[p5sagit/p5-mst-13.2.git] / make_ext.pl

#!./miniperl
use strict;
use warnings;
use Config;
BEGIN {
    unshift @INC, $^O eq 'MSWin32' ? '../cpan/Cwd' : 'cpan/Cwd';
}
use Cwd;

# To clarify, this isn't the entire suite of modules considered "toolchain"
# It's not even all modules needed to build ext/
# It's just the source paths of the (minimum complete set of) modules in ext/
# needed to build the nonxs modules
# After which, all nonxs modules are in lib, which was always sufficient to
# allow miniperl to build everything else.

my @toolchain = qw(ext/constant/lib cpan/Cwd cpan/Cwd/lib
		   ext/ExtUtils-Command/lib
		   dist/ExtUtils-Install/lib ext/ExtUtils-MakeMaker/lib
		   ext/ExtUtils-Manifest/lib ext/Text-ParseWords/lib
		   cpan/File-Path/lib cpan/AutoLoader/lib);

my @ext_dirs = qw(cpan dist ext);
my $ext_dirs_re = '(?:' . join('|', @ext_dirs) . ')';

# This script acts as a simple interface for building extensions.

# It's actually a cut and shut of the Unix version ext/utils/makeext and the
# Windows version win32/build_ext.pl hence the two invocation styles.

# On Unix, it primarily used by the perl Makefile one extention at a time:
#
# d_dummy $(dynamic_ext): miniperl preplibrary FORCE
# 	@$(RUN) ./miniperl make_ext.pl --target=dynamic $@ MAKE=$(MAKE) LIBPERL_A=$(LIBPERL)
#
# On Windows or VMS,
# If '--static' is specified, static extensions will be built.
# If '--dynamic' is specified, dynamic extensions will be built.
# If '--nonxs' is specified, nonxs extensions will be built.
# If '--dynaloader' is specificied, DynaLoader will be built.
# If '--all' is specified, all extensions will be built.
#
#    make_ext.pl "MAKE=make [-make_opts]" --dir=directory [--target=target] [--static|--dynamic|--all] +ext2 !ext1
#
# E.g.
# 
#     make_ext.pl "MAKE=nmake -nologo" --dir=..\ext
# 
#     make_ext.pl "MAKE=nmake -nologo" --dir=..\ext --target=clean
# 
#     make_ext.pl MAKE=dmake --dir=..\ext
# 
#     make_ext.pl MAKE=dmake --dir=..\ext --target=clean
# 
# Will skip building extensions which are marked with an '!' char.
# Mostly because they still not ported to specified platform.
# 
# If any extensions are listed with a '+' char then only those
# extensions will be built, but only if they arent countermanded
# by an '!ext' and are appropriate to the type of building being done.

# It may be deleted in a later release of perl so try to
# avoid using it for other purposes.

my $is_Win32 = $^O eq 'MSWin32';
my $is_VMS = $^O eq 'VMS';
my $is_Unix = !$is_Win32 && !$is_VMS;

require FindExt if $is_Win32;

my (%excl, %incl, %opts, @extspec, @pass_through);

foreach (@ARGV) {
    if (/^!(.*)$/) {
	$excl{$1} = 1;
    } elsif (/^\+(.*)$/) {
	$incl{$1} = 1;
    } elsif (/^--([\w\-]+)$/) {
	$opts{$1} = 1;
    } elsif (/^--([\w\-]+)=(.*)$/) {
	push @{$opts{$1}}, $2;
    } elsif (/=/) {
	push @pass_through, $_;
    } elsif (length) {
	push @extspec, $_;
    }
}

my $static = $opts{static} || $opts{all};
my $dynamic = $opts{dynamic} || $opts{all};
my $nonxs = $opts{nonxs} || $opts{all};
my $dynaloader = $opts{dynaloader} || $opts{all};

# The Perl Makefile.SH will expand all extensions to
#	lib/auto/X/X.a  (or lib/auto/X/Y/Y.a if nested)
# A user wishing to run make_ext might use
#	X (or X/Y or X::Y if nested)

# canonise into X/Y form (pname)

foreach (@extspec) {
    if (s{^lib/auto/}{}) {
	# Remove lib/auto prefix and /*.* suffix
	s{/[^/]+\.[^/]+$}{};
    } elsif (s{^$ext_dirs_re/}{}) {
	# Remove ext/ prefix and /pm_to_blib suffix
	s{/pm_to_blib$}{};
	# Targets are given as files on disk, but the extension spec is still
	# written using /s for each ::
	tr!-!/!;
    } elsif (s{::}{\/}g) {
	# Convert :: to /
    } else {
	s/\..*o//;
    }
}

my $makecmd  = shift @pass_through; # Should be something like MAKE=make
unshift @pass_through, 'PERL_CORE=1';

my @dirs  = @{$opts{dir} || \@ext_dirs};
my $target   = $opts{target}[0];
$target = 'all' unless defined $target;

