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#!./miniperl
use strict;
use warnings;
use Config;
use Cwd;
# 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 (and nonxs) extensions 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{$1} = 1;
} elsif (/^--([\w\-]+)=(.*)$/) {
$opts{$1} = $2;
} elsif (/=/) {
push @pass_through, $_;
} elsif (length) {
push @extspec, $_;
}
}
my $static = $opts{static} || $opts{all};
my $dynamic = $opts{dynamic} || $opts{all};
# The Perl Makefile.SH will expand all extensions to
# lib/auto/X/X.a (or lib/auto/X/Y/Y.a if nested)
# A user wishing to run make_ext might use
# X (or X/Y or X::Y if nested)
# canonise into X/Y form (pname)
foreach (@extspec) {
if (s{^lib/auto/}{}) {
# Remove lib/auto prefix and /*.* suffix
s{/[^/]+\.[^/]+$}{};
} 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 $dir = $opts{dir} || 'ext';
my $target = $opts{target};
$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) {
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, ("$pl2bat.pl") x 2);
print "@args\n";
system(@args) unless defined $::Cross::platform;
}
print "In ", getcwd();
chdir($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(), FindExt::nonxs_ext() if $dynamic;
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, $_;
if(FindExt::is_static($_)) {
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;
}
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";
} elsif ($is_VMS and -d "vms/ext/" . substr($spec, 4)) {
# We could get rid of this by moving everything from
# [.vms.ext...] to [.ext.VMS...]
$ext_pathname = "vms/ext/" . substr($spec, 4);
} else {
# New style ext/Data-Dumper/
my $copy = $spec;
$copy =~ tr!/!-!;
$ext_pathname = "ext/$copy";
}
my $up = $ext_pathname;
$up =~ s![^/]+!..!g;
if ($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', $ext_pathname, $up, $perl || "$up/miniperl",
"$up/lib", $mname,
[@pass_through, @{$extra_passthrough{$spec} || []}]);
}
sub build_extension {
my ($ext, $ext_dir, $return_dir, $perl, $lib_dir, $mname, $pass_through)
= @_;
unless (chdir "$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 ($opts{cross}) {
# Inherited from make_ext.pl
@cross = '-MCross';
}
my @args = ("-I$lib_dir", @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;
}
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