#
# In that code, the checks are done against pre-processor expressions,
# as defined in the C header files at compile time. In the routine
# below, a Perl variable is created for each expression used as part of
# one of these checks, assigned the value of the related pre-processor
#
# In that code, the checks are done against pre-processor expressions,
# as defined in the C header files at compile time. In the routine
# below, a Perl variable is created for each expression used as part of
# one of these checks, assigned the value of the related pre-processor