4 use File::Basename qw(&basename &dirname);
8 # List explicitly here the variables you want Configure to
9 # generate. Metaconfig only looks for shell variables, so you
10 # have to mention them as if they were shell variables, not
11 # %Config entries. Thus you write
13 # to ensure Configure will look for $Config{startperl}.
16 # This forces PL files to create target in same directory as PL file.
17 # This is so that make depend always knows where to find PL derivatives.
20 $file = basename($0, '.PL');
21 $file .= '.com' if $^O eq 'VMS';
23 open OUT,">$file" or die "Can't create $file: $!";
25 print "Extracting $file (with variable substitutions)\n";
27 # In this section, perl variables will be expanded during extraction.
28 # You can use $Config{...} to use Configure variables.
30 print OUT <<"!GROK!THIS!";
32 eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
33 if \$running_under_some_shell;
36 # In the following, perl variables are not expanded during extraction.
38 print OUT <<'!NO!SUBS!';
43 use File::Basename qw(&basename &dirname);
48 $Getopt::Long::bundling_override = 1;
49 $Getopt::Long::passthrough = 0;
50 $Getopt::Long::ignore_case = 0;
52 my $pathsep = ($Config{'osname'} eq 'MSWin32')? "\\" : "/"; # MAJOR HACK. SHOULD
57 unshift @ARGV, split ' ', $ENV{PERLCC_OPTS} if $ENV{PERLCC_OPTS};
89 _usage() if (!_checkopts());
90 push(@ARGV, _maketempfile()) if ($options->{'e'});
98 --------------------------------------------------------------------------------
100 --------------------------------------------------------------------------------
110 my ($program_ext, $module_ext) = _getRegexps();
111 my ($obj, $objfile, $so, $type, $backend, $gentype);
113 $backend = $options->{'b'} ? 'Bytecode' : $options->{'opt'} ? 'CC' : 'C';
115 $gentype = $options->{'b'} ? 'Bytecode' : 'C';
118 (($file =~ m"@$program_ext") && ($file !~ m"@$module_ext"))
119 || (defined($options->{'prog'}) || defined($options->{'run'}))
126 $obj = $objfile = $options->{'o'} ? $options->{'o'} : "${file}c";
130 $objfile = $options->{'C'} ? $options->{'C'} : "$file.c";
131 $obj = $options->{'o'} ? $options->{'o'}
132 : _getExecutable( $file,$program_ext);
138 elsif (($file =~ m"@$module_ext") || ($options->{'mod'}))
144 $obj = $objfile = $options->{'o'} ? $options->{'o'} : "${file}c";
148 die "Shared objects are not supported on Win32 yet!!!!\n"
149 if ($Config{'osname'} eq 'MSWin32');
151 $objfile = $options->{'C'} ? $options->{'C'} : "$file.c";
152 $obj = $options->{'o'} ? $options->{'o'}
153 : _getExecutable($file, $module_ext);
154 $so = "$obj.$Config{so}";
161 _error("noextension", $file, $program_ext, $module_ext);
165 if ($type eq 'program')
167 _print("Making $gentype($objfile) for $file!\n", 36 );
169 my $errcode = _createCode($backend, $objfile, $file);
170 (_print( "ERROR: In generating code for $file!\n", -1), return())
173 _print("Compiling C($obj) for $file!\n", 36 ) if (!$options->{'gen'} &&
175 $errcode = _compileCode($file, $objfile, $obj)
176 if (!$options->{'gen'} &&
181 _print( "ERROR: In compiling code for $objfile !\n", -1);
