summaryrefslogtreecommitdiff
path: root/utils/perlbug.PL
blob: 47d23fa858f032260d52ceb31bd278657ee206a1 (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
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
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
#!/usr/local/bin/perl

use Config;
use File::Basename qw(&basename &dirname);
use Cwd;
use File::Spec::Functions;

# List explicitly here the variables you want Configure to
# generate.  Metaconfig only looks for shell variables, so you
# have to mention them as if they were shell variables, not
# %Config entries.  Thus you write
#  $startperl
# to ensure Configure will look for $Config{startperl}.
#  $perlpath

# This forces PL files to create target in same directory as PL file.
# This is so that make depend always knows where to find PL derivatives.
$origdir = cwd;
chdir dirname($0);
$file = basename($0, '.PL');
$file .= '.com' if $^O eq 'VMS';

open OUT, ">$file" or die "Can't create $file: $!";

# extract patchlevel.h information

open PATCH_LEVEL, "<" . catfile(updir, "patchlevel.h")
    or die "Can't open patchlevel.h: $!";

my $patchlevel_date = (stat PATCH_LEVEL)[9];

while (<PATCH_LEVEL>) {
    last if $_ =~ /^\s*static\s+(?:const\s+)?char.*?local_patches\[\]\s*=\s*{\s*$/;
}

if (! defined($_)) {
    warn "Warning: local_patches section not found in patchlevel.h\n";
}

my @patches;
while (<PATCH_LEVEL>) {
    last if /^\s*}/;
    next if /^\s*#/;  # preprocessor stuff
    next if /PERL_GIT_UNPUSHED_COMMITS/;    # XXX expand instead
    next if /"uncommitted-changes"/;        # XXX determine if active instead
    chomp;
    s/^\s+,?\s*"?//;
    s/"?\s*,?$//;
    s/(['\\])/\\$1/g;
    push @patches, $_ unless $_ eq 'NULL';
}
my $patch_desc = "'" . join("',\n    '", @patches) . "'";
my $patch_tags = join "", map /(\S+)/ ? "+$1 " : (), @patches;

close(PATCH_LEVEL) or die "Error closing patchlevel.h: $!";

# TO DO (prehaps): store/embed $Config::config_sh into perlbug. When perlbug is
# used, compare $Config::config_sh with the stored version. If they differ then
# append a list of individual differences to the bug report.


print "Extracting $file (with variable substitutions)\n";

# In this section, perl variables will be expanded during extraction.
# You can use $Config{...} to use Configure variables.

my $extract_version = sprintf("%vd", $^V);

print OUT <<"!GROK!THIS!";
$Config{startperl}
    eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
	if \$running_under_some_shell;

my \$config_tag1 = '$extract_version - $Config{cf_time}';

my \$patchlevel_date = $patchlevel_date;
my \$patch_tags = '$patch_tags';
my \@patches = (
    $patch_desc
);
!GROK!THIS!

# In the following, perl variables are not expanded during extraction.

print OUT <<'!NO!SUBS!';

use warnings;
use strict;
use Config;
use File::Spec;		# keep perlbug Perl 5.005 compatible
use Getopt::Std;
use File::Basename 'basename';

sub paraprint;

BEGIN {
    eval { require Mail::Send;};
    $::HaveSend = ($@ eq "");
    eval { require Mail::Util; } ;
    $::HaveUtil = ($@ eq "");
    # use secure tempfiles wherever possible
    eval { require File::Temp; };
    $::HaveTemp = ($@ eq "");
    eval { require Module::CoreList; };
    $::HaveCoreList = ($@ eq "");
};

my $Version = "1.39";

# Changed in 1.06 to skip Mail::Send and Mail::Util if not available.
# Changed in 1.07 to see more sendmail execs, and added pipe output.
# Changed in 1.08 to use correct address for sendmail.
# Changed in 1.09 to close the REP file before calling it up in the editor.
#                 Also removed some old comments duplicated elsewhere.
# Changed in 1.10 to run under VMS without Mail::Send; also fixed
#                 temp filename generation.
# Changed in 1.11 to clean up some text and removed Mail::Send deactivator.
# Changed in 1.12 to check for editor errors, make save/send distinction
#                 clearer and add $ENV{REPLYTO}.
# Changed in 1.13 to hopefully make it more difficult to accidentally
#                 send mail
# Changed in 1.14 to make the prompts a little more clear on providing
#                 helpful information. Also let file read fail gracefully.
# Changed in 1.15 to add warnings to stop people using perlbug for non-bugs.
#                 Also report selected environment variables.
# Changed in 1.16 to include @INC, and allow user to re-edit if no changes.
# Changed in 1.17 Win32 support added.  GSAR 97-04-12
# Changed in 1.18 add '-ok' option for reporting build success. CFR 97-06-18
# Changed in 1.19 '-ok' default not '-v'
#                 add local patch information
#                 warn on '-ok' if this is an old system; add '-okay'
# Changed in 1.20 Added patchlevel.h reading and version/config checks
# Changed in 1.21 Added '-nok' for reporting build failure DFD 98-05-05
# Changed in 1.22 Heavy reformatting & minor bugfixes HVDS 98-05-10
# Changed in 1.23 Restore -ok(ay): say 'success'; don't prompt
# Changed in 1.24 Added '-F<file>' to save report HVDS 98-07-01
# Changed in 1.25 Warn on failure to open save file. HVDS 98-07-12
# Changed in 1.26 Don't require -t STDIN for -ok. HVDS 98-07-15
# Changed in 1.27 Added Mac OS and File::Spec support CNANDOR 99-07-27
# Changed in 1.28 Additional questions for Perlbugtron RFOLEY 20.03.2000
# Changed in 1.29 Perlbug(tron): auto(-ok), short prompts RFOLEY 05-05-2000
# Changed in 1.30 Added warnings on failure to open files MSTEVENS 13-07-2000
# Changed in 1.31 Add checks on close().Fix my $var unless. TJENNESS 26-07-2000
# Changed in 1.32 Use File::Spec->tmpdir TJENNESS 20-08-2000
# Changed in 1.33 Don't require -t STDOUT for -ok.
# Changed in 1.34 Added Message-Id RFOLEY 18-06-2002 
# Changed in 1.35 Use File::Temp (patch from Solar Designer) NWCLARK 28-02-2004
# Changed in 1.36 Initial Module::CoreList support Alexandr Ciornii 11-07-2007
# Changed in 1.37 Killed some string evals, rewrote most prose JESSE 2008-06-08
# Changed in 1.38 Actually enforce the CoreList check,
#                 Record the module the user enters if they do so
#                 Refactor prompts to use common code           JESSE 2008-06-08
# Changed in 1.39 Trap mail sending failures (simple ones) so   JESSE 2008-06-08
#                 users might be able to recover their bug reports
#                 Refactor mail sending routines
#                 Unify message building code
#                 Unify message header building
#                 Fix "module" prompting to not squish "category" prompting 
#                 use warnings; (except 'once' warnings)
#                 Unified report fingerprint/change detection code
#                 Removed some labeled 'gotos'
#TODO:
#       make sure failure (transmission-wise) of Mail::Send is accounted for.
#       (This may work now. Unsure of the original author's issue -JESSE 2008-06-08)
#       - Test -b option

