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 ) = @_;
259 open(GENFILE, "> $generated_file") || die "Can't open $generated_file: $!";
261 if ($backend eq "Bytecode")
265 print GENFILE "#!$^X\n" if @_ == 3;
266 print GENFILE "use ByteLoader $ByteLoader::VERSION;\n";
271 if (@_ == 3) # compiling a program
273 chmod $generated_file, 0777 & ~umask if $backend eq "Bytecode";
274 my $null=File::Spec->devnull;
275 _print( "$^X -I@INC -MB::Stash -c $file\n", 36);
276 my @stash=`$^X -I@INC -MB::Stash -c $file 2>$null`;
277 my $stash=$stash[-1];
280 _print( "$^X -I@INC -MO=$backend,$stash $file\n", 36);
281 $return = _run("$^X -I@INC -MO=$backend,$stash,-o$generated_file $file", 9);
284 else # compiling a shared object
287 "$^X -I@INC -MO=$backend,-m$final_output $file\n", 36);
289 _run("$^X -I@INC -MO=$backend,-m$final_output,-o$generated_file $file ", 9);
296 my ($sourceprog, $generated_cfile, $output_executable, $shared_object) = @_;
299 if (@_ == 3) # just compiling a program
302 _ccharness('static', $sourceprog, "-o", $output_executable,
308 my $object_file = $generated_cfile;
309 $object_file =~ s"\.c$"$Config{_o}";
311 $return[0] = _ccharness('compile', $sourceprog, "-c", $generated_cfile);
312 $return[1] = _ccharness
316 $shared_object, $object_file
318 return(1) if (grep ($_, @return));
325 my ($executable) = @_;
326 _print("$executable $options->{'argv'}\n", 36);
327 _run("$executable $options->{'argv'}", -1 );
333 unlink($file) if (-e $file);
342 my $sourceprog = shift(@args);
343 my ($libdir, $incdir);
345 if (-d "$Config{installarchlib}/CORE")
347 $libdir = "-L$Config{installarchlib}/CORE";
348 $incdir = "-I$Config{installarchlib}/CORE";
352 $libdir = "-L.. -L.";
353 $incdir = "-I.. -I.";
356 $libdir .= " -L$options->{L}" if (defined($options->{L}));
357 $incdir .= " -I$options->{L}" if (defined($options->{L}));
364 if (!grep(/^-[cS]$/, @args))
366 my $lperl = $^O eq 'os2' ? '-llibperl'
367 : $^O eq 'MSWin32' ? "$Config{archlibexp}\\CORE\\perl.lib"
370 $optimize = $Config{'optimize'} =~ /-O\d/ ? '' : $Config{'optimize'};
372 $flags = $type eq 'dynamic' ? $Config{lddlflags} : $Config{ldflags};
373 $linkargs = "$flags $libdir $lperl @Config{libs}";
376 my $libs = _getSharedObjects($sourceprog);
378 my $cccmd = "$Config{cc} $Config{ccflags} $optimize $incdir "
379 ."@args $dynaloader $linkargs @$libs";
381 _print ("$cccmd\n", 36);
385 sub _getSharedObjects
387 my ($sourceprog) = @_;
388 my ($tmpfile, $incfile);
389 my (@sharedobjects, @libraries);
393 ($tmpprog = $sourceprog) =~ s"(.*)[\\/](.*)"$2";
395 my $tempdir= File::Spec->tmpdir;
397 $tmpfile = "$tempdir/$tmpprog.tst";
398 $incfile = "$tempdir/$tmpprog.val";
400 my $fd = new FileHandle("> $tmpfile") || die "Couldn't open $tmpfile!\n";
402 new FileHandle("$sourceprog") || die "Couldn't open $sourceprog!\n";
406 my \$fh3 = new FileHandle("> $incfile")
407 || die "Couldn't open $incfile\\n";
410 foreach \$key (keys(\%INC)) { print \$fh3 "\$key:\$INC{\$key}\\n"; }
415 print $fd ( <$fd2> );
418 _print("$^X -I@INC $tmpfile\n", 36);
419 _run("$^X -I@INC $tmpfile", 9 );
421 $fd = new FileHandle ("$incfile");
432 foreach $line (@lines)
436 my ($modname, $modpath) = split(':', $line);
437 my ($dir, $file) = ($modpath=~ m"(.*)[\\/]($modname)");
439 if ($autolib = _lookforAuto($dir, $file)) { push(@return, $autolib); }
448 # if ($Config{'osname'} eq 'MSWin32')
449 # { $return = "C:\\TEMP\\comp$$.p"; }
451 # { $return = "/tmp/comp$$.p"; }
453 $return = "comp$$.p";
455 my $fd = new FileHandle( "> $return") || die "Couldn't open $return!\n";
456 print $fd $options->{'e'};
465 my ($dir, $file) = @_;
467 my ($relabs, $relshared);
470 my $sharedextension=$^O eq 'MSWin32' ? '.lib':$Config{so};
471 ($prefix = $file) =~ s"(.*)\.pm"$1";
473 my ($tmp, $modname) = ($prefix =~ m"(?:(.*)[\\/]){0,1}(.*)"s);
475 $relshared = "$pathsep$prefix$pathsep$modname$sharedextension";
476 $relabs = "$pathsep$prefix$pathsep$modname$Config{_a}";
477 # HACK . WHY DOES _a HAVE A '.'
