When use/import does not specify module name, parser fails to produce an error message

Consider the following sac program:

use /* missing */ : {test};

As it can be seen, we accidentally missed the name of the module we are using. The compiler dies, which is correct; but no error message is emitted:

$ sac2c_p y.sac
abort: Failed to construct a syntax tree for `y.sac'
compilation failed while Loading SAC program.

The sac2c version is:

sac2c 1.2-beta-BlackForest-611-g777dc
build-type: RELEASE
built-by: "tema" at 2017-11-23T15:59:10