Initial import of Perl5. The king is dead; long live the king!

10 files changed, 2590 insertions, 0 deletions

diff --git a/contrib/perl5/t/pragma/constant.t b/contrib/perl5/t/pragma/constant.t
new file mode 100755
index 0000000..0b58bae
--- /dev/null
+++ b/contrib/perl5/t/pragma/constant.t
@@ -0,0 +1,141 @@
+#!./perl
+
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib' if -d '../lib';
+}
+
+BEGIN {$^W |= 1}		# Insist upon warnings
+use vars qw{ @warnings };
+BEGIN {				# ...and save 'em for later
+    $SIG{'__WARN__'} = sub { push @warnings, @_ }
+}
+END { print @warnings }
+
+######################### We start with some black magic to print on failure.
+
+BEGIN { $| = 1; print "1..39\n"; }
+END {print "not ok 1\n" unless $loaded;}
+use constant;
+$loaded = 1;
+#print "# Version: $constant::VERSION\n";
+print "ok 1\n";
+
+######################### End of black magic.
+
+use strict;
+
+sub test ($$;$) {
+    my($num, $bool, $diag) = @_;
+    if ($bool) {
+	print "ok $num\n";
+	return;
+    }
+    print "not ok $num\n";
+    return unless defined $diag;
+    $diag =~ s/\Z\n?/\n/;			# unchomp
+    print map "# $num : $_", split m/^/m, $diag;
+}
+
+use constant PI		=> 4 * atan2 1, 1;
+
+test 2, substr(PI, 0, 7) eq '3.14159';
+test 3, defined PI;
+
+sub deg2rad { PI * $_[0] / 180 }
+
+my $ninety = deg2rad 90;
+
+test 4, $ninety > 1.5707;
+test 5, $ninety < 1.5708;
+
+use constant UNDEF1	=> undef;	# the right way
+use constant UNDEF2	=>	;	# the weird way
+use constant 'UNDEF3'		;	# the 'short' way
+use constant EMPTY	=> ( )  ;	# the right way for lists
+
+test 6, not defined UNDEF1;
+test 7, not defined UNDEF2;
+test 8, not defined UNDEF3;
+my @undef = UNDEF1;
+test 9, @undef == 1;
+test 10, not defined $undef[0];
+@undef = UNDEF2;
+test 11, @undef == 0;
+@undef = UNDEF3;
+test 12, @undef == 0;
+@undef = EMPTY;
+test 13, @undef == 0;
+
+use constant COUNTDOWN	=> scalar reverse 1, 2, 3, 4, 5;
+use constant COUNTLIST	=> reverse 1, 2, 3, 4, 5;
+use constant COUNTLAST	=> (COUNTLIST)[-1];
+
+test 14, COUNTDOWN eq '54321';
+my @cl = COUNTLIST;
+test 15, @cl == 5;
+test 16, COUNTDOWN eq join '', @cl;
+test 17, COUNTLAST == 1;
+test 18, (COUNTLIST)[1] == 4;
+
+use constant ABC	=> 'ABC';
+test 19, "abc${\( ABC )}abc" eq "abcABCabc";
+
+use constant DEF	=> 'D', 'E', chr ord 'F';
+test 20, "d e f @{[ DEF ]} d e f" eq "d e f D E F d e f";
+
+use constant SINGLE	=> "'";
+use constant DOUBLE	=> '"';
+use constant BACK	=> '\\';
+my $tt = BACK . SINGLE . DOUBLE ;
+test 21, $tt eq q(\\'");
+
+use constant MESS	=> q('"'\\"'"\\);
+test 22, MESS eq q('"'\\"'"\\);
+test 23, length(MESS) == 8;
+
+use constant TRAILING	=> '12 cats';
+{
+    my $save_warn;
+    local $^W;
+    BEGIN { $save_warn = $^W; $^W = 0 }
+    test 24, TRAILING == 12;
+    BEGIN { $^W = $save_warn }
+}
+test 25, TRAILING eq '12 cats';
+
+use constant LEADING	=> " \t1234";
+test 26, LEADING == 1234;
+test 27, LEADING eq " \t1234";
+
+use constant ZERO1	=> 0;
+use constant ZERO2	=> 0.0;
+use constant ZERO3	=> '0.0';
+test 28, ZERO1 eq '0';
+test 29, ZERO2 eq '0';
+test 30, ZERO3 eq '0.0';
+
+{
+    package Other;
+    use constant PI	=> 3.141;
+}
+
+test 31, (PI > 3.1415 and PI < 3.1416);
+test 32, Other::PI == 3.141;
+
+use constant E2BIG => $! = 7;
+test 33, E2BIG == 7;
+# This is something like "Arg list too long", but the actual message
+# text may vary, so we can't test much better than this.
+test 34, length(E2BIG) > 6;
+test 35, index(E2BIG, " ") > 0;
+
+test 36, @warnings == 0, join "\n", "unexpected warning", @warnings;
+@warnings = ();		# just in case
+undef &PI;
+test 37, @warnings &&
+    ($warnings[0] =~ /Constant sub.* undefined/),
+    shift @warnings;
+
+test 38, @warnings == 0, "unexpected warning";
+test 39, $^W & 1, "Who disabled the warnings?";
diff --git a/contrib/perl5/t/pragma/locale.t b/contrib/perl5/t/pragma/locale.t
new file mode 100755
index 0000000..00baa66
--- /dev/null
+++ b/contrib/perl5/t/pragma/locale.t
@@ -0,0 +1,483 @@
+#!./perl -wT
+
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+    require Config; import Config;
+    if (!$Config{d_setlocale} || $Config{ccflags} =~ /\bD?NO_LOCALE\b/) {
+	print "1..0\n";
+	exit;
+    }
+}
+
+use strict;
+
+my $have_setlocale = 0;
+eval {
+    require POSIX;
+    import POSIX ':locale_h';
+    $have_setlocale++;
+};
+
+# Visual C's CRT goes silly on strings of the form "en_US.ISO8859-1"
+# and mingw32 uses said silly CRT
+$have_setlocale = 0 if $^O eq 'MSWin32' && $Config{cc} =~ /^(cl|gcc)/i;
+
+print "1..", ($have_setlocale ? 102 : 98), "\n";
+
+use vars qw($a
+	    $English $German $French $Spanish
+	    @C @English @German @French @Spanish
+	    $Locale @Locale %iLocale %UPPER %lower @Neoalpha);
+
+$a = 'abc %';
+
+sub ok {
+    my ($n, $result) = @_;
+
+    print 'not ' unless ($result);
+    print "ok $n\n";
+}
+
+# First we'll do a lot of taint checking for locales.
+# This is the easiest to test, actually, as any locale,
+# even the default locale will taint under 'use locale'.
+
+sub is_tainted { # hello, camel two.
+    local $^W;	# no warnings 'undef'
+    my $dummy;
+    not eval { $dummy = join("", @_), kill 0; 1 }
+}
+
+sub check_taint ($$) {
+    ok $_[0], is_tainted($_[1]);
+}
+
+sub check_taint_not ($$) {
+    ok $_[0], not is_tainted($_[1]);
+}
+
+use locale;	# engage locale and therefore locale taint.
+
+check_taint_not   1, $a;
+
+check_taint       2, uc($a);
+check_taint       3, "\U$a";
+check_taint       4, ucfirst($a);
+check_taint       5, "\u$a";
+check_taint       6, lc($a);
+check_taint       7, "\L$a";
+check_taint       8, lcfirst($a);
+check_taint       9, "\l$a";
+
+check_taint      10, sprintf('%e', 123.456);
+check_taint      11, sprintf('%f', 123.456);
+check_taint      12, sprintf('%g', 123.456);
+check_taint_not  13, sprintf('%d', 123.456);
+check_taint_not  14, sprintf('%x', 123.456);
+
+$_ = $a;	# untaint $_
+
+$_ = uc($a);	# taint $_
+
+check_taint      15, $_;
+
+/(\w)/;	# taint $&, $`, $', $+, $1.
+check_taint      16, $&;
+check_taint      17, $`;
+check_taint      18, $';
+check_taint      19, $+;
+check_taint      20, $1;
+check_taint_not  21, $2;
+
+/(.)/;	# untaint $&, $`, $', $+, $1.
+check_taint_not  22, $&;
+check_taint_not  23, $`;
+check_taint_not  24, $';
+check_taint_not  25, $+;
+check_taint_not  26, $1;
+check_taint_not  27, $2;
+
+/(\W)/;	# taint $&, $`, $', $+, $1.
+check_taint      28, $&;
+check_taint      29, $`;
+check_taint      30, $';
+check_taint      31, $+;
+check_taint      32, $1;
+check_taint_not  33, $2;
+
+/(\s)/;	# taint $&, $`, $', $+, $1.
+check_taint      34, $&;
+check_taint      35, $`;
+check_taint      36, $';
+check_taint      37, $+;
+check_taint      38, $1;
+check_taint_not  39, $2;
+
+/(\S)/;	# taint $&, $`, $', $+, $1.
+check_taint      40, $&;
+check_taint      41, $`;
+check_taint      42, $';
+check_taint      43, $+;
+check_taint      44, $1;
+check_taint_not  45, $2;
+
+$_ = $a;	# untaint $_
+
+check_taint_not  46, $_;
+
+/(b)/;		# this must not taint
+check_taint_not  47, $&;
+check_taint_not  48, $`;
+check_taint_not  49, $';
+check_taint_not  50, $+;
+check_taint_not  51, $1;
+check_taint_not  52, $2;
+
+$_ = $a;	# untaint $_
+
+check_taint_not  53, $_;
+
+$b = uc($a);	# taint $b
+s/(.+)/$b/;	# this must taint only the $_
+
+check_taint      54, $_;
+check_taint_not  55, $&;
+check_taint_not  56, $`;
+check_taint_not  57, $';
+check_taint_not  58, $+;
+check_taint_not  59, $1;
+check_taint_not  60, $2;
+
+$_ = $a;	# untaint $_
+
+s/(.+)/b/;	# this must not taint
+check_taint_not  61, $_;
+check_taint_not  62, $&;
+check_taint_not  63, $`;
+check_taint_not  64, $';
+check_taint_not  65, $+;
+check_taint_not  66, $1;
+check_taint_not  67, $2;
+
+$b = $a;	# untaint $b
+
+($b = $a) =~ s/\w/$&/;
+check_taint      68, $b;	# $b should be tainted.
