freebsd-dev/contrib/perl5/utils/perlbc.PL
2000-06-25 11:04:01 +00:00

81 lines
2.0 KiB
Perl

#!/usr/local/bin/perl
use Config;
use File::Basename qw(&basename &dirname);
use Cwd;
# 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}.
# Wanted: $archlibexp
# 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: $!";
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.
print OUT <<"!GROK!THIS!";
$Config{startperl}
eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
if \$running_under_some_shell;
!GROK!THIS!
# In the following, perl variables are not expanded during extraction.
print OUT <<'!NO!SUBS!';
use strict;
use warning;
no warning qw(once);
use Config;
require ByteLoader;
foreach my $infile (@ARGV)
{
if ($infile =~ /\.p[ml]$/)
{
my $outfile = $infile . "c";
open(OUT,"> $outfile") || die "Can't open $outfile: $!";
if ($infile =~ /\.pl$/)
{
print OUT "$Config{startperl}\n";
print OUT " eval 'exec $Config{perlpath} -S \$0 \${1+\"\$@\"}'\n";
print OUT " if \$running_under_some_shell;\n\n";
}
print OUT "use ByteLoader $ByteLoader::VERSION;\n";
close(OUT);
print "$^X -MO=Bytecode $infile >> $outfile\n";
system("$^X -MO=Bytecode $infile >> $outfile");
}
else
{
warn "Don't know how to byte compile $infile";
}
}
!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;