        CPPFLAGS="$CPPFLAGS -I${mutt_cv_slang}"
                        LDFLAGS="$LDFLAGS -L${mutt_cv_slang}/objs"
                else
                        if test -d $mutt_cv_prefix/include/slang; then
                                CPPFLAGS="$CPPFLAGS -I$mutt_cv_prefix/include/slang"
                        elif test -d /usr/include/slang; then
                                CPPFLAGS="$CPPFLAGS -I/usr/include/slang"
                        fi
                        mutt_cv_slang=yes
                fi
        else
                dnl ---Check to see if $withval is a source directory
                if test -f $withval/src/slang.h; then
                        mutt_cv_slang=$withval/src
                        CPPFLAGS="$CPPFLAGS -I${mutt_cv_slang}"
                        LDFLAGS="$LDFLAGS -L${mutt_cv_slang}/objs"
                else
                        dnl ---Must be installed somewhere
                        mutt_cv_slang=$withval
                        if test -d $withval/include/slang; then
                                CPPFLAGS="$CPPFLAGS -I${withval}/include/slang"
                        elif test -d $withval/include; then
                                CPPFLAGS="$CPPFLAGS -I${withval}/include"
                        fi
                        LDFLAGS="$LDFLAGS -L${withval}/lib"
                fi
        fi
        AC_MSG_RESULT($mutt_cv_slang)
        if test $mutt_cv_bsdish = yes; then
                AC_CHECK_LIB(termlib, main)
        fi
        AC_DEFINE(USE_SLANG_CURSES,1,
                [ Define if you compile with SLang instead of curses/ncurses. ])
        AC_DEFINE(HAVE_COLOR,1,[ Define if your curses library supports color. ])
        MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS resize.o"

        dnl --- now that we've found it, check the link

        AC_CHECK_LIB(slang, SLtt_get_terminfo,
                [MUTTLIBS="$MUTTLIBS -lslang -lm"],
                [AC_MSG_ERROR(unable to compile.  check config.log)], -lm)

        ],

        [mutt_cv_curses=/usr
        AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses=DIR], [Where ncurses is installed]),
                [if test $withval != yes; then
                        mutt_cv_curses=$withval
                fi
                if test x$mutt_cv_curses != x/usr; then
                        LDFLAGS="$LDFLAGS -L${mutt_cv_curses}/lib"
                        CPPFLAGS="$CPPFLAGS -I${mutt_cv_curses}/include"
                fi])

	AC_CHECK_FUNC(initscr,,[
	cf_ncurses="ncurses"
	for lib in ncurses ncursesw
	do
		AC_CHECK_LIB($lib, waddnwstr, [cf_ncurses="$lib"; break])
	done
        AC_CHECK_LIB($cf_ncurses, initscr,
                [MUTTLIBS="$MUTTLIBS -l$cf_ncurses"
		
                if test "$cf_ncurses" = ncursesw; then
			AC_CHECK_HEADERS(ncursesw/ncurses.h,[cf_cv_ncurses_header="ncursesw/ncurses.h"])
		else
                  AC_CHECK_HEADERS(ncurses/ncurses.h,[cf_cv_ncurses_header="ncurses/ncurses.h"],
                    [AC_CHECK_HEADERS(ncurses.h,[cf_cv_ncurses_header="ncurses.h"])])
		fi],

                [CF_CURSES_LIBS])
		])

        old_LIBS="$LIBS"
        LIBS="$LIBS $MUTTLIBS"
        CF_CHECK_FUNCDECLS([#include <${cf_cv_ncurses_header-curses.h}>],
                           [start_color typeahead bkgdset curs_set meta use_default_colors resizeterm])
        if test "$ac_cv_func_decl_start_color" = yes; then
                AC_DEFINE(HAVE_COLOR,1,[ Define if your curses library supports color. ])
        fi
        if test "$ac_cv_func_decl_resizeterm" = yes; then
                MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS resize.o"
        fi
        LIBS="$old_LIBS"
        ])

AC_HEADER_STDC

AC_CHECK_HEADERS(stdarg.h sys/ioctl.h ioctl.h sysexits.h)
AC_CHECK_HEADERS(sys/time.h sys/resource.h)
AC_CHECK_HEADERS(unix.h)

AC_CHECK_FUNCS(setrlimit getsid)

AC_TYPE_SIGNAL

AC_MSG_CHECKING(for sig_atomic_t in signal.h)
AC_EGREP_HEADER(sig_atomic_t,signal.h,
  [
    ac_cv_type_sig_atomic_t=yes;
    AC_EGREP_HEADER(volatile.*sig_atomic_t,
                    signal.h,
                    [
                        is_sig_atomic_t_volatile=yes;
                        AC_MSG_RESULT([yes, volatile])
                    ],
                    [
                        is_sig_atomic_t_volatile=no;
                        AC_MSG_RESULT([yes, non volatile])
                    ])
  ],
  [
    AC_MSG_RESULT(no)
    AC_CHECK_TYPE(sig_atomic_t, int)
    is_sig_atomic_t_volatile=no
  ])
if test $is_sig_atomic_t_volatile = 'yes'
then
    AC_DEFINE(SIG_ATOMIC_VOLATILE_T, sig_atomic_t)
else
    AC_DEFINE(SIG_ATOMIC_VOLATILE_T, [volatile sig_atomic_t])
fi

