use strict;
use warnings;
use Config;
-use Cwd;
+use constant{IS_CROSS => defined $Config::Config{usecrosscompile} ? 1 : 0,
+ IS_WIN32 => $^O eq 'MSWin32',
+ IS_VMS => $^O eq 'VMS',
+ IS_UNIX => $^O ne 'MSWin32' && $^O ne 'VMS',
+};
-# 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/ExtUtils-Command/lib
- ext/ExtUtils-Install/lib ext/ExtUtils-MakeMaker/lib
- ext/ExtUtils-Manifest/lib ext/Text-ParseWords/lib
- ext/File-Path/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:
+# On Unix, it primarily used by the perl Makefile one extension at a time:
#
# d_dummy $(dynamic_ext): miniperl preplibrary FORCE
# @$(RUN) ./miniperl make_ext.pl --target=dynamic $@ MAKE=$(MAKE) LIBPERL_A=$(LIBPERL)
# 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 specified, 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
# 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
+# extensions will be built, but only if they aren't countermanded
# by an '!ext' and are appropriate to the type of building being done.
+# An extensions follows the format of Foo/Bar, which would be extension Foo::Bar
# 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);
+my (%excl, %incl, %opts, @extspec, @pass_through, $verbose);
foreach (@ARGV) {
if (/^!(.*)$/) {
$excl{$1} = 1;
} elsif (/^\+(.*)$/) {
$incl{$1} = 1;
+ } elsif (/^--verbose$/ or /^-v$/) {
+ $verbose = 1;
} elsif (/^--([\w\-]+)$/) {
$opts{$1} = 1;
} elsif (/^--([\w\-]+)=(.*)$/) {
- $opts{$1} = $2;
+ push @{$opts{$1}}, $2;
} elsif (/=/) {
push @pass_through, $_;
} elsif (length) {
my $static = $opts{static} || $opts{all};
my $dynamic = $opts{dynamic} || $opts{all};
my $nonxs = $opts{nonxs} || $opts{all};
+my $dynaloader = $opts{dynaloader} || $opts{all};
# The Perl Makefile.SH will expand all extensions to
# lib/auto/X/X.a (or lib/auto/X/Y/Y.a if nested)
if (s{^lib/auto/}{}) {
# Remove lib/auto prefix and /*.* suffix
s{/[^/]+\.[^/]+$}{};
- } elsif (s{^ext/}{}) {
+ } 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
my $makecmd = shift @pass_through; # Should be something like MAKE=make
unshift @pass_through, 'PERL_CORE=1';
-my $dir = $opts{dir} || 'ext';
-my $target = $opts{target};
+my @dirs = @{$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
# 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
+} elsif ($target !~ /^(?:all|clean|distclean|realclean|veryclean)$/) {
+ # we are strict about what make_ext is used for because we emulate these
+ # targets for simple modules:
die "$0: unknown make target '$target'\n";
}
-if (!@extspec and !$static and !$dynamic and !$nonxs) {
+if (!@extspec and !$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;
+if (IS_WIN32) {
+ require Cwd;
+ require FindExt;
+ my $build = Cwd::getcwd();
$perl = $^X;
if ($perl =~ m#^\.\.#) {
+ my $here = $build;
+ $here =~ s{/}{\\}g;
$perl = "$here\\$perl";
}
(my $topdir = $perl) =~ s/\\[^\\]+$//;
$ENV{PATH} = "$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 $::Cross::platform;
+ my @args = ($perl, "-I$topdir\\lib", ("$pl2bat.pl") x 2);
+ print "@args\n" if $verbose;
+ system(@args) unless IS_CROSS;
}
- print "In ", getcwd();
- chdir($dir) || die "Cannot cd to $dir\n";
- (my $ext = getcwd()) =~ s{/}{\\}g;
- FindExt::scan_ext($ext);
- FindExt::set_static_extensions(split ' ', $Config{static_ext});
+ print "In $build" if $verbose;
+ foreach my $dir (@dirs) {
+ chdir($dir) or die "Cannot cd to $dir: $!\n";
+ (my $ext = Cwd::getcwd()) =~ s{/}{\\}g;
+ FindExt::scan_ext($ext);
+ FindExt::set_static_extensions(split ' ', $Config{static_ext});
+ chdir $build
+ or die "Couldn't chdir to '$build': $!"; # restore our start directory
+ }
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";
+ #warn "Skipping extension $_, not in inclusion list\n";
next;
}
if (exists $excl{$_}) {
- warn "Skipping extension $ext\\$_, not ported to current platform";
+ warn "Skipping extension $_, not ported to current platform";
next;
}
push @extspec, $_;
- if(FindExt::is_static($_)) {
+ if($_ ne 'DynaLoader' && FindExt::is_static($_)) {
push @{$extra_passthrough{$_}}, 'LINKTYPE=static';
}
}
- chdir '..'; # now in the Perl build directory
+
+ chdir '..'
