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@@ -21,7 +21,7 @@
Thorn {\tt IOSDF} provides I/O methods for 1D, 2D, and 3D output of
grid arrays and grid functions into files in SDF format. The precise
format is designed for visualisation using the clients {\tt xvs} and
-{\tt DV} (see \url{http://localhost/CactusWebSite/VizTools/DataVaultXVSutils.html} for details).
+{\tt DV} (see \url{http://www.cactuscode.org/VizTools/DataVaultXVSutils.html} for details).
\end{abstract}
\section{Purpose}
@@ -143,10 +143,9 @@ invoke I/O methods by application thorns please see the documentation of thorn
%
{\bf Building Cactus configurations with {\tt IOSDF}}\\
%
-In order to build thorn {\tt IOSDF} an external SDF installation (with includes
-and libraries) is required. You must specify the location of this SDF
-installation via the configure-time option\\
-\centerline{\tt SDF\_DIR=<your\_SDF\_installation\_dir>}.
+Thorn {\tt IOSDF} requires the capability {\tt SDF} which is provided eg.
+by thorn {\tt CactusExternal/SDF}. You will need to include this thorn
+in your ThornList.
Since {\tt IOSDF} uses parameters from {\tt IOUtil} it also needs this I/O
helper thorn be compiled into Cactus and activated at runtime in the