my( $file, $usefile, $cc, $address, $bugaddress, $testaddress, $thanksaddress,
    $filename, $messageid, $domain, $subject, $from, $verbose, $ed, $outfile,
    $fh, $me, $body, $andcc, %REP, $ok, $thanks, $progname,
    $Is_MSWin32, $Is_Linux, $Is_VMS, $Is_OpenBSD,
    $report_about_module, $category, $severity,
    %opt,
);

my $perl_version = $^V ? sprintf("%vd", $^V) : $];

my $config_tag2 = "$perl_version - $Config{cf_time}";

Init();

if ($opt{h}) { Help(); exit; }
if ($opt{d}) { Dump(*STDOUT); exit; }
if (!-t STDIN && !($ok and not $opt{n})) {
    paraprint <<"EOF";
Please use $progname interactively. If you want to
include a file, you can use the -f switch.
EOF
    die "\n";
}

Query();
Edit() unless $usefile || ($ok and not $opt{n});
NowWhat();
if ($outfile) {
    save_message_to_disk($outfile);
} else {
    Send();
    if ($thanks) {
	print "\nThank you for taking the time to send a thank-you message!\n\n";
    } else {
	print "\nThank you for taking the time to file a bug report!\n\n";
    }
}

exit;

sub ask_for_alternatives { # (category|severity)
    my $name = shift;
    my %alts = (
	'category' => {
	    'default' => 'core',
	    'ok'      => 'install',
	    # Inevitably some of these will end up in RT whatever we do:
	    'thanks'  => 'thanks',
	    'opts'    => [qw(core docs install library utilities)], # patch, notabug
	},
	'severity' => {
	    'default' => 'low',
	    'ok'      => 'none',
	    'thanks'  => 'none',
	    'opts'    => [qw(critical high medium low wishlist none)], # zero
	},
    );
    die "Invalid alternative ($name) requested\n" unless grep(/^$name$/, keys %alts);
    my $alt = "";
    my $what = $ok || $thanks;
    if ($what) {
	$alt = $alts{$name}{$what};
    } else {
 	my @alts = @{$alts{$name}{'opts'}};
    print "\n\n";
	paraprint <<EOF;
Please pick a $name from the following list:

    @alts
EOF
	my $err = 0;
	do {
	    if ($err++ > 5) {
		die "Invalid $name: aborting.\n";
	    }
        $alt = _prompt('', "\u$name", $alts{$name}{'default'});
		$alt ||= $alts{$name}{'default'};
	} while !((($alt) = grep(/^$alt/i, @alts)));
    }
    lc $alt;
}

sub Init {
    # -------- Setup --------

    $Is_MSWin32 = $^O eq 'MSWin32';
    $Is_VMS = $^O eq 'VMS';
    $Is_Linux = lc($^O) eq 'linux';
    $Is_OpenBSD = lc($^O) eq 'openbsd';

    if (!getopts("Adhva:s:b:f:F:r:e:SCc:to:n:T", \%opt)) { Help(); exit; };

    # This comment is needed to notify metaconfig that we are
    # using the $perladmin, $cf_by, and $cf_time definitions.

    # -------- Configuration ---------

    # perlbug address
    $bugaddress = 'perlbug@perl.org';

    # Test address
    $testaddress = 'perlbug-test@perl.org';

    # Thanks address
    $thanksaddress = 'perl-thanks@perl.org';

    if (basename ($0) =~ /^perlthanks/i) {
	# invoked as perlthanks
	$opt{T} = 1;
	$opt{C} = 1; # don't send a copy to the local admin
    }

    if ($opt{T}) {
	$thanks = 'thanks';
    }
    
    $progname = $thanks ? 'perlthanks' : 'perlbug';
    # Target address
    $address = $opt{a} || ($opt{t} ? $testaddress
			    : $thanks ? $thanksaddress : $bugaddress);

    # Users address, used in message and in From and Reply-To headers
    $from = $opt{r} || "";

    # Include verbose configuration information
    $verbose = $opt{v} || 0;

    # Subject of bug-report message
    $subject = $opt{s} || "";

    # Send a file
    $usefile = ($opt{f} || 0);

    # File to send as report
    $file = $opt{f} || "";

    # File to output to
    $outfile = $opt{F} || "";

    # Body of report
    $body = $opt{b} || "";
	
    # Editor
    $ed = $opt{e} || $ENV{VISUAL} || $ENV{EDITOR} || $ENV{EDIT}
	|| ($Is_VMS && "edit/tpu")
	|| ($Is_MSWin32 && "notepad")
	|| "vi";

    # Not OK - provide build failure template by finessing OK report
    if ($opt{n}) {
	if (substr($opt{n}, 0, 2) eq 'ok' )	{
	    $opt{o} = substr($opt{n}, 1);
	} else {
	    Help();
	    exit();
	}
    }