AC_DECL_SYS_SIGLIST

AC_TYPE_PID_T
AC_CHECK_TYPE(ssize_t, int)

AC_CHECK_FUNCS(fgetpos memmove setegid srand48 strerror)

AC_REPLACE_FUNCS([setenv strcasecmp strdup])

AC_CHECK_FUNC(getopt)
if test $ac_cv_func_getopt = yes; then
        AC_CHECK_HEADERS(getopt.h)
fi

SNPRINTFOBJS=""
AC_CHECK_FUNC(snprintf, [mutt_cv_func_snprintf=yes], [mutt_cv_func_snprintf=no])
AC_CHECK_FUNC(vsnprintf, [mutt_cv_func_vsnprintf=yes], [mutt_cv_func_vsnprintf=no])
if test $mutt_cv_func_snprintf = yes; then
AC_CACHE_CHECK([whether your system's snprintf is C99 compliant],
        [mutt_cv_c99_snprintf],
        AC_TRY_RUN([
#include <stdio.h>
int main()
{
changequote(, )dnl
  char buf[8];
  int len = snprintf(buf, 4, "1234567");
  return (len != 7 || buf[3] != '\0');
changequote([, ])dnl
}
        ], mutt_cv_c99_snprintf=yes, mutt_cv_c99_snprintf=no, mutt_cv_c99_snprintf=no))
else
        mutt_cv_c99_snprintf=no
fi
if test $mutt_cv_func_vsnprintf = yes; then
AC_CACHE_CHECK([whether your system's vsnprintf is C99 compliant],
        [mutt_cv_c99_vsnprintf],
        AC_TRY_RUN([
#include <stdarg.h>
#include <stdio.h>
int foo(const char *fmt, ...)
{
changequote(, )dnl
  char buf[8];
  int len;
  va_list ap;
  va_start(ap, fmt);
  len = vsnprintf(buf, 4, fmt, ap);
  va_end(ap);
  return (len != 7 || buf[3] != '\0');
changequote([, ])dnl
}

int main()
{
  return foo("%s", "1234567");
}
        ], mutt_cv_c99_vsnprintf=yes, mutt_cv_c99_vsnprintf=no, mutt_cv_c99_vsnprintf=no))
else
        mutt_cv_c99_vsnprintf=no
fi
if test $mutt_cv_c99_snprintf = yes; then
        AC_DEFINE(HAVE_SNPRINTF, 1, [ Define to 1 if you have a C99 compliant snprintf function. ])
fi
if test $mutt_cv_c99_vsnprintf = yes; then
        AC_DEFINE(HAVE_VSNPRINTF, 1, [ Define to 1 if you have a C99 compliant vsnprintf function. ])
fi
if test $mutt_cv_c99_snprintf = no -o $mutt_cv_c99_vsnprintf = no; then
        AC_LIBOBJ(snprintf)
fi

XIPH_FUNC_VA_COPY

dnl SCO uses chsize() instead of ftruncate()
AC_CHECK_FUNCS(ftruncate, , [AC_CHECK_LIB(x, chsize)])

dnl SCO has strftime() in libintl
AC_CHECK_FUNCS(strftime, , [AC_CHECK_LIB(intl, strftime)])

dnl AIX may not have fchdir()
AC_CHECK_FUNCS(fchdir, , [mutt_cv_fchdir=no])

AC_ARG_WITH(regex, AC_HELP_STRING([--with-regex], [Use the GNU regex library]),
        [mutt_cv_regex=yes],
        [AC_CHECK_FUNCS(regcomp, mutt_cv_regex=no, mutt_cv_regex=yes)])

if test $mutt_cv_regex = no ; then
AC_CACHE_CHECK([whether your system's regexp library is completely broken],
        [mutt_cv_regex_broken],
        AC_TRY_RUN([
#include <unistd.h>
#include <regex.h>
main() { regex_t blah ; regmatch_t p; p.rm_eo = p.rm_eo; return regcomp(&blah, "foo.*bar", REG_NOSUB) || regexec (&blah, "foobar", 0, NULL, 0); }],
        mutt_cv_regex_broken=no, mutt_cv_regex_broken=yes, mutt_cv_regex_broken=yes))
        if test $mutt_cv_regex_broken = yes ; then
                echo "Using the included GNU regex instead." >&AC_FD_MSG
                mutt_cv_regex=yes
        fi
fi

if test $mutt_cv_regex = yes; then
        AC_DEFINE(USE_GNU_REGEX,1,[ Define if you want to use the included regex.c. ])
        AC_LIBOBJ(regex)
fi


