add manifest xt test

MANIFEST

@@ -15,7 +15,6 @@ mkta.pl
 oci.def				OCI.DLL export declarations
 oci8.c
 ocitrace.h
-ora_explain.PL
 Oracle.ex/bind.pl
 Oracle.ex/commit.pl
 Oracle.ex/curref.pl
@@ -33,21 +32,6 @@ Oracle.xs
 oraperl.ph Old oraperl file included for completeness of emulation
 Oraperl.pm
 README
-README-files/hpux/Conf-Lincoln-1.06
-README-files/hpux/Conf-Lincoln-1.07
-README-files/hpux/Conf-Merijn-580-10.20-cc
-README-files/hpux/Conf-Merijn-585-11.00-cc
-README-files/hpux/Conf-Merijn-585-11.11-cc
-README-files/hpux/Conf-Merijn-587-11.23-cc
-README-files/hpux/Conf-Merijn-588-10.20-gcc
-README-files/hpux/Conf-Merijn-588-11.00-gcc32
-README-files/hpux/Conf-Merijn-588-11.00-gcc64
-README-files/hpux/Conf-Merijn-588-11.11-gcc32
-README-files/hpux/Conf-Merijn-588-11.11-gcc64
-README-files/hpux/Conf-Merijn-588-11.23-gcc64
-README-files/hpux/Conf-Mike
-README-files/hpux/Conf-Roger
-README-files/hpux/libjava.eml
 README-files/hpux/Makefile-Lincoln
 README.64bit.txt
 README.aix.txt
@@ -102,3 +86,5 @@ t/nchar_test_lib.pl
 test.pl
 Todo
 typemap
+examples/ora_explain.pl
+t/00versions.t

MANIFEST.SKIP

@@ -15,3 +15,5 @@
 ^oracle/
 ^tags$
 ~$
+^\.git
+^xt

xt/manifest.t

@@ -0,0 +1,21 @@
+use strict;
+use warnings;
+
+use ExtUtils::Manifest qw/ fullcheck /;
+
+use Test::More tests => 1;
+
+my ( $missing, $extra ) = do {
+    local *STDERR;
+
+    # hush little baby, don't you cry
+    open STDERR, '>', \my $stderr;
+
+    fullcheck();
+};
+
+ok @$missing + @$extra == 0, 'manifest in sync' or do {
+    diag "missing files:\n", map { " \t $_\n " } @$missing if @$missing;
+    diag "extra files: \n",  map { "\t$_\n" } @$extra      if @$extra;
+};
+