    # OK - send "OK" report for build on this system
    $ok = '';
    if ($opt{o}) {
	if ($opt{o} eq 'k' or $opt{o} eq 'kay') {
	    my $age = time - $patchlevel_date;
	    if ($opt{o} eq 'k' and $age > 60 * 24 * 60 * 60 ) {
		my $date = localtime $patchlevel_date;
		print <<"EOF";
"perlbug -ok" and "perlbug -nok" do not report on Perl versions which
are more than 60 days old.  This Perl version was constructed on
$date.  If you really want to report this, use
"perlbug -okay" or "perlbug -nokay".
EOF
		exit();
	    }
	    # force these options
	    unless ($opt{n}) {
		$opt{S} = 1; # don't prompt for send
		$opt{b} = 1; # we have a body
		$body = "Perl reported to build OK on this system.\n";
	    }
	    $opt{C} = 1; # don't send a copy to the local admin
	    $opt{s} = 1; # we have a subject line
	    $subject = ($opt{n} ? 'Not ' : '')
		    . "OK: perl $perl_version ${patch_tags}on"
		    ." $::Config{'archname'} $::Config{'osvers'} $subject";
	    $ok = 'ok';
	} else {
	    Help();
	    exit();
	}
    }

    # Possible administrator addresses, in order of confidence
    # (Note that cf_email is not mentioned to metaconfig, since
    # we don't really want it. We'll just take it if we have to.)
    #
    # This has to be after the $ok stuff above because of the way
    # that $opt{C} is forced.
    $cc = $opt{C} ? "" : (
	$opt{c} || $::Config{'perladmin'}
	|| $::Config{'cf_email'} || $::Config{'cf_by'}
    );

    if ($::HaveUtil) {
		$domain = Mail::Util::maildomain();
    } elsif ($Is_MSWin32) {
		$domain = $ENV{'USERDOMAIN'};
    } else {
		require Sys::Hostname;
		$domain = Sys::Hostname::hostname();
    }

    # Message-Id - rjsf
    $messageid = "<$::Config{'version'}_${$}_".time."\@$domain>"; 

    # My username
    $me = $Is_MSWin32 ? $ENV{'USERNAME'}
	    : $^O eq 'os2' ? $ENV{'USER'} || $ENV{'LOGNAME'}
	    : eval { getpwuid($<) };	# May be missing

    $from = $::Config{'cf_email'}
       if !$from && $::Config{'cf_email'} && $::Config{'cf_by'} && $me &&
               ($me eq $::Config{'cf_by'});
} # sub Init

sub Query {
    # Explain what perlbug is
    unless ($ok) {
	if ($thanks) {
	    paraprint <<'EOF';
This program provides an easy way to send a thank-you message back to the
authors and maintainers of perl.

If you wish to submit a bug report, please run it without the -T flag
(or run the program perlbug rather than perlthanks)
EOF
	} else {
	    paraprint <<"EOF";
This program provides an easy way to create a message reporting a
bug in the core perl distribution (along with tests or patches)
to the volunteers who maintain perl at $address.  To send a thank-you
note to $thanksaddress instead of a bug report, please run 'perlthanks'.

Please do not use $0 to send test messages, test whether perl
works, or to report bugs in perl modules from CPAN.

For help using perl, try posting to the Usenet newsgroup 
comp.lang.perl.misc.
EOF
	}
    }

    # Prompt for subject of message, if needed
    
    if ($subject && TrivialSubject($subject)) {
	$subject = '';
    }

    unless ($subject) {
	    print 
"First of all, please provide a subject for the message.\n";
	if ( not $thanks)  {
	    paraprint <<EOF;
This should be a concise description of your bug or problem
which will help the volunteers working to improve perl to categorize
and resolve the issue.  Be as specific and descriptive as
you can. A subject like "perl bug" or "perl problem" will make it
much less likely that your issue gets the attention it deserves.
EOF
	}

	my $err = 0;
	do {
        $subject = _prompt('','Subject');
	    if ($err++ == 5) {
		if ($thanks) {
		    $subject = 'Thanks for Perl';
		} else {
		    die "Aborting.\n";
		}
	    }
	} while (TrivialSubject($subject));
    }

    # Prompt for return address, if needed
    unless ($opt{r}) {
	# Try and guess return address
	my $guess;

	$guess = $ENV{'REPLY-TO'} || $ENV{'REPLYTO'} || $ENV{'EMAIL'}
	    || $from || '';

	unless ($guess) {
		# move $domain to where we can use it elsewhere	
        if ($domain) {
		if ($Is_VMS && !$::Config{'d_socket'}) {
		    $guess = "$domain\:\:$me";
		} else {
		    $guess = "$me\@$domain" if $domain;
		}
	    }
	}

	if ($guess) {
	    unless ($ok) {
		paraprint <<EOF;
Perl's developers may need your email address to contact you for
further information about your issue or to inform you when it is
resolved.  If the default shown is not your email address, please
correct it.
EOF
	    }
	} else {
	    paraprint <<EOF;
Please enter your full internet email address so that Perl's
developers can contact you with questions about your issue or to
inform you that it has been resolved.
EOF
	}

	if ($ok && $guess) {
	    # use it
	    $from = $guess;
	} else {
	    # verify it
        $from = _prompt('','Your address',$guess);
	    $from = $guess if $from eq '';
	}
    }

    if ($from eq $cc or $me eq $cc) {
	# Try not to copy ourselves
	$cc = "yourself";
    }

    # Prompt for administrator address, unless an override was given
    if( !$opt{C} and !$opt{c} ) {
	my $description =  <<EOF;
$0 can send a copy of this report to your local perl
administrator.  If the address below is wrong, please correct it,
or enter 'none' or 'yourself' to not send a copy.
EOF
	my $entry = _prompt($description, "Local perl administrator", $cc);

	if ($entry ne "") {
	    $cc = $entry;
	    $cc = '' if $me eq $cc;
	}
    }

    $cc = '' if $cc =~ /^(none|yourself|me|myself|ourselves)$/i;
    if ($cc) { 
        $andcc = " and $cc" 
    } else {
        $andcc = ''
    }

    # Prompt for editor, if no override is given
editor:
    unless ($opt{e} || $opt{f} || $opt{b}) {

    my $description;

	chomp (my $common_end = <<"EOF");
You will probably want to use a text editor to enter the body of
your report. If "$ed" is the editor you want to use, then just press
Enter, otherwise type in the name of the editor you would like to
use.