AC_ARG_WITH(homespool,
  AC_HELP_STRING([--with-homespool[=FILE]], [File in user's directory where new mail is spooled]), with_homespool=${withval})
if test x$with_homespool != x; then
        if test $with_homespool = yes; then
                with_homespool=mailbox
        fi
        AC_DEFINE_UNQUOTED(MAILPATH,"$with_homespool",[ Where new mail is spooled. ])
        AC_DEFINE(HOMESPOOL,1,
          [Is mail spooled to the user's home directory?  If defined,
           MAILPATH should be set to the filename of the spool mailbox
           relative the the home directory.
           use: configure --with-homespool=FILE])
        AC_DEFINE(USE_DOTLOCK,1,[ Define to use dotlocking for mailboxes. ])
        mutt_cv_setgid=no
else
        AC_ARG_WITH(mailpath, AC_HELP_STRING([--with-mailpath=DIR], [Directory where spool mailboxes are located]),
                [mutt_cv_mailpath=$withval],
                [ AC_CACHE_CHECK(where new mail is stored, mutt_cv_mailpath,
                        [mutt_cv_mailpath=no
                        if test -d /var/mail; then
                                mutt_cv_mailpath=/var/mail
                        elif test -d /var/spool/mail; then
                                mutt_cv_mailpath=/var/spool/mail
                        elif test -d /usr/spool/mail; then
                                mutt_cv_mailpath=/usr/spool/mail
                        elif test -d /usr/mail; then
                                mutt_cv_mailpath=/usr/mail
                        fi])
                ])
        if test "$mutt_cv_mailpath" = no; then
                AC_MSG_ERROR("Could not determine where new mail is stored.")
        fi
        AC_DEFINE_UNQUOTED(MAILPATH,"$mutt_cv_mailpath",[ Where new mail is spooled. ])

        AC_CACHE_CHECK(if $mutt_cv_mailpath is world writable, mutt_cv_worldwrite, [AC_TRY_RUN([#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>

int main (int argc, char **argv)
{
        struct stat s;

        stat ("$mutt_cv_mailpath", &s);
        if (s.st_mode & S_IWOTH) exit (0);
        exit (1);
}], mutt_cv_worldwrite=yes, mutt_cv_worldwrite=no, mutt_cv_worldwrite=no)])

        mutt_cv_setgid=no
        if test $mutt_cv_worldwrite = yes; then
                AC_DEFINE(USE_DOTLOCK,1,[ Define to use dotlocking for mailboxes. ])
        else

                AC_CACHE_CHECK(if $mutt_cv_mailpath is group writable, mutt_cv_groupwrite, [AC_TRY_RUN([#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>

int main (int argc, char **argv)
{
        struct stat s;

        stat ("$mutt_cv_mailpath", &s);
        if (s.st_mode & S_IWGRP) exit (0);
        exit (1);
}], mutt_cv_groupwrite=yes, mutt_cv_groupwrite=no, mutt_cv_groupwrite=no)])

                if test $mutt_cv_groupwrite = yes; then
                        AC_DEFINE(USE_DOTLOCK,1,[ Define to use dotlocking for mailboxes. ])
                        AC_DEFINE(USE_SETGID,1,[ Define if mutt should run setgid "mail". ])
                        mutt_cv_setgid=yes
                fi
        fi
fi

AC_ARG_ENABLE(external_dotlock, AC_HELP_STRING([--enable-external-dotlock], [Force use of an external dotlock program]),
        [mutt_cv_external_dotlock="$enableval"])

if test "x$mutt_cv_setgid" = "xyes" || test "x$mutt_cv_fchdir" = "xno" \
        || test "x$mutt_cv_external_dotlock" = "xyes"
then
        AC_DEFINE(DL_STANDALONE,1,[ Define if you want to use an external dotlocking program. ])
        DOTLOCK_TARGET="mutt_dotlock"
else
        MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS dotlock.o"
fi

AC_SUBST(DOTLOCK_TARGET)


AC_MSG_CHECKING(where to put the documentation)
AC_ARG_WITH(docdir, AC_HELP_STRING([--with-docdir=PATH], [Specify where to put the documentation]),
        [mutt_cv_docdir=$withval],
        [mutt_cv_docdir='${prefix}/doc/mutt'])
AC_MSG_RESULT($mutt_cv_docdir)

docdir=$mutt_cv_docdir
AC_SUBST(docdir)

if test x$mutt_cv_setgid = xyes; then
        DOTLOCK_GROUP='mail'
        DOTLOCK_PERMISSION=2755
else
        DOTLOCK_GROUP=''
        DOTLOCK_PERMISSION=755
fi
AC_SUBST(DOTLOCK_GROUP)
AC_SUBST(DOTLOCK_PERMISSION)

AC_ARG_WITH(domain, AC_HELP_STRING([--with-domain=DOMAIN], [Specify your DNS domain name]),
        [if test $withval != yes; then
            if test $withval != no; then
                AC_DEFINE_UNQUOTED(DOMAIN,"$withval",[ Define your domain name. ])
            fi
        fi])

need_socket="no"

dnl -- socket dependencies --

AC_ARG_ENABLE(pop,  AC_HELP_STRING([--enable-pop], [Enable POP3 support]),
[       if test x$enableval = xyes ; then
                AC_DEFINE(USE_POP,1,[ Define if you want support for the POP3 protocol. ])
                MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS pop.o pop_lib.o pop_auth.o"
                need_pop="yes"
                need_socket="yes"
                need_md5="yes"
        fi
])

AC_ARG_ENABLE(imap, AC_HELP_STRING([--enable-imap], [Enable IMAP support]),
[       if test x$enableval = xyes ; then
                AC_DEFINE(USE_IMAP,1,[ Define if you want support for the IMAP protocol. ])
                LIBIMAP="-Limap -limap"
                LIBIMAPDEPS="\$(top_srcdir)/imap/imap.h imap/libimap.a"
                need_imap="yes"
                need_socket="yes"
                need_md5="yes"
        fi
])
AM_CONDITIONAL(BUILD_IMAP, test x$need_imap = xyes)

