[p5sagit/p5-mst-13.2.git] / installperl

#!./perl

BEGIN {
    require 5.003_90;
    @INC = 'lib';
    $ENV{PERL5LIB} = 'lib';
}

use File::Find;
use File::Compare;
use File::Copy ();
use File::Path ();
use Config;
use subs qw(unlink rename link chmod);

# override the ones in the rest of the script
sub mkpath {
    File::Path::mkpath(@_) unless $nonono;
}

$mainperldir = "/usr/bin";
$exe_ext = $Config{exe_ext};

while (@ARGV) {
    $nonono = 1 if $ARGV[0] eq '-n';
    $versiononly = 1 if $ARGV[0] eq '-v';
    shift;
}

umask 022;

@scripts = qw(	utils/c2ph utils/h2ph utils/h2xs
		utils/perlbug utils/perldoc utils/pl2pm utils/splain
		x2p/s2p x2p/find2perl
		pod/pod2man pod/pod2html pod/pod2latex pod/pod2text);

@pods = (<pod/*.pod>);

%archpms = (Config => 1, FileHandle => 1, overload => 1);
find(sub {
	if ("$File::Find::dir/$_" =~ m{^ext/[^/]+/(.*)\.pm$}) {
	    (my $pm = $1) =~ s{^lib/}{};
	    $archpms{$pm} = 1;
	}
    }, 'ext');

$ver = $];
$release = substr($ver,0,3);   # Not used presently.
$patchlevel = substr($ver,3,2);
die "Patchlevel of perl ($patchlevel)",
    "and patchlevel of config.sh ($Config{'PATCHLEVEL'}) don't match\n"
	if $patchlevel != $Config{'PATCHLEVEL'};

# Fetch some frequently-used items from %Config
$installbin = $Config{installbin};
$installscript = $Config{installscript};
$installprivlib = $Config{installprivlib};
$installarchlib = $Config{installarchlib};
$installsitelib = $Config{installsitelib};
$installsitearch = $Config{installsitearch};
$installman1dir = $Config{installman1dir};
$man1ext = $Config{man1ext};
$libperl = $Config{libperl};
# Shared library and dynamic loading suffixes.
$so = $Config{so};
$dlext = $Config{dlext};

$d_dosuid = $Config{d_dosuid};
$binexp = $Config{binexp};

# Do some quick sanity checks.

if ($d_dosuid && $>) { die "You must run as root to install suidperl\n"; }

   $installbin		|| die "No installbin directory in config.sh\n";
-d $installbin		|| mkpath($installbin, 1, 0777);
-d $installbin		|| $nonono || die "$installbin is not a directory\n";
-w $installbin		|| $nonono || die "$installbin is not writable by you\n"
	unless $installbin =~ m#^/afs/# || $nonono;

-x 'perl' . $exe_ext	|| die "perl isn't executable!\n";
-x 'suidperl' . $exe_ext|| die "suidperl isn't executable!\n" if $d_dosuid;

-x 't/TEST'		|| warn "WARNING: You've never run 'make test'!!!",
	"  (Installing anyway.)\n";

# First we install the version-numbered executables.

safe_unlink("$installbin/perl$ver$exe_ext");
copy("perl$exe_ext", "$installbin/perl$ver$exe_ext");
chmod(0755, "$installbin/perl$ver$exe_ext");

safe_unlink("$installbin/sperl$ver$exe_ext");
if ($d_dosuid) {
    copy("suidperl$exe_ext", "$installbin/sperl$ver$exe_ext");
    chmod(04711, "$installbin/sperl$ver$exe_ext");
}

# Install library files.

$do_installarchlib = $do_installprivlib = 0;
    
mkpath($installprivlib, 1, 0777);
mkpath($installarchlib, 1, 0777);
mkpath($installsitelib, 1, 0777) if ($installsitelib);
mkpath($installsitearch, 1, 0777) if ($installsitearch);

if (chdir "lib") {
    $do_installarchlib = ! samepath($installarchlib, '.');
    $do_installprivlib = ! samepath($installprivlib, '.');
    $do_installprivlib = 0 if $versiononly && !($installprivlib =~ m/\Q$]/);

    if ($do_installarchlib || $do_installprivlib) {
	find(\&installlib, '.');
    }
    chdir ".." || die "Can't cd back to source directory: $!\n";
}
else {
    warn "Can't cd to lib to install lib files: $!\n";
}

