Compiling Radix Sort on linux Compiling radix sort provided as SDK example on fedora 8

I am running radix sort provided by CUDA SDK samples( on a system with fedora 8 & CUDA version 2.1
It has a main folder NVIDIA GPU Computing SDK & subfolders C and shared. C has all the code,makefile&common. while shared has header files.
I go to the NVIDIA GPU Computing SDK/C folder and compile using make. then I get following error

make[1]: Entering directory /home/su1015/project/radix/NVIDIA GPU Computing SDK/shared' make[1]: *** No targets specified and no makefile found. Stop. make[1]: Leaving directory /home/su1015/project/radix/NVIDIA GPU Computing SDK/shared’
make: *** [shared/] Error 2

I dont understand why it needs to compile the code in shared folder… when I am going to C folder & using make… As the shared folder just holds .h files it does not need makefile…

I am new to CUDA & Linux Please help me on this…