AC_ARG_ENABLE(smtp, AC_HELP_STRING([--enable-smtp], [include internal SMTP relay support]),
	[if test $enableval = yes; then
		AC_DEFINE(USE_SMTP, 1, [Include internal SMTP relay support])
            	MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS smtp.o"
		need_socket="yes"
	fi])

if test x"$need_imap" = xyes -o x"$need_pop" = xyes ; then
  MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS bcache.o"
fi

dnl -- end socket dependencies --

if test "$need_socket" = "yes"
then
        AC_CHECK_HEADERS([sys/select.h])
        AC_MSG_CHECKING([for socklen_t])
        AC_EGREP_HEADER(socklen_t, sys/socket.h, AC_MSG_RESULT([yes]),
                AC_MSG_RESULT([no])
                AC_DEFINE(socklen_t,int,
                        [ Define to 'int' if <sys/socket.h> doesn't have it. ]))
        AC_CHECK_FUNC(gethostent, , AC_CHECK_LIB(nsl, gethostent))
        AC_CHECK_FUNC(setsockopt, , AC_CHECK_LIB(socket, setsockopt))
        AC_CHECK_FUNCS(getaddrinfo)
        AC_DEFINE(USE_SOCKET,1,
                [ Include code for socket support. Set automatically if you enable POP3 or IMAP ])
        MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS account.o mutt_socket.o mutt_tunnel.o"
fi

dnl -- imap dependencies --

AC_ARG_WITH(gss, AC_HELP_STRING([--with-gss[=PFX]], [Compile in GSSAPI authentication for IMAP]), 
    gss_prefix="$withval", gss_prefix="no")
if test "$gss_prefix" != "no"
then
  if test "$need_imap" = "yes"
  then
    MUTT_AM_PATH_GSSAPI(gss_prefix)
    AC_MSG_CHECKING(GSSAPI implementation)
    AC_MSG_RESULT($GSSAPI_IMPL)
    if test "$GSSAPI_IMPL" = "none"
    then
      AC_CACHE_SAVE
      AC_MSG_RESULT([GSSAPI libraries not found])
    fi
    if test "$GSSAPI_IMPL" = "Heimdal"
    then
      AC_DEFINE(HAVE_HEIMDAL,1,[ Define if your GSSAPI implementation is Heimdal ])
    fi
    CPPFLAGS="$CPPFLAGS $GSSAPI_CFLAGS"
    MUTTLIBS="$MUTTLIBS $GSSAPI_LIBS"
    AC_DEFINE(USE_GSS,1,[ Define if you have GSSAPI libraries available ])
    need_gss="yes"
  else
    AC_MSG_WARN([GSS was requested but IMAP is not enabled])
  fi
fi
AM_CONDITIONAL(USE_GSS, test x$need_gss = xyes)

dnl -- end imap dependencies --

AC_ARG_WITH(ssl, AC_HELP_STRING([--with-ssl[=PFX]], [Compile in SSL support for POP/IMAP/SMTP using OpenSSL]),
[       if test "$with_ssl" != "no"
        then
          if test "$need_socket" != "yes"; then
           AC_MSG_WARN([SSL support is only useful with POP, IMAP or SMTP support])
	  else
            if test "$with_ssl" != "yes"
            then
             LDFLAGS="$LDFLAGS -L$withval/lib"
             CPPFLAGS="$CPPFLAGS -I$withval/include"
            fi
            saved_LIBS="$LIBS"

            AC_CHECK_LIB(crypto, X509_new,, AC_MSG_ERROR([Unable to find SSL library]))
            AC_CHECK_LIB(ssl, SSL_new,, AC_MSG_ERROR([Unable to find SSL library]), -lcrypto)

            AC_CHECK_FUNCS(RAND_status RAND_egd)

            AC_DEFINE(USE_SSL,1,[ Define if you want support for SSL. ])
            AC_DEFINE(USE_SSL_OPENSSL,1,[ Define if you want support for SSL via OpenSSL. ])
            LIBS="$saved_LIBS"
            MUTTLIBS="$MUTTLIBS -lssl -lcrypto"
            MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS mutt_ssl.o"
            need_ssl=yes
          fi
        fi
])

AC_ARG_WITH([gnutls], AC_HELP_STRING([--with-gnutls[=PFX]], [Compile in SSL support for POP/IMAP/SMTP using gnutls]),
    [gnutls_prefix="$withval"], [gnutls_prefix="no"])
if test "$gnutls_prefix" != "no" -a x"$need_ssl" != xyes
then
  if test "$need_socket" != "yes"
  then
    AC_MSG_WARN([SSL support is only useful with POP, IMAP or SMTP support])
  else
    MUTT_AM_PATH_GNUTLS([$gnutls_prefix],
      [dnl GNUTLS found
      CPPFLAGS="$CPPFLAGS $LIBGNUTLS_CFLAGS"
      MUTTLIBS="$MUTTLIBS $LIBGNUTLS_LIBS"

      AC_DEFINE(USE_SSL,1,[ Define if you want support for SSL. ])
      AC_DEFINE(USE_SSL_GNUTLS,1,[ Define if you want support for SSL via GNUTLS. ])

      MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS mutt_ssl_gnutls.o"
      need_ssl=yes],
      [dnl GNUTLS not found
        AC_MSG_ERROR([could not find libgnutls])
      ])
  fi
fi
AM_CONDITIONAL(USE_SSL, test x$need_ssl = xyes)