# Previously, $make was taken from config.sh.  However, the user might
# instead be running a possibly incompatible make.  This might happen if
# the user types "gmake" instead of a plain "make", for example.  The
# correct current value of MAKE will come through from the main perl
# makefile as MAKE=/whatever/make in $makecmd.  We'll be cautious in
# case third party users of this script (are there any?) don't have the
# MAKE=$(MAKE) argument, which was added after 5.004_03.
unless(defined $makecmd and $makecmd =~ /^MAKE=(.*)$/) {
    die "$0:  WARNING:  Please include MAKE=\$(MAKE) in \@ARGV\n";
}

# This isn't going to cope with anything fancy, such as spaces inside command
# names, but neither did what it replaced. Once there is a use case that needs
# it, please supply patches. Until then, I'm sticking to KISS
my @make = split ' ', $1 || $Config{make} || $ENV{MAKE};
# Using an array of 0 or 1 elements makes the subsequent code simpler.
my @run = $Config{run};
@run = () if not defined $run[0] or $run[0] eq '';


if ($target eq '') {
    die "make_ext: no make target specified (eg all or clean)\n";
} elsif ($target !~ /(?:^all|clean)$/) {
    # for the time being we are strict about what make_ext is used for
    die "$0: unknown make target '$target'\n";
}

if (!@extspec and !$static and !$dynamic and !$nonxs and !$dynaloader)  {
    die "$0: no extension specified\n";
}

my $perl;
my %extra_passthrough;

if ($is_Win32) {
    (my $here = getcwd()) =~ s{/}{\\}g;
    $perl = $^X;
    if ($perl =~ m#^\.\.#) {
	$perl = "$here\\$perl";
    }
    (my $topdir = $perl) =~ s/\\[^\\]+$//;
    # miniperl needs to find perlglob and pl2bat
    $ENV{PATH} = "$topdir;$topdir\\win32\\bin;$ENV{PATH}";
    my $pl2bat = "$topdir\\win32\\bin\\pl2bat";
    unless (-f "$pl2bat.bat") {
	my @args = ($perl, "-I$topdir\\lib", ("$pl2bat.pl") x 2);
	print "@args\n";
	system(@args) unless defined $::Cross::platform;
    }

    my $build = getcwd();
    print "In $build";
    foreach my $dir (@dirs) {
	chdir($dir) or die "Cannot cd to $dir: $!\n";
	(my $ext = getcwd()) =~ s{/}{\\}g;
	FindExt::scan_ext($ext);
	FindExt::set_static_extensions(split ' ', $Config{static_ext});

	my @ext;
	push @ext, FindExt::static_ext() if $static;
	push @ext, FindExt::dynamic_ext() if $dynamic;
	push @ext, FindExt::nonxs_ext() if $nonxs;
	push @ext, 'DynaLoader' if $dynaloader;

	foreach (sort @ext) {
	    if (%incl and !exists $incl{$_}) {
		#warn "Skipping extension $ext\\$_, not in inclusion list\n";
		next;
	    }
	    if (exists $excl{$_}) {
		warn "Skipping extension $ext\\$_, not ported to current platform";
		next;
	    }
	    push @extspec, $_;
	    if($_ eq 'DynaLoader') {
		# No, we don't know why nmake can't work out the dependency chain
		push @{$extra_passthrough{$_}}, 'DynaLoader.c';
	    } elsif(FindExt::is_static($_)) {
		push @{$extra_passthrough{$_}}, 'LINKTYPE=static';
	    }
	}
	chdir $build
	    or die "Couldn't chdir to '$build': $!"; # restore our start directory
    }
    chdir '..'
	or die "Couldn't chdir to build directory: $!"; # now in the Perl build directory
}
elsif ($is_VMS) {
    $perl = $^X;
    push @extspec, (split ' ', $Config{static_ext}) if $static;
    push @extspec, (split ' ', $Config{dynamic_ext}) if $dynamic;
    push @extspec, (split ' ', $Config{nonxs_ext}) if $nonxs;
    push @extspec, 'DynaLoader' if $dynaloader;
}

{
    # Cwd needs to be built before Encode recurses into subdirectories.
    # This seems to be the simplest way to ensure this ordering:
    my (@first, @other);
    foreach (@extspec) {
	if ($_ eq 'Cwd') {
	    push @first, $_;
	} else {
	    push @other, $_;
	}
    }
    @extspec = (@first, @other);
}

foreach my $spec (@extspec)  {
    my $mname = $spec;
    $mname =~ s!/!::!g;
    my $ext_pathname;
    if (-d "ext/$spec"
	# Temporary hack to cope with smokers that are not clearing directories:
	&& $spec =~ m!/!
       ) {
	# Old style ext/Data/Dumper/
	$ext_pathname = "ext/$spec";
    } else {
	# New style ext/Data-Dumper/
	my $copy = $spec;
	$copy =~ tr!/!-!;
	foreach my $dir (@ext_dirs) {
	    if (-d "$dir/$copy") {
		$ext_pathname = "$dir/$copy";
		last;
	    }
	}
	if (!defined $ext_pathname) {
	    warn "Can't find extension $spec in any of @ext_dirs";
	    next;
	}
    }