# Install header files and libraries.
mkpath("$installarchlib/CORE", 1, 0777);
@corefiles = <*.h libperl*.*>;
# AIX needs perl.exp installed as well.
push(@corefiles,'perl.exp') if $^O eq 'aix';
# If they have built sperl.o...
push(@corefiles,'sperl.o') if -f 'sperl.o';
foreach $file (@corefiles) {
    # HP-UX (at least) needs to maintain execute permissions
    # on dynamically-loaded libraries.
    copy_if_diff($file,"$installarchlib/CORE/$file")
	and chmod($file =~ /^\.(so|$dlext)$/ ? 0555 : 0444,
		   "$installarchlib/CORE/$file");
}

# Offer to install perl in a "standard" location

$mainperl_is_instperl = 0;

if (!$versiononly && !$nonono && -t STDIN && -t STDERR
	&& -w $mainperldir && ! samepath($mainperldir, $installbin)) {
    local($usrbinperl)	= "$mainperldir/perl$exe_ext";
    local($instperl)	= "$installbin/perl$exe_ext";
    local($expinstperl)	= "$binexp/perl$exe_ext";

    # First make sure $usrbinperl is not already the same as the perl we
    # just installed.
    if (-x $usrbinperl) {
	# Try to be clever about mainperl being a symbolic link
	# to binexp/perl if binexp and installbin are different.
	$mainperl_is_instperl =
	    samepath($usrbinperl, $instperl) ||
	    samepath($usrbinperl, $expinstperl) ||
	     (($binexp ne $installbin) &&
	      (-l $usrbinperl) &&
	      ((readlink $usrbinperl) eq $expinstperl));
    }
    if ((! $mainperl_is_instperl) &&
	(yn("Many scripts expect perl to be installed as $usrbinperl.\n" . 
	     "Do you wish to have $usrbinperl be the same as\n" .
	     "$expinstperl? [y] ")))
    {	
	unlink($usrbinperl);
	eval { CORE::link $instperl, $usrbinperl } ||
	    eval { symlink $expinstperl, $usrbinperl } ||
		copy($instperl, $usrbinperl);
	$mainperl_is_instperl = 1;
    }
}

# Make links to ordinary names if installbin directory isn't current directory.

if (! $versiononly && ! samepath($installbin, '.')) {
    safe_unlink("$installbin/perl$exe_ext", "$installbin/suidperl$exe_ext");
    link("$installbin/perl$ver$exe_ext", "$installbin/perl$exe_ext");
    link("$installbin/sperl$ver$exe_ext", "$installbin/suidperl$exe_ext") 
      if $d_dosuid;
}

if (!$versiononly && ! samepath($installbin, 'x2p')) {
    safe_unlink("$installbin/a2p$exe_ext");
    copy("x2p/a2p$exe_ext", "$installbin/a2p$exe_ext");
    chmod(0755, "$installbin/a2p$exe_ext");
}

# cppstdin is just a script, but it is architecture-dependent, so
# it can't safely be shared.  Place it in $installbin.
# Note that Configure doesn't build cppstin if it isn't needed, so
# we skip this if cppstdin doesn't exist.
if (! $versiononly && (-f 'cppstdin') && (! samepath($installbin, '.'))) {
    safe_unlink("$installbin/cppstdin");
    copy("cppstdin", "$installbin/cppstdin");
    chmod(0755, "$installbin/cppstdin");
}

# Install scripts.

mkpath($installscript, 1, 0777);

if (! $versiononly) {
    for (@scripts) {
	(my $base = $_) =~ s#.*/##;
	copy($_, "$installscript/$base");
	chmod(0755, "$installscript/$base");
    }
}

# pstruct should be a link to c2ph

if (! $versiononly) {
    safe_unlink("$installscript/pstruct");
    link("$installscript/c2ph","$installscript/pstruct");
}

# Install pod pages.  Where? I guess in $installprivlib/pod.

if (! $versiononly || !($installprivlib =~ m/\Q$]/)) {
    mkpath("${installprivlib}/pod", 1, 0777);
    foreach $file (@pods) {
	# $file is a name like  pod/perl.pod
	copy_if_diff($file, "${installprivlib}/${file}");
    }
}

# Check to make sure there aren't other perls around in installer's
# path.  This is probably UNIX-specific.  Check all absolute directories
# in the path except for where public executables are supposed to live.
# Also skip $mainperl if the user opted to have it be a link to the
# installed perl.