+ or die "Couldn't chdir to build directory: $!"; # now in the Perl build
}
-elsif ($is_VMS) {
+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 $dynaloader;
+}
+
+{
+ # Cwd needs to be built before Encode recurses into subdirectories.
+ # Pod::Simple needs to be built before Pod::Functions
+ # This seems to be the simplest way to ensure this ordering:
+ my (@first, @other);
+ foreach (@extspec) {
+ if ($_ eq 'Cwd' || $_ eq 'Pod/Simple') {
+ push @first, $_;
+ } else {
+ push @other, $_;
+ }
+ }
+ @extspec = (@first, @other);
}
+if ($Config{osname} eq 'catamount' and @extspec) {
+ # Snowball's chance of building extensions.
+ die "This is $Config{osname}, not building $extspec[0], sorry.\n";
+}
+$ENV{PERL_CORE} = 1;
+
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!/!-!;
- $ext_pathname = "ext/$copy";
+
+ # Try new style ext/Data-Dumper/ first
+ my $copy = $spec;
+ $copy =~ tr!/!-!;
+
+ # List/Util.xs lives in Scalar-List-Utils, Cwd.xs lives in PathTools
+ $copy = 'Scalar-List-Utils' if $copy eq 'List-Util';
+ $copy = 'PathTools' if $copy eq 'Cwd';
+
+ foreach my $dir (@ext_dirs) {
+ if (-d "$dir/$copy") {
+ $ext_pathname = "$dir/$copy";
+ last;
+ }
}
- if ($Config{osname} eq 'catamount') {
- # Snowball's chance of building extensions.
- die "This is $Config{osname}, not building $mname, sorry.\n";
+ if (!defined $ext_pathname) {
+ if (-d "ext/$spec") {
+ # Old style ext/Data/Dumper/
+ $ext_pathname = "ext/$spec";
+ } else {
+ warn "Can't find extension $spec in any of @ext_dirs";
+ next;
+ }
}
- print "\tMaking $mname ($target)\n";
+ print "\tMaking $mname ($target)\n" if $verbose;
- build_extension($ext_pathname, $perl, $mname,
+ build_extension($ext_pathname, $perl, $mname, $target,
[@pass_through, @{$extra_passthrough{$spec} || []}]);
}
sub build_extension {
- my ($ext_dir, $perl, $mname, $pass_through) = @_;
+ my ($ext_dir, $perl, $mname, $target, $pass_through) = @_;
+
+ unless (chdir "$ext_dir") {
+ warn "Cannot cd to $ext_dir: $!";
+ return;
+ }
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), $lib_dir;
- unless (chdir "$ext_dir") {
- warn "Cannot cd to $ext_dir: $!";
- return;
- }
- my $makefile;
- if ($is_VMS) {
+ my ($makefile, $makefile_no_minus_f);
+ if (IS_VMS) {
$makefile = 'descrip.mms';
if ($target =~ /clean$/
&& !-f $makefile
$makefile = 'Makefile';
}
- if (!-f $makefile) {
+ if (-f $makefile) {
+ $makefile_no_minus_f = 0;
+ open my $mfh, $makefile or die "Cannot open $makefile: $!";
+ while (<$mfh>) {
+ # Plagiarised from CPAN::Distribution
+ last if /MakeMaker post_initialize section/;
+ next unless /^#\s+VERSION_FROM\s+=>\s+(.+)/;
+ my $vmod = eval $1;
+ my $oldv;
+ while (<$mfh>) {
+ next unless /^XS_VERSION = (\S+)/;
+ $oldv = $1;
+ last;
+ }
+ last unless defined $oldv;
+ require ExtUtils::MM_Unix;
+ defined (my $newv = parse_version MM $vmod) or last;
+ if ($newv ne $oldv) {
+ close $mfh or die "close $makefile: $!";
+ _unlink($makefile);
+ {
+ no warnings 'deprecated';
+ goto NO_MAKEFILE;
+ }
+ }
+ }
+
+ if (IS_CROSS) {
+ # If we're cross-compiling, it's possible that the host's
+ # Makefiles are around.