    if ($Config{osname} eq 'catamount') {
	# Snowball's chance of building extensions.
	die "This is $Config{osname}, not building $mname, sorry.\n";
    }

    print "\tMaking $mname ($target)\n";

    build_extension($ext_pathname, $perl, $mname,
		    [@pass_through, @{$extra_passthrough{$spec} || []}]);
}

sub build_extension {
    my ($ext_dir, $perl, $mname, $pass_through) = @_;

    my $up = $ext_dir;
    $up =~ s![^/]+!..!g;

    $perl ||= "$up/miniperl";
    my $return_dir = $up;
    my $lib_dir = "$up/lib";
    # $lib_dir must be last, as we're copying files into it, and in a parallel
    # make there's a race condition if one process tries to open a module that
    # another process has half-written.
    $ENV{PERL5LIB}
	= join $Config{path_sep}, (map {"$up/$_"} @toolchain), $lib_dir;
    $ENV{PERL_CORE} = 1;

    unless (chdir "$ext_dir") {
	warn "Cannot cd to $ext_dir: $!";
	return;
    }
    my $makefile;
    if ($is_VMS) {
	$makefile = 'descrip.mms';
	if ($target =~ /clean$/
	    && !-f $makefile
	    && -f "${makefile}_old") {
	    $makefile = "${makefile}_old";
	}
    } else {
	$makefile = 'Makefile';
    }
    
    if (!-f $makefile) {
	if (!-f 'Makefile.PL') {
	    print "\nCreating Makefile.PL in $ext_dir for $mname\n";
	    # We need to cope well with various possible layouts
	    my @dirs = split /::/, $mname;
	    my $leaf = pop @dirs;
	    my $leafname = "$leaf.pm";
	    my $pathname = join '/', @dirs, $leafname;
	    my @locations = ($leafname, $pathname, "lib/$pathname");
	    my $fromname;
	    foreach (@locations) {
		if (-f $_) {
		    $fromname = $_;
		    last;
		}
	    }

	    unless ($fromname) {
		die "For $mname tried @locations in in $ext_dir but can't find source";
	    }
            my $pod_name;
	    ($pod_name = $fromname) =~ s/\.pm\z/.pod/;
	    $pod_name = $fromname unless -e $pod_name;
	    open my $fh, '>', 'Makefile.PL'
		or die "Can't open Makefile.PL for writing: $!";
	    print $fh <<"EOM";
#-*- buffer-read-only: t -*-

# This Makefile.PL was written by $0.
# It will be deleted automatically by make realclean

use strict;
use ExtUtils::MakeMaker;

WriteMakefile(
    NAME          => '$mname',
    VERSION_FROM  => '$fromname',
    ABSTRACT_FROM => '$pod_name',
    realclean     => {FILES => 'Makefile.PL'},
);

# ex: set ro:
EOM
	    close $fh or die "Can't close Makefile.PL: $!";
	}
	print "\nRunning Makefile.PL in $ext_dir\n";

	# Presumably this can be simplified
	my @cross;
	if (defined $::Cross::platform) {
	    # Inherited from win32/buildext.pl
	    @cross = "-MCross=$::Cross::platform";
	} elsif ($opts{cross}) {
	    # Inherited from make_ext.pl
	    @cross = '-MCross';
	}
	    
	my @args = (@cross, 'Makefile.PL');
	if ($is_VMS) {
	    my $libd = VMS::Filespec::vmspath($lib_dir);
	    push @args, "INST_LIB=$libd", "INST_ARCHLIB=$libd";
	} else {
	    push @args, 'INSTALLDIRS=perl', 'INSTALLMAN1DIR=none',
		'INSTALLMAN3DIR=none';
	}
	push @args, @$pass_through;
	_quote_args(\@args) if $is_VMS;
	print join(' ', @run, $perl, @args), "\n";
	my $code = system @run, $perl, @args;
	warn "$code from $ext_dir\'s Makefile.PL" if $code;

