freebsd-skq/contrib/perl5/utils/perlcc.PL

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#!/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 Config;
use strict;
use FileHandle;
use File::Basename qw(&basename &dirname);
use Cwd;
use Getopt::Long;
$Getopt::Long::bundling_override = 1;
$Getopt::Long::passthrough = 0;
$Getopt::Long::ignore_case = 0;
my $options = {};
my $_fh;
main();
sub main
{
GetOptions
(
$options, "L:s",
"I:s",
"C:s",
"o:s",
"e:s",
"regex:s",
"verbose:s",
"log:s",
"argv:s",
"gen",
"sav",
"run",
"prog",
"mod"
);
my $key;
local($") = "|";
_usage() if (!_checkopts());
push(@ARGV, _maketempfile()) if ($options->{'e'});
_usage() if (!@ARGV);
my $file;
foreach $file (@ARGV)
{
_print("
--------------------------------------------------------------------------------
Compiling $file:
--------------------------------------------------------------------------------
", 36 );
_doit($file);
}
}
sub _doit
{
my ($file) = @_;
my ($program_ext, $module_ext) = _getRegexps();
my ($obj, $objfile, $so, $type);
if (
(($file =~ m"@$program_ext") && ($file !~ m"@$module_ext"))
|| (defined($options->{'prog'}) || defined($options->{'run'}))
)
{
$objfile = ($options->{'C'}) ? $options->{'C'} : "$file.c";
$type = 'program';
$obj = ($options->{'o'})? $options->{'o'} :
_getExecutable( $file,$program_ext);
return() if (!$obj);
}
elsif (($file =~ m"@$module_ext") || ($options->{'mod'}))
{
die "Shared objects are not supported on Win32 yet!!!!\n"
if ($Config{'osname'} eq 'MSWin32');
$obj = ($options->{'o'})? $options->{'o'} :
_getExecutable($file, $module_ext);
$so = "$obj.$Config{so}";
$type = 'sharedlib';
return() if (!$obj);
$objfile = ($options->{'C'}) ? $options->{'C'} : "$file.c";
}
else
{
_error("noextension", $file, $program_ext, $module_ext);
return();
}
if ($type eq 'program')
{
_print("Making C($objfile) for $file!\n", 36 );
my $errcode = _createCode($objfile, $file);
(_print( "ERROR: In generating code for $file!\n", -1), return())
if ($errcode);
_print("Compiling C($obj) for $file!\n", 36 ) if (!$options->{'gen'});
$errcode = _compileCode($file, $objfile, $obj)
if (!$options->{'gen'});
if ($errcode)
{
_print( "ERROR: In compiling code for $objfile !\n", -1);
my $ofile = File::Basename::basename($objfile);
$ofile =~ s"\.c$"\.o"s;
_removeCode("$ofile");
return()
}
_runCode($obj) if ($options->{'run'});
_removeCode($objfile) if (!$options->{'sav'} ||
($options->{'e'} && !$options->{'C'}));
_removeCode($file) if ($options->{'e'});
_removeCode($obj) if (($options->{'e'}
&& !$options->{'sav'}
&& !$options->{'o'})
|| ($options->{'run'} && !$options->{'sav'}));
}
else
{
_print( "Making C($objfile) for $file!\n", 36 );
my $errcode = _createCode($objfile, $file, $obj);
(_print( "ERROR: In generating code for $file!\n", -1), return())
if ($errcode);
_print( "Compiling C($so) for $file!\n", 36 ) if (!$options->{'gen'});
my $errorcode =
_compileCode($file, $objfile, $obj, $so ) if (!$options->{'gen'});
(_print( "ERROR: In compiling code for $objfile!\n", -1), return())
if ($errcode);
}
}
sub _getExecutable
{
my ($sourceprog, $ext) = @_;
my ($obj);
if (defined($options->{'regex'}))
{
eval("(\$obj = \$sourceprog) =~ $options->{'regex'}");
return(0) if (_error('badeval', $@));
