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

#!./miniperl
use strict;
use warnings;
use Config;
BEGIN {
    unshift @INC, $^O eq 'MSWin32' ? '../ext/Cwd' : 'ext/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 ext/Cwd ext/Cwd/lib ext/ExtUtils-Command/lib
		   ext/ExtUtils-Install/lib ext/ExtUtils-MakeMaker/lib
		   ext/ExtUtils-Manifest/lib ext/Text-ParseWords/lib
       ext/File-Path/lib ext/AutoLoader/lib);

my @ext_dirs = qw(ext cpan);

# 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{/[^/]+\.[^/]+$}{};
    } elsif (s{^ext/}{}) {
	# Remove ext/ prefix and /pm_to_blib suffix
	s{/pm_to_blib$}{};
	# 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', 'cpan'];
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;
    }

    print "In ", getcwd();
    foreach my $dir (@dirs) {
	chdir($dir) || 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{$_}}, 'LINKTYPE=static';
	    }
	}
	chdir '..'; # now in the Perl build directory
    }
}
elsif ($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") {
	# 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";
	    }
	    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 => '$fromname',
    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 {
9ddff148	6	unshift @INC, $^O eq 'MSWin32' ? '../ext/Cwd' : 'ext/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
83f40c94	17	my @toolchain = qw(ext/constant/lib ext/Cwd ext/Cwd/lib ext/ExtUtils-Command/lib
b78fd716	18	ext/ExtUtils-Install/lib ext/ExtUtils-MakeMaker/lib
1a7ec96d	19	ext/ExtUtils-Manifest/lib ext/Text-ParseWords/lib
4677aef7	20	ext/File-Path/lib ext/AutoLoader/lib);
f345288b	21
8a992763	22	my @ext_dirs = qw(ext cpan);
8a992763	23
a0d0e21e	24	# This script acts as a simple interface for building extensions.
286d62c2	25
	26	# It's actually a cut and shut of the Unix version ext/utils/makeext and the
	27	# Windows version win32/build_ext.pl hence the two invocation styles.
	28
	29	# On Unix, it primarily used by the perl Makefile one extention at a time:
a0d0e21e	30	#
a0d0e21e	31	# d_dummy $(dynamic_ext): miniperl preplibrary FORCE
e2fabae1	32	# @$(RUN) ./miniperl make_ext.pl --target=dynamic $@ MAKE=$(MAKE) LIBPERL_A=$(LIBPERL)
a0d0e21e	33	#
902aaf3e	34	# On Windows or VMS,
286d62c2	35	# If '--static' is specified, static extensions will be built.
a34ce875	36	# If '--dynamic' is specified, dynamic extensions will be built.
a34ce875	37	# If '--nonxs' is specified, nonxs extensions will be built.
281da5ea	38	# If '--dynaloader' is specificied, DynaLoader will be built.
286d62c2	39	# If '--all' is specified, all extensions will be built.
	40	#
	41	# make_ext.pl "MAKE=make [-make_opts]" --dir=directory [--target=target] [--static\|--dynamic\|--all] +ext2 !ext1
	42	#
	43	# E.g.
	44	#
	45	# make_ext.pl "MAKE=nmake -nologo" --dir=..\ext
	46	#
	47	# make_ext.pl "MAKE=nmake -nologo" --dir=..\ext --target=clean
	48	#
	49	# make_ext.pl MAKE=dmake --dir=..\ext
	50	#
	51	# make_ext.pl MAKE=dmake --dir=..\ext --target=clean
	52	#
	53	# Will skip building extensions which are marked with an '!' char.
	54	# Mostly because they still not ported to specified platform.
	55	#
	56	# If any extensions are listed with a '+' char then only those
	57	# extensions will be built, but only if they arent countermanded
	58	# by an '!ext' and are appropriate to the type of building being done.
	59
a0d0e21e	60	# It may be deleted in a later release of perl so try to
	61	# avoid using it for other purposes.