+check_taint_not  69, $a;	# $a should be not.
+
+$_ = $a;	# untaint $_
+
+s/(\w)/\l$1/;	# this must taint
+check_taint      70, $_;
+check_taint      71, $&;
+check_taint      72, $`;
+check_taint      73, $';
+check_taint      74, $+;
+check_taint      75, $1;
+check_taint_not  76, $2;
+
+$_ = $a;	# untaint $_
+
+s/(\w)/\L$1/;	# this must taint
+check_taint      77, $_;
+check_taint      78, $&;
+check_taint      79, $`;
+check_taint      80, $';
+check_taint      81, $+;
+check_taint      82, $1;
+check_taint_not  83, $2;
+
+$_ = $a;	# untaint $_
+
+s/(\w)/\u$1/;	# this must taint
+check_taint      84, $_;
+check_taint      85, $&;
+check_taint      86, $`;
+check_taint      87, $';
+check_taint      88, $+;
+check_taint      89, $1;
+check_taint_not  90, $2;
+
+$_ = $a;	# untaint $_
+
+s/(\w)/\U$1/;	# this must taint
+check_taint      91, $_;
+check_taint      92, $&;
+check_taint      93, $`;
+check_taint      94, $';
+check_taint      95, $+;
+check_taint      96, $1;
+check_taint_not  97, $2;
+
+# After all this tainting $a should be cool.
+
+check_taint_not  98, $a;
+
+# I think we've seen quite enough of taint.
+# Let us do some *real* locale work now,
+#  unless setlocale() is missing (i.e. minitest).
+
+exit unless $have_setlocale;
+
+sub getalnum {
+    sort grep /\w/, map { chr } 0..255
+}
+
+sub locatelocale ($$@) {
+    my ($lcall, $alnum, @try) = @_;
+
+    undef $$lcall;
+
+    for (@try) {
+	local $^W = 0; # suppress "Subroutine LC_ALL redefined"
+	if (setlocale(&LC_ALL, $_)) {
+	    $$lcall = $_;
+	    @$alnum = &getalnum;
+	    last;
+	}
+    }
+
+    @$alnum = () unless (defined $$lcall);
+}
+
+# Find some default locale
+
+locatelocale(\$Locale, \@Locale, qw(C POSIX));
+
+# Find some English locale
+
+locatelocale(\$English, \@English,
+	     qw(en_US.ISO8859-1 en_GB.ISO8859-1
+		en en_US en_UK en_IE en_CA en_AU en_NZ
+		english english.iso88591
+		american american.iso88591
+		british british.iso88591
+		));
+
+# Find some German locale
+
+locatelocale(\$German, \@German,
+	     qw(de_DE.ISO8859-1 de_AT.ISO8859-1 de_CH.ISO8859-1
+		de de_DE de_AT de_CH
+		german german.iso88591));
+
+# Find some French locale
+
+locatelocale(\$French, \@French,
+	     qw(fr_FR.ISO8859-1 fr_BE.ISO8859-1 fr_CA.ISO8859-1 fr_CH.ISO8859-1
+		fr fr_FR fr_BE fr_CA fr_CH
+		french french.iso88591));
+
+# Find some Spanish locale
+
+locatelocale(\$Spanish, \@Spanish,
+	     qw(es_AR.ISO8859-1 es_BO.ISO8859-1 es_CL.ISO8859-1
+		es_CO.ISO8859-1 es_CR.ISO8859-1 es_EC.ISO8859-1
+		es_ES.ISO8859-1 es_GT.ISO8859-1 es_MX.ISO8859-1
+		es_NI.ISO8859-1 es_PA.ISO8859-1 es_PE.ISO8859-1
+		es_PY.ISO8859-1 es_SV.ISO8859-1 es_UY.ISO8859-1 es_VE.ISO8859-1
+		es es_AR es_BO es_CL
+		es_CO es_CR es_EC
+		es_ES es_GT es_MX
+		es_NI es_PA es_PE
+		es_PY es_SV es_UY es_VE
+		spanish spanish.iso88591));
+
+# Select the largest of the alpha(num)bets.
+
+($Locale, @Locale) = ($English, @English)
+    if (@English > @Locale);
+($Locale, @Locale) = ($German, @German)
+    if (@German  > @Locale);
+($Locale, @Locale) = ($French, @French)
+    if (@French  > @Locale);
+($Locale, @Locale) = ($Spanish, @Spanish)
+    if (@Spanish > @Locale);
+
+{
+    local $^W = 0;
+    setlocale(&LC_ALL, $Locale);
+}
+
+# Sort it now that LC_ALL has been set.
+
+@Locale = sort @Locale;
+
+print "# Locale = $Locale\n";
+print "# Alnum_ = @Locale\n";
+
+{
+    my $i = 0;
+
+    for (@Locale) {
+	$iLocale{$_} = $i++;
+    }
+}
+
+# Sieve the uppercase and the lowercase.
+
+for (@Locale) {
+    if (/[^\d_]/) { # skip digits and the _
+	if (lc eq $_) {
+	    $UPPER{$_} = uc;
+	} else {
+	    $lower{$_} = lc;
+	}
+    }
+}
+
+# Find the alphabets that are not alphabets in the default locale.
+
+{
+    no locale;
+    
+    for (keys %UPPER, keys %lower) {
+	push(@Neoalpha, $_) if (/\W/);
+    }
+}
+
+@Neoalpha = sort @Neoalpha;
+
+# Test \w.
+
+{
+    my $word = join('', @Neoalpha);
+
+    $word =~ /^(\w*)$/;
+
+    print 'not ' if ($1 ne $word);
+}
+print "ok 99\n";
+
+# Find places where the collation order differs from the default locale.
+
+print "# testing 100\n";
+{
+    my (@k, $i, $j, @d);
+
+    {
+	no locale;
+
+	@k = sort (keys %UPPER, keys %lower); 
+    }
+
+    for ($i = 0; $i < @k; $i++) {
+	for ($j = $i + 1; $j < @k; $j++) {
+	    if ($iLocale{$k[$j]} < $iLocale{$k[$i]}) {
+		push(@d, [$k[$j], $k[$i]]);
+	    }
+	}
+    }
+
+    # Cross-check those places.
+
+    for (@d) {
+	($i, $j) = @$_;
+	if ($i gt $j) {
+	    print "# failed 100 at:\n";
+	    print "# i = $i, j = $j, i ",
+	          $i le $j ? 'le' : 'gt', " j\n";
+	    print 'not ';
+	    last;
+	}
+    }
+}
+print "ok 100\n";
+
+# Cross-check whole character set.
+
+print "# testing 101\n";
+for (map { chr } 0..255) {
+    if (/\w/ and /\W/) { print 'not '; last }
+    if (/\d/ and /\D/) { print 'not '; last }
+    if (/\s/ and /\S/) { print 'not '; last }
+    if (/\w/ and /\D/ and not /_/ and
+	not (exists $UPPER{$_} or exists $lower{$_})) {
+	print "# failed 101 at:\n";
+	print "# ", ord($_), " '$_'\n";
+	print 'not ';
+	last;
+    }
+}
+print "ok 101\n";
+
+# Test for read-onlys.
+
+{
+    no locale;
+    $a = "qwerty";
+    {
+	use locale;
+	print "not " if $a cmp "qwerty";
+    }
+}
+print "ok 102\n";
+
+# This test must be the last one because its failure is not fatal.
+# The @Locale should be internally consistent.
+# Thanks to Hallvard Furuseth <h.b.furuseth@usit.uio.no>
+# for inventing a way to test for ordering consistency
+# without requiring any particular order.
+# ++$jhi;#@iki.fi
+
+print "# testing 103\n";
+{
+    my ($from, $to, $lesser, $greater, @test, %test, $test, $yes, $no, $sign);
+
+    for (0..9) {
+	# Select a slice.
+	$from = int(($_*@Locale)/10);
+	$to = $from + int(@Locale/10);
+        $to = $#Locale if ($to > $#Locale);
+	$lesser  = join('', @Locale[$from..$to]);
+	# Select a slice one character on.
+	$from++; $to++;
+        $to = $#Locale if ($to > $#Locale);
+	$greater = join('', @Locale[$from..$to]);
+	($yes, $no, $sign) = ($lesser lt $greater
+				? ("    ", "not ", 1)
+				: ("not ", "    ", -1));
+	# all these tests should FAIL (return 0).
+	@test = 
+	    (
+	     $no.'    ($lesser  lt $greater)',  # 0
+	     $no.'    ($lesser  le $greater)',  # 1
+	     'not      ($lesser  ne $greater)', # 2
+	     '         ($lesser  eq $greater)', # 3
+	     $yes.'    ($lesser  ge $greater)', # 4
+	     $yes.'    ($lesser  gt $greater)', # 5
+	     $yes.'    ($greater lt $lesser )', # 6
+	     $yes.'    ($greater le $lesser )', # 7
+	     'not      ($greater ne $lesser )', # 8
+	     '         ($greater eq $lesser )', # 9
+	     $no.'     ($greater ge $lesser )', # 10
+	     $no.'     ($greater gt $lesser )', # 11
+	     'not (($lesser cmp $greater) == -$sign)' # 12
+	     );
+	@test{@test} = 0 x @test;
+	$test = 0;
+	for my $ti (@test) { $test{$ti} = eval $ti ; $test ||= $test{$ti} }
+	if ($test) {
+	    print "# failed 103 at:\n";
+	    print "# lesser  = '$lesser'\n";
+	    print "# greater = '$greater'\n";
+	    print "# lesser cmp greater = ", $lesser cmp $greater, "\n";
+	    print "# greater cmp lesser = ", $greater cmp $lesser, "\n";
+	    print "# (greater) from = $from, to = $to\n";
+	    for my $ti (@test) {
+		printf("# %-40s %-4s", $ti,
+		       $test{$ti} ? 'FAIL' : 'ok');
+		if ($ti =~ /\(\.*(\$.+ +cmp +\$[^\)]+)\.*\)/) {
+		    printf("(%s == %4d)", $1, eval $1);
+	        }
+		print "\n";
+	    }
+
+	    warn "The locale definition on your system may have errors.\n";
+	    last;
+	}
+    }
+}
+
+# eof
diff --git a/contrib/perl5/t/pragma/overload.t b/contrib/perl5/t/pragma/overload.t
new file mode 100755
index 0000000..afba8a3
--- /dev/null
+++ b/contrib/perl5/t/pragma/overload.t
@@ -0,0 +1,698 @@
+#!./perl
+
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+}
+
+package Oscalar;
+use overload ( 
+				# Anonymous subroutines:
+'+'	=>	sub {new Oscalar $ {$_[0]}+$_[1]},
+'-'	=>	sub {new Oscalar
+		       $_[2]? $_[1]-${$_[0]} : ${$_[0]}-$_[1]},
+'<=>'	=>	sub {new Oscalar
+		       $_[2]? $_[1]-${$_[0]} : ${$_[0]}-$_[1]},
+'cmp'	=>	sub {new Oscalar
+		       $_[2]? ($_[1] cmp ${$_[0]}) : (${$_[0]} cmp $_[1])},
+'*'	=>	sub {new Oscalar ${$_[0]}*$_[1]},
+'/'	=>	sub {new Oscalar 
+		       $_[2]? $_[1]/${$_[0]} :
+			 ${$_[0]}/$_[1]},
+'%'	=>	sub {new Oscalar
+		       $_[2]? $_[1]%${$_[0]} : ${$_[0]}%$_[1]},
+'**'	=>	sub {new Oscalar
+		       $_[2]? $_[1]**${$_[0]} : ${$_[0]}-$_[1]},
+
+qw(
+""	stringify
+0+	numify)			# Order of arguments unsignificant
+);
+
+sub new {
+  my $foo = $_[1];
+  bless \$foo, $_[0];
+}
+
+sub stringify { "${$_[0]}" }
+sub numify { 0 + "${$_[0]}" }	# Not needed, additional overhead
+				# comparing to direct compilation based on
+				# stringify
+
+package main;
+
+$test = 0;
+$| = 1;
+print "1..",&last,"\n";
+
+sub test {
+  $test++; 
+  if (@_ > 1) {
+    if ($_[0] eq $_[1]) {
+      print "ok $test\n";
+    } else {
+      print "not ok $test: '$_[0]' ne '$_[1]'\n";
+    }
+  } else {
+    if (shift) {
+      print "ok $test\n";
+    } else {
+      print "not ok $test\n";
+    } 
+  }
+}
+
+$a = new Oscalar "087";
+$b= "$a";
+
+# All test numbers in comments are off by 1.
+# So much for hard-wiring them in :-) To fix this:
+test(1);			# 1
+
+test ($b eq $a);		# 2
+test ($b eq "087");		# 3
+test (ref $a eq "Oscalar");	# 4
+test ($a eq $a);		# 5
+test ($a eq "087");		# 6
+
+$c = $a + 7;
+
+test (ref $c eq "Oscalar");	# 7
+test (!($c eq $a));		# 8
+test ($c eq "94");		# 9
+
+$b=$a;
+
+test (ref $a eq "Oscalar");	# 10
+
+$b++;
+
+test (ref $b eq "Oscalar");	# 11
+test ( $a eq "087");		# 12
+test ( $b eq "88");		# 13
+test (ref $a eq "Oscalar");	# 14
+
+$c=$b;
+$c-=$a;
+
+test (ref $c eq "Oscalar");	# 15
+test ( $a eq "087");		# 16
+test ( $c eq "1");		# 17
+test (ref $a eq "Oscalar");	# 18
+
+$b=1;
+$b+=$a;
+
+test (ref $b eq "Oscalar");	# 19
+test ( $a eq "087");		# 20
+test ( $b eq "88");		# 21
+test (ref $a eq "Oscalar");	# 22
+
+eval q[ package Oscalar; use overload ('++' => sub { $ {$_[0]}++;$_[0] } ) ];
+
+$b=$a;
+
+test (ref $a eq "Oscalar");	# 23
+
+$b++;
+
+test (ref $b eq "Oscalar");	# 24
+test ( $a eq "087");		# 25
+test ( $b eq "88");		# 26
+test (ref $a eq "Oscalar");	# 27
+
+package Oscalar;
+$dummy=bless \$dummy;		# Now cache of method should be reloaded
+package main;
+
+$b=$a;
+$b++;				
+
+test (ref $b eq "Oscalar");	# 28
+test ( $a eq "087");		# 29
+test ( $b eq "88");		# 30
+test (ref $a eq "Oscalar");	# 31
+
+
+eval q[package Oscalar; use overload ('++' => sub { $ {$_[0]} += 2; $_[0] } ) ];
+
+$b=$a;
+
+test (ref $a eq "Oscalar");	# 32
+
+$b++;
+
+test (ref $b eq "Oscalar");	# 33
+test ( $a eq "087");		# 34
+test ( $b eq "88");		# 35
+test (ref $a eq "Oscalar");	# 36
+
+package Oscalar;
+$dummy=bless \$dummy;		# Now cache of method should be reloaded
+package main;
+
+$b++;				
+
+test (ref $b eq "Oscalar");	# 37
+test ( $a eq "087");		# 38
+test ( $b eq "90");		# 39
+test (ref $a eq "Oscalar");	# 40
+
+$b=$a;
+$b++;
+
+test (ref $b eq "Oscalar");	# 41
+test ( $a eq "087");		# 42
+test ( $b eq "89");		# 43
+test (ref $a eq "Oscalar");	# 44
+
+
+test ($b? 1:0);			# 45
+
+eval q[ package Oscalar; use overload ('=' => sub {$main::copies++; 
+						   package Oscalar;
+						   local $new=$ {$_[0]};
+						   bless \$new } ) ];
+
+$b=new Oscalar "$a";
+
+test (ref $b eq "Oscalar");	# 46
+test ( $a eq "087");		# 47
+test ( $b eq "087");		# 48
+test (ref $a eq "Oscalar");	# 49
+
+$b++;
+
+test (ref $b eq "Oscalar");	# 50
+test ( $a eq "087");		# 51
+test ( $b eq "89");		# 52
+test (ref $a eq "Oscalar");	# 53
+test ($copies == 0);		# 54
+
+$b+=1;
+
+test (ref $b eq "Oscalar");	# 55
+test ( $a eq "087");		# 56
+test ( $b eq "90");		# 57
+test (ref $a eq "Oscalar");	# 58
+test ($copies == 0);		# 59
+
+$b=$a;
+$b+=1;
+
+test (ref $b eq "Oscalar");	# 60
+test ( $a eq "087");		# 61
+test ( $b eq "88");		# 62
+test (ref $a eq "Oscalar");	# 63
+test ($copies == 0);		# 64
+
+$b=$a;
+$b++;
+
+test (ref $b eq "Oscalar") || print ref $b,"=ref(b)\n";	# 65
+test ( $a eq "087");		# 66
+test ( $b eq "89");		# 67
+test (ref $a eq "Oscalar");	# 68
+test ($copies == 1);		# 69
+
+eval q[package Oscalar; use overload ('+=' => sub {$ {$_[0]} += 3*$_[1];
+						   $_[0] } ) ];
+$c=new Oscalar;			# Cause rehash
+
+$b=$a;
+$b+=1;
+
+test (ref $b eq "Oscalar");	# 70
+test ( $a eq "087");		# 71
+test ( $b eq "90");		# 72
+test (ref $a eq "Oscalar");	# 73
+test ($copies == 2);		# 74
+
+$b+=$b;
+
+test (ref $b eq "Oscalar");	# 75
+test ( $b eq "360");		# 76
+test ($copies == 2);		# 77
+$b=-$b;
+
+test (ref $b eq "Oscalar");	# 78
+test ( $b eq "-360");		# 79
+test ($copies == 2);		# 80
+
+$b=abs($b);
+
+test (ref $b eq "Oscalar");	# 81
+test ( $b eq "360");		# 82
+test ($copies == 2);		# 83
+
+$b=abs($b);
+
+test (ref $b eq "Oscalar");	# 84
+test ( $b eq "360");		# 85
+test ($copies == 2);		# 86
+
+eval q[package Oscalar; 
+       use overload ('x' => sub {new Oscalar ( $_[2] ? "_.$_[1]._" x $ {$_[0]}
+					      : "_.${$_[0]}._" x $_[1])}) ];
+
+$a=new Oscalar "yy";
+$a x= 3;
+test ($a eq "_.yy.__.yy.__.yy._"); # 87
+
+eval q[package Oscalar; 
+       use overload ('.' => sub {new Oscalar ( $_[2] ? 