if (!$versiononly) {

    $dirsep = ($^O eq 'os2') ? ';' : ':' ;
    ($path = $ENV{"PATH"}) =~ s:\\:/:g ;
    @path = split(/$dirsep/, $path);
    @otherperls = ();
    for (@path) {
	next unless m,^/,;
	# Use &samepath here because some systems have other dirs linked
	# to $mainperldir (like SunOS)
	next if samepath($_, $binexp);
	next if ($mainperl_is_instperl && samepath($_, $mainperldir));
	push(@otherperls, "$_/perl$exe_ext")
	    if (-x "$_/perl$exe_ext" && ! -d "$_/perl$exe_ext");
    }
    if (@otherperls) {
	print STDERR "\nWarning: perl appears in your path in the following " .
	    "locations beyond where\nwe just installed it:\n";
	for (@otherperls) {
	    print STDERR "    ", $_, "\n";
	}
	print STDERR "\n";
    }

}

print STDERR "  Installation complete\n";

exit 0;

###############################################################################

sub yn {
    local($prompt) = @_;
    local($answer);
    local($default) = $prompt =~ m/\[([yn])\]\s*$/i;
    print STDERR $prompt;
    chop($answer = <STDIN>);
    $answer = $default if $answer =~ m/^\s*$/;
    ($answer =~ m/^[yY]/);
}

sub unlink {
    local(@names) = @_;
    my($cnt) = 0;

    foreach $name (@names) {
	next unless -e $name;
	chmod 0777, $name if $^O eq 'os2';
	print STDERR "  unlink $name\n";
	( CORE::unlink($name) and ++$cnt 
	  or warn "Couldn't unlink $name: $!\n" ) unless $nonono;
    }
    return $cnt;
}

sub safe_unlink {
    return if $nonono;
    local @names = @_;
    foreach $name (@names) {
	next unless -e $name;
	chmod 0777, $name if $^O eq 'os2';
	print STDERR "  unlink $name\n";
	next if CORE::unlink($name);
	warn "Couldn't unlink $name: $!\n";
	if ($! =~ /busy/i) {
	    print STDERR "  mv $name $name.old\n";
	    safe_rename($name, "$name.old")
		or warn "Couldn't rename $name: $!\n";
	}
    }
}

sub safe_rename {
    local($from,$to) = @_;
    if (-f $to and not unlink($to)) {
	my($i);
	for ($i = 1; $i < 50; $i++) {
	    last if CORE::rename($to, "$to.$i");
	}
	warn("Cannot rename to `$to.$i': $!"), return 0 
	   if $i >= 50;	# Give up!
    }
    link($from,$to) || return 0;
    unlink($from);
}

sub link {
    my($from,$to) = @_;
    my($success) = 0;

    print STDERR "  ln $from $to\n";
    eval {
	CORE::link($from, $to)
	    ? $success++
	    : warn "Couldn't link $from to $to: $!\n"
	  unless $nonono;
    };
    if ($@) {
	File::Copy::copy($from, $to)
	    ? $success++
	    : warn "Couldn't copy $from to $to: $!\n"
	  unless $nonono;
    }
    $success;
}

sub chmod {
    local($mode,$name) = @_;

    printf STDERR "  chmod %o %s\n", $mode, $name;
    CORE::chmod($mode,$name)
	|| warn sprintf("Couldn't chmod %o %s: $!\n", $mode, $name)
      unless $nonono;
}

sub copy {
    my($from,$to) = @_;

    print STDERR "  cp $from $to\n";
    File::Copy::copy($from, $to)
	|| warn "Couldn't copy $from to $to: $!\n"
      unless $nonono;
}

sub samepath {
    local($p1, $p2) = @_;
    local($dev1, $ino1, $dev2, $ino2);

    if ($p1 ne $p2) {
	($dev1, $ino1) = stat($p1);
	($dev2, $ino2) = stat($p2);
	($dev1 == $dev2 && $ino1 == $ino2);
    }
    else {
	1;
    }
}

sub installlib {
    my $dir = $File::Find::dir;
    $dir =~ s#^\.(?![^/])/?##;
    local($depth) = $dir ? "lib/$dir" : "lib";

    my $name = $_;
    
    # ignore patch backups and the .exists files.
    return if $name =~ m{\.orig$|~$|^\.exists};

    $name = "$dir/$name" if $dir ne '';

    my $installlib = $installprivlib;
    if ($dir =~ /^auto/ ||
	  ($name =~ /^(.*)\.(?:pm|pod)$/ && $archpms{$1})) {
        $installlib = $installarchlib;
	return unless $do_installarchlib;
    } else {
	return unless $do_installprivlib;
    }

    if (-f $_) {
	if (/\.al$/ || /\.ix$/) {
	    $installlib = $installprivlib;
	    #We're installing *.al and *.ix files into $installprivlib,
	    #but we have to delete old *.al and *.ix files from the 5.000
	    #distribution:
	    #This might not work because $archname might have changed.
	    unlink("$installarchlib/$name");
	}
	if (compare($_, "$installlib/$name") || $nonono) {
	    unlink("$installlib/$name");
	    mkpath("$installlib/$dir", 1, 0777);
	    # HP-UX (at least) needs to maintain execute permissions
	    # on dynamically-loaded libraries.
	    copy_if_diff($_, "$installlib/$name")
		and chmod($name =~ /\.(so|$dlext)$/o ? 0555 : 0444,
			   "$installlib/$name");
	}
    } elsif (-d $_) {
	mkpath("$installlib/$name", 1, 0777);
    }
}