If you have already composed the body of your report, you may enter
"file", and $0 will prompt you to enter the name of the file
containing your report.
EOF

	if ($thanks) {
	    $description = <<"EOF";
It's now time to compose your thank-you message.

Some information about your local perl configuration will automatically
be included at the end of your message, because we're curious about
the different ways that people build and use perl. If you'd rather
not share this information, you're welcome to delete it.

$common_end
EOF
	} else {
	    $description =  <<"EOF";
It's now time to compose your bug report. Try to make the report
concise but descriptive. Please include any detail which you think
might be relevant or might help the volunteers working to improve
perl. If you are reporting something that does not work as you think
it should, please try to include examples of the actual result and of
what you expected.

Some information about your local perl configuration will automatically
be included at the end of your report. If you are using an unusual
version of perl, it would be useful if you could confirm that you
can replicate the problem on a standard build of perl as well.

$common_end
EOF
	}

    my $entry = _prompt($description, "Editor", $ed);
	$usefile = 0;
	if ($entry eq "file") {
	    $usefile = 1;
	} elsif ($entry ne "") {
	    $ed = $entry;
	}
    }
    if ($::HaveCoreList && !$ok && !$thanks) {
	my $description =  <<EOF;
If your bug is about a Perl module rather than a core language
feature, please enter its name here. If it's not, just hit Enter
to skip this question.
EOF

    my $entry = '';
	while ($entry eq '') {
        $entry = _prompt($description, 'Module');
	    my $first_release = Module::CoreList->first_release($entry);
	    if ($entry and not $first_release) {
		paraprint <<EOF;
$entry is not a "core" Perl module. Please check that you entered
its name correctly. If it is correct, quit this program, try searching
for $entry on http://rt.cpan.org, and report your issue there.
EOF

            $entry = '';
	} elsif (my $bug_tracker = $Module::CoreList::bug_tracker{$entry}) {
		paraprint <<"EOF";
$entry included with core Perl is copied directly from the CPAN distribution.
Please report bugs in $entry directly to its maintainers using $bug_tracker
EOF
            $entry = '';
        } elsif ($entry) {
	        $category ||= 'library';
	        $report_about_module = $entry;
            last;
        } else {
            last;
        }
	}
    }

    # Prompt for category of bug
    $category ||= ask_for_alternatives('category');

    # Prompt for severity of bug
    $severity ||= ask_for_alternatives('severity');

    # Generate scratch file to edit report in
    $filename = filename();

    # Prompt for file to read report from, if needed
    if ($usefile and !$file) {
filename:
	my $description = <<EOF;
What is the name of the file that contains your report?
EOF
	my $entry = _prompt($description, "Filename");

	if ($entry eq "") {
	    paraprint <<EOF;
It seems you didn't enter a filename. Please choose to use a text
editor or enter a filename.
EOF
	    goto editor;
	}

	unless (-f $entry and -r $entry) {
	    paraprint <<EOF;
'$entry' doesn't seem to be a readable file.  You may have mistyped
its name or may not have permission to read it.

If you don't want to use a file as the content of your report, just
hit Enter and you'll be able to select a text editor instead.
EOF
	    goto filename;
	}
	$file = $entry;
    }

    # Generate report
    open(REP,">$filename") or die "Unable to create report file '$filename': $!\n";
    my $reptype = !$ok ? ($thanks ? 'thank-you' : 'bug')
	: $opt{n} ? "build failure" : "success";

    print REP <<EOF;
This is a $reptype report for perl from $from,
generated with the help of perlbug $Version running under perl $perl_version.

EOF

    if ($body) {
	print REP $body;
    } elsif ($usefile) {
	open(F, "<$file")
		or die "Unable to read report file from '$file': $!\n";
	while (<F>) {
	    print REP $_
	}
	close(F) or die "Error closing '$file': $!";
    } else {
	if ($thanks) {
	    print REP <<'EOF';

-----------------------------------------------------------------
[Please enter your thank-you message here]



[You're welcome to delete anything below this line]
-----------------------------------------------------------------
EOF
	} else {
	    print REP <<'EOF';

-----------------------------------------------------------------
[Please describe your issue here]



[Please do not change anything below this line]
-----------------------------------------------------------------
EOF
	}
    }
    Dump(*REP);
    close(REP) or die "Error closing report file: $!";

    # Set up an initial report fingerprint so we can compare it later
    _fingerprint_lines_in_report();

} # sub Query

sub Dump {
    local(*OUT) = @_;

    # these won't have been set if run with -d
    $category ||= 'core';
    $severity ||= 'low';

    print OUT <<EFF;
---
Flags:
    category=$category
    severity=$severity
EFF

    if ($report_about_module ) { 
        print OUT <<EFF;
    module=$report_about_module
EFF
    }
    if ($opt{A}) {
	print OUT <<EFF;
    ack=no
EFF
    }
    print OUT <<EFF;
---
EFF
    print OUT "This perlbug was built using Perl $config_tag1\n",
	    "It is being executed now by  Perl $config_tag2.\n\n"
	if $config_tag2 ne $config_tag1;

    print OUT <<EOF;
Site configuration information for perl $perl_version:

EOF
    if ($::Config{cf_by} and $::Config{cf_time}) {
	print OUT "Configured by $::Config{cf_by} at $::Config{cf_time}.\n\n";
    }
    print OUT Config::myconfig;

    if (@patches) {
	print OUT join "\n    ", "Locally applied patches:", @patches;
	print OUT "\n";
    };

    print OUT <<EOF;

---
\@INC for perl $perl_version:
EOF
    for my $i (@INC) {
	print OUT "    $i\n";
    }

    print OUT <<EOF;

---
Environment for perl $perl_version:
EOF
    my @env =
        qw(PATH LD_LIBRARY_PATH LANG PERL_BADLANG SHELL HOME LOGDIR LANGUAGE);
    push @env, $Config{ldlibpthname} if $Config{ldlibpthname} ne '';
    push @env, grep /^(?:PERL|LC_|LANG|CYGWIN)/, keys %ENV;
    my %env;
    @env{@env} = @env;
    for my $env (sort keys %env) {
	print OUT "    $env",
		exists $ENV{$env} ? "=$ENV{$env}" : ' (unset)',
		"\n";
    }
    if ($verbose) {
	print OUT "\nComplete configuration data for perl $perl_version:\n\n";
	my $value;
	foreach (sort keys %::Config) {
	    $value = $::Config{$_};
	    $value = '' unless defined $value;
	    $value =~ s/'/\\'/g;
	    print OUT "$_='$value'\n";
	}
    }
} # sub Dump

sub Edit {
    # Edit the report
    if ($usefile || $body) {
	my $description = "Please make sure that the name of the editor you want to use is correct.";
	my $entry = _prompt($description, 'Editor', $ed);
	$ed = $entry unless $entry eq '';
    }

    _edit_file($ed);
}

sub _edit_file {
    my $editor = shift;

    my $report_written = 0;

    while ( !$report_written ) {
        my $exit_status = system("$editor $filename");
        if ($exit_status) {
            my $desc = <<EOF;
The editor you chose ('$editor') could not be run!

