no_comment

1 files changed, 2 insertions, 1 deletions

diff --git a/perl-install/common.pm b/perl-install/common.pm
index f983b1bfd..31caedba1 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(__ even odd min max sqr sum and_ or_ sign product bool invbool listlength bool2text text2bool to_int to_float ikeys member divide is_empty_array_ref is_empty_hash_ref add2hash add2hash_ set_new set_add round round_up round_down first second top uniq translate untranslate warp_text formatAlaTeX formatLines) ],
+    common     => [ qw(__ even odd min max sqr sum and_ or_ sign product bool invbool listlength bool2text text2bool to_int to_float ikeys member divide is_empty_array_ref is_empty_hash_ref add2hash add2hash_ set_new set_add round round_up round_down first second top uniq translate untranslate warp_text formatAlaTeX formatLines deref) ],
     functional => [ qw(fold_left compose map_index grep_index map_each grep_each map_tab_hash mapn mapn_ difference2 before_leaving catch_cdie cdie) ],
     file       => [ qw(dirname basename touch all glob_ cat_ output symlinkf chop_ mode typeFromMagic) ],
     system     => [ qw(sync makedev unmakedev psizeof strcpy gettimeofday syscall_ salt getVarsFromSh setVarsInSh setVarsInCsh substInFile availableRam availableMemory removeXiBSuffix template2file) ],
@@ -67,6 +67,7 @@ sub text2bool { my $t = lc($_[0]); $t eq "true" || $t eq "yes" ? 1 : 0 }
 sub strcpy { substr($_[0], $_[2] || 0, length $_[1]) = $_[1] }
 sub cat_ { local *F; open F, $_[0] or $_[1] ? die "cat of file $_[0] failed: $!\n" : return; my @l = <F>; wantarray ? @l : join '', @l }
 sub output { my $f = shift; local *F; open F, ">$f" or die "output in file $f failed: $!\n"; print F foreach @_; }
+sub deref { ref $_[0] eq "ARRAY" ? @{$_[0]} : ref $_[0] eq "HASH" ? %{$_[0]} : $_[0] }
 sub linkf { unlink $_[1]; link $_[0], $_[1] }
 sub symlinkf { unlink $_[1]; symlink $_[0], $_[1] }
 sub chop_ { map { my $l = $_; chomp $l; $l } @_ }