Stefan Fiedler:

package/base/mysql/mysql.desc

@@ -44,11 +44,22 @@
 
 [L] LGPL
 [S] Stable
-[V] 4.1.20
 [P] X -?---5---9 125.400
 
+#if xpkg == mysql41
+[V] 4.1.20
 [D] 2028995469 mysql-4.1.20.tar.gz http://gd.tuwien.ac.at/db/mysql/Downloads/MySQL-4.1/
 
 [CV-URL] ftp://gd.tuwien.ac.at/db/mysql/Downloads/MySQL-4.1/
 [CV-INCL] '^mysql-4.1.*tar'
+#endif
+
+#if xpkg == mysql50
+[V] 5.0.26
+[D] 1810250711 mysql-5.0.26.tar.gz http://gd.tuwien.ac.at/db/mysql/Downloads/MySQL-5.0/
+#endif
+
+[CV-URL] ftp://gd.tuwien.ac.at/db/mysql/Downloads/MySQL-5.0/
+[CV-INCL] '^mysql-5.0.*tar'
+#endif
 

package/base/mysql/pkgmapper.in

@@ -0,0 +1,3 @@
+case $pkg in
+	mysql41|mysql50) pkg=mysql ;;
+esac

package/base/mysql/preconfig.in

@@ -0,0 +1,3 @@
+pkgfork mysql mysql41 unflag CORE
+pkgfork mysql mysql50
+pkgremove mysql