search for: r_initinpstream

Thanks to Matthias Burger, I came to know that in r-devel, a lot of symbols are no longer exported in libR.so, which breaks the package rpvm since it calls these functions in serialize.c. R_InitInPStream R_InitOutPStream Since the change is fairly recent (earlier this month), I guess the core team will be making further changes. In any case, please add these two to the exported list. Thanks, Michael