diff --git a/tools/.cvsignore b/tools/.cvsignore
new file mode 100644
index 0000000000000000000000000000000000000000..70845e08eb0b807b1022dc47cd27e67f726d4a0f
--- /dev/null
+++ b/tools/.cvsignore
@@ -0,0 +1 @@
+Makefile.in
diff --git a/tools/.gitignore b/tools/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..10a7e8d6c778aa7a3a80886633eb4b1b20dfb1b4
--- /dev/null
+++ b/tools/.gitignore
@@ -0,0 +1 @@
+/Makefile.in