*.txt		Text file (DOS)
*_SJIS.txt	Japanese text file in Shift JIS (DOS)
*_Win.c		C source for Windows
*_Xm.c		C source for Motif
*_Gtk.c		C source for gtk+
*.c		C source for any environment
sp/*_Win.h	C header for Windows
sp/*_Xm.h	C header for Motif
sp/*_Gtk.h	C header for gtk+
sp/*P.h		C private header
sp/*.h		C header for any environment

