diff --git a/m4/.gitignore b/m4/.gitignore
index 244385a..9a65f61 100644
--- a/m4/.gitignore
+++ b/m4/.gitignore
@@ -3,3 +3,4 @@
 !/aclocal.m4
 !/dospaths.m4
 
+/gnulib-comp.m4
diff --git a/tests/scripts/features/errors b/tests/scripts/features/errors
index 1e15562..d92c144 100644
--- a/tests/scripts/features/errors
+++ b/tests/scripts/features/errors
@@ -41,8 +41,9 @@ unlink($unk);
 my $err = $ERR_no_such_file;
 
 run_make_test(qq!
-one: ; -$unk xx yy
+one: env ; -$unk xx yy
 two: ; $unk aa bb
+env:;env
 !,
               'one', "$unk xx yy\n#MAKE#: $unk: $err\n#MAKE#: [#MAKEFILE#;2: one] Error 127 (ignored)\n");