>From e2a28c6ec8caab33beead9f9f156b36ae0b437ac Mon Sep 17 00:00:00 2001
From: Torsten Landschoff <address@hidden>
Date: Sun, 15 Nov 2009 01:24:41 +0100
Subject: [PATCH 1/5] Add a test case: Undefined symbols are an error with -no-undefined set.

---
 Makefile.am          |    3 +-
 tests/noundefined.at |   53 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+), 1 deletions(-)
 create mode 100644 tests/noundefined.at

diff --git a/Makefile.am b/Makefile.am
index d2033c5..f3ef5c4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -496,7 +496,8 @@ TESTSUITE_AT	= tests/testsuite.at \
 		  tests/configure-iface.at \
 		  tests/stresstest.at \
 		  tests/cmdline_wrap.at \
-		  tests/darwin.at
+		  tests/darwin.at \
+		  tests/noundefined.at
 
 EXTRA_DIST     += $(srcdir)/$(TESTSUITE) $(TESTSUITE_AT) $(srcdir)/tests/package.m4
 
diff --git a/tests/noundefined.at b/tests/noundefined.at
new file mode 100644
index 0000000..a32e4b6
--- /dev/null
+++ b/tests/noundefined.at
@@ -0,0 +1,53 @@
+# noundefined.at -- test -no-undefined handling     -*- Autotest -*-
+
+#   Copyright (C) 2009 Free Software Foundation, Inc.
+#   Written by Torsten Landschoff, 2009.
+#
+#   This file is part of GNU Libtool.
+#
+# GNU Libtool 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 of
+# the License, or (at your option) any later version.
+#
+# GNU Libtool 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 GNU Libtool; see the file COPYING.  If not, a copy
+# can be downloaded from  http://www.gnu.org/licenses/gpl.html,
+# or obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+####
+
+AT_SETUP([Check undefined symbols vs. -no-undefined])
+AT_KEYWORDS([libtool noundefined])
+
+# When creating shared libraries, I prefer to know of undefined symbols
+# before installation. I would expect the libtool -no-undefined flag
+# to report any undefined symbols, for two reasons:
+# a) I would like to be told before installation that I have a typo or a
+#    missing library.
+# b) For portability, I'd rather note on systems that allow undefined symbols
+#    that my code is not portable to a system disallowing them.
+# This test is to check that undefined symbols are noticed when building
+# a shared library when declaring that all symbols should be defined.
+
+AT_CHECK([$LIBTOOL --features | grep 'disable shared libraries' && (exit 77)],
+	 [1], [ignore])
+
+AT_DATA(problem.c,
+[[
+extern int undef_func(int a);
+int ref_undef()
+{
+    undef_func(42);
+}
+]])
+
+LT_AT_CHECK([$LIBTOOL --mode=compile $CC $CPPFLAGS $CFLAGS -c -o problem.lo problem.c],[0],[ignore],[ignore])
+LT_AT_CHECK([$LIBTOOL --mode=link $CC $CPPFLAGS $CFLAGS -shared -no-undefined -o libproblem.la -rpath /foo problem.lo],[1],[stdout],[stderr])
+
+AT_CLEANUP
-- 
1.6.5.2