1 files changed, 47 insertions, 0 deletions
diff --git a/inc/bootstrap.pl b/inc/bootstrap.pl
new file mode 100644
index 0000000..2011fc7
--- /dev/null
+++ b/inc/bootstrap.pl
@@ -0,0 +1,47 @@
+# bootstrap.pl
+# bootstrap modules in inc/ for use during configuration with
+# either Build.PL or Makefile.PL
+
+my @exit_warn;
+
+END {
+  warn "\nThese additional prerequisites must be installed:\n  requires:\n"
+    if @exit_warn;
+  while( my $h = shift @exit_warn ) {
+    my ($mod, $min) = @$h;
+    warn "    ! $mod (we need version $min)\n";
+  }
+}
+
+BEGIN {
+  if ( ! eval "use Perl::OSType 1 (); 1" ) {
+    print "*** BOOTSTRAPPING Perl::OSType ***\n";
+    push @exit_warn, [ 'Perl::OSType', '1.00' ];
+    delete $INC{'Perl/OSType.pm'};
+    local @INC = @INC;
+    push @INC, 'inc';
+    eval "require Perl::OSType; 1"
+      or die "BOOSTRAP FAIL: $@";
+  }
+  if ( ! eval "use version 0.87 (); 1" ) {
+    print "*** BOOTSTRAPPING version ***\n";
+    push @exit_warn, [ 'version', '0.87' ];
+    delete $INC{'version.pm'};
+    local @INC = @INC;
+    push @INC, 'inc';
+    eval "require MBVersion; 1"
+      or die "BOOSTRAP FAIL: $@";
+  }
+  if ( ! eval "use Module::Metadata 1.000002 (); 1" ) {
+    print "*** BOOTSTRAPPING Module::Metadata ***\n";
+    push @exit_warn, [ 'Module::Metadata', '1.000002' ];
+    delete $INC{'Module/Metadata.pm'};
+    local @INC = @INC;
+    push @INC, 'inc';
+    eval "require Module::Metadata; 1"
+      or die "BOOSTRAP FAIL: $@";
+  }
+}
+
+1;
+