If you mistyped its name, please enter it now, otherwise just press Enter.
EOF
            my $entry = _prompt( $desc, 'Editor', $editor );
            if ( $entry ne "" ) {
                $editor = $entry;
                next;
            } else {
                paraprint <<EOF;
You may want to save your report to a file, so you can edit and
mail it later.
EOF
                return;
            }
        }
        return if ( $ok and not $opt{n} ) || $body;

        # Check that we have a report that has some, eh, report in it.

        unless ( _fingerprint_lines_in_report() ) {
            my $description = <<EOF;
It looks like you didn't enter a report. You may [r]etry your edit
or [c]ancel this report.
EOF
            my $action = _prompt( $description, "Action (Retry/Cancel) " );
            if ( $action =~ /^[re]/i ) {    # <R>etry <E>dit
                next;
            } elsif ( $action =~ /^[cq]/i ) {    # <C>ancel, <Q>uit
                Cancel();                        # cancel exits
            }
        }
        # Ok. the user did what they needed to;
        return;

    }
}


sub Cancel {
    1 while unlink($filename);  # remove all versions under VMS
    print "\nQuitting without sending your message.\n";
    exit(0);
}

sub NowWhat {
    # Report is done, prompt for further action
    if( !$opt{S} ) {
	while(1) {
	    my $menu = <<EOF;


You have finished composing your message. At this point, you have 
a few options. You can:

    * [Se]nd the message to $address$andcc, 
    * [D]isplay the message on the screen,
    * [R]e-edit the message
    * Display or change the message's [su]bject
    * Save the message to a [f]ile to mail at another time
    * [Q]uit without sending a message

EOF
      retry:
        print $menu;
	    my $action =  _prompt('', "Action (Send/Display/Edit/Subject/Save to File)");;
        print "\n";
	    if ($action =~ /^(f|sa)/i) { # <F>ile/<Sa>ve
            if ( SaveMessage() ) { exit }
	    } elsif ($action =~ /^(d|l|sh)/i ) { # <D>isplay, <L>ist, <Sh>ow
		# Display the message
		open(REP, "<$filename") or die "Couldn't open file '$filename': $!\n";
		while (<REP>) { print $_ }
		close(REP) or die "Error closing report file '$filename': $!";
	    } elsif ($action =~ /^su/i) { # <Su>bject
		my $reply = _prompt( "Subject: $subject", "If the above subject is fine, press Enter. Otherwise, type a replacement now\nSubject");
		if ($reply ne '') {
		    unless (TrivialSubject($reply)) {
			$subject = $reply;
			print "Subject: $subject\n";
		    }
		}
	    } elsif ($action =~ /^se/i) { # <S>end
		# Send the message
		my $reply =  _prompt( "Are you certain you want to send this message?", 'Please type "yes" if you are','no');
		if ($reply =~ /^yes$/) {
		    last;
		} else {
		    paraprint <<EOF;
You didn't type "yes", so your message has not yet been sent.
EOF
		}
	    } elsif ($action =~ /^[er]/i) { # <E>dit, <R>e-edit
		# edit the message
		Edit();
	    } elsif ($action =~ /^[qc]/i) { # <C>ancel, <Q>uit
		Cancel();
	    } elsif ($action =~ /^s/i) {
		paraprint <<EOF;
The command you entered was ambiguous. Please type "send", "save" or "subject".
EOF
	    }
	}
    }
} # sub NowWhat

sub TrivialSubject {
    my $subject = shift;
    if ($subject =~
	/^(y(es)?|no?|help|perl( (bug|problem))?|bug|problem)$/i ||
	length($subject) < 4 ||
	$subject !~ /\s/) {
	print "\nThe subject you entered wasn't very descriptive. Please try again.\n\n";
        return 1;
    } else {
	return 0;
    }
}

sub SaveMessage {
    my $file_save = $outfile || "$progname.rep";
    my $file = _prompt( '', "Name of file to save message in", $file_save );
    save_message_to_disk($file) || return undef;
    print "\n";
    paraprint <<EOF;
A copy of your message has been saved in '$file' for you to
send to '$address' with your normal mail client.
EOF
}

sub Send {

    # Message has been accepted for transmission -- Send the message

    # on linux certain "mail" implementations won't accept the subject
    # as "~s subject" and thus the Subject header will be corrupted
    # so don't use Mail::Send to be safe
    eval {
        if ( $::HaveSend && !$Is_Linux && !$Is_OpenBSD ) {
            _send_message_mailsend();
        } elsif ($Is_VMS) {
            _send_message_vms();
        } else {
            _send_message_sendmail();
        }
    };

    if ( my $error = $@ ) {
        paraprint <<EOF;
$0 has detected an error while trying to send your message: $error.

Your message may not have been sent. You will now have a chance to save a copy to disk.
EOF
        SaveMessage();
        return;
    }

    1 while unlink($filename);    # remove all versions under VMS
}    # sub Send

sub Help {
    print <<EOF;

This program is designed to help you generate and send bug reports
(and thank-you notes) about perl5 and the modules which ship with it.

In most cases, you can just run "$0" interactively from a command
line without any special arguments and follow the prompts.

