1 files changed, 41 insertions, 0 deletions
diff --git a/t/acloca20.sh b/t/acloca20.sh
new file mode 100755
index 000000000..030506639
--- /dev/null
+++ b/t/acloca20.sh
@@ -0,0 +1,41 @@
+#! /bin/sh
+# Copyright (C) 2006-2012 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Make sure aclocal does not write into symlinked aclocal.m4.
+
+am_create_testdir=empty
+. ./defs || Exit 1
+
+echo 'm4_define([FOO], [wrong foo])' > foo.m4
+echo 'm4_define([FOO], [right foo])' > acinclude.m4
+echo 'AC_INIT FOO' > configure.ac
+
+chmod a-w foo.m4
+
+# Setup.
+ln -s foo.m4 aclocal.m4 && test -h aclocal.m4 \
+  || skip_ "cannot create symlinks to files"
+
+# Sanity check.
+grep 'wrong foo' aclocal.m4 \
+  || fatal_ "weird error symlinking aclocal.m4 -> foo.m4"
+
+$ACLOCAL
+$AUTOCONF
+grep 'right foo' configure
+grep 'wrong foo' foo.m4
+
+: