3 use vars qw($Is_W32 $Is_OS2 $Is_Cygwin $Is_NetWare $Needs_Write);
4 use Config; # Remember, this is running using an existing perl
8 # Common functions needed by the regen scripts
10 $Is_W32 = $^O eq 'MSWin32';
11 $Is_OS2 = $^O eq 'os2';
12 $Is_Cygwin = $^O eq 'cygwin';
13 $Is_NetWare = $Config{osname} eq 'NetWare';
18 $Needs_Write = $Is_OS2 || $Is_W32 || $Is_Cygwin || $Is_NetWare;
25 foreach $name (@names) {
27 chmod 0777, $name if $Needs_Write;
28 ( CORE::unlink($name) and ++$cnt
29 or warn "Couldn't unlink $name: $!\n" );
34 sub safer_rename_silent {
37 # Some dosish systems can't rename over an existing file:
39 chmod 0600, $from if $Needs_Write;
43 sub rename_if_different {
46 if (compare($from, $to) == 0) {
47 warn "no changes between '$from' & '$to'\n";
51 warn "changed '$from' to '$to'\n";
52 safer_rename_silent($from, $to) or die "renaming $from to $to: $!";
55 # Saf*er*, but not totally safe. And assumes always open for output.
59 open $fh, ">$name" or die "Can't create $name: $!";
60 *{$fh}->{SCALAR} = $name;
67 close $fh or die 'Error closing ' . *{$fh}->{SCALAR} . ": $!";