480 my @searchpaths = map("$_${pathsep}auto", @INC);
483 foreach $path (@searchpaths)
485 if (-e ($return = "$path$relshared")) { return($return); }
486 if (-e ($return = "$path$relabs")) { return($return); }
491 sub _getRegexps # make the appropriate regexps for making executables,
494 my ($program_ext, $module_ext) = ([],[]);
497 @$program_ext = ($ENV{PERL_SCRIPT_EXT})? split(':', $ENV{PERL_SCRIPT_EXT}) :
498 ('.p$', '.pl$', '.bat$');
501 @$module_ext = ($ENV{PERL_MODULE_EXT})? split(':', $ENV{PERL_MODULE_EXT}) :
504 _mungeRegexp( $program_ext );
505 _mungeRegexp( $module_ext );
507 return($program_ext, $module_ext);
514 grep(s:(^|[^\\])\.:$1\x00\\.:g, @$regexp);
515 grep(s:(^|[^\x00])\\\.:$1\.:g, @$regexp);
516 grep(s:\x00::g, @$regexp);
521 my ($type, @args) = @_;
523 if ($type eq 'equal')
526 if ($args[0] eq $args[1])
528 _print ("ERROR: The object file '$args[0]' does not generate a legitimate executable file! Skipping!\n", -1);
532 elsif ($type eq 'badeval')
536 _print ("ERROR: $args[0]\n", -1);
540 elsif ($type eq 'noextension')
542 my $progext = join(',', @{$args[1]});
543 my $modext = join(',', @{$args[2]});
554 ERROR: '$args[0]' does not have a proper extension! Proper extensions are:
557 SHARED OBJECT: $modext
559 Use the '-prog' flag to force your files to be interpreted as programs.
560 Use the '-mod' flag to force your files to be interpreted as modules.
574 if ($options->{'log'})
576 $_fh = new FileHandle(">> $options->{'log'}") || push(@errors, "ERROR: Couldn't open $options->{'log'}\n");
579 if ($options->{'b'} && $options->{'c'})
582 "ERROR: The '-b' and '-c' options are incompatible. The '-c' option specifies
583 a name for the intermediate C code but '-b' generates byte code
586 if ($options->{'b'} && ($options->{'sav'} || $options->{'gen'}))
589 "ERROR: The '-sav' and '-gen' options are incompatible with the '-b' option.
590 They ask for intermediate C code to be saved by '-b' generates byte
594 if (($options->{'c'}) && (@ARGV > 1) && ($options->{'sav'} ))
597 "ERROR: The '-sav' and '-C' options are incompatible when you have more than
598 one input file! ('-C' explicitly names resulting C code, '-sav' saves it,
599 and hence, with more than one file, the c code will be overwritten for
600 each file that you compile)\n");
602 if (($options->{'o'}) && (@ARGV > 1))
605 "ERROR: The '-o' option is incompatible when you have more than one input
606 file! (-o explicitly names the resulting file, hence, with more than
607 one file the names clash)\n");
610 if ($options->{'e'} && ($options->{'sav'} || $options->{'gen'}) &&
614 "ERROR: You need to specify where you are going to save the resulting
615 C code when using '-sav' and '-e'. Use '-C'.\n");
618 if (($options->{'regex'} || $options->{'run'} || $options->{'o'})
619 && $options->{'gen'})
622 "ERROR: The options '-regex', '-run', and '-o' are incompatible with '-gen'.
