diff --git a/math/abs/Makefile b/math/abs/Makefile
index e0a7bbea8a2..58e9b4535d0 100644
--- a/math/abs/Makefile
+++ b/math/abs/Makefile
@@ -1,9 +1,11 @@
-# $OpenBSD: Makefile,v 1.1.1.1 2000/12/28 13:55:13 kevlo Exp $
+# $OpenBSD: Makefile,v 1.2 2001/05/06 01:58:40 lebel Exp $
+
+COMMENT=	"free spreadsheet with graphical user interface"
 
 DISTNAME=	abs-src-0.8
 PKGNAME=	abs-0.8
 CATEGORIES=	math
-NEED_VERSION=	1.348
+NEED_VERSION=	1.402
 
 HOMEPAGE=	http://www.ping.be/bertin/abs.shtml
 
diff --git a/math/abs/pkg/COMMENT b/math/abs/pkg/COMMENT
deleted file mode 100644
index b7760ccdfcd..00000000000
--- a/math/abs/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-free spreadsheet with graphical user interface
diff --git a/math/calc/Makefile b/math/calc/Makefile
index c6b2c27a2a8..35091cce813 100644
--- a/math/calc/Makefile
+++ b/math/calc/Makefile
@@ -1,10 +1,13 @@
-# $OpenBSD: Makefile,v 1.6 2000/10/22 15:42:36 espie Exp $
+# $OpenBSD: Makefile,v 1.7 2001/05/06 01:58:45 lebel Exp $
 #
 
+COMMENT=	"C-style arbitrary precision calculator"
+
 DISTNAME=	calc-2.11.1t3.0
 CATEGORIES=	math
 MASTER_SITES=	ftp://ftp.uu.net/pub/calc/ \
 		ftp://reality.sgi.com/chongo/src/calc/
+NEED_VERSION=	1.402
 
 PERMIT_PACKAGE_FTP=	Yes
 PERMIT_PACKAGE_CDROM=	Yes
diff --git a/math/calc/pkg/COMMENT b/math/calc/pkg/COMMENT
deleted file mode 100644
index d335fc5fa02..00000000000
--- a/math/calc/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-C-style arbitrary precision calculator
diff --git a/math/hoc/Makefile b/math/hoc/Makefile
index 0d63d681ad9..501eff3ad35 100644
--- a/math/hoc/Makefile
+++ b/math/hoc/Makefile
@@ -1,10 +1,12 @@
 # Ports collection makefile for	"hoc", the High Order Calculator
-# $OpenBSD: Makefile,v 1.16 2001/02/22 22:06:10 espie Exp $
+# $OpenBSD: Makefile,v 1.17 2001/05/06 01:58:49 lebel Exp $
+
+COMMENT=	"from Kernighan & Pike: High Order Calculator"
 
 DISTNAME=	hoc
 PKGNAME=	hoc-1.1
 CATEGORIES=	math
-NEED_VERSION=	1.342
+NEED_VERSION=	1.402
 MASTER_SITES=	http://cm.bell-labs.com/cm/cs/who/bwk/
 EXTRACT_SUFX=	.sh
 
diff --git a/math/hoc/pkg/COMMENT b/math/hoc/pkg/COMMENT
deleted file mode 100644
index 0c17568d77f..00000000000
--- a/math/hoc/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-from Kernighan & Pike: High Order Calculator
diff --git a/math/maple-share/Makefile b/math/maple-share/Makefile
index a84c397715b..8f8c1583143 100644
--- a/math/maple-share/Makefile
+++ b/math/maple-share/Makefile
@@ -1,7 +1,9 @@
-# $OpenBSD: Makefile,v 1.1.1.1 2000/11/19 20:02:12 espie Exp $
+# $OpenBSD: Makefile,v 1.2 2001/05/06 01:58:57 lebel Exp $
 # Original from: Marc Espie
 # XXX This port installs in a somewhat unusual way.
 