182 my $ofile = File::Basename::basename($objfile);
183 $ofile =~ s"\.c$"\.o"s;
185 _removeCode("$ofile");
189 _runCode($objfile) if ($options->{'run'} && $options->{'b'});
190 _runCode($obj) if ($options->{'run'} && !$options->{'b'});
192 _removeCode($objfile) if (($options->{'b'} &&
193 ($options->{'e'} && !$options->{'o'})) ||
195 (!$options->{'sav'} ||
196 ($options->{'e'} && !$options->{'C'}))));
198 _removeCode($file) if ($options->{'e'});
200 _removeCode($obj) if (!$options->{'b'} &&
202 !$options->{'sav'} && !$options->{'o'}) ||
203 ($options->{'run'} && !$options->{'sav'})));
207 _print( "Making $gentype($objfile) for $file!\n", 36 );
208 my $errcode = _createCode($backend, $objfile, $file, $obj);
209 (_print( "ERROR: In generating code for $file!\n", -1), return())
212 _print( "Compiling C($so) for $file!\n", 36 ) if (!$options->{'gen'} &&
216 _compileCode($file, $objfile, $obj, $so ) if (!$options->{'gen'} &&
219 (_print( "ERROR: In compiling code for $objfile!\n", -1), return())
226 my ($sourceprog, $ext) = @_;
229 if (defined($options->{'regex'}))
231 eval("(\$obj = \$sourceprog) =~ $options->{'regex'}");
232 return(0) if (_error('badeval', $@));
233 return(0) if (_error('equal', $obj, $sourceprog));
235 elsif (defined ($options->{'ext'}))
237 ($obj = $sourceprog) =~ s"@$ext"$options->{ext}"g;
238 return(0) if (_error('equal', $obj, $sourceprog));
240 elsif (defined ($options->{'run'}))
246 ($obj = $sourceprog) =~ s"@$ext""g;
247 return(0) if (_error('equal', $obj, $sourceprog));
254 my ( $backend, $generated_file, $file, $final_output ) = @_;
256 my $output_switch = "o";
257 my $max_line_len = '';
261 if ($^O eq 'MSWin32' && $backend =~ /^CC?$/ && $Config{cc} =~ /^cl/i) {
262 $max_line_len = '-l2000,';
265 if ($backend eq "Bytecode")
269 open(GENFILE, "> $generated_file") || die "Can't open $generated_file: $!";
271 print GENFILE "#!$^X\n" if @_ == 3;
272 print GENFILE "use ByteLoader $ByteLoader::VERSION;\n";
278 if (@_ == 3) # compiling a program
280 chmod $generated_file, 0777 & ~umask if $backend eq "Bytecode";
281 my $null=File::Spec->devnull;
282 _print( "$^X -I@INC -MB::Stash -c $file\n", 36);
283 my @stash=`$^X -I@INC -MB::Stash -c $file 2>$null`;
284 my $stash=$stash[-1];
287 _print( "$^X -I@INC -MO=$backend,$max_line_len$stash $file\n", 36);
288 $return = _run("$^X -I@INC -MO=$backend,$max_line_len$stash,-$output_switch$generated_file $file", 9);
291 else # compiling a shared object
294 "$^X -I@INC -MO=$backend,$max_line_len-m$final_output $file\n", 36);
296 _run("$^X -I@INC -MO=$backend,$max_line_len-m$final_output,-$output_switch$generated_file $file ", 9);
303 my ($sourceprog, $generated_cfile, $output_executable, $shared_object) = @_;
306 if (@_ == 3) # just compiling a program
309 _ccharness('static', $sourceprog, "-o", $output_executable,
315 my $object_file = $generated_cfile;
316 $object_file =~ s"\.c$"$Config{_o}";
318 $return[0] = _ccharness('compile', $sourceprog, "-c", $generated_cfile);
319 $return[1] = _ccharness
323 $shared_object, $object_file
325 return(1) if (grep ($_, @return));
332 my ($executable) = @_;
333 _print("$executable $options->{'argv'}\n", 36);
334 _run("$executable $options->{'argv'}", -1 );
340 unlink($file) if (-e $file);
349 my $sourceprog = shift(@args);
350 my ($libdir, $incdir);
353 $L = '-libpath:' if $^O eq 'MSWin32' && $Config{cc} =~ /^cl/i;
355 if (-d "$Config{installarchlib}/CORE")
357 $libdir = "$L$Config{installarchlib}/CORE";
358 $incdir = "-I$Config{installarchlib}/CORE";
362 $libdir = "$L.. $L.";
363 $incdir = "-I.. -I.";
366 $libdir .= " $L$options->{L}" if (defined($options->{L}));
367 $incdir .= " -I$options->{L}" if (defined($options->{L}));
374 if (!grep(/^-[cS]$/, @args))
376 my $lperl = $^O eq 'os2' ? '-llibperl'
377 : $^O eq 'MSWin32' ? "$Config{archlibexp}\\CORE\\$Config{libperl}"
379 ($lperl = $Config{libperl}) =~ s/lib(.*)\Q$Config{_a}\E/-l$1/
382 $optimize = $Config{'optimize'} =~ /-O\d/ ? '' : $Config{'optimize'};
384 $flags = $type eq 'dynamic' ? $Config{lddlflags} : $Config{ldflags};
385 $linkargs = "$flags $libdir $lperl @Config{libs}";
386 $linkargs = "/link $linkargs" if $^O eq 'MSWin32' && $Config{cc} =~ /^cl/i;
389 my $libs = _getSharedObjects($sourceprog);
390 @$libs = grep { !(/DynaLoader\.a$/ && ($dynaloader = $_)) } @$libs
393 my $ccflags = $Config{ccflags};
394 $ccflags .= ' -DUSEIMPORTLIB' if $^O eq 'cygwin';
395 my $cccmd = "$Config{cc} $ccflags $optimize $incdir "
396 ."@args $dynaloader $linkargs @$libs";
398 _print ("$cccmd\n", 36);
402 sub _getSharedObjects
404 my ($sourceprog) = @_;
405 my ($tmpfile, $incfile);
406 my (@sharedobjects, @libraries);
410 ($tmpprog = $sourceprog) =~ s"(.*)[\\/](.*)"$2";
412 my $tempdir= File::Spec->tmpdir;
414 $tmpfile = "$tempdir/$tmpprog.tst";
415 $incfile = "$tempdir/$tmpprog.val";
417 my $fd = new FileHandle("> $tmpfile") || die "Couldn't open $tmpfile!\n";
419 new FileHandle("$sourceprog") || die "Couldn't open $sourceprog!\n";
423 my \$fh3 = new FileHandle("> $incfile")
424 || die "Couldn't open $incfile\\n";
427 foreach \$key (keys(\%INC)) { print \$fh3 "\$key:\$INC{\$key}\\n"; }
432 print $fd ( <$fd2> );
435 _print("$^X -I@INC $tmpfile\n", 36);
436 _run("$^X -I@INC $tmpfile", 9 );
438 $fd = new FileHandle ("$incfile");
449 foreach $line (@lines)
453 my ($modname, $modpath) = split(':', $line);
454 my ($dir, $file) = ($modpath=~ m"(.*)[\\/]($modname)");
456 if ($autolib = _lookforAuto($dir, $file)) { push(@return, $autolib); }
465 # if ($Config{'osname'} eq 'MSWin32')
466 # { $return = "C:\\TEMP\\comp$$.p"; }
468 # { $return = "/tmp/comp$$.p"; }
470 $return = "comp$$.p";
472 my $fd = new FileHandle( "> $return") || die "Couldn't open $return!\n";
473 print $fd $options->{'e'};
482 my ($dir, $file) = @_;
484 my ($relabs, $relshared);
487 my $sharedextension = $^O =~ /MSWin32|cygwin|os2/i
488 ? $Config{_a} : ".$Config{so}";
489 ($prefix = $file) =~ s"(.*)\.pm"$1";
491 my ($tmp, $modname) = ($prefix =~ m"(?:(.*)[\\/]){0,1}(.*)"s);
493 $relshared = "$pathsep$prefix$pathsep$modname$sharedextension";
494 $relabs = "$pathsep$prefix$pathsep$modname$Config{_a}";
495 # HACK . WHY DOES _a HAVE A '.'
498 my @searchpaths = map("$_${pathsep}auto", @INC);
501 foreach $path (@searchpaths)
503 if (-e ($return = "$path$relshared")) { return($return); }
504 if (-e ($return = "$path$relabs")) { return($return); }
509 sub _getRegexps # make the appropriate regexps for making executables,
512 my ($program_ext, $module_ext) = ([],[]);
515 @$program_ext = ($ENV{PERL_SCRIPT_EXT})? split(':', $ENV{PERL_SCRIPT_EXT}) :
516 ('.p$', '.pl$', '.bat$');
519 @$module_ext = ($ENV{PERL_MODULE_EXT})? split(':', $ENV{PERL_MODULE_EXT}) :
522 _mungeRegexp( $program_ext );
523 _mungeRegexp( $module_ext );
525 return($program_ext, $module_ext);
532 grep(s:(^|[^\\])\.:$1\x00\\.:g, @$regexp);
533 grep(s:(^|[^\x00])\\\.:$1\.:g, @$regexp);
534 grep(s:\x00::g, @$regexp);
539 my ($type, @args) = @_;
541 if ($type eq 'equal')
544 if ($args[0] eq $args[1])
546 _print ("ERROR: The object file '$args[0]' does not generate a legitimate executable file! Skipping!\n", -1);
550 elsif ($type eq 'badeval')
554 _print ("ERROR: $args[0]\n", -1);
558 elsif ($type eq 'noextension')
560 my $progext = join(',', @{$args[1]});
561 my $modext = join(',', @{$args[2]});
572 ERROR: '$args[0]' does not have a proper extension! Proper extensions are:
575 SHARED OBJECT: $modext
577 Use the '-prog' flag to force your files to be interpreted as programs.
578 Use the '-mod' flag to force your files to be interpreted as modules.
592 if ($options->{'log'})
594 $_fh = new FileHandle(">> $options->{'log'}") || push(@errors, "ERROR: Couldn't open $options->{'log'}\n");
597 if ($options->{'b'} && $options->{'c'})
600 "ERROR: The '-b' and '-c' options are incompatible. The '-c' option specifies
601 a name for the intermediate C code but '-b' generates byte code
604 if ($options->{'b'} && ($options->{'sav'} || $options->{'gen'}))
607 "ERROR: The '-sav' and '-gen' options are incompatible with the '-b' option.
608 They ask for intermediate C code to be saved by '-b' generates byte
612 if (($options->{'c'}) && (@ARGV > 1) && ($options->{'sav'} ))
615 "ERROR: The '-sav' and '-C' options are incompatible when you have more than
616 one input file! ('-C' explicitly names resulting C code, '-sav' saves it,
617 and hence, with more than one file, the c code will be overwritten for
618 each file that you compile)\n");
620 if (($options->{'o'}) && (@ARGV > 1))
623 "ERROR: The '-o' option is incompatible when you have more than one input
624 file! (-o explicitly names the resulting file, hence, with more than
625 one file the names clash)\n");
628 if ($options->{'e'} && ($options->{'sav'} || $options->{'gen'}) &&
632 "ERROR: You need to specify where you are going to save the resulting
633 C code when using '-sav' and '-e'. Use '-C'.\n");
636 if (($options->{'regex'} || $options->{'run'} || $options->{'o'})
637 && $options->{'gen'})
640 "ERROR: The options '-regex', '-run', and '-o' are incompatible with '-gen'.
641 '-gen' says to stop at C generation, and the other three modify the
642 compilation and/or running process!\n");
645 if ($options->{'run'} && $options->{'mod'})
648 "ERROR: Can't run modules that you are compiling! '-run' and '-mod' are
652 if ($options->{'e'} && @ARGV)
655 "ERROR: The option '-e' needs to be all by itself without any other
658 if ($options->{'e'} && !($options->{'o'} || $options->{'run'}))
660 $options->{'run'} = 1;
663 if (!defined($options->{'verbose'}))
665 $options->{'verbose'} = ($options->{'log'})? 64 : 7;
670 if ($options->{'verbose'} =~ m"[^tagfcd]" &&
671 !( $options->{'verbose'} eq '0' ||
672 ($options->{'verbose'} < 64 && $options->{'verbose'} > 0)))
676 "ERROR: Illegal verbosity level. Needs to have either the letters
677 't','a','g','f','c', or 'd' in it or be between 0 and 63, inclusive.\n");
680 $options->{'verbose'} = ($options->{'verbose'} =~ m"[tagfcd]")?
