Using R and makefile from Unix systems is pretty easy. However, when I try to use both tools in windows I have problems with settings. To use make in windows I installed Rtools, but to run a Makefile the Rscript doesn't find some libraries. These are installed in the default directory, and others are installed in my user directory. This is an example of this issue. How could I do to run a makefile and the script look at both paths?