coverage: expose automake bug#10470 (distcheck-related)

* tests/distcheck-pr10470.test: New test.
* tests/Makefile.am (TESTS, XFAIL_TESTS): Add it.

Report and suggestions by Peter Rosin and Eric Blake.

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 8817b64f83adb732f5d913c733ee6921dfbd92b6..e10dbd537d8dcbcfb1b4d5f715bb45f5ed5c5d88 100644 (file)
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -23,6 +23,7 @@ auxdir2.test \
 cond17.test \
 dist-auxfile.test \
 dist-auxfile-2.test \
+distcheck-pr10470.test \
 gcj6.test \
 java-nobase.test \
 objext-pr10128.test \
@@ -352,6 +353,7 @@ distcheck-hook2.test \
 distcheck-missing-m4.test \
 distcheck-outdated-m4.test \
 distcheck-pr9579.test \
+distcheck-pr10470.test \
 distcheck-override-infodir.test \
 dmalloc.test \
 doc-parsing-buglets-colneq-subst.test \

diff --git a/tests/distcheck-pr10470.test b/tests/distcheck-pr10470.test
new file mode 100755 (executable)
index 0000000..e774dd7
--- /dev/null
+++ b/tests/distcheck-pr10470.test
@@ -0,0 +1,61 @@
+#! /bin/sh
+# Copyright (C) 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/>.
+
+# Ensure "make distcheck" does not experience racy failures on
+# systems (like MinGW/MSYS) that cannot remove a directory "in use"
+# by a process (e.g., that is its "current working directory").
+# See automake bug#10470.
+
+parallel_tests=no
+. ./defs || Exit 1
+
+set -e
+
+mkdir foo.d
+sh -c "cd foo.d && sleep '4'" &
+# Without this sleep, the "rm -rf foo.d" below would reliably beat
+# the "cd foo.d" in the subshell above, and the test would be always
+# skipped, even on MinGW/MSYS.
+sleep '1'
+rm -rf foo.d && skip_ 'system is able to remove "in use" directories'
+
+echo AC_OUTPUT >> configure.in
+
+cat > Makefile.am <<END
+TESTS = foo.test
+EXTRA_DIST= foo.test
+END
+
+cat > foo.test <<END
+#!/bin/sh
+sleep '4' &
+exit 0
+END
+chmod a+x foo.test
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE
+./configure
+
+# We can build the distribution.
+$MAKE distcheck >output 2>&1 || { cat output; Exit 1; }
+cat output
+# Sanity check: verify that our code has hit a problem removing
+# the distdir, but has recovered from it.
+grep "rm:.*$destdir" output || fatal_ "expected code path not covered"
+
+: