*** empty log message ***

1 files changed, 6 insertions, 1 deletions

diff --git a/perl-install/common.pm b/perl-install/common.pm
index c15aafdae..feec2e844 100644
--- a/perl-install/common.pm
+++ b/perl-install/common.pm
@@ -6,7 +6,7 @@ use vars qw(@ISA %EXPORT_TAGS @EXPORT_OK $printable_chars $sizeof_int $bitof_int
 
 @ISA = qw(Exporter);
 %EXPORT_TAGS = (
-    common => [ qw(_ __ min max bool member divide is_empty_array_ref round_up round_down first top translate) ],
+    common => [ qw(_ __ min max bool member divide is_empty_array_ref set_new set_add round_up round_down first second top uniq translate) ],
     file => [ qw(dirname basename all glob_ cat_ chop_ mode) ],
     system => [ qw(sync makedev unmakedev psizeof strcpy gettimeofday syscall_ crypt_) ],
     constant => [ qw($printable_chars $sizeof_int $bitof_int $SECTORSIZE) ],
@@ -25,7 +25,9 @@ sub __ { $_[0] }
 sub min { my $min = shift; grep { $_ < $min and $min = $_; } @_; $min }
 sub max { my $max = shift; grep { $_ > $max and $max = $_; } @_; $max }
 sub first { $_[0] }
+sub second { $_[1] }
 sub top { $_[$#_] }
+sub uniq { my %l; @l{@_} = (); keys %l }
 sub member { my $e = shift; foreach (@_) { $e eq $_ and return 1 } 0 }
 sub dirname { @_ == 1 or die "usage: dirname <name>\n"; local $_ = shift; s|[^/]*/*\s*$||; s|(.)/*$|$1|; $_ || '.' }
 sub basename { @_ == 1 or die "usage: basename <name>\n"; local $_ = shift; s|/*\s*$||; s|.*/||; $_ }
@@ -38,6 +40,9 @@ sub round_up { my ($i, $r) = @_; $i += $r - ($i + $r - 1) % $r - 1; }
 sub round_down { my ($i, $r) = @_; $i -= $i % $r; }
 sub is_empty_array_ref { my $a = shift; !defined $a || @$a == 0 }
 
+sub set_new(@) { my %l; @l{@_} = undef; { list => [ @_ ], hash => \%l } }
+sub set_add($@) { my $o = shift; foreach (@_) { exists $o->{hash}->{$_} and next; push @{$o->{list}}, $_; $o->{hash}->{$_} = undef } }
+
 sub sync { syscall_('sync') }
 sub gettimeofday { my $t = pack "LL"; syscall_('gettimeofday', $t, 0) or die "gettimeofday failed: $!\n"; unpack("LL", $t) }