623 '-gen' says to stop at C generation, and the other three modify the
624 compilation and/or running process!\n");
627 if ($options->{'run'} && $options->{'mod'})
630 "ERROR: Can't run modules that you are compiling! '-run' and '-mod' are
634 if ($options->{'e'} && @ARGV)
637 "ERROR: The option '-e' needs to be all by itself without any other
640 if ($options->{'e'} && !($options->{'o'} || $options->{'run'}))
642 $options->{'run'} = 1;
645 if (!defined($options->{'verbose'}))
647 $options->{'verbose'} = ($options->{'log'})? 64 : 7;
652 if ($options->{'verbose'} =~ m"[^tagfcd]" &&
653 !( $options->{'verbose'} eq '0' ||
654 ($options->{'verbose'} < 64 && $options->{'verbose'} > 0)))
658 "ERROR: Illegal verbosity level. Needs to have either the letters
659 't','a','g','f','c', or 'd' in it or be between 0 and 63, inclusive.\n");
662 $options->{'verbose'} = ($options->{'verbose'} =~ m"[tagfcd]")?
663 ($options->{'verbose'} =~ m"d") * 32 +
664 ($options->{'verbose'} =~ m"c") * 16 +
665 ($options->{'verbose'} =~ m"f") * 8 +
666 ($options->{'verbose'} =~ m"t") * 4 +
667 ($options->{'verbose'} =~ m"a") * 2 +
668 ($options->{'verbose'} =~ m"g") * 1
669 : $options->{'verbose'};
671 if (!$verbose_error && ( $options->{'log'} &&
673 ($options->{'verbose'} & 8) ||
674 ($options->{'verbose'} & 16) ||
675 ($options->{'verbose'} & 32 )
681 "ERROR: The verbosity level '$options->{'verbose'}' does not output anything
682 to a logfile, and you specified '-log'!\n");
685 if (!$verbose_error && ( !$options->{'log'} &&
687 ($options->{'verbose'} & 8) ||
688 ($options->{'verbose'} & 16) ||
689 ($options->{'verbose'} & 32) ||
690 ($options->{'verbose'} & 64)
696 "ERROR: The verbosity level '$options->{'verbose'}' requires that you also
697 specify a logfile via '-log'\n");
701 (_print( "\n". join("\n", @errors), -1), return(0)) if (@errors);
707 my ($text, $flag ) = @_;
709 my $logflag = int($flag/8) * 8;
710 my $regflag = $flag % 8;
712 if ($flag == -1 || ($flag & $options->{'verbose'}))
714 my $dolog = ((($logflag & $options->{'verbose'}) || $flag == -1)
715 && $options->{'log'});
717 my $doreg = (($regflag & $options->{'verbose'}) || $flag == -1);
719 if ($doreg) { print( STDERR $text ); }
720 if ($dolog) { print $_fh $text; }
726 my ($command, $flag) = @_;
728 my $logflag = ($flag != -1)? int($flag/8) * 8 : 0;
729 my $regflag = $flag % 8;
731 if ($flag == -1 || ($flag & $options->{'verbose'}))
733 my $dolog = ($logflag & $options->{'verbose'} && $options->{'log'});
734 my $doreg = (($regflag & $options->{'verbose'}) || $flag == -1);
736 if ($doreg && !$dolog)
738 print _interruptrun("$command");
740 elsif ($doreg && $dolog)
742 my $text = _interruptrun($command);
748 my $text = _interruptrun($command);
754 _interruptrun($command);
762 my $pid = open (FD, "$command |");
764 local($SIG{HUP}) = sub {
766 # HACK... 2>&1 doesn't propogate
767 # kill, comment out for quick and dirty
768 # process killing of child.
773 local($SIG{INT}) = sub {
775 # HACK... 2>&1 doesn't propogate
776 # kill, comment out for quick and dirty
777 # process killing of child.
783 ($ENV{'PERLCC_TIMEOUT'} &&
784 $Config{'osname'} ne 'MSWin32' && $command =~ m"^perlc");
789 local($SIG{ALRM}) = sub { die "INFINITE LOOP"; };
790 alarm($ENV{'PERLCC_TIMEOUT'}) if ($needalarm);
791 $text = join('', <FD>);
792 alarm(0) if ($needalarm);
797 eval { kill 'HUP', $pid; };
798 _print("SYSTEM TIMEOUT (infinite loop?)\n", 36);
811 Usage: $0 <file_list>
813 WARNING: The whole compiler suite ('perlcc' included) is considered VERY
814 experimental. Use for production purposes is strongly discouraged.