# Copy $from to $to, only if $from is different than $to.
# Also preserve modification times for .a libraries.
# On some systems, if you do
#   ranlib libperl.a
#   cp libperl.a /usr/local/lib/perl5/archlib/CORE/libperl.a
# and then try to link against the installed libperl.a, you might
# get an error message to the effect that the symbol table is older
# than the library.
# Return true if copying occurred.

sub copy_if_diff {
    my($from,$to)=@_;
    -f $from || die "$0: $from not found";
    if (compare($from, $to) || $nonono) {
	safe_unlink($to);   # In case we don't have write permissions.
        if ($nonono) {
            $from = $depth . "/" . $from if $depth;
        }
	copy($from, $to);
	# Restore timestamps if it's a .a library or for OS/2.
	if (!$nonono && ($^O eq 'os2' || $to =~ /\.a$/)) {
	    my ($atime, $mtime) = (stat $from)[8,9];
	    utime $atime, $mtime, $to;
	}
	1;
    }
}
Commit	Line	Data
c623bd54	1	#!./perl
68dc0745	2
	3	BEGIN {
	4	require 5.003_90;
	5	@INC = 'lib';
	6	$ENV{PERL5LIB} = 'lib';
	7	}
	8
a0d0e21e	9	use File::Find;
5f05dabc	10	use File::Compare;
68dc0745	11	use File::Copy ();
0ecb046b	12	use File::Path ();
4633a7c4	13	use Config;
39add537	14	use subs qw(unlink rename link chmod);
c623bd54	15
0ecb046b	16	# override the ones in the rest of the script
68dc0745	17	sub mkpath {
68dc0745	18	File::Path::mkpath(@_) unless $nonono;
0ecb046b	19	}
0ecb046b	20
bee1dbe2	21	$mainperldir = "/usr/bin";
39add537	22	$exe_ext = $Config{exe_ext};
bee1dbe2	23
c623bd54	24	while (@ARGV) {
	25	$nonono = 1 if $ARGV[0] eq '-n';
	26	$versiononly = 1 if $ARGV[0] eq '-v';
	27	shift;
	28	}
	29
45d8adaa	30	umask 022;
45d8adaa	31
1fef88e7	32	@scripts = qw( utils/c2ph utils/h2ph utils/h2xs
5f05dabc	33	utils/perlbug utils/perldoc utils/pl2pm utils/splain
dd6decf0	34	x2p/s2p x2p/find2perl
dd6decf0	35	pod/pod2man pod/pod2html pod/pod2latex pod/pod2text);
16d20bd9	36
16d20bd9	37	@pods = (<pod/*.pod>);
c623bd54	38
1dd15ed4	39	%archpms = (Config => 1, FileHandle => 1, overload => 1);
	40	find(sub {
	41	if ("$File::Find::dir/$_" =~ m{^ext/[^/]+/(.*)\.pm$}) {
	42	(my $pm = $1) =~ s{^lib/}{};
	43	$archpms{$pm} = 1;
	44	}
	45	}, 'ext');
	46
748a9306	47	$ver = $];
4633a7c4	48	$release = substr($ver,0,3); # Not used presently.
bee1dbe2	49	$patchlevel = substr($ver,3,2);
748a9306	50	die "Patchlevel of perl ($patchlevel)",
4633a7c4	51	"and patchlevel of config.sh ($Config{'PATCHLEVEL'}) don't match\n"
	52	if $patchlevel != $Config{'PATCHLEVEL'};
	53
	54	# Fetch some frequently-used items from %Config
	55	$installbin = $Config{installbin};
	56	$installscript = $Config{installscript};
	57	$installprivlib = $Config{installprivlib};
	58	$installarchlib = $Config{installarchlib};
	59	$installsitelib = $Config{installsitelib};
	60	$installsitearch = $Config{installsitearch};
	61	$installman1dir = $Config{installman1dir};
	62	$man1ext = $Config{man1ext};
15792f64	63	$libperl = $Config{libperl};
4633a7c4	64	# Shared library and dynamic loading suffixes.
	65	$so = $Config{so};
	66	$dlext = $Config{dlext};
	67
	68	$d_dosuid = $Config{d_dosuid};
	69	$binexp = $Config{binexp};
c623bd54	70
	71	# Do some quick sanity checks.
	72
	73	if ($d_dosuid && $>) { die "You must run as root to install suidperl\n"; }
	74
fe14fcc3	75	$installbin \|\| die "No installbin directory in config.sh\n";
