Use UTIL_LDFLAGS instead of LDFLAGS for linking sexyz to prevent linking

with unnecessary libs (libjs, libnspr4, libutil)

src/sbbs3/GNUmakefile

@@ -218,7 +218,7 @@ $(ASC2ANS): $(OBJODIR)/asc2ans.o
 # SEXYZ
 $(SEXYZ): $(SEXYZ_OBJS)
 	@echo Linking $@
-	$(QUIET)$(CC) $(LDFLAGS) $(MT_LDFLAGS) -o $@ $(SEXYZ_OBJS) $(SMBLIB_LIBS) $(XPDEV-MT_LIBS)
+	$(QUIET)$(CC) $(UTIL_LDFLAGS) $(MT_LDFLAGS) -o $@ $(SEXYZ_OBJS) $(SMBLIB_LIBS) $(XPDEV-MT_LIBS)
 
 # QWKNODES
 $(QWKNODES): $(QWKNODES_OBJS)