Add some commented out flags to linux hints file

sys/unix/hints/linux

@@ -28,6 +28,12 @@ CFLAGS+=-DHACKDIR=\"$(HACKDIR)\"
 CFLAGS+=-DDUMPLOG
 CFLAGS+=-DCONFIG_ERROR_SECURE=FALSE
 CFLAGS+=-DCURSES_GRAPHICS
+#CFLAGS+=-DEXTRA_SANITY_CHECKS
+#CFLAGS+=-DEDIT_GETLIN
+#CFLAGS+=-DSCORE_ON_BOTL
+#CFLAGS+=-DMSGHANDLER
+#CFLAGS+=-DTTY_TILES_ESCCODES
+#CFLAGS+=-DDLB
 
 LINK=$(CC)
 # Only needed for GLIBC stack trace:
@@ -37,6 +43,10 @@ WINSRC = $(WINTTYSRC) $(WINCURSESSRC)
 WINOBJ = $(WINTTYOBJ) $(WINCURSESOBJ)
 WINLIB = $(WINTTYLIB) $(WINCURSESLIB)
 
+# if TTY_TILES_ESCCODES
+#WINSRC += tile.c
+#WINOBJ += tile.o
+
 WINTTYLIB=-lcurses
 
 CHOWN=true