	# Right. The reason for this little hack is that we're sitting inside
	# a program run by ./miniperl, but there are tasks we need to perform
	# when the 'realclean', 'distclean' or 'veryclean' targets are run.
	# Unfortunately, they can be run *after* 'clean', which deletes
	# ./miniperl
	# So we do our best to leave a set of instructions identical to what
	# we would do if we are run directly as 'realclean' etc
	# Whilst we're perfect, unfortunately the targets we call are not, as
	# some of them rely on a $(PERL) for their own distclean targets.
	# But this always used to be a problem with the old /bin/sh version of
	# this.
	if ($is_Unix) {
	    my $suffix = '.sh';
	    foreach my $clean_target ('realclean', 'veryclean') {
		my $file = "$return_dir/$clean_target$suffix";
		open my $fh, '>>', $file or die "open $file: $!";
		# Quite possible that we're being run in parallel here.
		# Can't use Fcntl this early to get the LOCK_EX
		flock $fh, 2 or warn "flock $file: $!";
		print $fh <<"EOS";
cd $ext_dir
if test ! -f Makefile -a -f Makefile.old; then
    echo "Note: Using Makefile.old"
    make -f Makefile.old $clean_target MAKE='@make' @pass_through
else
    if test ! -f Makefile ; then
	echo "Warning: No Makefile!"
    fi
    make $clean_target MAKE='@make' @pass_through
fi
cd $return_dir
EOS
		close $fh or die "close $file: $!";
	    }
	}
    }

    if (not -f $makefile) {
	print "Warning: No Makefile!\n";
    }

    if ($is_VMS) {
	_macroify_passthrough($pass_through);
	unshift @$pass_through, "/DESCRIPTION=$makefile";
    }

    if (!$target or $target !~ /clean$/) {
	# Give makefile an opportunity to rewrite itself.
	# reassure users that life goes on...
	my @args = ('config', @$pass_through);
	_quote_args(\@args) if $is_VMS;
	system(@run, @make, @args) and print "@run @make @args failed, continuing anyway...\n";
    }
    my @targ = ($target, @$pass_through);
    _quote_args(\@targ) if $is_VMS;
    print "Making $target in $ext_dir\n@run @make @targ\n";
    my $code = system(@run, @make, @targ);
    die "Unsuccessful make($ext_dir): code=$code" if $code != 0;

    chdir $return_dir || die "Cannot cd to $return_dir: $!";
}

sub _quote_args {
    my $args = shift; # must be array reference

    # Do not quote qualifiers that begin with '/'.
    map { if (!/^\//) {
          $_ =~ s/\"/""/g;     # escape C<"> by doubling
          $_ = q(").$_.q(");
        }
    } @{$args}
    ;
}