AC_ARG_WITH(sasl, AC_HELP_STRING([--with-sasl[=PFX]], [Use Cyrus SASL 2 network security library]),
        [	
        if test "$with_sasl" != "no"
        then
          if test "$need_socket" != "yes"
          then
            AC_MSG_ERROR([SASL support is only useful with POP or IMAP support])
          fi

          if test "$with_sasl" != "yes"
          then
            CPPFLAGS="$CPPFLAGS -I$with_sasl/include"
            LDFLAGS="$LDFLAGS -L$with_sasl/lib"
          fi

          saved_LIBS="$LIBS"

          AC_CHECK_LIB(sasl2, sasl_client_init,,
            AC_MSG_ERROR([could not find libsasl2]),)

          MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS mutt_sasl.o"
          MUTTLIBS="$MUTTLIBS -lsasl2"
          LIBS="$saved_LIBS"
          AC_DEFINE(USE_SASL,1,
                  [ Define if want to use the Cyrus SASL library for POP/IMAP authentication. ])
          need_sasl=yes
        fi
        ])
AM_CONDITIONAL(USE_SASL, test x$need_sasl = xyes)

AC_ARG_WITH(idn, AC_HELP_STRING([--with-idn=[PFX]], [Use GNU libidn for domain names]),
		 [
		  if test "$with_idn" != "no" ; then
		  	if test "$with_idn" != "yes" ; then
			   CPPFLAGS="$CPPFLAGS -I$with_idn/include"
			   LDFLAGS="$LDFLAGS -L$with_idn/lib"
			fi
		  fi
		 ]
)

if test "x$with_idn" != "xno"; then
   AC_CHECK_LIB(idn, stringprep_check_version)
   AC_CHECK_FUNCS(idna_to_unicode_utf8_from_utf8 idna_to_unicode_8z8z)
   AC_CHECK_FUNCS(idna_to_ascii_from_utf8 idna_to_ascii_8z)
   AC_CHECK_FUNCS(idna_to_ascii_lz idna_to_ascii_from_locale)
fi

dnl -- end socket --

AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug], [Enable debugging support]),
        [ if test x$enableval = xyes ; then
                AC_DEFINE(DEBUG,1,[ Define to enable debugging info. ])
          fi
         ])

AC_ARG_ENABLE(flock, AC_HELP_STRING([--enable-flock], [Use flock() to lock files]),
        [if test $enableval = yes; then
                AC_DEFINE(USE_FLOCK,1, [ Define to use flock() to lock mailboxes. ])
        fi])

mutt_cv_fcntl=yes
AC_ARG_ENABLE(fcntl, AC_HELP_STRING([--disable-fcntl], [Do NOT use fcntl() to lock files]),
        [if test $enableval = no; then mutt_cv_fcntl=no; fi])

if test $mutt_cv_fcntl = yes; then
        AC_DEFINE(USE_FCNTL,1, [ Define to use fcntl() to lock folders. ])
fi

AC_MSG_CHECKING(whether struct dirent defines d_ino)
ac_cv_dirent_d_ino=no
AC_TRY_LINK([#include <dirent.h>],[struct dirent dp; (void)dp.d_ino],[ac_cv_dirent_d_ino=yes])
if test x$ac_cv_dirent_d_ino = xyes ; then
  AC_DEFINE(HAVE_DIRENT_D_INO,1,
            [Define to 1 if your system has the dirent::d_ino member])
fi
AC_MSG_RESULT($ac_cv_dirent_d_ino)

dnl This may look cumbersome -- please keep it that way, so we can
dnl quickly change the default to "yes" again.
mutt_cv_inodesort=no
AC_ARG_ENABLE(inodesort,  AC_HELP_STRING([--enable-inodesort], [Read files in maildir folders sorted by inode]),
       [if test x$enableval = xyes -a x$ac_cv_dirent_d_ino = xyes ; then mutt_cv_inodesort=yes; fi])

if test $mutt_cv_inodesort = yes; then
	AC_DEFINE(USE_INODESORT, 1, [ Define to sort files in a	maildir by inode number. ])
fi

mutt_cv_warnings=yes
AC_ARG_ENABLE(warnings, AC_HELP_STRING([--disable-warnings], [Turn off compiler warnings (not recommended)]),
[if test $enableval = no; then
        mutt_cv_warnings=no
fi])

if test x$GCC = xyes -a $mutt_cv_warnings = yes; then
        CFLAGS="-Wall -pedantic $CFLAGS"
fi

AC_ARG_ENABLE(nfs-fix, AC_HELP_STRING([--enable-nfs-fix], [Work around an NFS with broken attributes caching]),
        [if test x$enableval = xyes; then
                AC_DEFINE(NFS_ATTRIBUTE_HACK,1,
                  [Define if you have problems with mutt not detecting
                   new/old mailboxes over NFS.  Some NFS implementations
                   incorrectly cache the attributes of small files.])
        fi])

AC_ARG_ENABLE(mailtool, AC_HELP_STRING([--enable-mailtool], [Enable Sun mailtool attachments support]),
        [if test x$enableval = xyes; then
                AC_DEFINE(SUN_ATTACHMENT,1,[ Define to enable Sun mailtool attachments support. ])
        fi])

AC_ARG_ENABLE(locales-fix, AC_HELP_STRING([--enable-locales-fix], [The result of isprint() is unreliable]),
        [if test x$enableval = xyes; then
                AC_DEFINE(LOCALES_HACK,1,[ Define if the result of isprint() is unreliable. ])
        fi])

AC_ARG_WITH(exec-shell, AC_HELP_STRING([--with-exec-shell=SHELL], [Specify alternate shell (ONLY if /bin/sh is broken)]),
        [if test $withval != yes; then
                AC_DEFINE_UNQUOTED(EXECSHELL, "$withval",
                 [program to use for shell commands])
         else
                AC_DEFINE_UNQUOTED(EXECSHELL, "/bin/sh")
        fi],
        [AC_DEFINE_UNQUOTED(EXECSHELL, "/bin/sh")])

AC_ARG_ENABLE(exact-address, AC_HELP_STRING([--enable-exact-address], [Enable regeneration of email addresses]),
        [if test $enableval = yes; then
                AC_DEFINE(EXACT_ADDRESS,1,
                  [Enable exact regeneration of email addresses as parsed?
                   NOTE: this requires significant more memory when defined.])

        fi])

dnl -- start cache --
AC_ARG_ENABLE(hcache, AC_HELP_STRING([--enable-hcache], [Enable header caching]),
[if test x$enableval = xyes; then
    AC_DEFINE(USE_HCACHE, 1, [Enable header caching])
    MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS hcache.o"

    OLDCPPFLAGS="$CPPFLAGS"
    OLDLIBS="$LIBS"

    need_md5="yes"

    ac_prefer_qdbm=yes
    AC_ARG_WITH(qdbm, AC_HELP_STRING([--without-qdbm], [Don't use qdbm even if it is available]),
        ac_prefer_qdbm=$withval)
    if test x$ac_prefer_qdbm != xno; then
        CPPFLAGS="$OLDCPPFLAGS"
        LIBS="$OLDLIBS -lqdbm";
        AC_CACHE_CHECK(for vlopen, ac_cv_vlopen,[
            ac_cv_vlopen=no
            AC_TRY_LINK([#include <villa.h>],[vlopen(0,0,0);],[ac_cv_vlopen=yes])
        ])
    fi

    ac_prefer_gdbm=yes
    AC_ARG_WITH(gdbm, AC_HELP_STRING([--without-gdbm], [Don't use gdbm even if it is available]),
        ac_prefer_gdbm=$withval)
    if test x$ac_prefer_gdbm != xno -a x$ac_cv_vlopen != xyes; then
        CPPFLAGS="$OLDCPPFLAGS"
        LIBS="$OLDLIBS -lgdbm";
        AC_CACHE_CHECK(for gdbm_open, ac_cv_gdbmopen,[
            ac_cv_gdbmopen=no
            AC_TRY_LINK([#include <gdbm.h>],[gdbm_open(0,0,0,0,0);],[ac_cv_gdbmopen=yes])
        ])
    fi

    ac_bdb_prefix=yes
    AC_ARG_WITH(bdb, AC_HELP_STRING([--with-bdb[=DIR]], [Use BerkeleyDB4 if gdbm is not available]),
        ac_bdb_prefix=$withval)
    if test x$ac_bdb_prefix != xno -a x$ac_cv_gdbmopen != xyes -a x$ac_cv_vlopen != xyes; then
        test x$ac_bdb_prefix = xyes && ac_bdb_prefix="$mutt_cv_prefix /opt/csw/bdb4 /opt /usr/local /usr"
        for d in $ac_bdb_prefix; do
            bdbpfx="$bdbpfx $d"
            for v in BerkeleyDB.4.3 BerkeleyDB.4.2 BerkeleyDB.4.1; do
                bdbpfx="$bdbpfx $d/$v"
            done
        done
        BDB_VERSIONS="db-4 db4 db-4.3 db4.3 db43 db-4.2 db4.2 db42 db-4.1 db4.1 db41 db ''"
        AC_MSG_CHECKING([for BerkeleyDB > 4.0])
        for d in $bdbpfx; do
            BDB_INCLUDE_DIR=""
            BDB_LIB_DIR=""
            for v in / $BDB_VERSIONS; do
                if test -r "$d/include/$v/db.h"; then
                    BDB_INCLUDE_DIR="$d/include/$v"
                    if test -d "$d/lib/$v"; then
                        BDB_LIB_DIR="$d/lib/$v"
                        for l in `echo $BDB_VERSIONS`; do
                            CPPFLAGS="$OLDCPPFLAGS -I$BDB_INCLUDE_DIR"
                            LIBS="$OLDLIBS -L$BDB_LIB_DIR -l$l"
                            AC_TRY_LINK([
                                #include <stdlib.h>
                                #include <db.h>
                            ],[
                                DB *db = NULL;
                                db->open(db,NULL,NULL,NULL,0,0,0);
                            ],[
                                ac_cv_dbcreate=yes
                                BDB_LIB="$l"
                                break
                            ])
                        done
                        test x$ac_cv_dbcreate = xyes && break
                    fi
                fi
            done
            test x$BDB_LIB != x && break
        done
        if test x$ac_cv_dbcreate = xyes; then
            AC_MSG_RESULT(yes)
        else
            AC_MSG_RESULT(no)
        fi
    fi