fcbdbaa8	76	-d $installbin \|\| mkpath($installbin, 1, 0777);
0ecb046b	77	-d $installbin \|\| $nonono \|\| die "$installbin is not a directory\n";
0ecb046b	78	-w $installbin \|\| $nonono \|\| die "$installbin is not writable by you\n"
3edbfbe5	79	unless $installbin =~ m#^/afs/# \|\| $nonono;
c623bd54	80
39add537	81	-x 'perl' . $exe_ext \|\| die "perl isn't executable!\n";
39add537	82	-x 'suidperl' . $exe_ext\|\| die "suidperl isn't executable!\n" if $d_dosuid;
c623bd54	83
fe14fcc3	84	-x 't/TEST' \|\| warn "WARNING: You've never run 'make test'!!!",
fe14fcc3	85	" (Installing anyway.)\n";
c623bd54	86
	87	# First we install the version-numbered executables.
	88
68dc0745	89	safe_unlink("$installbin/perl$ver$exe_ext");
	90	copy("perl$exe_ext", "$installbin/perl$ver$exe_ext");
	91	chmod(0755, "$installbin/perl$ver$exe_ext");
c623bd54	92
68dc0745	93	safe_unlink("$installbin/sperl$ver$exe_ext");
c623bd54	94	if ($d_dosuid) {
68dc0745	95	copy("suidperl$exe_ext", "$installbin/sperl$ver$exe_ext");
68dc0745	96	chmod(04711, "$installbin/sperl$ver$exe_ext");
c623bd54	97	}
c623bd54	98
45d8adaa	99	# Install library files.
45d8adaa	100
a0d0e21e	101	$do_installarchlib = $do_installprivlib = 0;
a0d0e21e	102
fcbdbaa8	103	mkpath($installprivlib, 1, 0777);
	104	mkpath($installarchlib, 1, 0777);
	105	mkpath($installsitelib, 1, 0777) if ($installsitelib);
	106	mkpath($installsitearch, 1, 0777) if ($installsitearch);
4633a7c4	107
45d8adaa	108	if (chdir "lib") {
68dc0745	109	$do_installarchlib = ! samepath($installarchlib, '.');
68dc0745	110	$do_installprivlib = ! samepath($installprivlib, '.');
b971f6e4	111	$do_installprivlib = 0 if $versiononly && !($installprivlib =~ m/\Q$]/);
45d8adaa	112
a0d0e21e	113	if ($do_installarchlib \|\| $do_installprivlib) {
a0d0e21e	114	find(\&installlib, '.');
45d8adaa	115	}
	116	chdir ".." \|\| die "Can't cd back to source directory: $!\n";
	117	}
	118	else {
	119	warn "Can't cd to lib to install lib files: $!\n";
	120	}
	121
1aef975c	122	# Install header files and libraries.
fcbdbaa8	123	mkpath("$installarchlib/CORE", 1, 0777);
340f689c	124	@corefiles = <.h libperl.*>;
1aef975c	125	# AIX needs perl.exp installed as well.
340f689c	126	push(@corefiles,'perl.exp') if $^O eq 'aix';
fed7345c	127	# If they have built sperl.o...
340f689c	128	push(@corefiles,'sperl.o') if -f 'sperl.o';
340f689c	129	foreach $file (@corefiles) {
aa3cf465	130	# HP-UX (at least) needs to maintain execute permissions
aa3cf465	131	# on dynamically-loaded libraries.
68dc0745	132	copy_if_diff($file,"$installarchlib/CORE/$file")
68dc0745	133	and chmod($file =~ /^\.(so\|$dlext)$/ ? 0555 : 0444,
aa3cf465	134	"$installarchlib/CORE/$file");
340f689c	135	}
3edbfbe5	136
a0d0e21e	137	# Offer to install perl in a "standard" location
a0d0e21e	138
a0d0e21e	139	$mainperl_is_instperl = 0;
a0d0e21e	140
b971f6e4	141	if (!$versiononly && !$nonono && -t STDIN && -t STDERR
68dc0745	142	&& -w $mainperldir && ! samepath($mainperldir, $installbin)) {
55497cff	143	local($usrbinperl) = "$mainperldir/perl$exe_ext";
	144	local($instperl) = "$installbin/perl$exe_ext";
	145	local($expinstperl) = "$binexp/perl$exe_ext";
	146
	147	# First make sure $usrbinperl is not already the same as the perl we
	148	# just installed.
	149	if (-x $usrbinperl) {