Advanced usage:

$0  [-v] [-a address] [-s subject] [-b body | -f inpufile ] [ -F outputfile ]
    [-r returnaddress] [-e editor] [-c adminaddress | -C] [-S] [-t] [-h]
$0  [-v] [-r returnaddress] [-A] [-ok | -okay | -nok | -nokay]


Options:

  -v    Include Verbose configuration data in the report
  -f    File containing the body of the report. Use this to
        quickly send a prepared message.
  -F    File to output the resulting mail message to, instead of mailing.
  -S    Send without asking for confirmation.
  -a    Address to send the report to. Defaults to '$address'.
  -c    Address to send copy of report to. Defaults to '$cc'.
  -C    Don't send copy to administrator.
  -s    Subject to include with the message. You will be prompted
        if you don't supply one on the command line.
  -b    Body of the report. If not included on the command line, or
        in a file with -f, you will get a chance to edit the message.
  -r    Your return address. The program will ask you to confirm
        this if you don't give it here.
  -e    Editor to use.
  -t    Test mode. The target address defaults to '$testaddress'.
  -T    Thank-you mode. The target address defaults to '$thanksaddress'.
  -d    Data mode.  This prints out your configuration data, without mailing
        anything. You can use this with -v to get more complete data.
  -A    Don't send a bug received acknowledgement to the return address.
  -ok   Report successful build on this system to perl porters
        (use alone or with -v). Only use -ok if *everything* was ok:
        if there were *any* problems at all, use -nok.
  -okay As -ok but allow report from old builds.
  -nok  Report unsuccessful build on this system to perl porters
        (use alone or with -v). You must describe what went wrong
        in the body of the report which you will be asked to edit.
  -nokay As -nok but allow report from old builds.
  -h    Print this help message.

EOF
}

sub filename {
    if ($::HaveTemp) {
	# Good. Use a secure temp file
	my ($fh, $filename) = File::Temp::tempfile(UNLINK => 1);
	close($fh);
	return $filename;
    } else {
	# Bah. Fall back to doing things less securely.
	my $dir = File::Spec->tmpdir();
	$filename = "bugrep0$$";
	$filename++ while -e File::Spec->catfile($dir, $filename);
	$filename = File::Spec->catfile($dir, $filename);
    }
}

sub paraprint {
    my @paragraphs = split /\n{2,}/, "@_";
    for (@paragraphs) {   # implicit local $_
	s/(\S)\s*\n/$1 /g;
	write;
	print "\n";
    }
}

sub _prompt {
    my ($explanation, $prompt, $default) = (@_);
    if ($explanation) {
        print "\n\n";
        paraprint $explanation;
    }
    print $prompt. ($default ? " [$default]" :''). ": ";
	my $result = scalar(<>);
    chomp($result);
	$result =~ s/^\s*(.*?)\s*$/$1/s;
    if ($default && $result eq '') {
        return $default;
    } else {
        return $result;
    }
}

sub _build_header {
    my %attr = (@_);

    my $head = '';
    for my $header (keys %attr) {
        $head .= "$header: ".$attr{$header}."\n";
    }
    return $head;
}

sub _message_headers {
    my %headers = ( To => $address, Subject => $subject );
    $headers{'Cc'}         = $cc        if ($cc);
    $headers{'Message-Id'} = $messageid if ($messageid);
    $headers{'Reply-To'}   = $from      if ($from);
    $headers{'From'}       = $from      if ($from);
    return \%headers;
}

sub build_complete_message {
    my $content = _build_header(%{_message_headers()}) . "\n\n";
    open( REP, "<$filename" ) or die "Couldn't open file '$filename': $!\n";
    while (<REP>) { $content .= $_; }
    close(REP) or die "Error closing report file '$filename': $!";
    return $content;
}

sub save_message_to_disk {
    my $file = shift;

	    open OUTFILE, ">$file" or do { warn  "Couldn't open '$file': $!\n"; return undef};
        print OUTFILE build_complete_message();
        close(OUTFILE) or do { warn  "Error closing $file: $!"; return undef };
	    print "\nMessage saved.\n";
        return 1;
}

sub _send_message_vms {
    if (   ( $address =~ /@/ and $address !~ /^\w+%"/ )
        or ( $cc =~ /@/ and $cc !~ /^\w+%"/ ) ) {
        my $prefix;
        foreach ( qw[ IN MX SMTP UCX PONY WINS ], '' ) {
            $prefix = "$_%", last if $ENV{"MAIL\$PROTOCOL_$_"};
        }
        $address = qq[${prefix}"$address"] unless $address =~ /^\w+%"/;
        $cc = qq[${prefix}"$cc"] unless !$cc || $cc =~ /^\w+%"/;
    }
    $subject =~ s/"/""/g;
    $address =~ s/"/""/g;
    $cc      =~ s/"/""/g;
    my $sts = system(qq[mail/Subject="$subject" $filename. "$address","$cc"]);
    if ($sts) {
        die "Can't spawn off mail (leaving bug report in $filename): $sts";
    }
}

sub _send_message_mailsend {
    my $msg = Mail::Send->new();
    my %headers = %{_message_headers()};
    for my $key ( keys %headers) {
        $msg->add($key => $headers{$key});
    }

    $fh = $msg->open;
    open(REP, "<$filename") or die "Couldn't open '$filename': $!\n";
    while (<REP>) { print $fh $_ }
    close(REP) or die "Error closing $filename: $!";
    $fh->close or die "Error sending mail: $!";

    print "\nMessage sent.\n";
}

sub _probe_for_sendmail {
    my $sendmail = "";
    for (qw(/usr/lib/sendmail /usr/sbin/sendmail /usr/ucblib/sendmail)) {
        $sendmail = $_, last if -e $_;
    }
    if ( $^O eq 'os2' and $sendmail eq "" ) {
        my $path = $ENV{PATH};
        $path =~ s:\\:/:;
        my @path = split /$Config{'path_sep'}/, $path;
        for (@path) {
            $sendmail = "$_/sendmail",     last if -e "$_/sendmail";
            $sendmail = "$_/sendmail.exe", last if -e "$_/sendmail.exe";
        }
    }
    return $sendmail;
}

sub _send_message_sendmail {
    my $sendmail = _probe_for_sendmail();
    unless ($sendmail) {
        my $message_start = !$Is_Linux && !$Is_OpenBSD ? <<'EOT' : <<'EOT';
It appears that there is no program which looks like "sendmail" on
your system and that the Mail::Send library from CPAN isn't available.
EOT
It appears that there is no program which looks like "sendmail" on
your system.
EOT
        paraprint(<<"EOF"), die "\n";
$message_start
Because of this, there's no easy way to automatically send your
message.

