- <br><dt>CLooG-PPL version 0.15 or CLooG 0.16<dd>
-Necessary to build GCC with the Graphite loop optimizations. There
-are two versions available. CLooG-PPL 0.15 as well as CLooG 0.16.
-The former is the default right now. It can be downloaded from
-<a href="ftp://gcc.gnu.org/pub/gcc/infrastructure/">ftp://gcc.gnu.org/pub/gcc/infrastructure/</a> as
-<samp><span class="file">cloog-ppl-0.15.tar.gz</span></samp>.
-
- <p>CLooG 0.16 support is still in testing stage, but will be the
-default in future GCC releases. It is also available at
-<a href="ftp://gcc.gnu.org/pub/gcc/infrastructure/">ftp://gcc.gnu.org/pub/gcc/infrastructure/</a> as
-<samp><span class="file">cloog-0.16.1.tar.gz</span></samp>. To use it add the additional configure
-option <samp><span class="option">--enable-cloog-backend=isl</span></samp>. Even if CLooG 0.16
-does not use PPL, PPL is still required for Graphite.
-
- <p>In both cases <samp><span class="option">--with-cloog</span></samp> configure option should be used
-if CLooG is not installed in your default library search path.
+ <br><dt>CLooG 0.18.0<dd>
+Necessary to build GCC with the Graphite loop optimizations. It can be
+downloaded from <a href="ftp://gcc.gnu.org/pub/gcc/infrastructure/">ftp://gcc.gnu.org/pub/gcc/infrastructure/</a> as
+<samp><span class="file">cloog-0.18.0.tar.gz</span></samp>. The <samp><span class="option">--with-cloog</span></samp> configure option should
+be used if CLooG is not installed in your default library search path.
+CLooG needs to be built against ISL 0.11.1. Use <samp><span class="option">--with-isl=system</span></samp>
+to direct CLooG to pick up an already installed ISL, otherwise it will use
+ISL 0.11.1 as bundled with CLooG. CLooG needs to be configured to use GMP
+internally, use <samp><span class="option">--with-bits=gmp</span></samp> to direct it to do that.