More detailed errors from zip_close.

diff --git a/src/lib/cinema_kdms.cc b/src/lib/cinema_kdms.cc
index 7952b7ab22e3f22e3b75f7bb03ea084791234721..158ce8179abc7aa5926c723a7332ff3182443df0 100644 (file)
--- a/src/lib/cinema_kdms.cc
+++ b/src/lib/cinema_kdms.cc
@@ -74,7 +74,8 @@ CinemaKDMs::make_zip_file (boost::filesystem::path zip_file, dcp::NameFormat nam
        }
 
        if (zip_close (zip) == -1) {
        }
 
        if (zip_close (zip) == -1) {

-               throw runtime_error ("failed to close ZIP archive");
+               zip_error_t* e = zip_get_error (zip);
+               throw runtime_error (String::compose("failed to close ZIP archive (%1, %2)", zip_error_code_zip(e), zip_error_code_system(e)));

        }
 }
 
        }
 }