Update documentation somewhat
diff --git a/README-CVS b/README-CVS
new file mode 100644
index 0000000..dad18ea
--- /dev/null
+++ b/README-CVS
@@ -0,0 +1,9 @@
+
+If you use the CVS version of strace there will be some files missing
+that you need to build strace. These files are generated by tools from
+the GNU autoconf package.
+
+In order to generate the missing package you can run the cvsbuild script.
+For some architectures (powerpc, (ultra)sparc) you need a recent version
+of autoconf, otherwise it might fail to recognize your system.
+