post-repo-split cleanup

.gitignore

@@ -0,0 +1,10 @@
+#=========================================================================
+# Git Ignore Files
+#=========================================================================
+# We explicitly ignore a default build directory and the autoconf
+# generated autom4te.cache directory. This makes it easy to do a clean
+# build under the source directory and still have it appear clean to git.
+
+build/
+autom4te.cache/
+