Hello, I'm trying to compile Shogun 0.4.4 from source on Redhat Enterprise Linux 4 (update 5). I've compiled and installed R-2.6.1 already and that seems to work fine. I had some initial problems finding R development files, which were fixed by setting CFLAGS='-I/tmp/R-2.6.1/ include' and CXXFLAGS='-I/tmp/R-2.6.1/include' in my shell before running ./configure --interface=R. After configuring and then running make I get the following error: ... ./gui/R.cpp.o(.text+0xc19):gui/R.cpp:317: undefined reference to `R_CHAR' ./gui/R.cpp.o(.text+0xd39): In function `R_init_sg(_DllInfo*)': gui/R.cpp:439: undefined reference to `R_registerRoutines' collect2: ld returned 1 exit status make: *** [sg.so] Error 1 Any ideas? I looked for some configure option that might disable GUI features but didn't find anything relevant. Thanks, -- Brian McNally