    if test x$ac_cv_vlopen = xyes; then
        CPPFLAGS="$OLDCPPFLAGS"
        LIBS="$OLDLIBS -lqdbm";
        AC_DEFINE(HAVE_QDBM, 1, [QDBM Support])
    elif test x$ac_cv_gdbmopen = xyes; then
        CPPFLAGS="$OLDCPPFLAGS"
        LIBS="$OLDLIBS -lgdbm";
        AC_DEFINE(HAVE_GDBM, 1, [GDBM Support])
    elif test x$ac_cv_dbcreate = xyes; then
        CPPFLAGS="$OLDCPPFLAGS -I$BDB_INCLUDE_DIR"
        LIBS="$OLDLIBS -L$BDB_LIB_DIR -l$BDB_LIB"
        AC_DEFINE(HAVE_DB4, 1, [Sleepycat DB4 Support])
    else
        AC_MSG_ERROR([You need QDBM, GDBM or Sleepycat DB4 for hcache])
    fi
fi])
dnl -- end cache --

if test "$need_md5" = "yes"
then
        MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS md5c.o"
fi

AC_SUBST(MUTTLIBS)
AC_SUBST(MUTT_LIB_OBJECTS)
AC_SUBST(LIBIMAP)
AC_SUBST(LIBIMAPDEPS)

dnl -- iconv/gettext --

AC_ARG_ENABLE(iconv, AC_HELP_STRING([--disable-iconv], [Disable iconv support]),
        [if test x$enableval = xno ; then
                am_cv_func_iconv=no
        fi
])

MUTT_AM_GNU_GETTEXT

if test "$am_cv_func_iconv" != "yes"
then
  AC_MSG_WARN([Configuring without iconv support. See INSTALL for details])
else

AC_CHECK_HEADERS(iconv.h,
        [AC_MSG_CHECKING(whether iconv.h defines iconv_t)
         AC_EGREP_HEADER([typedef.*iconv_t],iconv.h,
                [AC_MSG_RESULT(yes)
                 AC_DEFINE(HAVE_ICONV_T_DEF, 1,
                        [Define if <iconv.h> defines iconv_t.])],
                 AC_MSG_RESULT(no))])

dnl (1) Some implementations of iconv won't convert from UTF-8 to UTF-8.
dnl (2) In glibc-2.1.2 and earlier there is a bug that messes up ob and
dnl     obl when args 2 and 3 are 0 (fixed in glibc-2.1.3).
AC_CACHE_CHECK([whether this iconv is good enough], mutt_cv_iconv_good,
        mutt_save_LIBS="$LIBS"
        LIBS="$LIBS $LIBICONV"
        AC_TRY_RUN([
#include <iconv.h>
int main()
{
  iconv_t cd;
changequote(, )dnl
  char buf[4];
changequote([, ])dnl
  char *ob;
  size_t obl;
  ob = buf, obl = sizeof(buf);
  return ((cd = iconv_open("UTF-8", "UTF-8")) != (iconv_t)(-1) &&
          (iconv(cd, 0, 0, &ob, &obl) ||
           !(ob == buf && obl == sizeof(buf)) ||
           iconv_close(cd)));
}
                ],
                mutt_cv_iconv_good=yes,
                mutt_cv_iconv_good=no,
                mutt_cv_iconv_good=yes)
        LIBS="$mutt_save_LIBS")
if test "$mutt_cv_iconv_good" = no; then
  AC_MSG_ERROR(Try using libiconv instead)
fi

dnl This is to detect implementations such as the one in glibc-2.1,
dnl which always convert exactly but return the number of characters
dnl converted instead of the number converted inexactly.
AC_CACHE_CHECK([whether iconv is non-transcribing], mutt_cv_iconv_nontrans,
        mutt_save_LIBS="$LIBS"
        LIBS="$LIBS $LIBICONV"
        AC_TRY_RUN([
#include <iconv.h>
#include <string.h>
int main()
{
  iconv_t cd;
  const char *ib;
  char *ob;
  size_t ibl, obl;
  const char *s = "\304\211";
changequote(, )dnl
  char t[3];
changequote([, ])dnl
  ib = s, ibl = 2, ob = t, obl = 3;
  return ((cd = iconv_open("UTF-8", "UTF-8")) == (iconv_t)(-1) ||
          iconv(cd, &ib, &ibl, &ob, &obl));
}
                ],
                mutt_cv_iconv_nontrans=no,
                mutt_cv_iconv_nontrans=yes,
                mutt_cv_iconv_nontrans=no)
        LIBS="$mutt_save_LIBS")
if test "$mutt_cv_iconv_nontrans" = yes; then
  AC_DEFINE(ICONV_NONTRANS, 1)
else
  AC_DEFINE(ICONV_NONTRANS, 0)
fi

CPPFLAGS="$CPPFLAGS -I\$(top_srcdir)/intl"

if test "$BUILD_INCLUDED_LIBINTL" = "yes"; then
  AC_DEFINE(HAVE_BIND_TEXTDOMAIN_CODESET,1,
          [ Define if your gettext has bind_textdomain_codeset. ])
else
  AC_CHECK_FUNCS(bind_textdomain_codeset)
fi

fi # libiconv

dnl -- locales --

AC_CHECK_HEADERS(wchar.h)

AC_CACHE_CHECK([for wchar_t], mutt_cv_wchar_t,
        AC_TRY_COMPILE([
#include <stddef.h>
#include <stdlib.h>
#ifdef HAVE_WCHAR_H
#include <wchar.h>
#endif
                ],
                [ wchar_t wc; return 0; ],
                mutt_cv_wchar_t=yes,
                mutt_cv_wchar_t=no))

if test "$mutt_cv_wchar_t" = no; then
        AC_DEFINE(wchar_t,int,[ Define to 'int' if system headers don't define. ])
fi

