enable backward-cpp for test

repertory/repertory_test/main.cpp

@@ -19,6 +19,10 @@
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   SOFTWARE.
 */
+#if !defined(PROJECT_STATIC_LINK)
+#include "backward.hpp"
+#endif
+
 #include "initialize.hpp"
 #include "test_common.hpp"
 #include "utils/error_utils.hpp"
@@ -33,6 +37,10 @@ std::size_t PROVIDER_INDEX{0U};
 #endif // _WIN32
 
 auto main(int argc, char **argv) -> int {
+#if !defined(PROJECT_STATIC_LINK)
+  static backward::SignalHandling sh;
+#endif
+
   if (not repertory::project_initialize()) {
     std::cerr << "fatal: failed to initialize repertory" << std::endl;
     return -1;