+COMMENT=	"libraries for maple V 5; commercial"
+
 # Directory where the maple CDROM was mounted
 .if !defined(MAPLE_CDROM)
 IGNORE="Commercial port, mount the maple share cdrom and build with make MAPLE_CDROM=mount_point"
@@ -13,7 +15,7 @@ TRUEMAPLE_DIR?=${TRUEPREFIX}/maple
 
 DISTNAME=	mapleshare-5.5
 CATEGORIES=     math
-NEED_VERSION=	1.223
+NEED_VERSION=	1.402
 
 # if someone wants to buy the sparc version and check it, be my guest...
 
diff --git a/math/maple-share/pkg/COMMENT b/math/maple-share/pkg/COMMENT
deleted file mode 100644
index 9689e7f55c1..00000000000
--- a/math/maple-share/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-libraries for maple V 5; commercial
diff --git a/math/maple/Makefile b/math/maple/Makefile
index c59a766c7d9..ffd33ca484d 100644
--- a/math/maple/Makefile
+++ b/math/maple/Makefile
@@ -1,7 +1,9 @@
-# $OpenBSD: Makefile,v 1.15 2001/02/16 14:51:16 espie Exp $
+# $OpenBSD: Makefile,v 1.16 2001/05/06 01:58:53 lebel Exp $
 # Original from: Marc Espie
 # XXX This port installs in a somewhat unusual way.
 
+COMMENT=	"algebraic and symbolic computations; commercial"
+
 # Directory where the maple CDROM was mounted
 .if !defined(MAPLE_CDROM)
 IGNORE="Commercial port, mount the maple cdrom and build with make MAPLE_CDROM=mount_point"
@@ -13,7 +15,7 @@ TRUEMAPLE_DIR?=${TRUEPREFIX}/maple
 
 DISTNAME=	maple-5.5
 CATEGORIES=     math
-NEED_VERSION=	1.223
+NEED_VERSION=	1.402
 
 RUN_DEPENDS=	/emul/linux/usr/i486-linux-libc5/lib/libc.so.5::emulators/redhat_base
 
diff --git a/math/maple/pkg/COMMENT b/math/maple/pkg/COMMENT
deleted file mode 100644
index 10be7e9cd0d..00000000000
--- a/math/maple/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-algebraic and symbolic computations; commercial
diff --git a/math/netcdf/Makefile b/math/netcdf/Makefile
index 1b4560b7a4c..70267d9bf05 100644
--- a/math/netcdf/Makefile
+++ b/math/netcdf/Makefile
@@ -1,10 +1,12 @@
-# $OpenBSD: Makefile,v 1.1.1.1 2000/12/26 12:22:53 reinhard Exp $ 
+# $OpenBSD: Makefile,v 1.2 2001/05/06 01:59:01 lebel Exp $ 
 # $FreeBSD: ports/math/netcdf/Makefile,v 1.7 2000/06/16 21:51:39 asami Exp $
 #
 
+COMMENT=	"library for machine-independent, array-oriented data access"
+
 DISTNAME=	netcdf-3.5b3
 CATEGORIES=	math
-NEED_VERSION=	1.346
+NEED_VERSION=	1.402
 DISTFILES=	netcdf-3.5-beta3.tar.Z
 
 MASTER_SITES=	ftp://unidata.ucar.edu/pub/netcdf/
diff --git a/math/netcdf/pkg/COMMENT b/math/netcdf/pkg/COMMENT
deleted file mode 100644
index c4bcb0f65a4..00000000000
--- a/math/netcdf/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-library for machine-independent, array-oriented data access
diff --git a/math/ntl/Makefile b/math/ntl/Makefile
index 2c3ffaf4a78..726bd510370 100644
--- a/math/ntl/Makefile
+++ b/math/ntl/Makefile
@@ -1,8 +1,10 @@
-# $OpenBSD: Makefile,v 1.4 2001/03/16 13:45:44 wilfried Exp $
+# $OpenBSD: Makefile,v 1.5 2001/05/06 01:59:06 lebel Exp $
+
+COMMENT=	"Victor Shoup's Number Theory Library"
 