return(0) if (_error('equal', $obj, $sourceprog));
}
elsif (defined ($options->{'ext'}))
{
($obj = $sourceprog) =~ s"@$ext"$options->{ext}"g;
return(0) if (_error('equal', $obj, $sourceprog));
}
elsif (defined ($options->{'run'}))
{
$obj = "perlc$$";
}
else
{
($obj = $sourceprog) =~ s"@$ext""g;
return(0) if (_error('equal', $obj, $sourceprog));
}
return($obj);
}
sub _createCode
{
my ( $generated_cfile, $file, $final_output ) = @_;
my $return;
local($") = " -I";
if (@_ == 2) # compiling a program
{
_print( "$^X -I@INC -MO=CC,-o$generated_cfile $file\n", 36);
$return = _run("$ -I@INC -MO=CC,-o$generated_cfile $file", 9);
$return;
}
else # compiling a shared object
{
_print(
"$ -I@INC -MO=CC,-m$final_output,-o$generated_cfile $file\n", 36);
$return =
_run("$ -I@INC -MO=CC,-m$final_output,-o$generated_cfile $file", 9);
$return;
}
}
sub _compileCode
{
my ($sourceprog, $generated_cfile, $output_executable, $shared_object) = @_;
my @return;
if (@_ == 3) # just compiling a program
{
$return[0] =
_ccharness('static', $sourceprog, "-o", $output_executable, $generated_cfile);
$return[0];
}
else
{
my $object_file = $generated_cfile;
$object_file =~ s"\.c$"$Config{_o}";
$return[0] = _ccharness('compile', $sourceprog, "-c", $generated_cfile);
$return[1] = _ccharness
(
'dynamic',
$sourceprog, "-o",
$shared_object, $object_file
);
return(1) if (grep ($_, @return));
return(0);
}
}
sub _runCode
{
my ($executable) = @_;
_print("$executable $options->{'argv'}\n", 36);
_run("$executable $options->{'argv'}", -1 );
}
sub _removeCode
{
my ($file) = @_;
unlink($file) if (-e $file);
}
sub _ccharness
{
my $type = shift;
my (@args) = @_;
local($") = " ";
my $sourceprog = shift(@args);
my ($libdir, $incdir);
if (-d "$Config{installarchlib}/CORE")
{
$libdir = "-L$Config{installarchlib}/CORE";
$incdir = "-I$Config{installarchlib}/CORE";
}
else
{
$libdir = "-L.. -L.";
$incdir = "-I.. -I.";
}
$libdir .= " -L$options->{L}" if (defined($options->{L}));
$incdir .= " -I$options->{L}" if (defined($options->{L}));
my $linkargs = '';
if (!grep(/^-[cS]$/, @args))
{
my $lperl = $^O eq 'os2' ? '-llibperl' : '-lperl';
my $flags = $type eq 'dynamic' ? $Config{lddlflags} : $Config{ldflags};
$linkargs = "$flags $libdir $lperl @Config{libs}";
}
my @sharedobjects = _getSharedObjects($sourceprog);
my $cccmd =
"$Config{cc} @Config{qw(ccflags optimize)} $incdir @sharedobjects @args $linkargs";
_print ("$cccmd\n", 36);
_run("$cccmd", 18 );
}
sub _getSharedObjects
{
my ($sourceprog) = @_;
my ($tmpfile, $incfile);
my (@return);
local($") = " -I";
if ($Config{'osname'} eq 'MSWin32')
{
# _addstuff;
}
else
{
my ($tmpprog);
($tmpprog = $sourceprog) =~ s"(.*)[\/\\](.*)"$2";
$tmpfile = "/tmp/$tmpprog.tst";
$incfile = "/tmp/$tmpprog.val";
}
my $fd = new FileHandle("> $tmpfile") || die "Couldn't open $tmpfile!\n";
my $fd2 =
new FileHandle("$sourceprog") || die "Couldn't open $sourceprog!\n";
my $perl = <$fd2>; # strip off header;
print $fd
<<"EOF";
use FileHandle;
my \$fh3 = new FileHandle("> $incfile")
|| die "Couldn't open $incfile\\n";
my \$key;
foreach \$key (keys(\%INC)) { print \$fh3 "\$key:\$INC{\$key}\\n"; }
close(\$fh3);
exit();
EOF
print $fd ( <$fd2> );
close($fd);
_print("$ -I@INC $tmpfile\n", 36);
_run("$ -I@INC $tmpfile", 9 );
$fd = new FileHandle ("$incfile");
my @lines = <$fd>;
unlink($tmpfile);
unlink($incfile);
my $line;
my $autolib;
foreach $line (@lines)
{
chomp($line);
my ($modname, $modpath) = split(':', $line);
my ($dir, $file) = ($modpath=~ m"(.*)[\\/]($modname)");
if ($autolib = _lookforAuto($dir, $file))
{
push(@return, $autolib);
}
}
return(@return);
}
sub _maketempfile
{
my $return;
# if ($Config{'osname'} eq 'MSWin32')
# { $return = "C:\\TEMP\\comp$$.p"; }
# else
# { $return = "/tmp/comp$$.p"; }
$return = "comp$$.p";
my $fd = new FileHandle( "> $return") || die "Couldn't open $return!\n";
print $fd $options->{'e'};
close($fd);
return($return);
}
sub _lookforAuto
{
my ($dir, $file) = @_;
my $relshared;
my $return;
($relshared = $file) =~ s"(.*)\.pm"$1";
my ($tmp, $modname) = ($relshared =~ m"(?:(.*)[\\/]){0,1}(.*)"s);
$relshared .=
($Config{'osname'} eq 'MSWin32')? "\\$modname.dll" : "/$modname.so";
if (-e ($return = "$Config{'installarchlib'}/auto/$relshared") )
{
return($return);
}
elsif (-e ($return = "$Config{'installsitearch'}/auto/$relshared"))
{
return($return);
}
elsif (-e ($return = "$dir/arch/auto/$relshared"))
{
return($return);
}
else
{
return(undef);
}
}
sub _getRegexps # make the appropriate regexps for making executables,
{ # shared libs
my ($program_ext, $module_ext) = ([],[]);
@$program_ext = ($ENV{PERL_SCRIPT_EXT})? split(':', $ENV{PERL_SCRIPT_EXT}) :
('.p$', '.pl$', '.bat$');
@$module_ext = ($ENV{PERL_MODULE_EXT})? split(':', $ENV{PERL_MODULE_EXT}) :
('.pm$');
_mungeRegexp( $program_ext );
_mungeRegexp( $module_ext );
return($program_ext, $module_ext);
}
sub _mungeRegexp
{
my ($regexp) = @_;
grep(s:(^|[^\\])\.:$1\x00\\.:g, @$regexp);
grep(s:(^|[^\x00])\\\.:$1\.:g, @$regexp);
grep(s:\x00::g, @$regexp);
}
sub _error
{
my ($type, @args) = @_;
if ($type eq 'equal')
{
if ($args[0] eq $args[1])
{
_print ("ERROR: The object file '$args[0]' does not generate a legitimate executable file! Skipping!\n", -1);
return(1);
}
}
elsif ($type eq 'badeval')
{
if ($args[0])
{
_print ("ERROR: $args[0]\n", -1);
return(1);
}
}
elsif ($type eq 'noextension')
{
my $progext = join(',', @{$args[1]});
my $modext = join(',', @{$args[2]});
$progext =~ s"\\""g;
$modext =~ s"\\""g;
$progext =~ s"\$""g;
$modext =~ s"\$""g;
_print
(
"
ERROR: '$args[0]' does not have a proper extension! Proper extensions are:
PROGRAM: $progext
SHARED OBJECT: $modext
Use the '-prog' flag to force your files to be interpreted as programs.
Use the '-mod' flag to force your files to be interpreted as modules.
", -1
);
return(1);
}
return(0);
}
sub _checkopts
{
my @errors;
local($") = "\n";
if ($options->{'log'})
{
$_fh = new FileHandle(">> $options->{'log'}") || push(@errors, "ERROR: Couldn't open $options->{'log'}\n");
}
if (($options->{'c'}) && (@ARGV > 1) && ($options->{'sav'} ))
{
push(@errors,
"ERROR: The '-sav' and '-C' options are incompatible when you have more than
one input file! ('-C' explicitly names resulting C code, '-sav' saves it,
and hence, with more than one file, the c code will be overwritten for
each file that you compile)\n");
}
if (($options->{'o'}) && (@ARGV > 1))
{
push(@errors,
"ERROR: The '-o' option is incompatible when you have more than one input file!
(-o explicitly names the resulting executable, hence, with more than
one file the names clash)\n");
}
if ($options->{'e'} && $options->{'sav'} && !$options->{'o'} &&
!$options->{'C'})
{
push(@errors,
"ERROR: You need to specify where you are going to save the resulting
executable or C code, when using '-sav' and '-e'. Use '-o' or '-C'.\n");
}
if (($options->{'regex'} || $options->{'run'} || $options->{'o'})
&& $options->{'gen'})
{
push(@errors,
"ERROR: The options '-regex', '-run', and '-o' are incompatible with '-gen'.
'-gen' says to stop at C generation, and the other three modify the
compilation and/or running process!\n");
}
if ($options->{'run'} && $options->{'mod'})
{
push(@errors,
"ERROR: Can't run modules that you are compiling! '-run' and '-mod' are
incompatible!\n");
}
if ($options->{'e'} && @ARGV)
{
push (@errors,
"ERROR: The option '-e' needs to be all by itself without any other
file arguments!\n");
}
if ($options->{'e'} && !($options->{'o'} || $options->{'run'}))
{
$options->{'run'} = 1;
}
if (!defined($options->{'verbose'}))
{
$options->{'verbose'} = ($options->{'log'})? 64 : 7;
}
my $verbose_error;
if ($options->{'verbose'} =~ m"[^tagfcd]" &&
!( $options->{'verbose'} eq '0' ||
($options->{'verbose'} < 64 && $options->{'verbose'} > 0)))
{
$verbose_error = 1;
push(@errors,
"ERROR: Illegal verbosity level. Needs to have either the letters
't','a','g','f','c', or 'd' in it or be between 0 and 63, inclusive.\n");
}
$options->{'verbose'} = ($options->{'verbose'} =~ m"[tagfcd]")?
($options->{'verbose'} =~ m"d") * 32 +
($options->{'verbose'} =~ m"c") * 16 +
($options->{'verbose'} =~ m"f") * 8 +
($options->{'verbose'} =~ m"t") * 4 +
($options->{'verbose'} =~ m"a") * 2 +
($options->{'verbose'} =~ m"g") * 1
: $options->{'verbose'};
if (!$verbose_error && ( $options->{'log'} &&
!(
($options->{'verbose'} & 8) ||
($options->{'verbose'} & 16) ||
($options->{'verbose'} & 32 )
)
)
)
{
push(@errors,
"ERROR: The verbosity level '$options->{'verbose'}' does not output anything
to a logfile, and you specified '-log'!\n");
} # }
if (!$verbose_error && ( !$options->{'log'} &&
(
($options->{'verbose'} & 8) ||
($options->{'verbose'} & 16) ||
($options->{'verbose'} & 32) ||
($options->{'verbose'} & 64)
)
)
)
{
push(@errors,
"ERROR: The verbosity level '$options->{'verbose'}' requires that you also
specify a logfile via '-log'\n");
} # }
(_print( "\n". join("\n", @errors), -1), return(0)) if (@errors);
return(1);
}
sub _print
{
my ($text, $flag ) = @_;
my $logflag = int($flag/8) * 8;
my $regflag = $flag % 8;
if ($flag == -1 || ($flag & $options->{'verbose'}))
{
my $dolog = ((($logflag & $options->{'verbose'}) || $flag == -1)
&& $options->{'log'});
my $doreg = (($regflag & $options->{'verbose'}) || $flag == -1);
if ($doreg) { print( STDERR $text ); }
if ($dolog) { print $_fh $text; }
}
}
sub _run
{
my ($command, $flag) = @_;
my $logflag = ($flag != -1)? int($flag/8) * 8 : 0;
my $regflag = $flag % 8;
if ($flag == -1 || ($flag & $options->{'verbose'}))
{
my $dolog = ($logflag & $options->{'verbose'} && $options->{'log'});
my $doreg = (($regflag & $options->{'verbose'}) || $flag == -1);
if ($doreg && !$dolog)
{ system("$command"); }
elsif ($doreg && $dolog)
{ my $text = `$command 2>&1`; print $_fh $text; print STDERR $text;}
else
{ my $text = `$command 2>&1`; print $_fh $text; }
}
else
{
`$command 2>&1`;
}
return($?);
}
sub _usage
{
_print
(
<<"EOF"
Usage: $0 <file_list>
Flags with arguments
-L < extra library dirs for installation (form of 'dir1:dir2') >
-I < extra include dirs for installation (form of 'dir1:dir2') >
-C < explicit name of resulting C code >
-o < explicit name of resulting executable >
-e < to compile 'one liners'. Need executable name (-o) or '-run'>
-regex < rename regex, -regex 's/\.p/\.exe/' compiles a.p to a.exe >
-verbose < verbose level (1-63, or following letters 'gatfcd' >
-argv < arguments for the executables to be run via '-run' or '-e' >
Boolean flags
-gen ( to just generate the c code. Implies '-sav' )
-sav ( to save intermediate c code, (and executables with '-run'))
-run ( to run the compiled program on the fly, as were interpreted.)
-prog ( to indicate that the files on command line are programs )
-mod ( to indicate that the files on command line are modules )
EOF
, -1
);
exit(255);
}
__END__
=head1 NAME
perlcc - frontend for perl compiler
=head1 SYNOPSIS
%prompt perlcc a.p # compiles into executable 'a'
%prompt perlcc A.pm # compile into 'A.so'
%prompt perlcc a.p -o execute # compiles 'a.p' into 'execute'.
%prompt perlcc a.p -o execute -run # compiles 'a.p' into execute, runs on
# the fly
%prompt perlcc a.p -o execute -run -argv 'arg1 arg2 arg3'
# compiles into execute, runs with
# arg1 arg2 arg3 as @ARGV
%prompt perlcc a.p b.p c.p -regex 's/\.p/\.exe'
# compiles into 'a.exe','b.exe','c.exe'.
%prompt perlcc a.p -log compilelog # compiles into 'a', saves compilation
# info into compilelog, as well
# as mirroring to screen
%prompt perlcc a.p -log compilelog -verbose cdf
# compiles into 'a', saves compilation
# info into compilelog, being silent
# on screen.
%prompt perlcc a.p -C a.c -gen # generates C code (into a.c) and
# stops without compile.
%prompt perlcc a.p -L ../lib a.c
# Compiles with the perl libraries
# inside ../lib included.
=head1 DESCRIPTION
'perlcc' is the frontend into the perl compiler. Typing 'perlcc a.p'
compiles the code inside a.p into a standalone executable, and
perlcc A.pm will compile into a shared object, A.so, suitable for inclusion
into a perl program via "use A".
There are quite a few flags to perlcc which help with such issues as compiling
programs in bulk, testing compiled programs for compatibility with the
interpreter, and controlling.
=head1 OPTIONS
=over 4
=item -L < library_directories >
Adds directories in B<library_directories> to the compilation command.
=item -I < include_directories >
Adds directories inside B<include_directories> to the compilation command.
=item -C < c_code_name >
Explicitly gives the name B<c_code_name> to the generated c code which is to
be compiled. Can only be used if compiling one file on the command line.
=item -o < executable_name >
Explicitly gives the name B<executable_name> to the executable which is to be
compiled. Can only be used if compiling one file on the command line.
=item -e < perl_line_to_execute>
Compiles 'one liners', in the same way that B<perl -e> runs text strings at
the command line. Default is to have the 'one liner' be compiled, and run all
in one go (see B<-run>); giving the B<-o> flag saves the resultant executable,
rather than throwing it away. Use '-argv' to pass arguments to the executable
created.
=item -regex <rename_regex>
Gives a rule B<rename_regex> - which is a legal perl regular expression - to
create executable file names.