681 ($options->{'verbose'} =~ m"d") * 32 +
682 ($options->{'verbose'} =~ m"c") * 16 +
683 ($options->{'verbose'} =~ m"f") * 8 +
684 ($options->{'verbose'} =~ m"t") * 4 +
685 ($options->{'verbose'} =~ m"a") * 2 +
686 ($options->{'verbose'} =~ m"g") * 1
687 : $options->{'verbose'};
689 if (!$verbose_error && ( $options->{'log'} &&
691 ($options->{'verbose'} & 8) ||
692 ($options->{'verbose'} & 16) ||
693 ($options->{'verbose'} & 32 )
699 "ERROR: The verbosity level '$options->{'verbose'}' does not output anything
700 to a logfile, and you specified '-log'!\n");
703 if (!$verbose_error && ( !$options->{'log'} &&
705 ($options->{'verbose'} & 8) ||
706 ($options->{'verbose'} & 16) ||
707 ($options->{'verbose'} & 32) ||
708 ($options->{'verbose'} & 64)
714 "ERROR: The verbosity level '$options->{'verbose'}' requires that you also
715 specify a logfile via '-log'\n");
719 (_print( "\n". join("\n", @errors), -1), return(0)) if (@errors);
725 my ($text, $flag ) = @_;
727 my $logflag = int($flag/8) * 8;
728 my $regflag = $flag % 8;
730 if ($flag == -1 || ($flag & $options->{'verbose'}))
732 my $dolog = ((($logflag & $options->{'verbose'}) || $flag == -1)
733 && $options->{'log'});
735 my $doreg = (($regflag & $options->{'verbose'}) || $flag == -1);
737 if ($doreg) { print( STDERR $text ); }
738 if ($dolog) { print $_fh $text; }
744 my ($command, $flag) = @_;
746 my $logflag = ($flag != -1)? int($flag/8) * 8 : 0;
747 my $regflag = $flag % 8;
749 if ($flag == -1 || ($flag & $options->{'verbose'}))
751 my $dolog = ($logflag & $options->{'verbose'} && $options->{'log'});
752 my $doreg = (($regflag & $options->{'verbose'}) || $flag == -1);
754 if ($doreg && !$dolog)
756 print _interruptrun("$command");
758 elsif ($doreg && $dolog)
760 my $text = _interruptrun($command);
766 my $text = _interruptrun($command);
772 _interruptrun($command);
780 my $pid = open (FD, "$command |");
782 local($SIG{HUP}) = sub {
784 # HACK... 2>&1 doesn't propogate
785 # kill, comment out for quick and dirty
786 # process killing of child.
791 local($SIG{INT}) = sub {
793 # HACK... 2>&1 doesn't propogate
794 # kill, comment out for quick and dirty
795 # process killing of child.
801 ($ENV{'PERLCC_TIMEOUT'} &&
802 $Config{'osname'} ne 'MSWin32' && $command =~ m"^perlc");
807 local($SIG{ALRM}) = sub { die "INFINITE LOOP"; };
808 alarm($ENV{'PERLCC_TIMEOUT'}) if ($needalarm);
809 $text = join('', <FD>);
810 alarm(0) if ($needalarm);
815 eval { kill 'HUP', $pid; };
816 _print("SYSTEM TIMEOUT (infinite loop?)\n", 36);
829 Usage: $0 <file_list>
831 WARNING: The whole compiler suite ('perlcc' included) is considered VERY
832 experimental. Use for production purposes is strongly discouraged.
835 -L < extra library dirs for installation (form of 'dir1:dir2') >
836 -I < extra include dirs for installation (form of 'dir1:dir2') >
837 -C < explicit name of resulting C code >
838 -o < explicit name of resulting executable >
839 -e < to compile 'one liners'. Need executable name (-o) or '-run'>
840 -regex < rename regex, -regex 's/\.p/\.exe/' compiles a.p to a.exe >
841 -verbose < verbose level < 1-63, or following letters 'gatfcd' >
842 -argv < arguments for the executables to be run via '-run' or '-e' >
845 -b ( to generate byte code )
846 -opt ( to generated optimised C code. May not work in some cases. )
847 -gen ( to just generate the C code. Implies '-sav' )
848 -sav ( to save intermediate C code, (and executables with '-run'))
849 -run ( to run the compiled program on the fly, as were interpreted.)
