libdwfl: Try opening files all installed compression libraries.

rhbz #909481. When a compression library wasn't installed libdwfl would
not try the next compression library for opening a file. Retry with the
next available compression library if a previous one isn't installed. Also
disable tests that depend on a particular compression library
(run-readelf-s.sh and run-dwflsyms.sh) if that library isn't installed.

Signed-off-by: Mark Wielaard <mjw@redhat.com>
diff --git a/tests/ChangeLog b/tests/ChangeLog
index c1e0ef9..d181cd5 100644
--- a/tests/ChangeLog
+++ b/tests/ChangeLog
@@ -1,3 +1,8 @@
+2013-02-22  Mark Wielaard  <mjw@redhat.com>
+
+	* Makefile.am (TESTS): Remove run-readelf-s.sh and run-dwflsyms.sh.
+	(LZMA): Add run-readelf-s.sh and run-dwflsyms.sh to TESTS.
+
 2013-02-15  Mark Wielaard  <mjw@redhat.com>
 
 	* testfile-dwzstr.bz2: New testfile.