# if UseInstalledCDE
# define DtDocBook dtdocbook
# else
-# define DtDocBook $(CLIENTENVSETUP) $(DTLCXENVSETUP) $(CDESRC)/dtdocbook/doc2sdl/dtdocbook
+# define DtDocBook $(CLIENTENVSETUP) $(DTLCXENVSETUP) $(KORNSHELL) $(CDESRC)/dtdocbook/doc2sdl/dtdocbook
# endif
#endif
#ifndef DtDocBookOptions