i think http://gcc.gnu.org/svn.html have a error.
"Using the SVN repository Assuming you have version 1.0.0 and higher of Subversion installed, you can check out the GCC sources using the following command: svn -q checkout svn://gcc.gnu.org/svn/gcc/trunk gcc " the right is svn -q checkout svn://gcc.gnu.org/svn/gcc/trunk or svn -q checkout svn://gcc.gnu.org/svn/gcc/trunk/gcc -- i'm a newbie in GCC community. Wei Chen