diff --git a/expat/.gitignore b/expat/.gitignore
index 397ba8b5..108c2093 100755
--- a/expat/.gitignore
+++ b/expat/.gitignore
@@ -1,3 +1,5 @@
+m4/
+aclocal.m4
 Makefile
 .libs
 *.la
diff --git a/expat/conftools/.gitignore b/expat/conftools/.gitignore
index 159a9148..43c4c8e1 100644
--- a/expat/conftools/.gitignore
+++ b/expat/conftools/.gitignore
@@ -1,3 +1,6 @@
+config.guess
+config.sub
+install-sh
 libtool.m4
 ltconfig
 ltmain.sh