1 files changed, 62 insertions, 0 deletions
diff --git a/perl/Makefile.PL b/perl/Makefile.PL
new file mode 100644
index 0000000000..3f29ba98a6
--- /dev/null
+++ b/perl/Makefile.PL
@@ -0,0 +1,62 @@
+use strict;
+use warnings;
+use ExtUtils::MakeMaker;
+use Getopt::Long;
+use File::Find;
+
+# Don't forget to update the perl/Makefile, too.
+# Don't forget to test with NO_PERL_MAKEMAKER=YesPlease
+
+# Sanity: die at first unknown option
+Getopt::Long::Configure qw/ pass_through /;
+
+my $localedir = '';
+GetOptions("localedir=s" => \$localedir);
+
+sub MY::postamble {
+	return <<'MAKE_FRAG';
+instlibdir:
+	@echo '$(INSTALLSITELIB)'
+
+ifneq (,$(DESTDIR))
+ifeq (0,$(shell expr '$(MM_VERSION)' '>' 6.10))
+$(error ExtUtils::MakeMaker version "$(MM_VERSION)" is older than 6.11 and so \
+	is likely incompatible with the DESTDIR mechanism.  Try setting \
+	NO_PERL_MAKEMAKER=1 instead)
+endif
+endif
+
+MAKE_FRAG
+}
+
+# Find all the .pm files in "Git/" and Git.pm
+my %pm;
+find sub {
+	return unless /\.pm$/;
+
+	# sometimes File::Find prepends a ./  Strip it.
+	my $pm_path = $File::Find::name;
+	$pm_path =~ s{^\./}{};
+
+	$pm{$pm_path} = '$(INST_LIBDIR)/'.$pm_path;
+}, "Git", "Git.pm";
+
+
+# We come with our own bundled Error.pm. It's not in the set of default
+# Perl modules so install it if it's not available on the system yet.
+if ( !eval { require Error } || $Error::VERSION < 0.15009) {
+	$pm{'private-Error.pm'} = '$(INST_LIBDIR)/Error.pm';
+}
+
+# redirect stdout, otherwise the message "Writing perl.mak for Git"
+# disrupts the output for the target 'instlibdir'
+open STDOUT, ">&STDERR";
+
+WriteMakefile(
+	NAME            => 'Git',
+	VERSION_FROM    => 'Git.pm',
+	PM		=> \%pm,
+	PM_FILTER	=> qq[\$(PERL) -pe "s<\\Q++LOCALEDIR++\\E><$localedir>"],
+	MAKEFILE	=> 'perl.mak',
+	INSTALLSITEMAN3DIR => '$(SITEPREFIX)/share/man/man3'
+);