	62
e3b84025	63	my $is_Win32 = $^O eq 'MSWin32';
	64	my $is_VMS = $^O eq 'VMS';
	65	my $is_Unix = !$is_Win32 && !$is_VMS;
	66
286d62c2	67	require FindExt if $is_Win32;
286d62c2	68
fc678412	69	my (%excl, %incl, %opts, @extspec, @pass_through);
97a26ad9	70
	71	foreach (@ARGV) {
	72	if (/^!(.*)$/) {
	73	$excl{$1} = 1;
	74	} elsif (/^\+(.*)$/) {
	75	$incl{$1} = 1;
	76	} elsif (/^--([\w\-]+)$/) {
	77	$opts{$1} = 1;
e2fabae1	78	} elsif (/^--([\w\-]+)=(.*)$/) {
7c40aa71	79	push @{$opts{$1}}, $2;
e2fabae1	80	} elsif (/=/) {
fc678412	81	push @pass_through, $_;
ca5de986	82	} elsif (length) {
e2fabae1	83	push @extspec, $_;
97a26ad9	84	}
	85	}
	86
286d62c2	87	my $static = $opts{static} \|\| $opts{all};
286d62c2	88	my $dynamic = $opts{dynamic} \|\| $opts{all};
a34ce875	89	my $nonxs = $opts{nonxs} \|\| $opts{all};
281da5ea	90	my $dynaloader = $opts{dynaloader} \|\| $opts{all};
286d62c2	91
ca5de986	92	# The Perl Makefile.SH will expand all extensions to
	93	# lib/auto/X/X.a (or lib/auto/X/Y/Y.a if nested)
	94	# A user wishing to run make_ext might use
	95	# X (or X/Y or X::Y if nested)
	96
	97	# canonise into X/Y form (pname)
	98
	99	foreach (@extspec) {
7ad017a8	100	if (s{^lib/auto/}{}) {
ca5de986	101	# Remove lib/auto prefix and /. suffix
c5aac6ab	102	s{/[^/]+\.[^/]+$}{};
7ad017a8	103	} elsif (s{^ext/}{}) {
ca5de986	104	# Remove ext/ prefix and /pm_to_blib suffix
ca5de986	105	s{/pm_to_blib$}{};
57df1c46	106	# Targets are given as files on disk, but the extension spec is still
	107	# written using /s for each ::
	108	tr!-!/!;
7ad017a8	109	} elsif (s{::}{\/}g) {
ca5de986	110	# Convert :: to /
7ad017a8	111	} else {
ca5de986	112	s/\..*o//;
	113	}
	114	}
	115
fc678412	116	my $makecmd = shift @pass_through; # Should be something like MAKE=make
	117	unshift @pass_through, 'PERL_CORE=1';
	118
7c40aa71	119	my @dirs = $opts{dir} \|\| ['ext', 'cpan'];
7c40aa71	120	my $target = $opts{target}[0];
07f3cc2a	121	$target = 'all' unless defined $target;
a0d0e21e	122
fb73857a	123	# Previously, $make was taken from config.sh. However, the user might
	124	# instead be running a possibly incompatible make. This might happen if
	125	# the user types "gmake" instead of a plain "make", for example. The
	126	# correct current value of MAKE will come through from the main perl
	127	# makefile as MAKE=/whatever/make in $makecmd. We'll be cautious in
	128	# case third party users of this script (are there any?) don't have the
	129	# MAKE=$(MAKE) argument, which was added after 5.004_03.
ca5de986	130	unless(defined $makecmd and $makecmd =~ /^MAKE=(.*)$/) {
ca5de986	131	die "$0: WARNING: Please include MAKE=\$(MAKE) in \@ARGV\n";
a2f19a19	132	}
a2f19a19	133
eb1f8df7	134	# This isn't going to cope with anything fancy, such as spaces inside command
	135	# names, but neither did what it replaced. Once there is a use case that needs
	136	# it, please supply patches. Until then, I'm sticking to KISS
	137	my @make = split ' ', $1 \|\| $Config{make} \|\| $ENV{MAKE};
ca5de986	138	# Using an array of 0 or 1 elements makes the subsequent code simpler.
