diff -x '*old.*' -x '*new.*' -ruN maxima.orig/Makefile maxima/Makefile
--- maxima.orig/Makefile	2010-04-29 22:48:18.000000000 -0400
+++ maxima/Makefile	2010-04-29 21:59:55.000000000 -0400
@@ -6,8 +6,7 @@
 #
 
 PORTNAME=	maxima
-PORTVERSION=	5.20.1
-PORTREVISION=	3
+PORTVERSION=	5.21.1
 CATEGORIES=	math tk
 MASTER_SITES=	SF/maxima/Maxima-source/${PORTVERSION}-source
 
diff -x '*old.*' -x '*new.*' -ruN maxima.orig/distinfo maxima/distinfo
--- maxima.orig/distinfo	2010-04-29 22:48:18.000000000 -0400
+++ maxima/distinfo	2010-04-29 22:01:37.000000000 -0400
@@ -1,3 +1,3 @@
-MD5 (maxima-5.20.1.tar.gz) = cec78b96cc453e470871063fc16cd52f
-SHA256 (maxima-5.20.1.tar.gz) = cc2430ad6b895fb730ee2a7b8df4852c2b6d09a5a8bb715bdba783982c470bd9
-SIZE (maxima-5.20.1.tar.gz) = 20655669
+MD5 (maxima-5.21.1.tar.gz) = e08ed533f3059cec52788ef35198bdcc
+SHA256 (maxima-5.21.1.tar.gz) = 1dae887e1787871437d699a6b1acc1c1f7428729487492a07c6a31e26bf53a1b
+SIZE (maxima-5.21.1.tar.gz) = 21371967
diff -x '*old.*' -x '*new.*' -ruN maxima.orig/pkg-plist maxima/pkg-plist
--- maxima.orig/pkg-plist	2010-04-29 22:48:18.000000000 -0400
+++ maxima/pkg-plist	2010-04-29 22:14:34.000000000 -0400
@@ -25,6 +25,9 @@
 %%DATADIR%%/%%PORTVERSION%%/doc/EMaximaIntro.ps
 %%DATADIR%%/%%PORTVERSION%%/doc/contributors
 %%DATADIR%%/%%PORTVERSION%%/doc/html/contents.hhc
+%%DATADIR%%/%%PORTVERSION%%/doc/html/figures/contour1.gif
+%%DATADIR%%/%%PORTVERSION%%/doc/html/figures/contour2.gif
+%%DATADIR%%/%%PORTVERSION%%/doc/html/figures/contour3.gif
 %%DATADIR%%/%%PORTVERSION%%/doc/html/figures/dynamics1.gif
 %%DATADIR%%/%%PORTVERSION%%/doc/html/figures/dynamics10.gif
 %%DATADIR%%/%%PORTVERSION%%/doc/html/figures/dynamics2.gif
@@ -1648,6 +1651,7 @@
 %%DATADIR%%/%%PORTVERSION%%/tests/rtest_scalarp.mac
 %%DATADIR%%/%%PORTVERSION%%/tests/rtest_sign.mac
 %%DATADIR%%/%%PORTVERSION%%/tests/rtest_signum.mac
+%%DATADIR%%/%%PORTVERSION%%/tests/rtest_sqrt.mac
 %%DATADIR%%/%%PORTVERSION%%/tests/rtest_taylor.mac
 %%DATADIR%%/%%PORTVERSION%%/tests/rtest_translator.mac
 %%DATADIR%%/%%PORTVERSION%%/tests/rtest_trig.mac