sub _macroify_passthrough {
    my $passthrough = shift;
    _quote_args($passthrough);
    my $macro = '/MACRO=(' . join(',',@$passthrough) . ')';
    @$passthrough = ();
    @$passthrough[0] = $macro;  
}
Commit	Line	Data
61edc683	1	#!./miniperl
a2f19a19	2	use strict;
a2f19a19	3	use warnings;
b8d39eba	4	use Config;
c3ef65fb	5	BEGIN {
1487a039	6	unshift @INC, $^O eq 'MSWin32' ? '../cpan/Cwd' : 'cpan/Cwd';
c3ef65fb	7	}
286d62c2	8	use Cwd;
75f92628	9
392ef80c	10	# To clarify, this isn't the entire suite of modules considered "toolchain"
	11	# It's not even all modules needed to build ext/
	12	# It's just the source paths of the (minimum complete set of) modules in ext/
	13	# needed to build the nonxs modules
	14	# After which, all nonxs modules are in lib, which was always sufficient to
	15	# allow miniperl to build everything else.
	16
1487a039	17	my @toolchain = qw(ext/constant/lib cpan/Cwd cpan/Cwd/lib
1487a039	18	ext/ExtUtils-Command/lib
0b9ea86f	19	dist/ExtUtils-Install/lib ext/ExtUtils-MakeMaker/lib
1a7ec96d	20	ext/ExtUtils-Manifest/lib ext/Text-ParseWords/lib
140ca009	21	cpan/File-Path/lib cpan/AutoLoader/lib);
f345288b	22
a193a2db	23	my @ext_dirs = qw(cpan dist ext);
321c3589	24	my $ext_dirs_re = '(?:' . join('\|', @ext_dirs) . ')';
8a992763	25
a0d0e21e	26	# This script acts as a simple interface for building extensions.
286d62c2	27
	28	# It's actually a cut and shut of the Unix version ext/utils/makeext and the
	29	# Windows version win32/build_ext.pl hence the two invocation styles.
	30
	31	# On Unix, it primarily used by the perl Makefile one extention at a time:
a0d0e21e	32	#
a0d0e21e	33	# d_dummy $(dynamic_ext): miniperl preplibrary FORCE
e2fabae1	34	# @$(RUN) ./miniperl make_ext.pl --target=dynamic $@ MAKE=$(MAKE) LIBPERL_A=$(LIBPERL)
a0d0e21e	35	#
902aaf3e	36	# On Windows or VMS,
286d62c2	37	# If '--static' is specified, static extensions will be built.
a34ce875	38	# If '--dynamic' is specified, dynamic extensions will be built.
a34ce875	39	# If '--nonxs' is specified, nonxs extensions will be built.
281da5ea	40	# If '--dynaloader' is specificied, DynaLoader will be built.
286d62c2	41	# If '--all' is specified, all extensions will be built.
	42	#
	43	# make_ext.pl "MAKE=make [-make_opts]" --dir=directory [--target=target] [--static\|--dynamic\|--all] +ext2 !ext1
	44	#
	45	# E.g.
	46	#
	47	# make_ext.pl "MAKE=nmake -nologo" --dir=..\ext
	48	#
	49	# make_ext.pl "MAKE=nmake -nologo" --dir=..\ext --target=clean
	50	#
	51	# make_ext.pl MAKE=dmake --dir=..\ext
	52	#
	53	# make_ext.pl MAKE=dmake --dir=..\ext --target=clean
	54	#
	55	# Will skip building extensions which are marked with an '!' char.
	56	# Mostly because they still not ported to specified platform.
	57	#
	58	# If any extensions are listed with a '+' char then only those
	59	# extensions will be built, but only if they arent countermanded
	60	# by an '!ext' and are appropriate to the type of building being done.
	61
a0d0e21e	62	# It may be deleted in a later release of perl so try to
	63	# avoid using it for other purposes.
	64
e3b84025	65	my $is_Win32 = $^O eq 'MSWin32';
	66	my $is_VMS = $^O eq 'VMS';
	67	my $is_Unix = !$is_Win32 && !$is_VMS;
	68
286d62c2	69	require FindExt if $is_Win32;
286d62c2	70
fc678412	71	my (%excl, %incl, %opts, @extspec, @pass_through);
97a26ad9	72
	73	foreach (@ARGV) {
	74	if (/^!(.*)$/) {
	75	$excl{$1} = 1;
	76	} elsif (/^\+(.*)$/) {
	77	$incl{$1} = 1;
	78	} elsif (/^--([\w\-]+)$/) {
	79	$opts{$1} = 1;
e2fabae1	80	} elsif (/^--([\w\-]+)=(.*)$/) {
7c40aa71	81	push @{$opts{$1}}, $2;
e2fabae1	82	} elsif (/=/) {
fc678412	83	push @pass_through, $_;
ca5de986	84	} elsif (length) {
e2fabae1	85	push @extspec, $_;
97a26ad9	86	}
	87	}
	88
286d62c2	89	my $static = $opts{static} \|\| $opts{all};
286d62c2	90	my $dynamic = $opts{dynamic} \|\| $opts{all};
a34ce875	91	my $nonxs = $opts{nonxs} \|\| $opts{all};
281da5ea	92	my $dynaloader = $opts{dynaloader} \|\| $opts{all};
286d62c2	93
ca5de986	94	# The Perl Makefile.SH will expand all extensions to
	95	# lib/auto/X/X.a (or lib/auto/X/Y/Y.a if nested)
	96	# A user wishing to run make_ext might use
	97	# X (or X/Y or X::Y if nested)
	98
	99	# canonise into X/Y form (pname)
	100
	101	foreach (@extspec) {