fc678412	139	my @run = $Config{run};
fc678412	140	@run = () if not defined $run[0] or $run[0] eq '';
a2f19a19	141
a0d0e21e	142
07f3cc2a	143	if ($target eq '') {
ca5de986	144	die "make_ext: no make target specified (eg all or clean)\n";
	145	} elsif ($target !~ /(?:^all\|clean)$/) {
	146	# for the time being we are strict about what make_ext is used for
	147	die "$0: unknown make target '$target'\n";
a2f19a19	148	}
a2f19a19	149
281da5ea	150	if (!@extspec and !$static and !$dynamic and !$nonxs and !$dynaloader) {
286d62c2	151	die "$0: no extension specified\n";
	152	}
	153
	154	my $perl;
	155	my %extra_passthrough;
	156
	157	if ($is_Win32) {
	158	(my $here = getcwd()) =~ s{/}{\\}g;
	159	$perl = $^X;
	160	if ($perl =~ m#^\.\.#) {
	161	$perl = "$here\\$perl";
	162	}
	163	(my $topdir = $perl) =~ s/\\[^\\]+$//;
	164	# miniperl needs to find perlglob and pl2bat
	165	$ENV{PATH} = "$topdir;$topdir\\win32\\bin;$ENV{PATH}";
	166	my $pl2bat = "$topdir\\win32\\bin\\pl2bat";
	167	unless (-f "$pl2bat.bat") {
d7f84378	168	my @args = ($perl, "-I$topdir\\lib", ("$pl2bat.pl") x 2);
286d62c2	169	print "@args\n";
	170	system(@args) unless defined $::Cross::platform;
	171	}
	172
	173	print "In ", getcwd();
7c40aa71	174	foreach my $dir (@dirs) {
	175	chdir($dir) \|\| die "Cannot cd to $dir\n";
	176	(my $ext = getcwd()) =~ s{/}{\\}g;
	177	FindExt::scan_ext($ext);
	178	FindExt::set_static_extensions(split ' ', $Config{static_ext});
	179
	180	my @ext;
	181	push @ext, FindExt::static_ext() if $static;
	182	push @ext, FindExt::dynamic_ext() if $dynamic;
	183	push @ext, FindExt::nonxs_ext() if $nonxs;
	184	push @ext, 'DynaLoader' if $dynaloader;
	185
	186	foreach (sort @ext) {
	187	if (%incl and !exists $incl{$_}) {
	188	#warn "Skipping extension $ext\\$_, not in inclusion list\n";
	189	next;
	190	}
	191	if (exists $excl{$_}) {
	192	warn "Skipping extension $ext\\$_, not ported to current platform";
	193	next;
	194	}
	195	push @extspec, $_;
	196	if($_ eq 'DynaLoader') {
	197	# No, we don't know why nmake can't work out the dependency chain
	198	push @{$extra_passthrough{$_}}, 'DynaLoader.c';
	199	} elsif(FindExt::is_static($_)) {
	200	push @{$extra_passthrough{$_}}, 'LINKTYPE=static';
	201	}
286d62c2	202	}
7c40aa71	203	chdir '..'; # now in the Perl build directory
286d62c2	204	}
286d62c2	205	}
902aaf3e	206	elsif ($is_VMS) {
	207	$perl = $^X;
	208	push @extspec, (split ' ', $Config{static_ext}) if $static;
	209	push @extspec, (split ' ', $Config{dynamic_ext}) if $dynamic;
a34ce875	210	push @extspec, (split ' ', $Config{nonxs_ext}) if $nonxs;
281da5ea	211	push @extspec, 'DynaLoader' if $dynaloader;
902aaf3e	212	}
286d62c2	213
dc0655f7	214	{
	215	# Cwd needs to be built before Encode recurses into subdirectories.
	216	# This seems to be the simplest way to ensure this ordering:
	217	my (@first, @other);
	218	foreach (@extspec) {
	219	if ($_ eq 'Cwd') {
	220	push @first, $_;
	221	} else {
	222	push @other, $_;
	223	}
	224	}
	225	@extspec = (@first, @other);
	226	}
	227
e08c66ce	228	foreach my $spec (@extspec) {
e08c66ce	229	my $mname = $spec;
ca5de986	230	$mname =~ s!/!::!g;
238a6851	231	my $ext_pathname;
	232	if (-d "ext/$spec") {
	233	# Old style ext/Data/Dumper/
	234	$ext_pathname = "ext/$spec";
	235	} else {
	236	# New style ext/Data-Dumper/
	237	my $copy = $spec;
	238	$copy =~ tr!/!-!;
8a992763	239	foreach my $dir (@ext_dirs) {
	240	if (-d "$dir/$copy") {
	241	$ext_pathname = "$dir/$copy";
	242	last;
	243	}
	244	}
	245	if (!defined $ext_pathname) {
	246	warn "Can't find extension $spec in any of @ext_dirs";
	247	next;
	248	}
238a6851	249	}
a2f19a19	250
ca5de986	251	if ($Config{osname} eq 'catamount') {
a2f19a19	252	# Snowball's chance of building extensions.