+ seek($mfh, 0, 0) or die "Cannot seek $makefile: $!";
+
+ my $cross_makefile;
+ while (<$mfh>) {
+ # XXX This might not be throughout enough.
+ # For example, it's possible to cause a false-positive
+ # if cross compiling on and for the Raspberry Pi,
+ # which is insane but plausible.
+ # False positives are really not troublesome, though;
+ # all they mean is that the module gets rebuilt.
+ if (/^CC = \Q$Config{cc}\E/) {
+ $cross_makefile = 1;
+ last;
+ }
+ }
+
+ if (!$cross_makefile) {
+ print "Deleting non-Cross makefile\n";
+ close $mfh or die "close $makefile: $!";
+ _unlink($makefile);
+ }
+ }
+ } else {
+ $makefile_no_minus_f = 1;
+ }
+
+ if ($makefile_no_minus_f || !-f $makefile) {
+ NO_MAKEFILE:
if (!-f 'Makefile.PL') {
- print "\nCreating Makefile.PL in $ext_dir for $mname\n";
+ unless (just_pm_to_blib($target, $ext_dir, $mname, $return_dir)) {
+ # No problems returned, so it has faked everything for us. :-)
+ chdir $return_dir || die "Cannot cd to $return_dir: $!";
+ return;
+ }
+
+ print "\nCreating Makefile.PL in $ext_dir for $mname\n" if $verbose;
+ my ($fromname, $key, $value);
+
+ $key = 'ABSTRACT_FROM';
# 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 $ext_dir but can't find source";
+ }
+ ($value = $fromname) =~ s/\.pm\z/.pod/;
+ $value = $fromname unless -e $value;
+
+ if ($mname eq 'Pod::Checker') {
+ # the abstract in the .pm file is unparseable by MM,
+ # so special-case it. We can't use the package's own
+ # Makefile.PL, as it doesn't handle the executable scripts
+ # right.
+ $key = 'ABSTRACT';
+ # this is copied from the CPAN Makefile.PL v 1.171
+ $value = 'Pod::Checker verifies POD documentation contents for compliance with the POD format specifications';
+ }
- unless ($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";
+ printf $fh <<'EOM', $0, $mname, $fromname, $key, $value;
#-*- buffer-read-only: t -*-
-# This Makefile.PL was written by $0.
+# This Makefile.PL was written by %s.
# It will be deleted automatically by make realclean
use strict;
use ExtUtils::MakeMaker;
+# This is what the .PL extracts to. Not the ultimate file that is installed.
+# (ie Win32 runs pl2bat after this)
+
+# Doing this here avoids all sort of quoting issues that would come from
+# attempting to write out perl source with literals to generate the arrays and
+# hash.
