Fluent EOS udf
 

Hi Guys, i have a question about compiling eos udf

my problem set is supercritical methane flow, so need to write material properties with NIST table or eos udf

before i write code, found eos code in fluent udf guide
but when i compile this, fluent can't read this file
in consoles, it shows "nothing"

i don't know what is problem, my thought is something with DEFINE_ON_DEMAND(nothing) line but have no idead what this is

i attached my eos code written with C

Can you guys help for this?