a0d0e21e	150	# Try to be clever about mainperl being a symbolic link
	151	# to binexp/perl if binexp and installbin are different.
	152	$mainperl_is_instperl =
68dc0745	153	samepath($usrbinperl, $instperl) \|\|
68dc0745	154	samepath($usrbinperl, $expinstperl) \|\|
a0d0e21e	155	(($binexp ne $installbin) &&
55497cff	156	(-l $usrbinperl) &&
55497cff	157	((readlink $usrbinperl) eq $expinstperl));
a0d0e21e	158	}
a0d0e21e	159	if ((! $mainperl_is_instperl) &&
68dc0745	160	(yn("Many scripts expect perl to be installed as $usrbinperl.\n" .
55497cff	161	"Do you wish to have $usrbinperl be the same as\n" .
55497cff	162	"$expinstperl? [y] ")))
a0d0e21e	163	{
55497cff	164	unlink($usrbinperl);
	165	eval { CORE::link $instperl, $usrbinperl } \|\|
	166	eval { symlink $expinstperl, $usrbinperl } \|\|
68dc0745	167	copy($instperl, $usrbinperl);
a0d0e21e	168	$mainperl_is_instperl = 1;
	169	}
	170	}
	171
b971f6e4	172	# Make links to ordinary names if installbin directory isn't current directory.
b971f6e4	173
68dc0745	174	if (! $versiononly && ! samepath($installbin, '.')) {
	175	safe_unlink("$installbin/perl$exe_ext", "$installbin/suidperl$exe_ext");
	176	link("$installbin/perl$ver$exe_ext", "$installbin/perl$exe_ext");
	177	link("$installbin/sperl$ver$exe_ext", "$installbin/suidperl$exe_ext")
b971f6e4	178	if $d_dosuid;
	179	}
	180
68dc0745	181	if (!$versiononly && ! samepath($installbin, 'x2p')) {
	182	safe_unlink("$installbin/a2p$exe_ext");
	183	copy("x2p/a2p$exe_ext", "$installbin/a2p$exe_ext");
	184	chmod(0755, "$installbin/a2p$exe_ext");
b971f6e4	185	}
	186
	187	# cppstdin is just a script, but it is architecture-dependent, so
	188	# it can't safely be shared. Place it in $installbin.
	189	# Note that Configure doesn't build cppstin if it isn't needed, so
	190	# we skip this if cppstdin doesn't exist.
68dc0745	191	if (! $versiononly && (-f 'cppstdin') && (! samepath($installbin, '.'))) {
	192	safe_unlink("$installbin/cppstdin");
	193	copy("cppstdin", "$installbin/cppstdin");
	194	chmod(0755, "$installbin/cppstdin");
b971f6e4	195	}
	196
	197	# Install scripts.
	198
	199	mkpath($installscript, 1, 0777);
	200
	201	if (! $versiononly) {
	202	for (@scripts) {
68dc0745	203	(my $base = $_) =~ s#.*/##;
	204	copy($_, "$installscript/$base");
	205	chmod(0755, "$installscript/$base");
b971f6e4	206	}
	207	}
	208
	209	# pstruct should be a link to c2ph
	210
	211	if (! $versiononly) {
68dc0745	212	safe_unlink("$installscript/pstruct");
68dc0745	213	link("$installscript/c2ph","$installscript/pstruct");
b971f6e4	214	}
	215
	216	# Install pod pages. Where? I guess in $installprivlib/pod.
	217
68dc0745	218	if (! $versiononly \|\| !($installprivlib =~ m/\Q$]/)) {
b971f6e4	219	mkpath("${installprivlib}/pod", 1, 0777);
	220	foreach $file (@pods) {
	221	# $file is a name like pod/perl.pod
68dc0745	222	copy_if_diff($file, "${installprivlib}/${file}");
b971f6e4	223	}
	224	}
	225
a0d0e21e	226	# Check to make sure there aren't other perls around in installer's
	227	# path. This is probably UNIX-specific. Check all absolute directories
	228	# in the path except for where public executables are supposed to live.
	229	# Also skip $mainperl if the user opted to have it be a link to the
	230	# installed perl.
	231
b971f6e4	232	if (!$versiononly) {
	233
	234	$dirsep = ($^O eq 'os2') ? ';' : ':' ;