A copy of your message has been saved in '$filename' for you to
send to '$address' with your normal mail client.
EOF
    }

    open( SENDMAIL, "|-", $sendmail, "-t", "-oi", "-f", $from )
        || die "'|$sendmail -t -oi -f $from' failed: $!";
    print SENDMAIL build_complete_message();
    if ( close(SENDMAIL) ) {
        print "\nMessage sent\n";
    } else {
        warn "\nSendmail returned status '", $? >> 8, "'\n";
    }
}



# a strange way to check whether any significant editing
# has been done: check whether any new non-empty lines
# have been added.

sub _fingerprint_lines_in_report {
    my $new_lines = 0;
    # read in the report template once so that
    # we can track whether the user does any editing.
    # yes, *all* whitespace is ignored.

    open(REP, "<$filename") or die "Unable to open report file '$filename': $!\n";
    while (my $line = <REP>) {
        $line =~ s/\s+//g;
        $new_lines++ if (!$REP{$line});

    }
    close(REP) or die "Error closing report file '$filename': $!";
    # returns the number of lines with content that wasn't there when last we looked
    return $new_lines;
}



format STDOUT =
^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ~~
$_
.

__END__

=head1 NAME

perlbug - how to submit bug reports on Perl

=head1 SYNOPSIS

B<perlbug>

B<perlbug> S<[ B<-v> ]> S<[ B<-a> I<address> ]> S<[ B<-s> I<subject> ]>
S<[ B<-b> I<body> | B<-f> I<inputfile> ]> S<[ B<-F> I<outputfile> ]>
S<[ B<-r> I<returnaddress> ]>
S<[ B<-e> I<editor> ]> S<[ B<-c> I<adminaddress> | B<-C> ]>
S<[ B<-S> ]> S<[ B<-t> ]>  S<[ B<-d> ]>  S<[ B<-A> ]>  S<[ B<-h> ]> S<[ B<-T> ]>

B<perlbug> S<[ B<-v> ]> S<[ B<-r> I<returnaddress> ]>
 S<[ B<-A> ]> S<[ B<-ok> | B<-okay> | B<-nok> | B<-nokay> ]>

B<perlthanks>

=head1 DESCRIPTION


This program is designed to help you generate and send bug reports
(and thank-you notes) about perl5 and the modules which ship with it.

In most cases, you can just run it interactively from a command
line without any special arguments and follow the prompts.

If you have found a bug with a non-standard port (one that was not
part of the I<standard distribution>), a binary distribution, or a
non-core module (such as Tk, DBI, etc), then please see the
documentation that came with that distribution to determine the
correct place to report bugs.

If you are unable to send your report using B<perlbug> (most likely
because your system doesn't have a way to send mail that perlbug
recognizes), you may be able to use this tool to compose your report
and save it to a file which you can then send to B<perlbug@perl.org>
using your regular mail client.

In extreme cases, B<perlbug> may not work well enough on your system
to guide you through composing a bug report. In those cases, you
may be able to use B<perlbug -d> to get system configuration
information to include in a manually composed bug report to
B<perlbug@perl.org>.


When reporting a bug, please run through this checklist:

=over 4

=item What version of Perl you are running?

Type C<perl -v> at the command line to find out.

=item Are you running the latest released version of perl?

Look at http://www.perl.org/ to find out.  If you are not using the
latest released version, please try to replicate your bug on the
latest stable release.

Note that reports about bugs in old versions of Perl, especially
those which indicate you haven't also tested the current stable
release of Perl, are likely to receive less attention from the
volunteers who build and maintain Perl than reports about bugs in
the current release.

This tool isn't appropriate for reporting bugs in any version
prior to Perl 5.0.

=item Are you sure what you have is a bug?

A significant number of the bug reports we get turn out to be
documented features in Perl.  Make sure the issue you've run into
isn't intentional by glancing through the documentation that comes
with the Perl distribution.

Given the sheer volume of Perl documentation, this isn't a trivial
undertaking, but if you can point to documentation that suggests
the behaviour you're seeing is I<wrong>, your issue is likely to
receive more attention. You may want to start with B<perldoc>
L<perltrap> for pointers to common traps that new (and experienced)
Perl programmers run into.

If you're unsure of the meaning of an error message you've run
across, B<perldoc> L<perldiag> for an explanation.  If the message
isn't in perldiag, it probably isn't generated by Perl.  You may
have luck consulting your operating system documentation instead.

If you are on a non-UNIX platform B<perldoc> L<perlport>, as some
features may be unimplemented or work differently.

You may be able to figure out what's going wrong using the Perl
debugger.  For information about how to use the debugger B<perldoc>
L<perldebug>.

=item Do you have a proper test case?

The easier it is to reproduce your bug, the more likely it will be
fixed -- if nobody can duplicate your problem, it probably won't be 
addressed.

A good test case has most of these attributes: short, simple code;
few dependencies on external commands, modules, or libraries; no
platform-dependent code (unless it's a platform-specific bug);
clear, simple documentation.

A good test case is almost always a good candidate to be included in
Perl's test suite.  If you have the time, consider writing your test case so
that it can be easily included into the standard test suite.

=item Have you included all relevant information?

Be sure to include the B<exact> error messages, if any.
"Perl gave an error" is not an exact error message.

If you get a core dump (or equivalent), you may use a debugger
(B<dbx>, B<gdb>, etc) to produce a stack trace to include in the bug
report.  

NOTE: unless your Perl has been compiled with debug info
(often B<-g>), the stack trace is likely to be somewhat hard to use
because it will most probably contain only the function names and not
their arguments.  If possible, recompile your Perl with debug info and
reproduce the crash and the stack trace.

=item Can you describe the bug in plain English?

The easier it is to understand a reproducible bug, the more likely
it will be fixed.  Any insight you can provide into the problem
will help a great deal.  In other words, try to analyze the problem
(to the extent you can) and report your discoveries.

