1 files changed, 2 insertions, 1 deletions
diff --git a/makefile b/makefile
index b00a363..c064ff3 100644
--- a/makefile
+++ b/makefile
@@ -1,5 +1,5 @@
 
-CFLAGS=-Wall
+CFLAGS=-Wall -O2
 
 all: bin \
 	bin/1a bin/1b \
@@ -8,6 +8,7 @@ all: bin \
 	bin/4a bin/4b \
 	bin/5 \
 	bin/6 \
+	bin/7 \
 
 bin:
 	mkdir -p $@