Question 1: install R..dmg How can I install R in ~/Applications and Rframework in ~/Library, instead of / Library? My preferred behavior is that if I choose /Applications for the app, framework goes into /Library; if I choose ~/Applications, libraries go into ~/Library (and don't ask me root password in this case). Question 2: build from source I built with this export CC=gcc export F77=g95 export CPPFLAGS=-Df2cFortran ./configure --with-blas="-framework vecLib" --with-lapack make make goes quite a long way until ... /Users/zpzhang/Applications/g95-install/lib/gcc-lib/powerpc-apple- darwin6.8/4.0.1/libf95.a(string.o) definition of common __g95_null_string (size 1) /usr/bin/libtool: internal link edit command failed make[3]: *** [libR.dylib] Error 1 make[2]: *** [R] Error 2 make[1]: *** [R] Error 1 make: *** [R] Error 1 By the way, a lot of gcc: unrecognized option '-no-cpp-precomp' Any suggestions? thanks. Zepu