I know this is an old thread, but I have exactly the same problem. In my case I am trying to use PAR/pp to package up my stuff and field it. I tried adding the _Inline directory hoping that this would make everyone happy, and keep the recompile from occurring, but it didn't work. The approach above sounds promising, but I cannot get it to work. Perhaps a working culled down example doing something simple like "hello world" in Inline::C? I wish work offered me the time to dig into the guts of Inline::C and figure this out myself, but it doesn't. Any help much appreciated.