https://sources.debian.org/patches/dvorak7min/1.6.1+repack-4/makefile-flags.patch/
--- a/Makefile
+++ b/Makefile
@@ -6,6 +6,7 @@
 #NASTINESS = -DNASTY_AS_USUAL
 #BEEPS = -DBEEPS_ARENT_IRRITATING
 #FLASHES = -DFLASHES_ARENT_IRRITATING
+#PROF = -g0 -O2
 COLORS = -DNO_COLORS_PLEASE
 
 # Max length of imported texts.  Set it to 0 or comment it if you don't want
@@ -15,11 +16,10 @@
 ### That's all ###
 
 CC      = gcc
-PROF    = -g0 -O2
-CFLAGS  = $(PROF) -Wall \
+CFLAGS  += -Wall \
 	$(PRETTINESS) $(NASTINESS) $(BEEPS) $(FLASHES) $(COLORS) \
-	$(LIMIT_LENGTH)
-LDFLAGS = $(PROF)
+	$(LIMIT_LENGTH) $(PROF)
+LDFLAGS += $(PROF)
 LIBS    = -lncurses
 
 OBJECTS = dvorak7min.o lessons.o