diff --git a/bootstrap b/bootstrap
index b4afcdbcf..b7a45ffc4 100755
--- a/bootstrap
+++ b/bootstrap
@@ -77,6 +77,7 @@ openat
 perror
 pipe2
 pread
+ptsname_r
 read-file
 readlink
 select
diff --git a/m4/.gitignore b/m4/.gitignore
index ed73ab3ca..605cd2692 100644
--- a/m4/.gitignore
+++ b/m4/.gitignore
@@ -271,3 +271,6 @@
 /xstrtol.m4
 /xvasprintf.m4
 /yield.m4
+/isatty.m4
+/ptsname_r.m4
+/ttyname_r.m4