817 -L < extra library dirs for installation (form of 'dir1:dir2') >
818 -I < extra include dirs for installation (form of 'dir1:dir2') >
819 -C < explicit name of resulting C code >
820 -o < explicit name of resulting executable >
821 -e < to compile 'one liners'. Need executable name (-o) or '-run'>
822 -regex < rename regex, -regex 's/\.p/\.exe/' compiles a.p to a.exe >
823 -verbose < verbose level < 1-63, or following letters 'gatfcd' >
824 -argv < arguments for the executables to be run via '-run' or '-e' >
827 -b ( to generate byte code )
828 -opt ( to generated optimised C code. May not work in some cases. )
829 -gen ( to just generate the C code. Implies '-sav' )
830 -sav ( to save intermediate C code, (and executables with '-run'))
831 -run ( to run the compiled program on the fly, as were interpreted.)
832 -prog ( to indicate that the files on command line are programs )
833 -mod ( to indicate that the files on command line are modules )
847 perlcc - frontend for perl compiler
851 %prompt perlcc a.p # compiles into executable 'a'
853 %prompt perlcc A.pm # compile into 'A.so'
855 %prompt perlcc a.p -o execute # compiles 'a.p' into 'execute'.
857 %prompt perlcc a.p -o execute -run # compiles 'a.p' into execute, runs on
860 %prompt perlcc a.p -o execute -run -argv 'arg1 arg2 arg3'
861 # compiles into execute, runs with
862 # arg1 arg2 arg3 as @ARGV
864 %prompt perlcc a.p b.p c.p -regex 's/\.p/\.exe'
865 # compiles into 'a.exe','b.exe','c.exe'.
867 %prompt perlcc a.p -log compilelog # compiles into 'a', saves compilation
868 # info into compilelog, as well
869 # as mirroring to screen
871 %prompt perlcc a.p -log compilelog -verbose cdf
872 # compiles into 'a', saves compilation
873 # info into compilelog, being silent
876 %prompt perlcc a.p -C a.c -gen # generates C code (into a.c) and
877 # stops without compile.
879 %prompt perlcc a.p -L ../lib a.c
880 # Compiles with the perl libraries
881 # inside ../lib included.
885 'perlcc' is the frontend into the perl compiler. Typing 'perlcc a.p'
886 compiles the code inside a.p into a standalone executable, and
887 perlcc A.pm will compile into a shared object, A.so, suitable for inclusion
888 into a perl program via "use A".
890 There are quite a few flags to perlcc which help with such issues as compiling
891 programs in bulk, testing compiled programs for compatibility with the
892 interpreter, and controlling.
898 =item -L < library_directories >
900 Adds directories in B<library_directories> to the compilation command.
902 =item -I < include_directories >
904 Adds directories inside B<include_directories> to the compilation command.
906 =item -C < c_code_name >
908 Explicitly gives the name B<c_code_name> to the generated file containing
909 the C code which is to be compiled. Can only be used if compiling one file
912 =item -o < executable_name >
914 Explicitly gives the name B<executable_name> to the executable which is to be
915 compiled. Can only be used if compiling one file on the command line.
917 =item -e < perl_line_to_execute>
919 Compiles 'one liners', in the same way that B<perl -e> runs text strings at
920 the command line. Default is to have the 'one liner' be compiled, and run all
921 in one go (see B<-run>); giving the B<-o> flag saves the resultant executable,
922 rather than throwing it away. Use '-argv' to pass arguments to the executable
927 Generates bytecode instead of C code.
931 Uses the optimized C backend (C<B::CC>)rather than the simple C backend
932 (C<B::C>). Beware that the optimized C backend creates very large
933 switch structures and structure initializations. Many C compilers
934 find it a challenge to compile the resulting output in finite amounts
935 of time. Many Perl features such as C<goto LABEL> are also not
936 supported by the optimized C backend. The simple C backend should
937 work in more instances, but can only offer modest speed increases.
939 =item -regex <rename_regex>
941 Gives a rule B<rename_regex> - which is a legal perl regular expression - to
942 create executable file names.
944 =item -verbose <verbose_level>
946 Show exactly what steps perlcc is taking to compile your code. You can
947 change the verbosity level B<verbose_level> much in the same way that
948 the C<-D> switch changes perl's debugging level, by giving either a
949 number which is the sum of bits you want or a list of letters
950 representing what you wish to see. Here are the verbosity levels so
953 Bit 1(g): Code Generation Errors to STDERR
954 Bit 2(a): Compilation Errors to STDERR
955 Bit 4(t): Descriptive text to STDERR
956 Bit 8(f): Code Generation Errors to file (B<-log> flag needed)
957 Bit 16(c): Compilation Errors to file (B<-log> flag needed)
958 Bit 32(d): Descriptive text to file (B<-log> flag needed)
960 If the B<-log> tag is given, the default verbose level is 63 (ie: mirroring
961 all of perlcc's output to both the screen and to a log file). If no B<-log>
962 tag is given, then the default verbose level is 7 (ie: outputting all of
963 perlcc's output to STDERR).
