Force type-casting for member variables. For some member that need a casting for the type is that what we want. For example, casting a void * type to a struct pointer type. This force will skip type checking, but it works for the variables with a generic type and we want to specialize its type.

m4datadir = $(datadir)/mb
dist_m4data_DATA = foreach.m4 mb_c_header.m4 mb_c_source.m4
dist_bin_SCRIPTS = svg2code.py