	235	($path = $ENV{"PATH"}) =~ s:\\:/:g ;
	236	@path = split(/$dirsep/, $path);
	237	@otherperls = ();
	238	for (@path) {
	239	next unless m,^/,;
	240	# Use &samepath here because some systems have other dirs linked
	241	# to $mainperldir (like SunOS)
68dc0745	242	next if samepath($_, $binexp);
68dc0745	243	next if ($mainperl_is_instperl && samepath($_, $mainperldir));
b971f6e4	244	push(@otherperls, "$_/perl$exe_ext")
	245	if (-x "$_/perl$exe_ext" && ! -d "$_/perl$exe_ext");
	246	}
	247	if (@otherperls) {
	248	print STDERR "\nWarning: perl appears in your path in the following " .
	249	"locations beyond where\nwe just installed it:\n";
	250	for (@otherperls) {
	251	print STDERR " ", $_, "\n";
	252	}
	253	print STDERR "\n";
a0d0e21e	254	}
b971f6e4	255
a0d0e21e	256	}
a0d0e21e	257
c623bd54	258	print STDERR " Installation complete\n";
	259
	260	exit 0;
	261
	262	###############################################################################
	263
a0d0e21e	264	sub yn {
	265	local($prompt) = @_;
	266	local($answer);
	267	local($default) = $prompt =~ m/\[([yn])\]\s*$/i;
	268	print STDERR $prompt;
	269	chop($answer = <STDIN>);
	270	$answer = $default if $answer =~ m/^\s*$/;
	271	($answer =~ m/^[yY]/);
	272	}
	273
c623bd54	274	sub unlink {
c623bd54	275	local(@names) = @_;
39add537	276	my($cnt) = 0;
c623bd54	277
	278	foreach $name (@names) {
	279	next unless -e $name;
39add537	280	chmod 0777, $name if $^O eq 'os2';
c623bd54	281	print STDERR " unlink $name\n";
39add537	282	( CORE::unlink($name) and ++$cnt
39add537	283	or warn "Couldn't unlink $name: $!\n" ) unless $nonono;
c623bd54	284	}
39add537	285	return $cnt;
c623bd54	286	}
c623bd54	287
e50aee73	288	sub safe_unlink {
68dc0745	289	return if $nonono;
68dc0745	290	local @names = @_;
e50aee73	291	foreach $name (@names) {
e50aee73	292	next unless -e $name;
39add537	293	chmod 0777, $name if $^O eq 'os2';
	294	print STDERR " unlink $name\n";
	295	next if CORE::unlink($name);
e50aee73	296	warn "Couldn't unlink $name: $!\n";
	297	if ($! =~ /busy/i) {
	298	print STDERR " mv $name $name.old\n";
68dc0745	299	safe_rename($name, "$name.old")
68dc0745	300	or warn "Couldn't rename $name: $!\n";
e50aee73	301	}
	302	}
	303	}
	304
68dc0745	305	sub safe_rename {
e50aee73	306	local($from,$to) = @_;
39add537	307	if (-f $to and not unlink($to)) {
e50aee73	308	my($i);
e50aee73	309	for ($i = 1; $i < 50; $i++) {
39add537	310	last if CORE::rename($to, "$to.$i");
e50aee73	311	}
39add537	312	warn("Cannot rename to `$to.$i': $!"), return 0
39add537	313	if $i >= 50; # Give up!
e50aee73	314	}
	315	link($from,$to) \|\| return 0;
	316	unlink($from);
	317	}
	318
c623bd54	319	sub link {
15792f64	320	my($from,$to) = @_;
15792f64	321	my($success) = 0;
c623bd54	322
c623bd54	323	print STDERR " ln $from $to\n";
39add537	324	eval {
68dc0745	325	CORE::link($from, $to)
	326	? $success++
	327	: warn "Couldn't link $from to $to: $!\n"
	328	unless $nonono;
39add537	329	};
39add537	330	if ($@) {
68dc0745	331	File::Copy::copy($from, $to)
	332	? $success++
	333	: warn "Couldn't copy $from to $to: $!\n"
	334	unless $nonono;
39add537	335	}
15792f64	336	$success;
c623bd54	337	}
	338
	339	sub chmod {
	340	local($mode,$name) = @_;
	341
	342	printf STDERR " chmod %o %s\n", $mode, $name;
68dc0745	343	CORE::chmod($mode,$name)