+my @temps = 'Makefile.PL';
+foreach (glob('scripts/pod*.PL')) {
+ # The various pod*.PL extractors change directory. Doing that with relative
+ # paths in @INC breaks. It seems the lesser of two evils to copy (to avoid)
+ # the chdir doing anything, than to attempt to convert lib paths to
+ # absolute, and potentially run into problems with quoting special
+ # characters in the path to our build dir (such as spaces)
+ require File::Copy;
+
+ my $temp = $_;
+ $temp =~ s!scripts/!!;
+ File::Copy::copy($_, $temp) or die "Can't copy $temp to $_: $!";
+ push @temps, $temp;
+}
+
+my $script_ext = $^O eq 'VMS' ? '.com' : '';
+my %%pod_scripts;
+foreach (glob('pod*.PL')) {
+ my $script = $_;
+ s/.PL$/$script_ext/i;
+ $pod_scripts{$script} = $_;
+}
+my @exe_files = values %%pod_scripts;
+
WriteMakefile(
- NAME => '$mname',
- VERSION_FROM => '$fromname',
- ABSTRACT_FROM => '$fromname',
- realclean => {FILES => 'Makefile.PL'},
+ NAME => '%s',
+ VERSION_FROM => '%s',
+ %-13s => '%s',
+ realclean => { FILES => "@temps" },
+ (%%pod_scripts ? (
+ PL_FILES => \%%pod_scripts,
+ EXE_FILES => \@exe_files,
+ clean => { FILES => "@exe_files" },
+ ) : ()),
);
# ex: set ro:
EOM
close $fh or die "Can't close Makefile.PL: $!";
+ # As described in commit 23525070d6c0e51f:
+ # Push the atime and mtime of generated Makefile.PLs back 4
+ # seconds. In certain circumstances ( on virtual machines ) the
+ # generated Makefile.PL can produce a Makefile that is older than
+ # the Makefile.PL. Altering the atime and mtime backwards by 4
+ # seconds seems to resolve the issue.
+ eval {
+ my $ftime = (stat('Makefile.PL'))[9] - 4;
+ utime $ftime, $ftime, 'Makefile.PL';
+ };
+ } elsif ($mname =~ /\A(?:Carp
+ |ExtUtils::CBuilder
+ |Safe
+ |Search::Dict)\z/x) {
+ # An explicit list of dual-life extensions that have a Makefile.PL
+ # for CPAN, but we have verified can also be built using the fakery.
+ my ($problem) = just_pm_to_blib($target, $ext_dir, $mname, $return_dir);
+ # We really need to sanity test that we can fake it.
+ # Otherwise "skips" will go undetected, and the build slow down for
+ # everyone, defeating the purpose.
+ if (defined $problem) {
+ if (-d "$return_dir/.git") {
+ # Get the list of files that git isn't ignoring:
+ my @files = `git ls-files --cached --others --exclude-standard 2>/dev/null`;
+ # on error (eg no git) we get nothing, but that's not a
+ # problem. The goal is to see if git thinks that the problem
+ # file is interesting, by getting a positive match with
+ # something git told us about, and if so bail out:
+ foreach (@files) {
+ chomp;
+ # We really need to sanity test that we can fake it.
+ # The intent is that this should only fail because
+ # you've just added a file to the dual-life dist that
+ # we can't handle. In which case you should either
+ # 1) remove the dist from the regex a few lines above.
+ # or
+ # 2) add the file to regex of "safe" filenames earlier
+ # in this function, that starts with ChangeLog
+ die "FATAL - $0 has $mname in the list of simple extensions, but it now contains file '$problem' which we can't handle"
+ if $problem eq $_;
+ }
+ # There's an unexpected file, but it seems to be something
+ # that git will ignore. So fall through to the regular
+ # Makefile.PL handling code below, on the assumption that
+ # we won't get here for a clean build.
+ }
+ warn "WARNING - $0 is building $mname using EU::MM, as it found file '$problem'";
+ } else {
+ # It faked everything for us.
+ chdir $return_dir || die "Cannot cd to $return_dir: $!";
+ return;
+ }
}
- 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) {
+
+ # We are going to have to use Makefile.PL:
+ print "\nRunning Makefile.PL in $ext_dir\n" if $verbose;
+
+ my @args = ("-I$lib_dir", 'Makefile.PL');
+ if (IS_VMS) {
my $libd = VMS::Filespec::vmspath($lib_dir);
push @args, "INST_LIB=$libd", "INST_ARCHLIB=$libd";
} else {
'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;
+ _quote_args(\@args) if IS_VMS;
+ print join(' ', $perl, @args), "\n" if $verbose;
+ my $code = do {
+ local $ENV{PERL_MM_USE_DEFAULT} = 1;
+ system $perl, @args;
+ };
+ if($code != 0){
+ #make sure next build attempt/run of make_ext.pl doesn't succeed
+ _unlink($makefile);
+ die "Unsuccessful Makefile.PL($ext_dir): code=$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
# 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';
+ if (IS_UNIX) {
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 $fh <<"EOS";
+ fallback_cleanup($return_dir, $clean_target, <<"EOS");
cd $ext_dir
if test ! -f Makefile -a -f Makefile.old; then
echo "Note: Using Makefile.old"
if test ! -f Makefile ; then
echo "Warning: No Makefile!"