=item Can you fix the bug yourself?

A bug report which I<includes a patch to fix it> will almost
definitely be fixed.  When sending a patch, please use the C<diff>
program with the C<-u> option to generate "unified" diff files.
Bug reports with patches are likely to receive significantly more
attention and interest than those without patches.

Your patch may be returned with requests for changes, or requests for more
detailed explanations about your fix.

Here are a few hints for creating high-quality patches:

Make sure the patch is not reversed (the first argument to diff is
typically the original file, the second argument your changed file).
Make sure you test your patch by applying it with the C<patch>
program before you send it on its way.  Try to follow the same style
as the code you are trying to patch.  Make sure your patch really
does work (C<make test>, if the thing you're patching is covered
by Perl's test suite).

=item Can you use C<perlbug> to submit the report?

B<perlbug> will, amongst other things, ensure your report includes
crucial information about your version of perl.  If C<perlbug> is
unable to mail your report after you have typed it in, you may have
to compose the message yourself, add the output produced by C<perlbug
-d> and email it to B<perlbug@perl.org>.  If, for some reason, you
cannot run C<perlbug> at all on your system, be sure to include the
entire output produced by running C<perl -V> (note the uppercase V).

Whether you use C<perlbug> or send the email manually, please make
your Subject line informative.  "a bug" is not informative.  Neither
is "perl crashes" nor is "HELP!!!".  These don't help.  A compact
description of what's wrong is fine.

=item Can you use C<perlbug> to submit a thank-you note?

Yes, you can do this by either using the C<-T> option, or by invoking
the program as C<perlthanks>. Thank-you notes are good. It makes people
smile. 

=back

Having done your bit, please be prepared to wait, to be told the
bug is in your code, or possibly to get no reply at all.  The
volunteers who maintain Perl are busy folks, so if your problem is
an obvious bug in your own code, is difficult to understand or is
a duplicate of an existing report, you may not receive a personal
reply.

If it is important to you that your bug be fixed, do monitor the
perl5-porters@perl.org mailing list and the commit logs to development
versions of Perl, and encourage the maintainers with kind words or
offers of frosty beverages.  (Please do be kind to the maintainers.
Harassing or flaming them is likely to have the opposite effect of
the one you want.)

Feel free to update the ticket about your bug on http://rt.perl.org
if a new version of Perl is released and your bug is still present.

=head1 OPTIONS

=over 8

=item B<-a>

Address to send the report to.  Defaults to B<perlbug@perl.org>.

=item B<-A>

Don't send a bug received acknowledgement to the reply address.
Generally it is only a sensible to use this option if you are a
perl maintainer actively watching perl porters for your message to
arrive.

=item B<-b>

Body of the report.  If not included on the command line, or
in a file with B<-f>, you will get a chance to edit the message.

=item B<-C>

Don't send copy to administrator.

=item B<-c>

Address to send copy of report to.  Defaults to the address of the
local perl administrator (recorded when perl was built).

=item B<-d>

Data mode (the default if you redirect or pipe output).  This prints out
your configuration data, without mailing anything.  You can use this
with B<-v> to get more complete data.

=item B<-e>

Editor to use.

=item B<-f>

File containing the body of the report.  Use this to quickly send a
prepared message.

=item B<-F>

File to output the results to instead of sending as an email. Useful
particularly when running perlbug on a machine with no direct internet
connection.

=item B<-h>

Prints a brief summary of the options.

=item B<-ok>

Report successful build on this system to perl porters. Forces B<-S>
and B<-C>. Forces and supplies values for B<-s> and B<-b>. Only
prompts for a return address if it cannot guess it (for use with
B<make>). Honors return address specified with B<-r>.  You can use this
with B<-v> to get more complete data.   Only makes a report if this
system is less than 60 days old.

=item B<-okay>

As B<-ok> except it will report on older systems.

=item B<-nok>

Report unsuccessful build on this system.  Forces B<-C>.  Forces and
supplies a value for B<-s>, then requires you to edit the report
and say what went wrong.  Alternatively, a prepared report may be
supplied using B<-f>.  Only prompts for a return address if it
cannot guess it (for use with B<make>). Honors return address
specified with B<-r>.  You can use this with B<-v> to get more
complete data.  Only makes a report if this system is less than 60
days old.

=item B<-nokay>

As B<-nok> except it will report on older systems.

=item B<-r>

Your return address.  The program will ask you to confirm its default
if you don't use this option.

=item B<-S>

Send without asking for confirmation.

=item B<-s>

Subject to include with the message.  You will be prompted if you don't
supply one on the command line.

=item B<-t>

Test mode.  The target address defaults to B<perlbug-test@perl.org>.

=item B<-T>

Send a thank-you note instead of a bug report. 

=item B<-v>

Include verbose configuration data in the report.

=back

=head1 AUTHORS

Kenneth Albanowski (E<lt>kjahds@kjahds.comE<gt>), subsequently
I<doc>tored by Gurusamy Sarathy (E<lt>gsar@activestate.comE<gt>),
Tom Christiansen (E<lt>tchrist@perl.comE<gt>), Nathan Torkington
(E<lt>gnat@frii.comE<gt>), Charles F. Randall (E<lt>cfr@pobox.comE<gt>),
Mike Guy (E<lt>mjtg@cam.a.ukE<gt>), Dominic Dunlop
(E<lt>domo@computer.orgE<gt>), Hugo van der Sanden (E<lt>hv@crypt.org<gt>),
Jarkko Hietaniemi (E<lt>jhi@iki.fiE<gt>), Chris Nandor
(E<lt>pudge@pobox.comE<gt>), Jon Orwant (E<lt>orwant@media.mit.eduE<gt>,
Richard Foley (E<lt>richard.foley@rfi.netE<gt>), and Jesse Vincent
(E<lt>jesse@bestpractical.com<gt>).

=head1 SEE ALSO

perl(1), perldebug(1), perldiag(1), perlport(1), perltrap(1),
diff(1), patch(1), dbx(1), gdb(1)

=head1 BUGS

None known (guess what must have been used to report them?)

=cut

!NO!SUBS!

close OUT or die "Can't close $file: $!";
chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
chdir $origdir;