850 -prog ( to indicate that the files on command line are programs )
851 -mod ( to indicate that the files on command line are modules )
865 perlcc - frontend for perl compiler
869 %prompt perlcc a.p # compiles into executable 'a'
871 %prompt perlcc A.pm # compile into 'A.so'
873 %prompt perlcc a.p -o execute # compiles 'a.p' into 'execute'.
875 %prompt perlcc a.p -o execute -run # compiles 'a.p' into execute, runs on
878 %prompt perlcc a.p -o execute -run -argv 'arg1 arg2 arg3'
879 # compiles into execute, runs with
880 # arg1 arg2 arg3 as @ARGV
882 %prompt perlcc a.p b.p c.p -regex 's/\.p/\.exe'
883 # compiles into 'a.exe','b.exe','c.exe'.
885 %prompt perlcc a.p -log compilelog # compiles into 'a', saves compilation
886 # info into compilelog, as well
887 # as mirroring to screen
889 %prompt perlcc a.p -log compilelog -verbose cdf
890 # compiles into 'a', saves compilation
891 # info into compilelog, being silent
894 %prompt perlcc a.p -C a.c -gen # generates C code (into a.c) and
895 # stops without compile.
897 %prompt perlcc a.p -L ../lib a.c
898 # Compiles with the perl libraries
899 # inside ../lib included.
903 'perlcc' is the frontend into the perl compiler. Typing 'perlcc a.p'
904 compiles the code inside a.p into a standalone executable, and
905 perlcc A.pm will compile into a shared object, A.so, suitable for inclusion
906 into a perl program via "use A".
908 There are quite a few flags to perlcc which help with such issues as compiling
909 programs in bulk, testing compiled programs for compatibility with the
910 interpreter, and controlling.
916 =item -L < library_directories >
918 Adds directories in B<library_directories> to the compilation command.
920 =item -I < include_directories >
922 Adds directories inside B<include_directories> to the compilation command.
924 =item -C < c_code_name >
926 Explicitly gives the name B<c_code_name> to the generated file containing
927 the C code which is to be compiled. Can only be used if compiling one file
930 =item -o < executable_name >
932 Explicitly gives the name B<executable_name> to the executable which is to be
933 compiled. Can only be used if compiling one file on the command line.
935 =item -e < perl_line_to_execute>
937 Compiles 'one liners', in the same way that B<perl -e> runs text strings at
938 the command line. Default is to have the 'one liner' be compiled, and run all
939 in one go (see B<-run>); giving the B<-o> flag saves the resultant executable,
940 rather than throwing it away. Use '-argv' to pass arguments to the executable
945 Generates bytecode instead of C code.
949 Uses the optimized C backend (C<B::CC>)rather than the simple C backend
950 (C<B::C>). Beware that the optimized C backend creates very large
951 switch structures and structure initializations. Many C compilers
952 find it a challenge to compile the resulting output in finite amounts
953 of time. Many Perl features such as C<goto LABEL> are also not
954 supported by the optimized C backend. The simple C backend should
955 work in more instances, but can only offer modest speed increases.
957 =item -regex <rename_regex>
959 Gives a rule B<rename_regex> - which is a legal perl regular expression - to
960 create executable file names.
962 =item -verbose <verbose_level>
964 Show exactly what steps perlcc is taking to compile your code. You can
965 change the verbosity level B<verbose_level> much in the same way that
966 the C<-D> switch changes perl's debugging level, by giving either a
967 number which is the sum of bits you want or a list of letters
968 representing what you wish to see. Here are the verbosity levels so
971 Bit 1(g): Code Generation Errors to STDERR
972 Bit 2(a): Compilation Errors to STDERR
973 Bit 4(t): Descriptive text to STDERR
974 Bit 8(f): Code Generation Errors to file (B<-log> flag needed)
975 Bit 16(c): Compilation Errors to file (B<-log> flag needed)
976 Bit 32(d): Descriptive text to file (B<-log> flag needed)
978 If the B<-log> tag is given, the default verbose level is 63 (ie: mirroring
979 all of perlcc's output to both the screen and to a log file). If no B<-log>
980 tag is given, then the default verbose level is 7 (ie: outputting all of
981 perlcc's output to STDERR).
