Hello, the arm package is failing to install, it says I need gnu make but it's not clear how I specify which make to use in the R environment. For example I already have gmake installed. How to I instruct R to use it? * Installing *source* package 'Matrix' ... usage: make [-BeikNnqrstWX] [-D variable] [-d flags] [-f makefile] [-I directory] [-J private] [-j max_jobs] [-m directory] [-T file] [-V variable] [variable=value] [target ...] *** You need "GNU make" for building this package from the sources ERROR: configuration failed for package 'Matrix' ** Removing '/usr/local/nb40i386/R-2.7.1/lib/R/library/Matrix' best regards, George