7ad017a8	102	if (s{^lib/auto/}{}) {
ca5de986	103	# Remove lib/auto prefix and /. suffix
c5aac6ab	104	s{/[^/]+\.[^/]+$}{};
321c3589	105	} elsif (s{^$ext_dirs_re/}{}) {
ca5de986	106	# Remove ext/ prefix and /pm_to_blib suffix
ca5de986	107	s{/pm_to_blib$}{};
57df1c46	108	# Targets are given as files on disk, but the extension spec is still
	109	# written using /s for each ::
	110	tr!-!/!;
7ad017a8	111	} elsif (s{::}{\/}g) {
ca5de986	112	# Convert :: to /
7ad017a8	113	} else {
ca5de986	114	s/\..*o//;
	115	}
	116	}
	117
fc678412	118	my $makecmd = shift @pass_through; # Should be something like MAKE=make
	119	unshift @pass_through, 'PERL_CORE=1';
	120
9afc198b	121	my @dirs = @{$opts{dir} \|\| \@ext_dirs};
7c40aa71	122	my $target = $opts{target}[0];
07f3cc2a	123	$target = 'all' unless defined $target;
a0d0e21e	124
fb73857a	125	# Previously, $make was taken from config.sh. However, the user might
	126	# instead be running a possibly incompatible make. This might happen if
	127	# the user types "gmake" instead of a plain "make", for example. The
	128	# correct current value of MAKE will come through from the main perl
	129	# makefile as MAKE=/whatever/make in $makecmd. We'll be cautious in
	130	# case third party users of this script (are there any?) don't have the
	131	# MAKE=$(MAKE) argument, which was added after 5.004_03.
ca5de986	132	unless(defined $makecmd and $makecmd =~ /^MAKE=(.*)$/) {
ca5de986	133	die "$0: WARNING: Please include MAKE=\$(MAKE) in \@ARGV\n";
a2f19a19	134	}
a2f19a19	135
eb1f8df7	136	# This isn't going to cope with anything fancy, such as spaces inside command
	137	# names, but neither did what it replaced. Once there is a use case that needs
	138	# it, please supply patches. Until then, I'm sticking to KISS
	139	my @make = split ' ', $1 \|\| $Config{make} \|\| $ENV{MAKE};
ca5de986	140	# Using an array of 0 or 1 elements makes the subsequent code simpler.
fc678412	141	my @run = $Config{run};
fc678412	142	@run = () if not defined $run[0] or $run[0] eq '';
a2f19a19	143
a0d0e21e	144
07f3cc2a	145	if ($target eq '') {
ca5de986	146	die "make_ext: no make target specified (eg all or clean)\n";
	147	} elsif ($target !~ /(?:^all\|clean)$/) {
	148	# for the time being we are strict about what make_ext is used for
	149	die "$0: unknown make target '$target'\n";
a2f19a19	150	}
a2f19a19	151
281da5ea	152	if (!@extspec and !$static and !$dynamic and !$nonxs and !$dynaloader) {
286d62c2	153	die "$0: no extension specified\n";
	154	}
	155
	156	my $perl;
	157	my %extra_passthrough;
	158
	159	if ($is_Win32) {
	160	(my $here = getcwd()) =~ s{/}{\\}g;
	161	$perl = $^X;
	162	if ($perl =~ m#^\.\.#) {
	163	$perl = "$here\\$perl";
	164	}
	165	(my $topdir = $perl) =~ s/\\[^\\]+$//;
	166	# miniperl needs to find perlglob and pl2bat
	167	$ENV{PATH} = "$topdir;$topdir\\win32\\bin;$ENV{PATH}";
	168	my $pl2bat = "$topdir\\win32\\bin\\pl2bat";
	169	unless (-f "$pl2bat.bat") {
d7f84378	170	my @args = ($perl, "-I$topdir\\lib", ("$pl2bat.pl") x 2);
286d62c2	171	print "@args\n";
	172	system(@args) unless defined $::Cross::platform;
	173	}
	174
a2ac9a71	175	my $build = getcwd();
a2ac9a71	176	print "In $build";
7c40aa71	177	foreach my $dir (@dirs) {
a2ac9a71	178	chdir($dir) or die "Cannot cd to $dir: $!\n";
7c40aa71	179	(my $ext = getcwd()) =~ s{/}{\\}g;
	180	FindExt::scan_ext($ext);
	181	FindExt::set_static_extensions(split ' ', $Config{static_ext});
	182
	183	my @ext;
	184	push @ext, FindExt::static_ext() if $static;
	185	push @ext, FindExt::dynamic_ext() if $dynamic;
	186	push @ext, FindExt::nonxs_ext() if $nonxs;
	187	push @ext, 'DynaLoader' if $dynaloader;
	188
	189	foreach (sort @ext) {
	190	if (%incl and !exists $incl{$_}) {
	191	#warn "Skipping extension $ext\\$_, not in inclusion list\n";
	192	next;
	193	}
	194	if (exists $excl{$_}) {
	195	warn "Skipping extension $ext\\$_, not ported to current platform";
	196	next;
	197	}
	198	push @extspec, $_;
	199	if($_ eq 'DynaLoader') {
	200	# No, we don't know why nmake can't work out the dependency chain
	201	push @{$extra_passthrough{$_}}, 'DynaLoader.c';
	202	} elsif(FindExt::is_static($_)) {
	203	push @{$extra_passthrough{$_}}, 'LINKTYPE=static';
	204	}
286d62c2	205	}
a2ac9a71	206	chdir $build