=item -verbose <verbose_level>
Show exactly what steps perlcc is taking to compile your code. You can change
the verbosity level B<verbose_level> much in the same way that the '-D' switch
changes perl's debugging level, by giving either a number which is the sum of
bits you want or a list of letters representing what you wish to see. Here are
the verbosity levels so far :
Bit 1(g): Code Generation Errors to STDERR
Bit 2(a): Compilation Errors to STDERR
Bit 4(t): Descriptive text to STDERR
Bit 8(f): Code Generation Errors to file (B<-log> flag needed)
Bit 16(c): Compilation Errors to file (B<-log> flag needed)
Bit 32(d): Descriptive text to file (B<-log> flag needed)
If the B<-log> tag is given, the default verbose level is 63 (ie: mirroring
all of perlcc's output to both the screen and to a log file). If no B<-log>
tag is given, then the default verbose level is 7 (ie: outputting all of
perlcc's output to STDERR).
NOTE: Because of buffering concerns, you CANNOT shadow the output of '-run' to
both a file, and to the screen! Suggestions are welcome on how to overcome this
difficulty, but for now it simply does not work properly, and hence will only go
to the screen.
=item -log <logname>
Opens, for append, a logfile to save some or all of the text for a given
compile command. No rewrite version is available, so this needs to be done
manually.
=item -argv <arguments>
In combination with '-run' or '-e', tells perlcc to run the resulting
executable with the string B<arguments> as @ARGV.
=item -sav
Tells perl to save the intermediate C code. Usually, this C code is the name
of the perl code, plus '.c'; 'perlcode.p' gets generated in 'perlcode.p.c',
for example. If used with the '-e' operator, you need to tell perlcc where to
save resulting executables.
=item -gen
Tells perlcc to only create the intermediate C code, and not compile the
results. Does an implicit B<-sav>, saving the C code rather than deleting it.
=item -run
Immediately run the perl code that has been generated. NOTE: IF YOU GIVE THE
B<-run> FLAG TO B<perlcc>, THEN THE REST OF @ARGV WILL BE INTERPRETED AS
ARGUMENTS TO THE PROGRAM THAT YOU ARE COMPILING.
=item -prog
Indicate that the programs at the command line are programs, and should be
compiled as such. B<perlcc> will automatically determine files to be
programs if they have B<.p>, B<.pl>, B<.bat> extensions.
=item -mod
Indicate that the programs at the command line are modules, and should be
compiled as such. B<perlcc> will automatically determine files to be
modules if they have the extension B<.pm>.
=back
=head1 ENVIRONMENT
Most of the work of B<perlcc> is done at the command line. However, you can
change the heuristic which determines what is a module and what is a program.
As indicated above, B<perlcc> assumes that the extensions:
.p$, .pl$, and .bat$
indicate a perl program, and:
.pm$
indicate a library, for the purposes of creating executables. And furthermore,
by default, these extensions will be replaced (and dropped ) in the process of
creating an executable.
To change the extensions which are programs, and which are modules, set the
environmental variables:
PERL_SCRIPT_EXT
PERL_MODULE_EXT
These two environmental variables take colon-separated, legal perl regular
expressions, and are used by perlcc to decide which objects are which.
For example:
setenv PERL_SCRIPT_EXT '.prl$:.perl$'
prompt% perlcc sample.perl
will compile the script 'sample.perl' into the executable 'sample', and
setenv PERL_MODULE_EXT '.perlmod$:.perlmodule$'
prompt% perlcc sample.perlmod
will compile the module 'sample.perlmod' into the shared object
'sample.so'
NOTE: the '.' in the regular expressions for PERL_SCRIPT_EXT and PERL_MODULE_EXT
is a literal '.', and not a wild-card. To get a true wild-card, you need to
backslash the '.'; as in:
setenv PERL_SCRIPT_EXT '\.\.\.\.\.'
which would have the effect of compiling ANYTHING (except what is in
PERL_MODULE_EXT) into an executable with 5 less characters in its name.
=head1 FILES
'perlcc' uses a temporary file when you use the B<-e> option to evaluate
text and compile it. This temporary file is 'perlc$$.p'. The temporary C code is
perlc$$.p.c, and the temporary executable is perlc$$.
When you use '-run' and don't save your executable, the temporary executable is
perlc$$
=head1 BUGS
perlcc currently cannot compile shared objects on Win32. This should be fixed
by perl5.005.
=cut
!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;