fi
- make $clean_target MAKE='@make' @pass_through
+ @make $clean_target MAKE='@make' @pass_through
fi
cd $return_dir
EOS
- close $fh or die "close $file: $!";
}
}
}
print "Warning: No Makefile!\n";
}
- if ($is_VMS) {
- _macroify_passthrough($pass_through);
- unshift @$pass_through, "/DESCRIPTION=$makefile";
+ if (IS_VMS) {
+ _quote_args($pass_through);
+ @$pass_through = (
+ "/DESCRIPTION=$makefile",
+ '/MACRO=(' . join(',',@$pass_through) . ')'
+ );
}
- if (!$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);
+ print "Making $target in $ext_dir\n@make @targ\n" if $verbose;
+ local $ENV{PERL_INSTALL_QUIET} = 1;
+ my $code = system(@make, @targ);
+ if($code >> 8 != 0){ # probably cleaned itself, try again once more time
+ $code = system(@make, @targ);
+ }
die "Unsuccessful make($ext_dir): code=$code" if $code != 0;
chdir $return_dir || die "Cannot cd to $return_dir: $!";
;
}
-sub _macroify_passthrough {
- my $passthrough = shift;
- _quote_args($passthrough);
- my $macro = '/MACRO=(' . join(',',@$passthrough) . ')';
- @$passthrough = ();
- @$passthrough[0] = $macro;
+#guarentee that a file is deleted or die, void _unlink($filename)
+#xxx replace with _unlink_or_rename from EU::Install?
+sub _unlink {
+ 1 while unlink $_[0];
+ my $err = $!;
+ die "Can't unlink $_[0]: $err" if -f $_[0];
+}
+
+# Figure out if this extension is simple enough that it would only use
+# ExtUtils::MakeMaker's pm_to_blib target. If we're confident that it would,
+# then do all the work ourselves (returning an empty list), else return the
+# name of a file that we identified as beyond our ability to handle.
+#
+# While this is clearly quite a bit more work than just letting
+# ExtUtils::MakeMaker do it, and effectively is some code duplication, the time
+# savings are impressive.
+
+sub just_pm_to_blib {
+ my ($target, $ext_dir, $mname, $return_dir) = @_;
+ my ($has_lib, $has_top, $has_topdir);
+ my ($last) = $mname =~ /([^:]+)$/;
+ my ($first) = $mname =~ /^([^:]+)/;
+
+ my $pm_to_blib = IS_VMS ? 'pm_to_blib.ts' : 'pm_to_blib';
+ my $silent = defined $ENV{MAKEFLAGS} && $ENV{MAKEFLAGS} =~ /\b(s|silent|quiet)\b/;
+
+ foreach my $leaf (<*>) {
+ if (-d $leaf) {
+ $leaf =~ s/\.DIR\z//i
+ if IS_VMS;
+ next if $leaf =~ /\A(?:\.|\.\.|t|demo)\z/;
+ if ($leaf eq 'lib') {
+ ++$has_lib;
+ next;
+ }
+ if ($leaf eq $first) {
+ ++$has_topdir;
+ next;
+ }
+ }
+ return $leaf
+ unless -f _;
+ $leaf =~ s/\.\z//
+ if IS_VMS;
+ # Makefile.PL is "safe" to ignore because we will only be called for
+ # directories that hold a Makefile.PL if they are in the exception list.
+ next
+ if $leaf =~ /\A(ChangeLog
+ |Changes
+ |LICENSE
+ |Makefile\.PL
+ |MANIFEST
+ |META\.yml
+ |\Q$pm_to_blib\E
+ |README
+ |README\.patching
+ |README\.release
+ )\z/xi; # /i to deal with case munging systems.