a2ac9a71	207	or die "Couldn't chdir to '$build': $!"; # restore our start directory
286d62c2	208	}
a2ac9a71	209	chdir '..'
a2ac9a71	210	or die "Couldn't chdir to build directory: $!"; # now in the Perl build directory
286d62c2	211	}
902aaf3e	212	elsif ($is_VMS) {
	213	$perl = $^X;
	214	push @extspec, (split ' ', $Config{static_ext}) if $static;
	215	push @extspec, (split ' ', $Config{dynamic_ext}) if $dynamic;
a34ce875	216	push @extspec, (split ' ', $Config{nonxs_ext}) if $nonxs;
281da5ea	217	push @extspec, 'DynaLoader' if $dynaloader;
902aaf3e	218	}
286d62c2	219
dc0655f7	220	{
	221	# Cwd needs to be built before Encode recurses into subdirectories.
	222	# This seems to be the simplest way to ensure this ordering:
	223	my (@first, @other);
	224	foreach (@extspec) {
	225	if ($_ eq 'Cwd') {
	226	push @first, $_;
	227	} else {
	228	push @other, $_;
	229	}
	230	}
	231	@extspec = (@first, @other);
	232	}
	233
e08c66ce	234	foreach my $spec (@extspec) {
e08c66ce	235	my $mname = $spec;
ca5de986	236	$mname =~ s!/!::!g;
238a6851	237	my $ext_pathname;
914d9b2e	238	if (-d "ext/$spec"
	239	# Temporary hack to cope with smokers that are not clearing directories:
	240	&& $spec =~ m!/!
	241	) {
238a6851	242	# Old style ext/Data/Dumper/
	243	$ext_pathname = "ext/$spec";
	244	} else {
	245	# New style ext/Data-Dumper/
	246	my $copy = $spec;
	247	$copy =~ tr!/!-!;
8a992763	248	foreach my $dir (@ext_dirs) {
	249	if (-d "$dir/$copy") {
	250	$ext_pathname = "$dir/$copy";
	251	last;
	252	}
	253	}
	254	if (!defined $ext_pathname) {
	255	warn "Can't find extension $spec in any of @ext_dirs";
	256	next;
	257	}
238a6851	258	}
a2f19a19	259
ca5de986	260	if ($Config{osname} eq 'catamount') {
a2f19a19	261	# Snowball's chance of building extensions.
ca5de986	262	die "This is $Config{osname}, not building $mname, sorry.\n";
ca5de986	263	}
a2f19a19	264
ca5de986	265	print "\tMaking $mname ($target)\n";
a2f19a19	266
acb65a20	267	build_extension($ext_pathname, $perl, $mname,
e08c66ce	268	[@pass_through, @{$extra_passthrough{$spec} \|\| []}]);
ca5de986	269	}
a0d0e21e	270
fc678412	271	sub build_extension {
acb65a20	272	my ($ext_dir, $perl, $mname, $pass_through) = @_;
	273
	274	my $up = $ext_dir;
	275	$up =~ s![^/]+!..!g;
	276
	277	$perl \|\|= "$up/miniperl";
	278	my $return_dir = $up;
	279	my $lib_dir = "$up/lib";
bc72ff49	280	# $lib_dir must be last, as we're copying files into it, and in a parallel
	281	# make there's a race condition if one process tries to open a module that
	282	# another process has half-written.
f345288b	283	$ENV{PERL5LIB}
bc72ff49	284	= join $Config{path_sep}, (map {"$up/$_"} @toolchain), $lib_dir;
6c8b0117	285	$ENV{PERL_CORE} = 1;
acb65a20	286
fc678412	287	unless (chdir "$ext_dir") {
	288	warn "Cannot cd to $ext_dir: $!";
	289	return;
	290	}
902aaf3e	291	my $makefile;
	292	if ($is_VMS) {
	293	$makefile = 'descrip.mms';
	294	if ($target =~ /clean$/
	295	&& !-f $makefile
	296	&& -f "${makefile}_old") {
	297	$makefile = "${makefile}_old";
	298	}
	299	} else {
	300	$makefile = 'Makefile';
	301	}
fc678412	302
902aaf3e	303	if (!-f $makefile) {
e74f76b2	304	if (!-f 'Makefile.PL') {
	305	print "\nCreating Makefile.PL in $ext_dir for $mname\n";
	306	# We need to cope well with various possible layouts
	307	my @dirs = split /::/, $mname;
	308	my $leaf = pop @dirs;
	309	my $leafname = "$leaf.pm";
	310	my $pathname = join '/', @dirs, $leafname;
	311	my @locations = ($leafname, $pathname, "lib/$pathname");
	312	my $fromname;
	313	foreach (@locations) {
	314	if (-f $_) {
	315	$fromname = $_;
	316	last;
	317	}
	318	}
	319
	320	unless ($fromname) {
	321	die "For $mname tried @locations in in $ext_dir but can't find source";
	322	}
ffff3758	323	my $pod_name;
	324	($pod_name = $fromname) =~ s/\.pm\z/.pod/;
	325	$pod_name = $fromname unless -e $pod_name;
e74f76b2	326	open my $fh, '>', 'Makefile.PL'
	327	or die "Can't open Makefile.PL for writing: $!";
	328	print $fh <<"EOM";
	329	#-- buffer-read-only: t --
	330
	331	# This Makefile.PL was written by $0.
	332	# It will be deleted automatically by make realclean
	333
	334	use strict;
	335	use ExtUtils::MakeMaker;
	336
	337	WriteMakefile(
	338	NAME => '$mname',
	339	VERSION_FROM => '$fromname',
ffff3758	340	ABSTRACT_FROM => '$pod_name',