+					      "_.$_[1].__.$ {$_[0]}._"
+					      : "_.$ {$_[0]}.__.$_[1]._")}) ];
+
+$a=new Oscalar "xx";
+
+test ("b${a}c" eq "_._.b.__.xx._.__.c._"); # 88
+
+# Check inheritance of overloading;
+{
+  package OscalarI;
+  @ISA = 'Oscalar';
+}
+
+$aI = new OscalarI "$a";
+test (ref $aI eq "OscalarI");	# 89
+test ("$aI" eq "xx");		# 90
+test ($aI eq "xx");		# 91
+test ("b${aI}c" eq "_._.b.__.xx._.__.c._");		# 92
+
+# Here we test blessing to a package updates hash
+
+eval "package Oscalar; no overload '.'";
+
+test ("b${a}" eq "_.b.__.xx._"); # 93
+$x="1";
+bless \$x, Oscalar;
+test ("b${a}c" eq "bxxc");	# 94
+new Oscalar 1;
+test ("b${a}c" eq "bxxc");	# 95
+
+# Negative overloading:
+
+$na = eval { ~$a };
+test($@ =~ /no method found/);	# 96
+
+# Check AUTOLOADING:
+
+*Oscalar::AUTOLOAD = 
+  sub { *{"Oscalar::$AUTOLOAD"} = sub {"_!_" . shift() . "_!_"} ;
+	goto &{"Oscalar::$AUTOLOAD"}};
+
+eval "package Oscalar; sub comple; use overload '~' => 'comple'";
+
+$na = eval { ~$a };		# Hash was not updated
+test($@ =~ /no method found/);	# 97
+
+bless \$x, Oscalar;
+
+$na = eval { ~$a };		# Hash updated
+warn "`$na', $@" if $@;
+test !$@;			# 98
+test($na eq '_!_xx_!_');	# 99
+
+$na = 0;
+
+$na = eval { ~$aI };		# Hash was not updated
+test($@ =~ /no method found/);	# 100
+
+bless \$x, OscalarI;
+
+$na = eval { ~$aI };
+print $@;
+
+test !$@;			# 101
+test($na eq '_!_xx_!_');	# 102
+
+eval "package Oscalar; sub rshft; use overload '>>' => 'rshft'";
+
+$na = eval { $aI >> 1 };	# Hash was not updated
+test($@ =~ /no method found/);	# 103
+
+bless \$x, OscalarI;
+
+$na = 0;
+
+$na = eval { $aI >> 1 };
+print $@;
+
+test !$@;			# 104
+test($na eq '_!_xx_!_');	# 105
+
+# warn overload::Method($a, '0+'), "\n";
+test (overload::Method($a, '0+') eq \&Oscalar::numify); # 106
+test (overload::Method($aI,'0+') eq \&Oscalar::numify); # 107
+test (overload::Overloaded($aI)); # 108
+test (!overload::Overloaded('overload')); # 109
+
+test (! defined overload::Method($aI, '<<')); # 110
+test (! defined overload::Method($a, '<')); # 111
+
+test (overload::StrVal($aI) =~ /^OscalarI=SCALAR\(0x[\da-fA-F]+\)$/); # 112
+test (overload::StrVal(\$aI) eq "@{[\$aI]}"); # 113
+
+# Check overloading by methods (specified deep in the ISA tree).
+{
+  package OscalarII;
+  @ISA = 'OscalarI';
+  sub Oscalar::lshft {"_<<_" . shift() . "_<<_"}
+  eval "package OscalarI; use overload '<<' => 'lshft', '|' => 'lshft'";
+}
+
+$aaII = "087";
+$aII = \$aaII;
+bless $aII, 'OscalarII';
+bless \$fake, 'OscalarI';		# update the hash
+test(($aI | 3) eq '_<<_xx_<<_');	# 114
+# warn $aII << 3;
+test(($aII << 3) eq '_<<_087_<<_');	# 115
+
+{
+  BEGIN { $int = 7; overload::constant 'integer' => sub {$int++; shift}; }
+  $out = 2**10;
+}
+test($int, 9);		# 116
+test($out, 1024);		# 117
+
+$foo = 'foo';
+$foo1 = 'f\'o\\o';
+{
+  BEGIN { $q = $qr = 7; 
+	  overload::constant 'q' => sub {$q++; push @q, shift, ($_[1] || 'none'); shift},
+			     'qr' => sub {$qr++; push @qr, shift, ($_[1] || 'none'); shift}; }
+  $out = 'foo';
+  $out1 = 'f\'o\\o';
+  $out2 = "a\a$foo,\,";
+  /b\b$foo.\./;
+}
+
+test($out, 'foo');		# 118
+test($out, $foo);		# 119
+test($out1, 'f\'o\\o');		# 120
+test($out1, $foo1);		# 121
+test($out2, "a\afoo,\,");	# 122
+test("@q", "foo q f'o\\\\o q a\\a qq ,\\, qq");	# 123
+test($q, 11);			# 124
+test("@qr", "b\\b qq .\\. qq");	# 125
+test($qr, 9);			# 126
+
+{
+  $_ = '!<b>!foo!<-.>!';
+  BEGIN { overload::constant 'q' => sub {push @q1, shift, ($_[1] || 'none'); "_<" . (shift) . ">_"},
+			     'qr' => sub {push @qr1, shift, ($_[1] || 'none'); "!<" . (shift) . ">!"}; }
+  $out = 'foo';
+  $out1 = 'f\'o\\o';
+  $out2 = "a\a$foo,\,";
+  $res = /b\b$foo.\./;
+  $a = <<EOF;
+oups
+EOF
+  $b = <<'EOF';
+oups1
+EOF
+  $c = bareword;
+  m'try it';
+  s'first part'second part';
+  s/yet another/tail here/;
+  tr/z-Z/z-Z/;
+}
+
+test($out, '_<foo>_');		# 117
+test($out1, '_<f\'o\\o>_');		# 128
+test($out2, "_<a\a>_foo_<,\,>_");	# 129
+test("@q1", "foo q f'o\\\\o q a\\a qq ,\\, qq oups
+ qq oups1
+ q second part q tail here s z-Z tr z-Z tr");	# 130
+test("@qr1", "b\\b qq .\\. qq try it q first part q yet another qq");	# 131
+test($res, 1);			# 132
+test($a, "_<oups
+>_");	# 133
+test($b, "_<oups1
+>_");	# 134
+test($c, "bareword");	# 135
+
+{
+  package symbolic;		# Primitive symbolic calculator
+  use overload nomethod => \&wrap, '""' => \&str, '0+' => \&num,
+      '=' => \&cpy, '++' => \&inc, '--' => \&dec;
+
+  sub new { shift; bless ['n', @_] }
+  sub cpy {
+    my $self = shift;
+    bless [@$self], ref $self;
+  }
+  sub inc { $_[0] = bless ['++', $_[0], 1]; }
+  sub dec { $_[0] = bless ['--', $_[0], 1]; }
+  sub wrap {
+    my ($obj, $other, $inv, $meth) = @_;
+    if ($meth eq '++' or $meth eq '--') {
+      @$obj = ($meth, (bless [@$obj]), 1); # Avoid circular reference
+      return $obj;
+    }
+    ($obj, $other) = ($other, $obj) if $inv;
+    bless [$meth, $obj, $other];
+  }
+  sub str {
+    my ($meth, $a, $b) = @{+shift};
+    $a = 'u' unless defined $a;
+    if (defined $b) {
+      "[$meth $a $b]";
+    } else {
+      "[$meth $a]";
+    }
+  } 
+  my %subr = ( 'n' => sub {$_[0]} );
+  foreach my $op (split " ", $overload::ops{with_assign}) {
+    $subr{$op} = $subr{"$op="} = eval "sub {shift() $op shift()}";
+  }
+  my @bins = qw(binary 3way_comparison num_comparison str_comparison);
+  foreach my $op (split " ", "@overload::ops{ @bins }") {
+    $subr{$op} = eval "sub {shift() $op shift()}";
+  }
+  foreach my $op (split " ", "@overload::ops{qw(unary func)}") {
+    $subr{$op} = eval "sub {$op shift()}";
+  }
+  $subr{'++'} = $subr{'+'};
+  $subr{'--'} = $subr{'-'};
+  
+  sub num {
+    my ($meth, $a, $b) = @{+shift};
+    my $subr = $subr{$meth} 
+      or die "Do not know how to ($meth) in symbolic";
+    $a = $a->num if ref $a eq __PACKAGE__;
+    $b = $b->num if ref $b eq __PACKAGE__;
+    $subr->($a,$b);
+  }
+  sub TIESCALAR { my $pack = shift; $pack->new(@_) }
+  sub FETCH { shift }
+  sub nop {  }		# Around a bug
+  sub vars { my $p = shift; tie($_, $p), $_->nop foreach @_; }
+  sub STORE { 
+    my $obj = shift; 
+    $#$obj = 1; 
+    @$obj->[0,1] = ('=', shift);
+  }
+}
+
+{
+  my $foo = new symbolic 11;
+  my $baz = $foo++;
+  test( (sprintf "%d", $foo), '12');
+  test( (sprintf "%d", $baz), '11');
+  my $bar = $foo;
+  $baz = ++$foo;
+  test( (sprintf "%d", $foo), '13');
+  test( (sprintf "%d", $bar), '12');
+  test( (sprintf "%d", $baz), '13');
+  my $ban = $foo;
+  $baz = ($foo += 1);
+  test( (sprintf "%d", $foo), '14');
+  test( (sprintf "%d", $bar), '12');
+  test( (sprintf "%d", $baz), '14');
+  test( (sprintf "%d", $ban), '13');
+  $baz = 0;
+  $baz = $foo++;
+  test( (sprintf "%d", $foo), '15');
+  test( (sprintf "%d", $baz), '14');
+  test( "$foo", '[++ [+= [++ [++ [n 11] 1] 1] 1] 1]');
+}
+
+{
+  my $iter = new symbolic 2;
+  my $side = new symbolic 1;
+  my $cnt = $iter;
+  
+  while ($cnt) {
+    $cnt = $cnt - 1;		# The "simple" way
+    $side = (sqrt(1 + $side**2) - 1)/$side;
+  }
+  my $pi = $side*(2**($iter+2));
+  test "$side", '[/ [- [sqrt [+ 1 [** [/ [- [sqrt [+ 1 [** [n 1] 2]]] 1] [n 1]] 2]]] 1] [/ [- [sqrt [+ 1 [** [n 1] 2]]] 1] [n 1]]]';