+ if ($leaf eq "$last.pm") {
+ ++$has_top;
+ next;
+ }
+ return $leaf;
+ }
+ return 'no lib/'
+ unless $has_lib || $has_top;
+ die "Inconsistent module $mname has both lib/ and $first/"
+ if $has_lib && $has_topdir;
+
+ print "Running pm_to_blib for $ext_dir directly\n"
+ unless $silent;
+
+ my %pm;
+ if ($has_top) {
+ my $to = $mname =~ s!::!/!gr;
+ $pm{"$last.pm"} = "../../lib/$to.pm";
+ }
+ if ($has_lib || $has_topdir) {
+ # strictly ExtUtils::MakeMaker uses the pm_to_blib target to install
+ # .pm, pod and .pl files. We're just going to do it for .pm and .pod
+ # files, to avoid problems on case munging file systems. Specifically,
+ # _pm.PL which ExtUtils::MakeMaker should run munges to _PM.PL, and
+ # looks a lot like a regular foo.pl (ie FOO.PL)
+ my @found;
+ require File::Find;
+ unless (eval {
+ File::Find::find({
+ no_chdir => 1,
+ wanted => sub {
+ return if -d $_;
+ # Bail out immediately with the problem file:
+ die \$_
+ unless -f _;
+ die \$_
+ unless /\A[^.]+\.(?:pm|pod)\z/i;
+ push @found, $_;
+ }
+ }, $has_lib ? 'lib' : $first);
+ 1;
+ }) {
+ # Problem files aren't really errors:
+ return ${$@}
+ if ref $@ eq 'SCALAR';
+ # But anything else is:
+ die $@;
+ }
+ if ($has_lib) {
+ $pm{$_} = "../../$_"
+ foreach @found;
+ } else {
+ $pm{$_} = "../../lib/$_"
+ foreach @found;
+ }
+ }
+ # This is running under miniperl, so no autodie
+ if ($target eq 'all') {
+ my $need_update = 1;
+ if (-f $pm_to_blib) {
+ # avoid touching pm_to_blib unless there's something that
+ # needs updating, see #126710
+ $need_update = 0;
+ my $test_at = -M _;
+ while (my $from = each(%pm)) {
+ if (-M $from < $test_at) {
+ ++$need_update;
+ last;
+ }
+ }
+ keys %pm; # reset iterator
+ }
+
+ if ($need_update) {
+ local $ENV{PERL_INSTALL_QUIET} = 1;
+ require ExtUtils::Install;
+ ExtUtils::Install::pm_to_blib(\%pm, '../../lib/auto');
+ open my $fh, '>', $pm_to_blib
+ or die "Can't open '$pm_to_blib': $!";
+ print $fh "$0 has handled pm_to_blib directly\n";
+ close $fh
+ or die "Can't close '$pm_to_blib': $!";
+ if (IS_UNIX) {
+ # Fake the fallback cleanup
+ my $fallback
+ = join '', map {s!^\.\./\.\./!!; "rm -f $_\n"} sort values %pm;
+ foreach my $clean_target ('realclean', 'veryclean') {
+ fallback_cleanup($return_dir, $clean_target, $fallback);
+ }
+ }
+ }
+ } else {
+ # A clean target.
+ # For now, make the targets behave the same way as ExtUtils::MakeMaker
+ # does
+ _unlink($pm_to_blib);
+ unless ($target eq 'clean') {
+ # but cheat a bit, by relying on the top level Makefile clean target
+ # to take out our directory lib/auto/...
+ # (which it has to deal with, as cpan/foo/bar creates
+ # lib/auto/foo/bar, but the EU::MM rule will only
+ # rmdir lib/auto/foo/bar, leaving lib/auto/foo
+ _unlink($_)
+ foreach sort values %pm;
+ }
+ }
+ return;
+}
+
+sub fallback_cleanup {
+ my ($dir, $clean_target, $contents) = @_;
+ my $file = "$dir/$clean_target.sh";
+ 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 $contents or die "print $file: $!";
+ close $fh or die "close $file: $!";
}