ca5de986	253	die "This is $Config{osname}, not building $mname, sorry.\n";
ca5de986	254	}
a2f19a19	255
ca5de986	256	print "\tMaking $mname ($target)\n";
a2f19a19	257
acb65a20	258	build_extension($ext_pathname, $perl, $mname,
e08c66ce	259	[@pass_through, @{$extra_passthrough{$spec} \|\| []}]);
ca5de986	260	}
a0d0e21e	261
fc678412	262	sub build_extension {
acb65a20	263	my ($ext_dir, $perl, $mname, $pass_through) = @_;
	264
	265	my $up = $ext_dir;
	266	$up =~ s![^/]+!..!g;
	267
	268	$perl \|\|= "$up/miniperl";
	269	my $return_dir = $up;
	270	my $lib_dir = "$up/lib";
bc72ff49	271	# $lib_dir must be last, as we're copying files into it, and in a parallel
	272	# make there's a race condition if one process tries to open a module that
	273	# another process has half-written.
f345288b	274	$ENV{PERL5LIB}
bc72ff49	275	= join $Config{path_sep}, (map {"$up/$_"} @toolchain), $lib_dir;
6c8b0117	276	$ENV{PERL_CORE} = 1;
acb65a20	277
fc678412	278	unless (chdir "$ext_dir") {
	279	warn "Cannot cd to $ext_dir: $!";
	280	return;
	281	}
902aaf3e	282	my $makefile;
	283	if ($is_VMS) {
	284	$makefile = 'descrip.mms';
	285	if ($target =~ /clean$/
	286	&& !-f $makefile
	287	&& -f "${makefile}_old") {
	288	$makefile = "${makefile}_old";
	289	}
	290	} else {
	291	$makefile = 'Makefile';
	292	}
fc678412	293
902aaf3e	294	if (!-f $makefile) {
e74f76b2	295	if (!-f 'Makefile.PL') {
	296	print "\nCreating Makefile.PL in $ext_dir for $mname\n";
	297	# We need to cope well with various possible layouts
	298	my @dirs = split /::/, $mname;
	299	my $leaf = pop @dirs;
	300	my $leafname = "$leaf.pm";
	301	my $pathname = join '/', @dirs, $leafname;
	302	my @locations = ($leafname, $pathname, "lib/$pathname");
	303	my $fromname;
	304	foreach (@locations) {
	305	if (-f $_) {
	306	$fromname = $_;
	307	last;
	308	}
	309	}
	310
	311	unless ($fromname) {
	312	die "For $mname tried @locations in in $ext_dir but can't find source";
	313	}
	314	open my $fh, '>', 'Makefile.PL'
	315	or die "Can't open Makefile.PL for writing: $!";
	316	print $fh <<"EOM";
	317	#-- buffer-read-only: t --
	318
	319	# This Makefile.PL was written by $0.
	320	# It will be deleted automatically by make realclean
	321
	322	use strict;
	323	use ExtUtils::MakeMaker;
	324
	325	WriteMakefile(
	326	NAME => '$mname',
	327	VERSION_FROM => '$fromname',
	328	ABSTRACT_FROM => '$fromname',
	329	realclean => {FILES => 'Makefile.PL'},
	330	);
	331
	332	# ex: set ro:
	333	EOM
	334	close $fh or die "Can't close Makefile.PL: $!";
	335	}
fc678412	336	print "\nRunning Makefile.PL in $ext_dir\n";
	337
	338	# Presumably this can be simplified
	339	my @cross;
	340	if (defined $::Cross::platform) {
	341	# Inherited from win32/buildext.pl
	342	@cross = "-MCross=$::Cross::platform";
	343	} elsif ($opts{cross}) {
	344	# Inherited from make_ext.pl
	345	@cross = '-MCross';
a2f19a19	346	}
fc678412	347
73402eba	348	my @args = (@cross, 'Makefile.PL');
902aaf3e	349	if ($is_VMS) {
	350	my $libd = VMS::Filespec::vmspath($lib_dir);
	351	push @args, "INST_LIB=$libd", "INST_ARCHLIB=$libd";
	352	} else {
a2b175af	353	push @args, 'INSTALLDIRS=perl', 'INSTALLMAN1DIR=none',
a2b175af	354	'INSTALLMAN3DIR=none';
902aaf3e	355	}
	356	push @args, @$pass_through;
	357	_quote_args(\@args) if $is_VMS;
	358	print join(' ', @run, $perl, @args), "\n";
	359	my $code = system @run, $perl, @args;
fc678412	360	warn "$code from $ext_dir\'s Makefile.PL" if $code;
fc678412	361
61edc683	362	# Right. The reason for this little hack is that we're sitting inside
	363	# a program run by ./miniperl, but there are tasks we need to perform
	364	# when the 'realclean', 'distclean' or 'veryclean' targets are run.
