--- Makefile.orig	2020-08-07 00:15:00 UTC
+++ Makefile
@@ -2,8 +2,7 @@
 
 #DDEBUG = -O0 -g -ggdb -DDEBUG=1
 
-CC = gcc -Wall -Wextra -Wsign-compare -Wconversion -Wmissing-prototypes \
--O3 -std=c99 $(DDEBUG)
+#CC = gcc -Wall -Wextra -Wsign-compare -Wconversion -Wmissing-prototypes -O3 -std=c99 $(DDEBUG)
 #CC = icc -Wall -O3 -std=c99 -Wmissing-prototypes $(DDEBUG)
 
 all:  check32 check64