AC_CACHE_CHECK([for wint_t], mutt_cv_wint_t,
        AC_TRY_COMPILE([
#include <stddef.h>
#include <stdlib.h>
#ifdef HAVE_WCHAR_H
#include <wchar.h>
#endif
                ],
                [ wint_t wc; return 0; ],
                mutt_cv_wint_t=yes,
                mutt_cv_wint_t=no))

if test "$mutt_cv_wint_t" = no; then
        AC_DEFINE(wint_t,int,[ Define to 'int' if system headers don't define. ])
fi

AC_CHECK_HEADERS(wctype.h)
AC_CHECK_FUNCS(iswalnum iswalpha  iswcntrl iswdigit)
AC_CHECK_FUNCS(iswgraph iswlower iswprint iswpunct iswspace iswupper)
AC_CHECK_FUNCS(iswxdigit towupper towlower)

AC_CACHE_CHECK([for mbstate_t], mutt_cv_mbstate_t,
        AC_TRY_COMPILE([
#include <stddef.h>
#include <stdlib.h>
#ifdef HAVE_WCHAR_H
#include <wchar.h>
#endif
                ],
                [ mbstate_t s; return 0; ],
                mutt_cv_mbstate_t=yes,
                mutt_cv_mbstate_t=no))

if test "$mutt_cv_mbstate_t" = no; then
        AC_DEFINE(mbstate_t,int,[ Define to 'int' if system headers don't define. ])
fi

wc_funcs=maybe
AC_ARG_WITH(wc-funcs, AC_HELP_STRING([--without-wc-funcs], [Do not use the system's wchar_t functions]),
        wc_funcs=$withval)

if test "$wc_funcs" != yes -a "$wc_funcs" != no; then
        AC_CACHE_CHECK([for wchar_t functions], mutt_cv_wc_funcs,
                mutt_cv_wc_funcs=no
                AC_TRY_LINK([
#define _XOPEN_SOURCE 1
#include <stddef.h>
#include <stdlib.h>
#ifdef HAVE_WCTYPE_H
#include <wctype.h>
#endif
#ifdef HAVE_WCHAR_H
#include <wchar.h>
#endif],
                        [mbrtowc(0, 0, 0, 0); wctomb(0, 0); wcwidth(0);
        iswprint(0); iswspace(0); towlower(0); towupper(0); iswalnum(0)],
                        mutt_cv_wc_funcs=yes))
        wc_funcs=$mutt_cv_wc_funcs
fi

if test $wc_funcs = yes; then
        AC_DEFINE(HAVE_WC_FUNCS,1,[ Define if you are using the system's wchar_t functions. ])
else
	MUTT_LIB_OBJECTS="$MUTT_LIB_OBJECTS utf8.o wcwidth.o"
fi

AC_CACHE_CHECK([for nl_langinfo and CODESET], mutt_cv_langinfo_codeset,
  [AC_TRY_LINK([#include <langinfo.h>],
    [char* cs = nl_langinfo(CODESET);],
    mutt_cv_langinfo_codeset=yes,
    mutt_cv_langinfo_codeset=no)])
if test $mutt_cv_langinfo_codeset = yes; then
  AC_DEFINE(HAVE_LANGINFO_CODESET,1,[ Define if you have <langinfo.h> and nl_langinfo(CODESET). ])
fi

AC_CACHE_CHECK([for nl_langinfo and YESEXPR], mutt_cv_langinfo_yesexpr,
  [AC_TRY_LINK([#include <langinfo.h>],
    [char* cs = nl_langinfo(YESEXPR);],
    mutt_cv_langinfo_yesexpr=yes,
    mutt_cv_langinfo_yesexpr=no)])
if test $mutt_cv_langinfo_yesexpr = yes; then
  AC_DEFINE(HAVE_LANGINFO_YESEXPR,1,[ Define if you have <langinfo.h> and nl_langinfo(YESEXPR). ])
fi

dnl Documentation tools
have_openjade="no"
AC_PATH_PROG([OSPCAT], [ospcat], [none])
if test "$OSPCAT" != "none"
then
  AC_MSG_CHECKING([for openjade docbook stylesheets])
  dslosfile=`ospcat --public-id="-//Norman Walsh//DOCUMENT DocBook Print Stylesheet//EN"`
  DSLROOT=`echo $dslosfile | sed -n -e "s/.*SOIBASE='\(@<:@^'@:>@*\)\/catalog'.*/\1/p"`
  # ospcat may spit out an absolute path without an SOIBASE
  if test -z "$DSLROOT"
  then
    DSLROOT=`echo $dslosfile | sed -e 's|<OSFILE>\(.*\)/print/docbook.dsl|\1|'`
  fi
  if test -f $DSLROOT/print/docbook.dsl
  then
    AC_MSG_RESULT([in $DSLROOT])
    have_openjade="yes"
  else
    AC_MSG_RESULT([not found: PDF documentation will not be built.])
  fi
fi
AC_SUBST(DSLROOT)

AC_OUTPUT(Makefile intl/Makefile m4/Makefile
        po/Makefile.in doc/Makefile contrib/Makefile
        muttbug.sh
        imap/Makefile
        doc/instdoc.sh)