.gitignore in ray-0.0.0.pre1 vs .gitignore in ray-0.0.0.pre2

@@ -3,5 +3,20 @@
 pkg/
 *.rbc
 *.gems
 *.o
 *.gemspec
+*.elf
+*.tar.gz
+*.tar.bz2
+*.prx
+*.PBP
+*.log
+ext/Makefile
+*.so
+*.SFO
+*.bundle
+Makefile
+ext/ray
+/ext/mkmf.log
+ruby-1.8.*/
+ruby_stdlib/