+  test( (sprintf "%f", $pi), '3.182598');
+}
+
+{
+  my $iter = new symbolic 2;
+  my $side = new symbolic 1;
+  my $cnt = $iter;
+  
+  while ($cnt--) {
+    $side = (sqrt(1 + $side**2) - 1)/$side;
+  }
+  my $pi = $side*(2**($iter+2));
+  test "$side", '[/ [- [sqrt [+ 1 [** [/ [- [sqrt [+ 1 [** [n 1] 2]]] 1] [n 1]] 2]]] 1] [/ [- [sqrt [+ 1 [** [n 1] 2]]] 1] [n 1]]]';
+  test( (sprintf "%f", $pi), '3.182598');
+}
+
+{
+  my ($a, $b);
+  symbolic->vars($a, $b);
+  my $c = sqrt($a**2 + $b**2);
+  $a = 3; $b = 4;
+  test( (sprintf "%d", $c), '5');
+  $a = 12; $b = 5;
+  test( (sprintf "%d", $c), '13');
+}
+
+{
+  package symbolic1;		# Primitive symbolic calculator
+  # Mutator inc/dec
+  use overload nomethod => \&wrap, '""' => \&str, '0+' => \&num, '=' => \&cpy;
+
+  sub new { shift; bless ['n', @_] }
+  sub cpy {
+    my $self = shift;
+    bless [@$self], ref $self;
+  }
+  sub wrap {
+    my ($obj, $other, $inv, $meth) = @_;
+    if ($meth eq '++' or $meth eq '--') {
+      @$obj = ($meth, (bless [@$obj]), 1); # Avoid circular reference
+      return $obj;
+    }
+    ($obj, $other) = ($other, $obj) if $inv;
+    bless [$meth, $obj, $other];
+  }
+  sub str {
+    my ($meth, $a, $b) = @{+shift};
+    $a = 'u' unless defined $a;
+    if (defined $b) {
+      "[$meth $a $b]";
+    } else {
+      "[$meth $a]";
+    }
+  } 
+  my %subr = ( 'n' => sub {$_[0]} );
+  foreach my $op (split " ", $overload::ops{with_assign}) {
+    $subr{$op} = $subr{"$op="} = eval "sub {shift() $op shift()}";
+  }
+  my @bins = qw(binary 3way_comparison num_comparison str_comparison);
+  foreach my $op (split " ", "@overload::ops{ @bins }") {
+    $subr{$op} = eval "sub {shift() $op shift()}";
+  }
+  foreach my $op (split " ", "@overload::ops{qw(unary func)}") {
+    $subr{$op} = eval "sub {$op shift()}";
+  }
+  $subr{'++'} = $subr{'+'};
+  $subr{'--'} = $subr{'-'};
+  
+  sub num {
+    my ($meth, $a, $b) = @{+shift};
+    my $subr = $subr{$meth} 
+      or die "Do not know how to ($meth) in symbolic";
+    $a = $a->num if ref $a eq __PACKAGE__;
+    $b = $b->num if ref $b eq __PACKAGE__;
+    $subr->($a,$b);
+  }
+  sub TIESCALAR { my $pack = shift; $pack->new(@_) }
+  sub FETCH { shift }
+  sub nop {  }		# Around a bug
+  sub vars { my $p = shift; tie($_, $p), $_->nop foreach @_; }
+  sub STORE { 
+    my $obj = shift; 
+    $#$obj = 1; 
+    @$obj->[0,1] = ('=', shift);
+  }
+}
+
+{
+  my $foo = new symbolic1 11;
+  my $baz = $foo++;
+  test( (sprintf "%d", $foo), '12');
+  test( (sprintf "%d", $baz), '11');
+  my $bar = $foo;
+  $baz = ++$foo;
+  test( (sprintf "%d", $foo), '13');
+  test( (sprintf "%d", $bar), '12');
+  test( (sprintf "%d", $baz), '13');
+  my $ban = $foo;
+  $baz = ($foo += 1);
+  test( (sprintf "%d", $foo), '14');
+  test( (sprintf "%d", $bar), '12');
+  test( (sprintf "%d", $baz), '14');
+  test( (sprintf "%d", $ban), '13');
+  $baz = 0;
+  $baz = $foo++;
+  test( (sprintf "%d", $foo), '15');
+  test( (sprintf "%d", $baz), '14');
+  test( "$foo", '[++ [+= [++ [++ [n 11] 1] 1] 1] 1]');
+}
+
+{
+  my $iter = new symbolic1 2;
+  my $side = new symbolic1 1;
+  my $cnt = $iter;
+  
+  while ($cnt) {
+    $cnt = $cnt - 1;		# The "simple" way
+    $side = (sqrt(1 + $side**2) - 1)/$side;
+  }
+  my $pi = $side*(2**($iter+2));
+  test "$side", '[/ [- [sqrt [+ 1 [** [/ [- [sqrt [+ 1 [** [n 1] 2]]] 1] [n 1]] 2]]] 1] [/ [- [sqrt [+ 1 [** [n 1] 2]]] 1] [n 1]]]';
+  test( (sprintf "%f", $pi), '3.182598');
+}
+
+{
+  my $iter = new symbolic1 2;
+  my $side = new symbolic1 1;
+  my $cnt = $iter;
+  
+  while ($cnt--) {
+    $side = (sqrt(1 + $side**2) - 1)/$side;
+  }
+  my $pi = $side*(2**($iter+2));
+  test "$side", '[/ [- [sqrt [+ 1 [** [/ [- [sqrt [+ 1 [** [n 1] 2]]] 1] [n 1]] 2]]] 1] [/ [- [sqrt [+ 1 [** [n 1] 2]]] 1] [n 1]]]';
+  test( (sprintf "%f", $pi), '3.182598');
+}
+
+{
+  my ($a, $b);
+  symbolic1->vars($a, $b);
+  my $c = sqrt($a**2 + $b**2);
+  $a = 3; $b = 4;
+  test( (sprintf "%d", $c), '5');
+  $a = 12; $b = 5;
+  test( (sprintf "%d", $c), '13');
+}
+
+{
+  package two_face;		# Scalars with separate string and
+                                # numeric values.
+  sub new { my $p = shift; bless [@_], $p }
+  use overload '""' => \&str, '0+' => \&num, fallback => 1;
+  sub num {shift->[1]}
+  sub str {shift->[0]}
+}
+
+{
+  my $seven = new two_face ("vii", 7);
+  test( (sprintf "seven=$seven, seven=%d, eight=%d", $seven, $seven+1),
+	'seven=vii, seven=7, eight=8');
+  test( scalar ($seven =~ /i/), '1')
+}
+
+# Last test is:
+sub last {173}
diff --git a/contrib/perl5/t/pragma/strict-refs b/contrib/perl5/t/pragma/strict-refs
new file mode 100644
index 0000000..7bf1556
--- /dev/null
+++ b/contrib/perl5/t/pragma/strict-refs
@@ -0,0 +1,295 @@
+Check strict refs functionality
+
+__END__
+
+# no strict, should build & run ok.
+my $fred ;
+$b = "fred" ;
+$a = $$b ;
+$c = ${"def"} ;
+$c = @{"def"} ;
+$c = %{"def"} ;
+$c = *{"def"} ;
+$c = \&{"def"} ;
+$c = def->[0];
+$c = def->{xyz};
+EXPECT
+
+########
+
+# strict refs - error
+use strict ;
+my $fred ;
+my $a = ${"fred"} ;
+EXPECT
+Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 5.
+########
+
+# strict refs - error
+use strict 'refs' ;
+my $fred ;
+my $a = ${"fred"} ;
+EXPECT
+Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 5.
+########
+
+# strict refs - error
+use strict 'refs' ;
+my $fred ;
+my $b = "fred" ;
+my $a = $$b ;
+EXPECT
+Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 6.
+########
+
+# strict refs - error
+use strict 'refs' ;
+my $b ;
+my $a = $$b ;
+EXPECT
+Can't use an undefined value as a SCALAR reference at - line 5.
+########
+
+# strict refs - error
+use strict 'refs' ;
+my $b ;
+my $a = @$b ;
+EXPECT
+Can't use an undefined value as an ARRAY reference at - line 5.
+########
+
+# strict refs - error
+use strict 'refs' ;
+my $b ;
+my $a = %$b ;
+EXPECT
+Can't use an undefined value as a HASH reference at - line 5.
+########
+
+# strict refs - error
+use strict 'refs' ;
+my $b ;
+my $a = *$b ;
+EXPECT
+Can't use an undefined value as a symbol reference at - line 5.
+########
+
+# strict refs - error
+use strict 'refs' ;
+my $a = fred->[0] ;
+EXPECT
+Can't use bareword ("fred") as an ARRAY ref while "strict refs" in use at - line 4.
+########
+
+# strict refs - error
+use strict 'refs' ;
+my $a = fred->{barney} ;
+EXPECT
+Can't use bareword ("fred") as a HASH ref while "strict refs" in use at - line 4.
+########
+
+# strict refs - no error
+use strict ;
+no strict 'refs' ;
+my $fred ;
+my $b = "fred" ;
+my $a = $$b ;
+use strict 'refs' ;
+EXPECT
+
+########
+
+# strict refs - no error
+use strict qw(subs vars) ;
+my $fred ;
+my $b = "fred" ;
+my $a = $$b ;
+use strict 'refs' ;
+EXPECT
+
+########
+
+# strict refs - no error
+my $fred ;
+my $b = "fred" ;
+my $a = $$b ;
+use strict 'refs' ;
+EXPECT
+
+########
+
+# strict refs - no error
+use strict 'refs' ;
+my $fred ;
+my $b = \$fred ;
+my $a = $$b ;
+EXPECT
+
+########
+
+# Check runtime scope of strict refs pragma
+use strict 'refs';
+my $fred ;
+my $b = "fred" ;
+{
+    no strict ;
+    my $a = $$b ;
+}
+my $a = $$b ;
+EXPECT
+Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 10.