 DISTNAME=	ntl-5.0c
 CATEGORIES=	math
-NEED_VERSION=	1.355
+NEED_VERSION=	1.402
 MASTER_SITES=	http://www.shoup.net/ntl/
 
 PERMIT_PACKAGE_FTP=	Yes
diff --git a/math/ntl/pkg/COMMENT b/math/ntl/pkg/COMMENT
deleted file mode 100644
index e71d93a64b7..00000000000
--- a/math/ntl/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-Victor Shoup's Number Theory Library
diff --git a/math/p5-AI-NeuralNet-BackProp/Makefile b/math/p5-AI-NeuralNet-BackProp/Makefile
index 360c1f78bff..fd924ae1e11 100644
--- a/math/p5-AI-NeuralNet-BackProp/Makefile
+++ b/math/p5-AI-NeuralNet-BackProp/Makefile
@@ -1,9 +1,11 @@
-# $OpenBSD: Makefile,v 1.1.1.1 2001/01/23 15:05:24 kevlo Exp $
+# $OpenBSD: Makefile,v 1.2 2001/05/06 01:59:11 lebel Exp $
+
+COMMENT=	"implement a back-propagation feed-forward neural network"
 
 DISTNAME=	AI-NeuralNet-BackProp-0.89
 PKGNAME=	p5-${DISTNAME}
 CATEGORIES=	math perl5
-NEED_VERSION=	1.352
+NEED_VERSION=	1.402
 
 MAINTAINER=	Kevin Lo <kevlo@openbsd.org>
 
diff --git a/math/p5-AI-NeuralNet-BackProp/pkg/COMMENT b/math/p5-AI-NeuralNet-BackProp/pkg/COMMENT
deleted file mode 100644
index cc1be4995c8..00000000000
--- a/math/p5-AI-NeuralNet-BackProp/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-implement a back-propagation feed-forward neural network
diff --git a/math/p5-AI-NeuralNet-Mesh/Makefile b/math/p5-AI-NeuralNet-Mesh/Makefile
index 742853df09a..bb9491faba0 100644
--- a/math/p5-AI-NeuralNet-Mesh/Makefile
+++ b/math/p5-AI-NeuralNet-Mesh/Makefile
@@ -1,9 +1,11 @@
-# $OpenBSD: Makefile,v 1.1.1.1 2001/01/23 15:06:45 kevlo Exp $
+# $OpenBSD: Makefile,v 1.2 2001/05/06 01:59:16 lebel Exp $
+
+COMMENT=	"module to implement an accurate neural network mesh"
 
 DISTNAME=	AI-NeuralNet-Mesh-0.44
 PKGNAME=	p5-${DISTNAME}
 CATEGORIES=	math perl5
-NEED_VERSION=	1.352
+NEED_VERSION=	1.402
 
 MAINTAINER=	Kevin Lo <kevlo@openbsd.org>
 
diff --git a/math/p5-AI-NeuralNet-Mesh/pkg/COMMENT b/math/p5-AI-NeuralNet-Mesh/pkg/COMMENT
deleted file mode 100644
index 27b8d2b5e12..00000000000
--- a/math/p5-AI-NeuralNet-Mesh/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-module to implement an accurate neural network mesh
diff --git a/math/p5-AI-Perceptron/Makefile b/math/p5-AI-Perceptron/Makefile
index 90225853e65..1f16bad642f 100644
--- a/math/p5-AI-Perceptron/Makefile
+++ b/math/p5-AI-Perceptron/Makefile
@@ -1,9 +1,11 @@
-# $OpenBSD: Makefile,v 1.1.1.1 2001/01/23 15:54:32 kevlo Exp $
+# $OpenBSD: Makefile,v 1.2 2001/05/06 01:59:21 lebel Exp $
+
+COMMENT=	"module to internal operations of neural networks"
 