983 NOTE: Because of buffering concerns, you CANNOT shadow the output of '-run' to
984 both a file, and to the screen! Suggestions are welcome on how to overcome this
985 difficulty, but for now it simply does not work properly, and hence will only go
990 Opens, for append, a logfile to save some or all of the text for a given
991 compile command. No rewrite version is available, so this needs to be done
994 =item -argv <arguments>
996 In combination with C<-run> or C<-e>, tells perlcc to run the resulting
997 executable with the string B<arguments> as @ARGV.
1001 Tells perl to save the intermediate C code. Usually, this C code is the name
1002 of the perl code, plus '.c'; 'perlcode.p' gets generated in 'perlcode.p.c',
1003 for example. If used with the C<-e> operator, you need to tell perlcc where to
1004 save resulting executables.
1008 Tells perlcc to only create the intermediate C code, and not compile the
1009 results. Does an implicit B<-sav>, saving the C code rather than deleting it.
1013 Immediately run the perl code that has been generated. NOTE: IF YOU GIVE THE
1014 B<-run> FLAG TO B<perlcc>, THEN THE REST OF @ARGV WILL BE INTERPRETED AS
1015 ARGUMENTS TO THE PROGRAM THAT YOU ARE COMPILING.
1019 Indicate that the programs at the command line are programs, and should be
1020 compiled as such. B<perlcc> will automatically determine files to be
1021 programs if they have B<.p>, B<.pl>, B<.bat> extensions.
1025 Indicate that the programs at the command line are modules, and should be
1026 compiled as such. B<perlcc> will automatically determine files to be
1027 modules if they have the extension B<.pm>.
1033 Most of the work of B<perlcc> is done at the command line. However, you can
1034 change the heuristic which determines what is a module and what is a program.
1035 As indicated above, B<perlcc> assumes that the extensions:
1037 .p$, .pl$, and .bat$
1039 indicate a perl program, and:
1043 indicate a library, for the purposes of creating executables. And furthermore,
1044 by default, these extensions will be replaced (and dropped) in the process of
1045 creating an executable.
1047 To change the extensions which are programs, and which are modules, set the
1048 environmental variables:
1053 These two environmental variables take colon-separated, legal perl regular
1054 expressions, and are used by perlcc to decide which objects are which.
1057 setenv PERL_SCRIPT_EXT '.prl$:.perl$'
1058 prompt% perlcc sample.perl
1060 will compile the script 'sample.perl' into the executable 'sample', and
1062 setenv PERL_MODULE_EXT '.perlmod$:.perlmodule$'
1064 prompt% perlcc sample.perlmod
1066 will compile the module 'sample.perlmod' into the shared object
1069 NOTE: the '.' in the regular expressions for PERL_SCRIPT_EXT and PERL_MODULE_EXT
1070 is a literal '.', and not a wild-card. To get a true wild-card, you need to
1071 backslash the '.'; as in:
1073 setenv PERL_SCRIPT_EXT '\.\.\.\.\.'
1075 which would have the effect of compiling ANYTHING (except what is in
1076 PERL_MODULE_EXT) into an executable with 5 less characters in its name.
1078 The PERLCC_OPTS environment variable can be set to the default flags
1079 that must be used by the compiler.
1081 The PERLCC_TIMEOUT environment variable can be set to the number of
1082 seconds to wait for the backends before giving up. This is sometimes
1083 necessary to avoid some compilers taking forever to compile the
1084 generated output. May not work on Windows and similar platforms.
1088 'perlcc' uses a temporary file when you use the B<-e> option to evaluate
1089 text and compile it. This temporary file is 'perlc$$.p'. The temporary C code is
1090 perlc$$.p.c, and the temporary executable is perlc$$.
1092 When you use '-run' and don't save your executable, the temporary executable is
1097 The whole compiler suite (C<perlcc> included) should be considered very
1098 experimental. Use for production purposes is strongly discouraged.
1100 perlcc currently cannot compile shared objects on Win32. This should be fixed
1103 Bugs in the various compiler backends still exist, and are perhaps too
1104 numerous to list here.
1110 close OUT or die "Can't close $file: $!";
1111 chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
1112 exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';