I did a uname -a and this is what my system is:
Linux xyz 2.6.9-89.ELsmp #1 SMP Mon Apr 20 10:33:05 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
I tried to do a "make linux" and got this error:
/usr/bin/ld: skipping incompatible /usr/X11R6/lib/libXm.a when searching for -lXm
/usr/bin/ld: cannot find -lXm
collect2: ld returned 1 exit status
make: *** Error 1
make: Leaving directory `/home/jkrim/nedit-5.5/source'
make: *** Error 2
"libXm" is the motif library, make sure you have an appropriate "openmotif" or "lesstif" package installed, then include the path to where it stores libXm.so or libXm.a in the LFLAGS in the makefile.