	365	# Unfortunately, they can be run after 'clean', which deletes
	366	# ./miniperl
	367	# So we do our best to leave a set of instructions identical to what
	368	# we would do if we are run directly as 'realclean' etc
	369	# Whilst we're perfect, unfortunately the targets we call are not, as
	370	# some of them rely on a $(PERL) for their own distclean targets.
	371	# But this always used to be a problem with the old /bin/sh version of
	372	# this.
e3b84025	373	if ($is_Unix) {
fc678412	374	my $suffix = '.sh';
fc678412	375	foreach my $clean_target ('realclean', 'veryclean') {
ca5de986	376	my $file = "$return_dir/$clean_target$suffix";
fc678412	377	open my $fh, '>>', $file or die "open $file: $!";
	378	# Quite possible that we're being run in parallel here.
	379	# Can't use Fcntl this early to get the LOCK_EX
	380	flock $fh, 2 or warn "flock $file: $!";
	381	print $fh <<"EOS";
	382	cd $ext_dir
	383	if test ! -f Makefile -a -f Makefile.old; then
61edc683	384	echo "Note: Using Makefile.old"
eb1f8df7	385	make -f Makefile.old $clean_target MAKE='@make' @pass_through
61edc683	386	else
fc678412	387	if test ! -f Makefile ; then
61edc683	388	echo "Warning: No Makefile!"
61edc683	389	fi
eb1f8df7	390	make $clean_target MAKE='@make' @pass_through
61edc683	391	fi
fc678412	392	cd $return_dir
61edc683	393	EOS
fc678412	394	close $fh or die "close $file: $!";
fc678412	395	}
61edc683	396	}
fc678412	397	}
a2f19a19	398
902aaf3e	399	if (not -f $makefile) {
a2f19a19	400	print "Warning: No Makefile!\n";
fc678412	401	}
a2f19a19	402
902aaf3e	403	if ($is_VMS) {
	404	_macroify_passthrough($pass_through);
	405	unshift @$pass_through, "/DESCRIPTION=$makefile";
	406	}
	407
fc678412	408	if (!$target or $target !~ /clean$/) {
a2f19a19	409	# Give makefile an opportunity to rewrite itself.
75f92628	410	# reassure users that life goes on...
902aaf3e	411	my @args = ('config', @$pass_through);
	412	_quote_args(\@args) if $is_VMS;
	413	system(@run, @make, @args) and print "@run @make @args failed, continuing anyway...\n";
fc678412	414	}
902aaf3e	415	my @targ = ($target, @$pass_through);
	416	_quote_args(\@targ) if $is_VMS;
	417	print "Making $target in $ext_dir\n@run @make @targ\n";
	418	my $code = system(@run, @make, @targ);
fc678412	419	die "Unsuccessful make($ext_dir): code=$code" if $code != 0;
a2f19a19	420
fc678412	421	chdir $return_dir \|\| die "Cannot cd to $return_dir: $!";
fc678412	422	}
902aaf3e	423
	424	sub _quote_args {
	425	my $args = shift; # must be array reference
	426
	427	# Do not quote qualifiers that begin with '/'.
	428	map { if (!/^\//) {
	429	$_ =~ s/\"/""/g; # escape C<"> by doubling
	430	$_ = q(").$_.q(");
	431	}
	432	} @{$args}
	433	;
	434	}
	435
	436	sub _macroify_passthrough {
	437	my $passthrough = shift;
	438	_quote_args($passthrough);
	439	my $macro = '/MACRO=(' . join(',',@$passthrough) . ')';
	440	@$passthrough = ();
	441	@$passthrough[0] = $macro;
	442	}