e74f76b2	341	realclean => {FILES => 'Makefile.PL'},
	342	);
	343
	344	# ex: set ro:
	345	EOM
	346	close $fh or die "Can't close Makefile.PL: $!";
	347	}
fc678412	348	print "\nRunning Makefile.PL in $ext_dir\n";
	349
	350	# Presumably this can be simplified
	351	my @cross;
	352	if (defined $::Cross::platform) {
	353	# Inherited from win32/buildext.pl
	354	@cross = "-MCross=$::Cross::platform";
	355	} elsif ($opts{cross}) {
	356	# Inherited from make_ext.pl
	357	@cross = '-MCross';
a2f19a19	358	}
fc678412	359
73402eba	360	my @args = (@cross, 'Makefile.PL');
902aaf3e	361	if ($is_VMS) {
	362	my $libd = VMS::Filespec::vmspath($lib_dir);
	363	push @args, "INST_LIB=$libd", "INST_ARCHLIB=$libd";
	364	} else {
a2b175af	365	push @args, 'INSTALLDIRS=perl', 'INSTALLMAN1DIR=none',
a2b175af	366	'INSTALLMAN3DIR=none';
902aaf3e	367	}
	368	push @args, @$pass_through;
	369	_quote_args(\@args) if $is_VMS;
	370	print join(' ', @run, $perl, @args), "\n";
	371	my $code = system @run, $perl, @args;
fc678412	372	warn "$code from $ext_dir\'s Makefile.PL" if $code;
fc678412	373
61edc683	374	# Right. The reason for this little hack is that we're sitting inside
	375	# a program run by ./miniperl, but there are tasks we need to perform
	376	# when the 'realclean', 'distclean' or 'veryclean' targets are run.
	377	# Unfortunately, they can be run after 'clean', which deletes
	378	# ./miniperl
	379	# So we do our best to leave a set of instructions identical to what
	380	# we would do if we are run directly as 'realclean' etc
	381	# Whilst we're perfect, unfortunately the targets we call are not, as
	382	# some of them rely on a $(PERL) for their own distclean targets.
	383	# But this always used to be a problem with the old /bin/sh version of
	384	# this.
e3b84025	385	if ($is_Unix) {
fc678412	386	my $suffix = '.sh';
fc678412	387	foreach my $clean_target ('realclean', 'veryclean') {
ca5de986	388	my $file = "$return_dir/$clean_target$suffix";
fc678412	389	open my $fh, '>>', $file or die "open $file: $!";
	390	# Quite possible that we're being run in parallel here.
	391	# Can't use Fcntl this early to get the LOCK_EX
	392	flock $fh, 2 or warn "flock $file: $!";
	393	print $fh <<"EOS";
	394	cd $ext_dir
	395	if test ! -f Makefile -a -f Makefile.old; then
61edc683	396	echo "Note: Using Makefile.old"
eb1f8df7	397	make -f Makefile.old $clean_target MAKE='@make' @pass_through
61edc683	398	else
fc678412	399	if test ! -f Makefile ; then
61edc683	400	echo "Warning: No Makefile!"
61edc683	401	fi
eb1f8df7	402	make $clean_target MAKE='@make' @pass_through
61edc683	403	fi
fc678412	404	cd $return_dir
61edc683	405	EOS
fc678412	406	close $fh or die "close $file: $!";
fc678412	407	}
61edc683	408	}
fc678412	409	}
a2f19a19	410
902aaf3e	411	if (not -f $makefile) {
a2f19a19	412	print "Warning: No Makefile!\n";
fc678412	413	}
a2f19a19	414
902aaf3e	415	if ($is_VMS) {
	416	_macroify_passthrough($pass_through);
	417	unshift @$pass_through, "/DESCRIPTION=$makefile";
	418	}
	419
fc678412	420	if (!$target or $target !~ /clean$/) {
a2f19a19	421	# Give makefile an opportunity to rewrite itself.
75f92628	422	# reassure users that life goes on...
902aaf3e	423	my @args = ('config', @$pass_through);
	424	_quote_args(\@args) if $is_VMS;
	425	system(@run, @make, @args) and print "@run @make @args failed, continuing anyway...\n";
fc678412	426	}
902aaf3e	427	my @targ = ($target, @$pass_through);
	428	_quote_args(\@targ) if $is_VMS;
	429	print "Making $target in $ext_dir\n@run @make @targ\n";
	430	my $code = system(@run, @make, @targ);
fc678412	431	die "Unsuccessful make($ext_dir): code=$code" if $code != 0;
a2f19a19	432
fc678412	433	chdir $return_dir \|\| die "Cannot cd to $return_dir: $!";
fc678412	434	}
902aaf3e	435
	436	sub _quote_args {
	437	my $args = shift; # must be array reference
	438
	439	# Do not quote qualifiers that begin with '/'.
	440	map { if (!/^\//) {
	441	$_ =~ s/\"/""/g; # escape C<"> by doubling
	442	$_ = q(").$_.q(");
	443	}
	444	} @{$args}
	445	;
	446	}
	447
	448	sub _macroify_passthrough {
	449	my $passthrough = shift;
	450	_quote_args($passthrough);
	451	my $macro = '/MACRO=(' . join(',',@$passthrough) . ')';
	452	@$passthrough = ();
	453	@$passthrough[0] = $macro;
	454	}