 DISTNAME=	AI-Perceptron-0.01
 PKGNAME=	p5-${DISTNAME}
 CATEGORIES=	math perl5
-NEED_VERSION=	1.352
+NEED_VERSION=	1.402
 
 MAINTAINER=	Kevin Lo <kevlo@openbsd.org>
 
diff --git a/math/p5-AI-Perceptron/pkg/COMMENT b/math/p5-AI-Perceptron/pkg/COMMENT
deleted file mode 100644
index 2dad3829458..00000000000
--- a/math/p5-AI-Perceptron/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-module to internal operations of neural networks
diff --git a/math/p5-Set-IntSpan/Makefile b/math/p5-Set-IntSpan/Makefile
index 1297af64850..6150eff10b0 100644
--- a/math/p5-Set-IntSpan/Makefile
+++ b/math/p5-Set-IntSpan/Makefile
@@ -1,9 +1,11 @@
-# $OpenBSD: Makefile,v 1.1.1.1 2001/01/24 08:22:10 kevlo Exp $
+# $OpenBSD: Makefile,v 1.2 2001/05/06 01:59:26 lebel Exp $
+
+COMMENT=	"manage sets of integers"
 
 DISTNAME=	Set-IntSpan-1.07
 PKGNAME=	p5-${DISTNAME}
 CATEGORIES=	math perl5
-NEED_VERSION=	1.352
+NEED_VERSION=	1.402
 
 MAINTAINER=	Kevin Lo <kevlo@openbsd.org>
 
diff --git a/math/p5-Set-IntSpan/pkg/COMMENT b/math/p5-Set-IntSpan/pkg/COMMENT
deleted file mode 100644
index d6bd66f768b..00000000000
--- a/math/p5-Set-IntSpan/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-manage sets of integers
diff --git a/math/wingz/Makefile b/math/wingz/Makefile
index 9c5cb2a7e2c..d605da03495 100644
--- a/math/wingz/Makefile
+++ b/math/wingz/Makefile
@@ -1,10 +1,12 @@
-# $OpenBSD: Makefile,v 1.10 2001/02/24 06:04:21 angelos Exp $
+# $OpenBSD: Makefile,v 1.11 2001/05/06 01:59:31 lebel Exp $
 #
 
+COMMENT=	"commercial spreadsheet"
+
 ONLY_FOR_ARCHS=	i386
 DISTNAME=	Wingz-142
 CATEGORIES=	math
-NEED_VERSION=	1.230
+NEED_VERSION=	1.402
 MASTER_SITES=	${MASTER_SITE_SUNSITE}
 MASTER_SITE_SUBDIR=	apps/financial/spreadsheet
 EXTRACT_SUFX=	.tgz
diff --git a/math/wingz/pkg/COMMENT b/math/wingz/pkg/COMMENT
deleted file mode 100644
index 3e6c70a4bc9..00000000000
--- a/math/wingz/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-commercial spreadsheet
diff --git a/math/xspread/Makefile b/math/xspread/Makefile
index 6705964cf1b..99589801e4e 100644
--- a/math/xspread/Makefile
+++ b/math/xspread/Makefile
@@ -1,10 +1,12 @@
-# $OpenBSD: Makefile,v 1.6 2000/08/19 04:40:57 kevlo Exp $
+# $OpenBSD: Makefile,v 1.7 2001/05/06 01:59:36 lebel Exp $
 #
 
+COMMENT=	"spreadsheet program under X11"
+
 DISTNAME=	xspread3.1.1c
 PKGNAME=	xspread-3.1.1c
 CATEGORIES=	math
-NEED_VERSION=	1.319
+NEED_VERSION=	1.402
 
 MAINTAINER=	ports@openbsd.org
 
diff --git a/math/xspread/pkg/COMMENT b/math/xspread/pkg/COMMENT
deleted file mode 100644
index 7683bca84f8..00000000000
--- a/math/xspread/pkg/COMMENT
+++ /dev/null
@@ -1 +0,0 @@
-spreadsheet program under X11