diff --git a/.cvsignore b/.cvsignore
new file mode 100644
index 00000000..66beb274
--- /dev/null
+++ b/.cvsignore
@@ -0,0 +1,8 @@
+*.diff
+*.patch
+y.output
+y.tab.h
+lexer.c
+config_gram.c
+.cvsignore
+.depend