avoid dup test with ./run retest

git-svn-id: svn://svn.lighttpd.net/xcache/trunk@1274 c26eb9a1-5813-0410-bd6c-c2e55f420ca7

Makefile.frag

@@ -31,5 +31,7 @@ xcachesvnclean: clean
 
 xcachetest: all
 	$(SED) "s#\\./\\.libs/#$(top_builddir)/\\.libs/#" < $(srcdir)/xcache-test.ini > $(top_builddir)/tmp-php.ini
-	TEST_PHP_SRCDIR=$(srcdir) $(srcdir)/run-xcachetest $(TESTS) $(TEST_ARGS) -c $(top_builddir)/tmp-php.ini
+	if test -z "$(TESTS)"; then \
+		TEST_PHP_SRCDIR=$(srcdir) $(srcdir)/run-xcachetest $(TEST_ARGS) -c $(top_builddir)/tmp-php.ini; \
+	fi
 	$(srcdir)/run-xcachetest $(TESTS) $(TEST_ARGS) -c $(top_builddir)/tmp-php.ini