+########
+
+# Check runtime scope of strict refs pragma
+no strict ;
+my $fred ;
+my $b = "fred" ;
+{
+    use strict 'refs' ;
+    my $a = $$b ;
+}
+my $a = $$b ;
+EXPECT
+Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 8.
+########
+
+# Check runtime scope of strict refs pragma
+no strict ;
+my $fred ;
+my $b = "fred" ;
+{
+    use strict 'refs' ;
+    $a = sub { my $c = $$b ; }
+}
+&$a ;
+EXPECT
+Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 8.
+########
+
+
+--FILE-- abc
+my $a = ${"Fred"} ;
+1;
+--FILE-- 
+use strict 'refs' ;
+require "./abc";
+EXPECT
+
+########
+
+--FILE-- abc
+use strict 'refs' ;
+1;
+--FILE-- 
+require "./abc";
+my $a = ${"Fred"} ;
+EXPECT
+
+########
+
+--FILE-- abc
+use strict 'refs' ;
+my $a = ${"Fred"} ;
+1;
+--FILE-- 
+${"Fred"} ;
+require "./abc";
+EXPECT
+Can't use string ("Fred") as a SCALAR ref while "strict refs" in use at ./abc line 2.
+########
+
+--FILE-- abc.pm
+use strict 'refs' ;
+my $a = ${"Fred"} ;
+1;
+--FILE-- 
+my $a = ${"Fred"} ;
+use abc;
+EXPECT
+Can't use string ("Fred") as a SCALAR ref while "strict refs" in use at abc.pm line 2.
+BEGIN failed--compilation aborted at - line 2.
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval {
+    my $a = ${"Fred"} ;
+};
+print STDERR $@ ;
+my $a = ${"Fred"} ;
+EXPECT
+
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval {
+    use strict 'refs' ;
+    my $a = ${"Fred"} ;
+};
+print STDERR $@ ;
+my $a = ${"Fred"} ;
+EXPECT
+Can't use string ("Fred") as a SCALAR ref while "strict refs" in use at - line 6.
+########
+
+# Check scope of pragma with eval
+use strict 'refs' ;
+eval {
+    my $a = ${"Fred"} ;
+};
+print STDERR $@ ;
+EXPECT
+Can't use string ("Fred") as a SCALAR ref while "strict refs" in use at - line 5.
+########
+
+# Check scope of pragma with eval
+use strict 'refs' ;
+eval {
+    no strict ;
+    my $a = ${"Fred"} ;
+};
+print STDERR $@ ;
+my $a = ${"Fred"} ;
+EXPECT
+Can't use string ("Fred") as a SCALAR ref while "strict refs" in use at - line 9.
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval '
+    my $a = ${"Fred"} ;
+'; print STDERR $@ ;
+my $a = ${"Fred"} ;
+EXPECT
+
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval q[ 
+    use strict 'refs' ;
+    my $a = ${"Fred"} ;
+]; print STDERR $@;
+EXPECT
+Can't use string ("Fred") as a SCALAR ref while "strict refs" in use at (eval 1) line 3.
+########
+
+# Check scope of pragma with eval
+use strict 'refs' ;
+eval '
+    my $a = ${"Fred"} ;
+'; print STDERR $@ ;
+EXPECT
+Can't use string ("Fred") as a SCALAR ref while "strict refs" in use at (eval 1) line 2.
+########
+
+# Check scope of pragma with eval
+use strict 'refs' ;
+eval '
+    no strict ;
+    my $a = ${"Fred"} ;
+'; print STDERR $@;
+my $a = ${"Fred"} ;
+EXPECT
+Can't use string ("Fred") as a SCALAR ref while "strict refs" in use at - line 8.
diff --git a/contrib/perl5/t/pragma/strict-subs b/contrib/perl5/t/pragma/strict-subs
new file mode 100644
index 0000000..61ec286
--- /dev/null
+++ b/contrib/perl5/t/pragma/strict-subs
@@ -0,0 +1,279 @@
+Check strict subs functionality
+
+__END__
+
+# no strict, should build & run ok.
+Fred ;
+my $fred ;
+$b = "fred" ;
+$a = $$b ;
+EXPECT
+
+########
+
+use strict qw(refs vars);
+Fred ;
+EXPECT
+
+########
+
+use strict ;
+no strict 'subs' ;
+Fred ;
+EXPECT
+
+########
+
+# strict subs - error
+use strict 'subs' ;
+Fred ;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at - line 4.
+Execution of - aborted due to compilation errors.
+########
+
+# strict subs - error
+use strict ;
+Fred ;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at - line 4.
+Execution of - aborted due to compilation errors.
+########
+
+# strict subs - no error
+use strict 'subs' ;
+sub Fred {}
+Fred ;
+EXPECT
+
+########
+
+# Check compile time scope of strict subs pragma
+use strict 'subs' ;
+{
+    no strict ;
+    my $a = Fred ;
+}
+my $a = Fred ;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at - line 8.
+Execution of - aborted due to compilation errors.
+########
+
+# Check compile time scope of strict subs pragma
+no strict;
+{
+    use strict 'subs' ;
+    my $a = Fred ;
+}
+my $a = Fred ;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at - line 6.
+Execution of - aborted due to compilation errors.
+########
+
+# Check compile time scope of strict vars pragma
+use strict 'vars' ;
+{
+    no strict ;
+    $joe = 1 ;
+}
+$joe = 1 ;
+EXPECT
+Variable "$joe" is not imported at - line 8.
+Global symbol "$joe" requires explicit package name at - line 8.
+Execution of - aborted due to compilation errors.
+########
+
+# Check compile time scope of strict vars pragma
+no strict;
+{
+    use strict 'vars' ;
+    $joe = 1 ;
+}
+$joe = 1 ;
+EXPECT
+Global symbol "$joe" requires explicit package name at - line 6.
+Execution of - aborted due to compilation errors.
+########
+
+# Check runtime scope of strict refs pragma
+use strict 'refs';
+my $fred ;
+my $b = "fred" ;
+{
+    no strict ;
+    my $a = $$b ;
+}
+my $a = $$b ;
+EXPECT
+Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 10.
+########
+
+# Check runtime scope of strict refs pragma
+no strict ;
+my $fred ;
+my $b = "fred" ;
+{
+    use strict 'refs' ;
+    my $a = $$b ;
+}
+my $a = $$b ;
+EXPECT
+Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 8.
+########
+
+# Check runtime scope of strict refs pragma
+no strict ;
+my $fred ;
+my $b = "fred" ;
+{
+    use strict 'refs' ;
+    $a = sub { my $c = $$b ; }
+}
+&$a ;
+EXPECT
+Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 8.
+########
+
+use strict 'subs' ;
+my $a = Fred ;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at - line 3.
+Execution of - aborted due to compilation errors.
+########
+
+--FILE-- abc
+my $a = Fred ;
+1;
+--FILE-- 
+use strict 'subs' ;
+require "./abc";
+EXPECT
+
+########
+
+--FILE-- abc
+use strict 'subs' ;
+1;
+--FILE-- 
+require "./abc";
+my $a = Fred ;
+EXPECT
+
+########
+
+--FILE-- abc
+use strict 'subs' ;
+my $a = Fred ;
+1;
+--FILE-- 
+Fred ;
+require "./abc";
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at ./abc line 2.
+Compilation failed in require at - line 2.
+########
+
+--FILE-- abc.pm
+use strict 'subs' ;
+my $a = Fred ;
+1;
+--FILE-- 
+Fred ;
+use abc;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at abc.pm line 2.
+Compilation failed in require at - line 2.
+BEGIN failed--compilation aborted at - line 2.
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval {
+    my $a = Fred ;
+};
+print STDERR $@;
+my $a = Fred ;
+EXPECT
+
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval {
+    use strict 'subs' ;
+    my $a = Fred ;
+};
+print STDERR $@;
+my $a = Fred ;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at - line 6.
+Execution of - aborted due to compilation errors.
+########
+
+# Check scope of pragma with eval
+use strict 'subs' ;
+eval {
+    my $a = Fred ;
+};
+print STDERR $@;
+my $a = Fred ;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at - line 5.
+Bareword "Fred" not allowed while "strict subs" in use at - line 8.
+Execution of - aborted due to compilation errors.
+########
+
+# Check scope of pragma with eval
+use strict 'subs' ;
+eval {
+    no strict ;
+    my $a = Fred ;
+};
+print STDERR $@;
+my $a = Fred ;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at - line 9.
+Execution of - aborted due to compilation errors.
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval '
+    Fred ;
+'; print STDERR $@ ;
+Fred ;
+EXPECT
+
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval q[ 
+    use strict 'subs' ;
+    Fred ;
+]; print STDERR $@;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at (eval 1) line 3.
+########
+
+# Check scope of pragma with eval
+use strict 'subs' ;
+eval '
+    Fred ;
+'; print STDERR $@ ;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at (eval 1) line 2.
+########
+
+# Check scope of pragma with eval
+use strict 'subs' ;
+eval '
+    no strict ;
+    my $a = Fred ;
+'; print STDERR $@;
+my $a = Fred ;
+EXPECT
+Bareword "Fred" not allowed while "strict subs" in use at - line 8.
+Execution of - aborted due to compilation errors.
diff --git a/contrib/perl5/t/pragma/strict-vars b/contrib/perl5/t/pragma/strict-vars
new file mode 100644
index 0000000..42107fa
--- /dev/null
+++ b/contrib/perl5/t/pragma/strict-vars
@@ -0,0 +1,223 @@
+Check strict vars functionality
+
+__END__
+
+# no strict, should build & run ok.
+Fred ;
+my $fred ;
+$b = "fred" ;
+$a = $$b ;
+EXPECT
+
+########
+
+use strict qw(subs refs) ;
+$fred ;
+EXPECT
+
+########
+
+use strict ;
+no strict 'vars' ;
+$fred ;
+EXPECT
+
+########
+
+# strict vars - no error
+use strict 'vars' ;
+use vars qw( $freddy) ;
+local $abc::joe ;
+my $fred ;
+my $b = \$fred ;
+$Fred::ABC = 1 ;
+$freddy = 2 ;
+EXPECT
+
+########
+
+# strict vars - error
+use strict ;
+$fred ;
+EXPECT
+Global symbol "$fred" requires explicit package name at - line 4.
+Execution of - aborted due to compilation errors.
+########
+
+# strict vars - error
+use strict 'vars' ;
+$fred ;
+EXPECT
+Global symbol "$fred" requires explicit package name at - line 4.
+Execution of - aborted due to compilation errors.
+########
+
+# strict vars - error
+use strict 'vars' ;
+local $fred ;
+EXPECT
+Global symbol "$fred" requires explicit package name at - line 4.
+Execution of - aborted due to compilation errors.
+########
+
+# Check compile time scope of strict vars pragma
+use strict 'vars' ;
+{
+    no strict ;
+    $joe = 1 ;
+}
+$joe = 1 ;
+EXPECT
+Variable "$joe" is not imported at - line 8.
+Global symbol "$joe" requires explicit package name at - line 8.
+Execution of - aborted due to compilation errors.
+########
+
+# Check compile time scope of strict vars pragma
+no strict;
+{
+    use strict 'vars' ;
+    $joe = 1 ;
+}
+$joe = 1 ;
+EXPECT
+Global symbol "$joe" requires explicit package name at - line 6.
+Execution of - aborted due to compilation errors.
+########
+
+--FILE-- abc
+$joe = 1 ;
+1;
+--FILE-- 
+use strict 'vars' ;
+require "./abc";
+EXPECT
+
+########
+
+--FILE-- abc
+use strict 'vars' ;
+1;
+--FILE-- 
+require "./abc";
+$joe = 1 ;
+EXPECT
+
+########
+
+--FILE-- abc
+use strict 'vars' ;
+$joe = 1 ;
+1;
+--FILE-- 
+$joe = 1 ;
+require "./abc";
+EXPECT
+Variable "$joe" is not imported at ./abc line 2.
+Global symbol "$joe" requires explicit package name at ./abc line 2.
+Compilation failed in require at - line 2.
+########
+
+--FILE-- abc.pm
+use strict 'vars' ;
+$joe = 1 ;
+1;
+--FILE-- 
+$joe = 1 ;
+use abc;
+EXPECT
+Variable "$joe" is not imported at abc.pm line 2.
+Global symbol "$joe" requires explicit package name at abc.pm line 2.
+Compilation failed in require at - line 2.
+BEGIN failed--compilation aborted at - line 2.
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval {
+    $joe = 1 ;
+};
+print STDERR $@;
+$joe = 1 ;
+EXPECT
+
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval {
+    use strict 'vars' ;
+    $joe = 1 ;
+};
+print STDERR $@;
+$joe = 1 ;
+EXPECT
+Global symbol "$joe" requires explicit package name at - line 6.
+Execution of - aborted due to compilation errors.
+########
+
+# Check scope of pragma with eval
+use strict 'vars' ;
+eval {
+    $joe = 1 ;
+};
+print STDERR $@;
+$joe = 1 ;
+EXPECT
+Global symbol "$joe" requires explicit package name at - line 5.
+Execution of - aborted due to compilation errors.
+########
+
+# Check scope of pragma with eval
+use strict 'vars' ;
+eval {
+    no strict ;
+    $joe = 1 ;
+};
+print STDERR $@;
+$joe = 1 ;
+EXPECT
+Variable "$joe" is not imported at - line 9.
+Global symbol "$joe" requires explicit package name at - line 9.
+Execution of - aborted due to compilation errors.
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval '
+    $joe = 1 ;
+'; print STDERR $@ ;
+$joe = 1 ;
+EXPECT
+
+########
+
+# Check scope of pragma with eval
+no strict ;
+eval q[ 
+    use strict 'vars' ;
+    $joe = 1 ;
+]; print STDERR $@;
+EXPECT
+Global symbol "$joe" requires explicit package name at (eval 1) line 3.
+########
+
+# Check scope of pragma with eval
+use strict 'vars' ;
+eval '
+    $joe = 1 ;
+'; print STDERR $@ ;
+EXPECT
+Global symbol "$joe" requires explicit package name at (eval 1) line 2.
+########
+
+# Check scope of pragma with eval
+use strict 'vars' ;
+eval '
+    no strict ;
+    $joe = 1 ;
+'; print STDERR $@;
+$joe = 1 ;
+EXPECT
+Global symbol "$joe" requires explicit package name at - line 8.
+Execution of - aborted due to compilation errors.
diff --git a/contrib/perl5/t/pragma/strict.t b/contrib/perl5/t/pragma/strict.t
new file mode 100755
index 0000000..fc32820
--- /dev/null
+++ b/contrib/perl5/t/pragma/strict.t
@@ -0,0 +1,93 @@
+#!./perl 
+
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+    $ENV{PERL5LIB} = '../lib';
+}
+
+$| = 1;
+
+my $Is_VMS = $^O eq 'VMS';
+my $Is_MSWin32 = $^O eq 'MSWin32';
+my $tmpfile = "tmp0000";
+my $i = 0 ;
+1 while -f ++$tmpfile;
+END { if ($tmpfile) { 1 while unlink $tmpfile; } }
+
+my @prgs = () ;
+
+foreach (sort glob("pragma/strict-*")) {
+
+    next if /(~|\.orig)$/;
+
+    open F, "<$_" or die "Cannot open $_: $!\n" ;
+    while (<F>) {
+	last if /^__END__/ ;
+    }
+
+    {
+        local $/ = undef;
+        @prgs = (@prgs, split "\n########\n", <F>) ;
+    }
+    close F ;
+}
+
+undef $/;
+
+print "1..", scalar @prgs, "\n";
+ 
+ 
+for (@prgs){
+    my $switch = "";
+    my @temps = () ;
+    if (s/^\s*-\w+//){
+        $switch = $&;
+    }
+    my($prog,$expected) = split(/\nEXPECT\n/, $_);
+    if ( $prog =~ /--FILE--/) {
+        my(@files) = split(/\n--FILE--\s*([^\s\n]*)\s*\n/, $prog) ;
+	shift @files ;
+	die "Internal error test $i didn't split into pairs, got " . 
+		scalar(@files) . "[" . join("%%%%", @files) ."]\n"
+	    if @files % 2 ;
+	while (@files > 2) {
+	    my $filename = shift @files ;
+	    my $code = shift @files ;
+    	    push @temps, $filename ;
+	    open F, ">$filename" or die "Cannot open $filename: $!\n" ;
+	    print F $code ;
+	    close F ;
+	}
+	shift @files ;
+	$prog = shift @files ;
+    }
+    open TEST, ">$tmpfile";
+    print TEST $prog,"\n";
+    close TEST;
+    my $results = $Is_VMS ?
+                  `MCR $^X $switch $tmpfile` :
+		  $Is_MSWin32 ?
+                  `.\\perl -I../lib $switch $tmpfile 2>&1` :
+                  `sh -c './perl $switch $tmpfile' 2>&1`;
+    my $status = $?;
+    $results =~ s/\n+$//;
+    # allow expected output to be written as if $prog is on STDIN
+    $results =~ s/tmp\d+/-/g;
+    $results =~ s/\n%[A-Z]+-[SIWEF]-.*$// if $Is_VMS;  # clip off DCL status msg
+    $expected =~ s/\n+$//;
+    my $prefix = ($results =~ s/^PREFIX\n//) ;
+    if ( $results =~ s/^SKIPPED\n//) {
+	print "$results\n" ;
+    }
+    elsif (($prefix and $results !~ /^\Q$expected/) or
+	   (!$prefix and $results ne $expected)){
+        print STDERR "PROG: $switch\n$prog\n";
+        print STDERR "EXPECTED:\n$expected\n";
+        print STDERR "GOT:\n$results\n";
+        print "not ";
+    }
+    print "ok ", ++$i, "\n";
+    foreach (@temps) 
+	{ unlink $_ if $_ } 
+}
diff --git a/contrib/perl5/t/pragma/subs.t b/contrib/perl5/t/pragma/subs.t
new file mode 100755
index 0000000..680564f
--- /dev/null
+++ b/contrib/perl5/t/pragma/subs.t
@@ -0,0 +1,133 @@
+#!./perl 
+
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+    $ENV{PERL5LIB} = '../lib';
+}
+
+$| = 1;
+undef $/;
+my @prgs = split "\n########\n", <DATA>;
+print "1..", scalar @prgs, "\n";
+
+my $Is_VMS = $^O eq 'VMS';
+my $Is_MSWin32 = $^O eq 'MSWin32';
+my $tmpfile = "tmp0000";
+my $i = 0 ;
+1 while -f ++$tmpfile;
+END {  if ($tmpfile) { 1 while unlink $tmpfile} }
+
+for (@prgs){
+    my $switch = "";
+    my @temps = () ;
+    if (s/^\s*-\w+//){
+        $switch = $&;
+    }
+    my($prog,$expected) = split(/\nEXPECT\n/, $_);
+    if ( $prog =~ /--FILE--/) {
+        my(@files) = split(/\n--FILE--\s*([^\s\n]*)\s*\n/, $prog) ;
+	shift @files ;
+	die "Internal error test $i didn't split into pairs, got " . 
+		scalar(@files) . "[" . join("%%%%", @files) ."]\n"
+	    if @files % 2 ;
+	while (@files > 2) {
+	    my $filename = shift @files ;
+	    my $code = shift @files ;
+    	    push @temps, $filename ;
+	    open F, ">$filename" or die "Cannot open $filename: $!\n" ;
+	    print F $code ;
+	    close F ;
+	}
+	shift @files ;
+	$prog = shift @files ;
+    }
+    open TEST, ">$tmpfile";
+    print TEST $prog,"\n";
+    close TEST;
+    my $results = $Is_VMS ?
+                  `MCR $^X $switch $tmpfile` :
+		  $Is_MSWin32 ?
+                  `.\\perl -I../lib $switch $tmpfile 2>&1` :
+                  `sh -c './perl $switch $tmpfile' 2>&1`;
+    my $status = $?;
+    $results =~ s/\n+$//;
+    # allow expected output to be written as if $prog is on STDIN
+    $results =~ s/tmp\d+/-/g;
+    $results =~ s/\n%[A-Z]+-[SIWEF]-.*$// if $Is_VMS;  # clip off DCL status msg
+    $results =~ s/Syntax/syntax/;  # non-standard yacc
+    $expected =~ s/\n+$//;
+    my $prefix = ($results =~ s/^PREFIX\n//) ;
+    if ( $results =~ s/^SKIPPED\n//) {
+	print "$results\n" ;
+    }
+    elsif (($prefix and $results !~ /^\Q$expected/) or
+	   (!$prefix and $results ne $expected)){
+        print STDERR "PROG: $switch\n$prog\n";
+        print STDERR "EXPECTED:\n$expected\n";
+        print STDERR "GOT:\n$results\n";
+        print "not ";
+    }
+    print "ok ", ++$i, "\n";
+    foreach (@temps) 
+	{ unlink $_ if $_ } 
+}
+
+__END__
+
+# Error - not predeclaring a sub
+Fred 1,2 ;
+sub Fred {}
+EXPECT
+Number found where operator expected at - line 3, near "Fred 1"
+	(Do you need to predeclare Fred?)
+syntax error at - line 3, near "Fred 1"
+Execution of - aborted due to compilation errors.
+########
+
+# Error - not predeclaring a sub in time
+Fred 1,2 ;
+use subs qw( Fred ) ;
+sub Fred {}
+EXPECT
+Number found where operator expected at - line 3, near "Fred 1"
+	(Do you need to predeclare Fred?)
+syntax error at - line 3, near "Fred 1"
+BEGIN not safe after errors--compilation aborted at - line 4.
+########
+
+# AOK
+use subs qw( Fred) ;
+Fred 1,2 ;
+sub Fred { print $_[0] + $_[1], "\n" }
+EXPECT
+3
+########
+
+# override a built-in function
+use subs qw( open ) ;
+open 1,2 ;
+sub open { print $_[0] + $_[1], "\n" }
+EXPECT
+3
+########
+
+--FILE-- abc
+Fred 1,2 ;
+1;
+--FILE--
+use subs qw( Fred ) ;
+require "./abc" ;
+sub Fred { print $_[0] + $_[1], "\n" }
+EXPECT
+3
+########
+
+# check that it isn't affected by block scope
+{
+    use subs qw( Fred ) ;
+}
+Fred 1, 2;
+sub Fred { print $_[0] + $_[1], "\n" }
+EXPECT
+3
diff --git a/contrib/perl5/t/pragma/warn-1global b/contrib/perl5/t/pragma/warn-1global
new file mode 100644
index 0000000..07b5bc8
--- /dev/null
+++ b/contrib/perl5/t/pragma/warn-1global
@@ -0,0 +1,151 @@
+Check existing $^W functionality
+
+__END__
+
+# warnable code, warnings disabled
+$a =+ 3 ;
+EXPECT
+
+########
+-w
+# warnable code, warnings enabled via command line switch
+$a =+ 3 ;
+EXPECT
+Reversed += operator at - line 3.
+########
+#! perl -w
+# warnable code, warnings enabled via #! line
+$a =+ 3 ;
+EXPECT
+Reversed += operator at - line 3.
+########
+
+# warnable code, warnings enabled via compile time $^W
+BEGIN { $^W = 1 }
+$a =+ 3 ;
+EXPECT
+Reversed += operator at - line 4.
+########
+
+# compile-time warnable code, warnings enabled via runtime $^W
+# so no warning printed.
+$^W = 1 ;
+$a =+ 3 ;
+EXPECT
+
+########
+
+# warnable code, warnings enabled via runtime $^W
+$^W = 1 ;
+my $b ; chop $b ;
+EXPECT
+Use of uninitialized value at - line 4.
+########
+
+# warnings enabled at compile time, disabled at run time
+BEGIN { $^W = 1 }
+$^W = 0 ;
+my $b ; chop $b ;
+EXPECT
+
+########
+
+# warnings disabled at compile time, enabled at run time
+BEGIN { $^W = 0 }
+$^W = 1 ;
+my $b ; chop $b ;
+EXPECT
+Use of uninitialized value at - line 5.
+########
+-w
+--FILE-- abcd
+my $b ; chop $b ;
+1 ;
+--FILE-- 
+require "./abcd";
+EXPECT
+Use of uninitialized value at ./abcd line 1.
+########
+
+--FILE-- abcd
+my $b ; chop $b ;
+1 ;
+--FILE-- 
+#! perl -w
+require "./abcd";
+EXPECT
+Use of uninitialized value at ./abcd line 1.
+########
+
+--FILE-- abcd
+my $b ; chop $b ;
+1 ;
+--FILE-- 
+$^W =1 ;
+require "./abcd";
+EXPECT
+Use of uninitialized value at ./abcd line 1.
+########
+
+--FILE-- abcd
+$^W = 0;
+my $b ; chop $b ;
+1 ;
+--FILE-- 
+$^W =1 ;
+require "./abcd";
+EXPECT
+
+########
+
+--FILE-- abcd
+$^W = 1;
+1 ;
+--FILE-- 
+$^W =0 ;
+require "./abcd";
+my $b ; chop $b ;
+EXPECT
+Use of uninitialized value at - line 3.
+########
+
+$^W = 1;
+eval "my $b ; chop $b ;" ;
+EXPECT
+Use of uninitialized value at - line 3.
+Use of uninitialized value at - line 3.
+########
+
+eval "$^W = 1;" ;
+my $b ; chop $b ;
+EXPECT
+
+########
+
+eval {$^W = 1;} ;
+my $b ; chop $b ;
+EXPECT
+Use of uninitialized value at - line 3.
+########
+
+{
+    local ($^W) = 1;
+}
+my $b ; chop $b ;
+EXPECT
+
+########
+
+my $a ; chop $a ;
+{
+    local ($^W) = 1;
+    my $b ; chop $b ;
+}
+my $c ; chop $c ;
+EXPECT
+Use of uninitialized value at - line 5.
+########
+-w
+-e undef
+EXPECT
+Use of uninitialized value at - line 2.
diff --git a/contrib/perl5/t/pragma/warning.t b/contrib/perl5/t/pragma/warning.t
new file mode 100755
index 0000000..fa0301e
--- /dev/null
+++ b/contrib/perl5/t/pragma/warning.t
@@ -0,0 +1,94 @@
+#!./perl 
+
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+    $ENV{PERL5LIB} = '../lib';
+}
+
+$| = 1;
+
+my $Is_VMS = $^O eq 'VMS';
+my $Is_MSWin32 = $^O eq 'MSWin32';
+my $tmpfile = "tmp0000";
+my $i = 0 ;
+1 while -f ++$tmpfile;
+END {  if ($tmpfile) { 1 while unlink $tmpfile} }
+
+my @prgs = () ;
+
+foreach (sort glob("pragma/warn-*")) {
+
+    next if /(~|\.orig)$/;
+
+    open F, "<$_" or die "Cannot open $_: $!\n" ;
+    while (<F>) {
+	last if /^__END__/ ;
+    }
+
+    {
+        local $/ = undef;
+        @prgs = (@prgs, split "\n########\n", <F>) ;
+    }
+    close F ;
+}
+
+undef $/;
+
+print "1..", scalar @prgs, "\n";
+ 
+ 
+for (@prgs){
+    my $switch = "";
+    my @temps = () ;
+    if (s/^\s*-\w+//){
+        $switch = $&;
+        $switch =~ s/(-\S*[A-Z]\S*)/"-$1"/ if $Is_VMS; # protect uc switches
+    }
+    my($prog,$expected) = split(/\nEXPECT\n/, $_);
+    if ( $prog =~ /--FILE--/) {
+        my(@files) = split(/\n--FILE--\s*([^\s\n]*)\s*\n/, $prog) ;
+	shift @files ;
+	die "Internal error test $i didn't split into pairs, got " . 
+		scalar(@files) . "[" . join("%%%%", @files) ."]\n"
+	    if @files % 2 ;
+	while (@files > 2) {
+	    my $filename = shift @files ;
+	    my $code = shift @files ;
+    	    push @temps, $filename ;
+	    open F, ">$filename" or die "Cannot open $filename: $!\n" ;
+	    print F $code ;
+	    close F ;
+	}
+	shift @files ;
+	$prog = shift @files ;
+    }
+    open TEST, ">$tmpfile";
+    print TEST $prog,"\n";
+    close TEST;
+    my $results = $Is_VMS ?
+                  `MCR $^X $switch $tmpfile` :
+		  $Is_MSWin32 ?
+                  `.\\perl -I../lib $switch $tmpfile 2>&1` :
+                  `sh -c './perl $switch $tmpfile' 2>&1`;
+    my $status = $?;
+    $results =~ s/\n+$//;
+    # allow expected output to be written as if $prog is on STDIN
+    $results =~ s/tmp\d+/-/g;
+    $results =~ s/\n%[A-Z]+-[SIWEF]-.*$// if $Is_VMS;  # clip off DCL status msg
+    $expected =~ s/\n+$//;
+    my $prefix = ($results =~ s/^PREFIX\n//) ;
+    if ( $results =~ s/^SKIPPED\n//) {
+	print "$results\n" ;
+    }
+    elsif (($prefix and $results !~ /^\Q$expected/) or
+	   (!$prefix and $results ne $expected)){
+        print STDERR "PROG: $switch\n$prog\n";
+        print STDERR "EXPECTED:\n$expected\n";
+        print STDERR "GOT:\n$results\n";
+        print "not ";
+    }
+    print "ok ", ++$i, "\n";
+    foreach (@temps) 
+	{ unlink $_ if $_ } 
+}