965 NOTE: Because of buffering concerns, you CANNOT shadow the output of '-run' to
966 both a file, and to the screen! Suggestions are welcome on how to overcome this
967 difficulty, but for now it simply does not work properly, and hence will only go
972 Opens, for append, a logfile to save some or all of the text for a given
973 compile command. No rewrite version is available, so this needs to be done
976 =item -argv <arguments>
978 In combination with C<-run> or C<-e>, tells perlcc to run the resulting
979 executable with the string B<arguments> as @ARGV.
983 Tells perl to save the intermediate C code. Usually, this C code is the name
984 of the perl code, plus '.c'; 'perlcode.p' gets generated in 'perlcode.p.c',
985 for example. If used with the C<-e> operator, you need to tell perlcc where to
986 save resulting executables.
990 Tells perlcc to only create the intermediate C code, and not compile the
991 results. Does an implicit B<-sav>, saving the C code rather than deleting it.
995 Immediately run the perl code that has been generated. NOTE: IF YOU GIVE THE
996 B<-run> FLAG TO B<perlcc>, THEN THE REST OF @ARGV WILL BE INTERPRETED AS
997 ARGUMENTS TO THE PROGRAM THAT YOU ARE COMPILING.
1001 Indicate that the programs at the command line are programs, and should be
1002 compiled as such. B<perlcc> will automatically determine files to be
1003 programs if they have B<.p>, B<.pl>, B<.bat> extensions.
1007 Indicate that the programs at the command line are modules, and should be
1008 compiled as such. B<perlcc> will automatically determine files to be
1009 modules if they have the extension B<.pm>.
1015 Most of the work of B<perlcc> is done at the command line. However, you can
1016 change the heuristic which determines what is a module and what is a program.
1017 As indicated above, B<perlcc> assumes that the extensions:
1019 .p$, .pl$, and .bat$
1021 indicate a perl program, and:
1025 indicate a library, for the purposes of creating executables. And furthermore,
1026 by default, these extensions will be replaced (and dropped) in the process of
1027 creating an executable.
1029 To change the extensions which are programs, and which are modules, set the
1030 environmental variables:
1035 These two environmental variables take colon-separated, legal perl regular
1036 expressions, and are used by perlcc to decide which objects are which.
1039 setenv PERL_SCRIPT_EXT '.prl$:.perl$'
1040 prompt% perlcc sample.perl
1042 will compile the script 'sample.perl' into the executable 'sample', and
1044 setenv PERL_MODULE_EXT '.perlmod$:.perlmodule$'
1046 prompt% perlcc sample.perlmod
1048 will compile the module 'sample.perlmod' into the shared object
1051 NOTE: the '.' in the regular expressions for PERL_SCRIPT_EXT and PERL_MODULE_EXT
1052 is a literal '.', and not a wild-card. To get a true wild-card, you need to
1053 backslash the '.'; as in:
1055 setenv PERL_SCRIPT_EXT '\.\.\.\.\.'
1057 which would have the effect of compiling ANYTHING (except what is in
1058 PERL_MODULE_EXT) into an executable with 5 less characters in its name.
1060 The PERLCC_OPTS environment variable can be set to the default flags
1061 that must be used by the compiler.
1063 The PERLCC_TIMEOUT environment variable can be set to the number of
1064 seconds to wait for the backends before giving up. This is sometimes
1065 necessary to avoid some compilers taking forever to compile the
1066 generated output. May not work on Windows and similar platforms.
1070 'perlcc' uses a temporary file when you use the B<-e> option to evaluate
1071 text and compile it. This temporary file is 'perlc$$.p'. The temporary C code is
1072 perlc$$.p.c, and the temporary executable is perlc$$.
1074 When you use '-run' and don't save your executable, the temporary executable is
1079 The whole compiler suite (C<perlcc> included) should be considered very
1080 experimental. Use for production purposes is strongly discouraged.
1082 perlcc currently cannot compile shared objects on Win32. This should be fixed
1085 Bugs in the various compiler backends still exist, and are perhaps too
1086 numerous to list here.
1092 close OUT or die "Can't close $file: $!";
1093 chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
1094 exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';