diff --git a/lang/perl5.10/Makefile b/lang/perl5.10/Makefile
index a29e1dbc2813..9d922ee355d3 100644
--- a/lang/perl5.10/Makefile
+++ b/lang/perl5.10/Makefile
@@ -3,7 +3,7 @@
 # Date created:		16 April 1995
 # Whom:			markm
 #
-# $Id: Makefile,v 1.8 1995/04/15 05:44:51 asami Exp $
+# $Id: Makefile,v 1.1.1.1 1995/04/17 06:02:33 asami Exp $
 #
 
 DISTNAME=		perl5.001
@@ -14,6 +14,13 @@ EXTRACT_SUFX=		.tar.gz
 
 MAINTAINER=	markm@FreeBSD.ORG
 
+#
+# This isn't really interactive, but the Configure script checks for
+# file descriptor 0, so it won't run if you </dev/null to run a
+# nightly batch build....
+#
+IS_INTERACTIVE=		yes
+
 HAS_CONFIGURE=		yes
 CONFIGURE_SCRIPT=	Configure
 CONFIGURE_ARGS=		-sde
diff --git a/lang/perl5.12/Makefile b/lang/perl5.12/Makefile
index a29e1dbc2813..9d922ee355d3 100644
--- a/lang/perl5.12/Makefile
+++ b/lang/perl5.12/Makefile
@@ -3,7 +3,7 @@
 # Date created:		16 April 1995
 # Whom:			markm
 #
-# $Id: Makefile,v 1.8 1995/04/15 05:44:51 asami Exp $
+# $Id: Makefile,v 1.1.1.1 1995/04/17 06:02:33 asami Exp $
 #
 
 DISTNAME=		perl5.001
@@ -14,6 +14,13 @@ EXTRACT_SUFX=		.tar.gz
 
 MAINTAINER=	markm@FreeBSD.ORG
 
+#
+# This isn't really interactive, but the Configure script checks for
+# file descriptor 0, so it won't run if you </dev/null to run a
+# nightly batch build....
+#
+IS_INTERACTIVE=		yes
+
 HAS_CONFIGURE=		yes
 CONFIGURE_SCRIPT=	Configure
 CONFIGURE_ARGS=		-sde
diff --git a/lang/perl5.14/Makefile b/lang/perl5.14/Makefile
index a29e1dbc2813..9d922ee355d3 100644
--- a/lang/perl5.14/Makefile
+++ b/lang/perl5.14/Makefile
@@ -3,7 +3,7 @@
 # Date created:		16 April 1995
 # Whom:			markm
 #
-# $Id: Makefile,v 1.8 1995/04/15 05:44:51 asami Exp $
+# $Id: Makefile,v 1.1.1.1 1995/04/17 06:02:33 asami Exp $
 #
 
 DISTNAME=		perl5.001
@@ -14,6 +14,13 @@ EXTRACT_SUFX=		.tar.gz
 
 MAINTAINER=	markm@FreeBSD.ORG
 
+#
+# This isn't really interactive, but the Configure script checks for
+# file descriptor 0, so it won't run if you </dev/null to run a
+# nightly batch build....
+#
+IS_INTERACTIVE=		yes
+
 HAS_CONFIGURE=		yes
 CONFIGURE_SCRIPT=	Configure
 CONFIGURE_ARGS=		-sde
diff --git a/lang/perl5.16/Makefile b/lang/perl5.16/Makefile
index a29e1dbc2813..9d922ee355d3 100644
--- a/lang/perl5.16/Makefile
+++ b/lang/perl5.16/Makefile
@@ -3,7 +3,7 @@
 # Date created:		16 April 1995
 # Whom:			markm
 #
-# $Id: Makefile,v 1.8 1995/04/15 05:44:51 asami Exp $
+# $Id: Makefile,v 1.1.1.1 1995/04/17 06:02:33 asami Exp $
 #
 
 DISTNAME=		perl5.001
@@ -14,6 +14,13 @@ EXTRACT_SUFX=		.tar.gz
 
 MAINTAINER=	markm@FreeBSD.ORG
 
+#
+# This isn't really interactive, but the Configure script checks for
+# file descriptor 0, so it won't run if you </dev/null to run a
+# nightly batch build....
+#
+IS_INTERACTIVE=		yes
+
 HAS_CONFIGURE=		yes
 CONFIGURE_SCRIPT=	Configure
 CONFIGURE_ARGS=		-sde
diff --git a/lang/perl5.6/Makefile b/lang/perl5.6/Makefile
index a29e1dbc2813..9d922ee355d3 100644
--- a/lang/perl5.6/Makefile
+++ b/lang/perl5.6/Makefile
@@ -3,7 +3,7 @@
 # Date created:		16 April 1995
 # Whom:			markm
 #
-# $Id: Makefile,v 1.8 1995/04/15 05:44:51 asami Exp $
+# $Id: Makefile,v 1.1.1.1 1995/04/17 06:02:33 asami Exp $
 #
 
 DISTNAME=		perl5.001
@@ -14,6 +14,13 @@ EXTRACT_SUFX=		.tar.gz
 
 MAINTAINER=	markm@FreeBSD.ORG
 
+#
+# This isn't really interactive, but the Configure script checks for
+# file descriptor 0, so it won't run if you </dev/null to run a
+# nightly batch build....
+#
+IS_INTERACTIVE=		yes
+
 HAS_CONFIGURE=		yes
 CONFIGURE_SCRIPT=	Configure
 CONFIGURE_ARGS=		-sde
diff --git a/lang/perl5.8/Makefile b/lang/perl5.8/Makefile
index a29e1dbc2813..9d922ee355d3 100644
--- a/lang/perl5.8/Makefile
+++ b/lang/perl5.8/Makefile
@@ -3,7 +3,7 @@
 # Date created:		16 April 1995
 # Whom:			markm
 #
-# $Id: Makefile,v 1.8 1995/04/15 05:44:51 asami Exp $
+# $Id: Makefile,v 1.1.1.1 1995/04/17 06:02:33 asami Exp $
 #
 
 DISTNAME=		perl5.001
@@ -14,6 +14,13 @@ EXTRACT_SUFX=		.tar.gz
 
 MAINTAINER=	markm@FreeBSD.ORG
 
+#
+# This isn't really interactive, but the Configure script checks for
+# file descriptor 0, so it won't run if you </dev/null to run a
+# nightly batch build....
+#
+IS_INTERACTIVE=		yes
+
 HAS_CONFIGURE=		yes
 CONFIGURE_SCRIPT=	Configure
 CONFIGURE_ARGS=		-sde
diff --git a/lang/perl5/Makefile b/lang/perl5/Makefile
index a29e1dbc2813..9d922ee355d3 100644
--- a/lang/perl5/Makefile
+++ b/lang/perl5/Makefile
@@ -3,7 +3,7 @@
 # Date created:		16 April 1995
 # Whom:			markm
 #
-# $Id: Makefile,v 1.8 1995/04/15 05:44:51 asami Exp $
+# $Id: Makefile,v 1.1.1.1 1995/04/17 06:02:33 asami Exp $
 #
 
 DISTNAME=		perl5.001
@@ -14,6 +14,13 @@ EXTRACT_SUFX=		.tar.gz
 
 MAINTAINER=	markm@FreeBSD.ORG
 
+#
+# This isn't really interactive, but the Configure script checks for
+# file descriptor 0, so it won't run if you </dev/null to run a
+# nightly batch build....
+#
+IS_INTERACTIVE=		yes
+
 HAS_CONFIGURE=		yes
 CONFIGURE_SCRIPT=	Configure
 CONFIGURE_ARGS=		-sde