	344	\|\| warn sprintf("Couldn't chmod %o %s: $!\n", $mode, $name)
	345	unless $nonono;
	346	}
	347
	348	sub copy {
	349	my($from,$to) = @_;
	350
	351	print STDERR " cp $from $to\n";
	352	File::Copy::copy($from, $to)
	353	\|\| warn "Couldn't copy $from to $to: $!\n"
	354	unless $nonono;
c623bd54	355	}
c623bd54	356
a0d0e21e	357	sub samepath {
	358	local($p1, $p2) = @_;
	359	local($dev1, $ino1, $dev2, $ino2);
	360
75f92628	361	if ($p1 ne $p2) {
a0d0e21e	362	($dev1, $ino1) = stat($p1);
	363	($dev2, $ino2) = stat($p2);
	364	($dev1 == $dev2 && $ino1 == $ino2);
	365	}
	366	else {
	367	1;
	368	}
	369	}
	370
	371	sub installlib {
	372	my $dir = $File::Find::dir;
	373	$dir =~ s#^\.(?![^/])/?##;
0ecb046b	374	local($depth) = $dir ? "lib/$dir" : "lib";
a0d0e21e	375
a0d0e21e	376	my $name = $_;
e50aee73	377
	378	# ignore patch backups and the .exists files.
	379	return if $name =~ m{\.orig$\|~$\|^\.exists};
	380
a0d0e21e	381	$name = "$dir/$name" if $dir ne '';
	382
	383	my $installlib = $installprivlib;
1dd15ed4	384	if ($dir =~ /^auto/ \|\|
1dd15ed4	385	($name =~ /^(.*)\.(?:pm\|pod)$/ && $archpms{$1})) {
a0d0e21e	386	$installlib = $installarchlib;
	387	return unless $do_installarchlib;
	388	} else {
	389	return unless $do_installprivlib;
	390	}
	391
a0d0e21e	392	if (-f $_) {
3edbfbe5	393	if (/\.al$/ \|\| /\.ix$/) {
	394	$installlib = $installprivlib;
	395	#We're installing .al and .ix files into $installprivlib,
	396	#but we have to delete old .al and .ix files from the 5.000
	397	#distribution:
75f92628	398	#This might not work because $archname might have changed.
68dc0745	399	unlink("$installarchlib/$name");
3edbfbe5	400	}
5f05dabc	401	if (compare($_, "$installlib/$name") \|\| $nonono) {
68dc0745	402	unlink("$installlib/$name");
fcbdbaa8	403	mkpath("$installlib/$dir", 1, 0777);
75f92628	404	# HP-UX (at least) needs to maintain execute permissions
75f92628	405	# on dynamically-loaded libraries.
68dc0745	406	copy_if_diff($_, "$installlib/$name")
68dc0745	407	and chmod($name =~ /\.(so\|$dlext)$/o ? 0555 : 0444,
aa3cf465	408	"$installlib/$name");
a0d0e21e	409	}
a0d0e21e	410	} elsif (-d $_) {
fcbdbaa8	411	mkpath("$installlib/$name", 1, 0777);
a0d0e21e	412	}
a0d0e21e	413	}
3edbfbe5	414
16d20bd9	415	# Copy $from to $to, only if $from is different than $to.
	416	# Also preserve modification times for .a libraries.
	417	# On some systems, if you do
	418	# ranlib libperl.a
	419	# cp libperl.a /usr/local/lib/perl5/archlib/CORE/libperl.a
	420	# and then try to link against the installed libperl.a, you might
	421	# get an error message to the effect that the symbol table is older
	422	# than the library.
aa3cf465	423	# Return true if copying occurred.
68dc0745	424
68dc0745	425	sub copy_if_diff {
3edbfbe5	426	my($from,$to)=@_;
3edbfbe5	427	-f $from \|\| die "$0: $from not found";
5f05dabc	428	if (compare($from, $to) \|\| $nonono) {
68dc0745	429	safe_unlink($to); # In case we don't have write permissions.
0ecb046b	430	if ($nonono) {
	431	$from = $depth . "/" . $from if $depth;
	432	}
68dc0745	433	copy($from, $to);
	434	# Restore timestamps if it's a .a library or for OS/2.
	435	if (!$nonono && ($^O eq 'os2' \|\| $to =~ /\.a$/)) {
	436	my ($atime, $mtime) = (stat $from)[8,9];
16d20bd9	437	utime $atime, $mtime, $to;
16d20bd9	438	}
aa3cf465	439	1;
3edbfbe5	440	}
3edbfbe5	441	}