diff --git a/lib/cuda/README b/lib/cuda/README
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+This directory has source files to build a library that LAMMPS
+links against when using the USER-CUDA package.
+
+When you are done building this library, two files should
+exist in this directory:
+
+liblammpscuda.a		the library LAMMPS will link against
+Makefile.lammps		settings the LAMMPS Makefile will import
+
+The latter file will have settings like this (can be omitted if blank):
+
+user-cuda_SYSINC = -I$(CUDA_INSTALL_PATH)/include 
+user-cuda_SYSLIB = -lcuda -lcudart -lrt 
+user-cuda_SYSPATH = -L$(CUDA_INSTALL_PATH)/lib64 -L$(CUDA_INSTALL_PATH)/lib $(CUDA_USRLIB_CONDITIONAL)
+
+SYSINC is for settings needed to compile LAMMPS source files
+SYSLIB is for additional system libraries needed by this package
+SYSPATH is the path(s) to where those libraries are
+
+You must insure these settings are correct for your system, else
+the LAMMPS build will likely fail.
+
+-------------------------------------------------------------------------
+
+Christian - there needs to additional info here about how
+to build the lammpscuda lib.