[PATCH 1/2] tests: expose bug in handling of user-defined makefile fragments generation

If a user defines one single Makefile fragment to be included (via Automake
includes) in his main Makefile.am, and givse a rule to generate that file
from other data, Automake will spuriously complain about with something
like "overrides Automake target '$(srcdir)/foo.am".

* t/am-include-only-one-generated-fragment.sh: Expose the bug (this test
is still XFAILing).
* t/list-of-tests.mk: Add the new test.

Signed-off-by: Stefano Lattarini <[email protected]>
---
 t/am-include-only-one-generated-fragment.sh | 48 +++++++++++++++++++++++++++++
 t/list-of-tests.mk                          |  2 ++
 2 files changed, 50 insertions(+)
 create mode 100644 t/am-include-only-one-generated-fragment.sh

diff --git a/t/am-include-only-one-generated-fragment.sh b/t/am-include-only-one-generated-fragment.sh
new file mode 100644
index 0000000..57a8aec
--- /dev/null
+++ b/t/am-include-only-one-generated-fragment.sh
@@ -0,0 +1,48 @@
+#! /bin/sh
+# Copyright (C) 2014 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/>.
+
+# Check that inclusion of only one '.am' that can be regenerated via
+# a user-defined Makefile rule does not incur in spurious automake
+# warnings about "target redefinition".
+
+. test-init.sh
+
+cat >> configure.ac <<'END'
+AC_CONFIG_FILES([sub/Makefile])
+AC_OUTPUT
+END
+
+cat > Makefile.am <<'END'
+include foobar.am
+$(srcdir)/foobar.am: $(srcdir)/touch.sh
+	$(SHELL) $(srcdir)/touch.sh $(srcdir)/foobar.am
+EXTRA_DIST = touch.sh
+END
+
+mkdir sub
+cat > sub/Makefile.am <<'END'
+include $(top_srcdir)/quux.am
+$(top_srcdir)/quux.am: $(top_srcdir)/touch.sh
+	$(SHELL) $(top_srcdir)/touch.sh $@
+END
+
+: > foobar.am
+: > quux.am
+
+$ACLOCAL
+$AUTOMAKE
+
+:
diff --git a/t/list-of-tests.mk b/t/list-of-tests.mk
index 462497e..28b512c 100644
--- a/t/list-of-tests.mk
+++ b/t/list-of-tests.mk
@@ -30,6 +30,7 @@ t/pm/Version3.pl
 
 XFAIL_TESTS = \
 t/all.sh \
+t/am-include-only-one-generated-fragment.sh \
 t/cond17.sh \
 t/gcj6.sh \
 t/override-conditional-2.sh \
@@ -142,6 +143,7 @@ t/amopts-location.sh \
 t/amopts-variable-expansion.sh \
 t/amsubst.sh \
 t/am-default-source-ext.sh \
+t/am-include-only-one-generated-fragment.sh \
 t/ansi2knr-no-more.sh \
 t/ar-lib.sh \
 t/ar-lib2.sh \
-- 
2.1.3