diff --git a/.gitignore b/.gitignore
index 5761abc..e87e1cc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,9 @@
 *.o
+Makefile
+autom4te.cache/
+config.h
+config.h.in
+config.log
+config.status
+configure
+ctags
diff --git a/BUILDING.md b/BUILDING.md
new file mode 100644
index 0000000..229a091
--- /dev/null
+++ b/BUILDING.md
@@ -0,0 +1,3 @@
+# Building ctags
+
+   % autoheader && autoconf && ./configure && make install