Besides obvious profits, it also enables some additional compiler warnings.
@@ -1,5 +1,5 @@
CC=gcc
-CFLAGS+=-I. -g -Wall -Wextra -Werror -pie -fPIC `pkg-config --cflags vchan-$(BACKEND_VMM)`
+CFLAGS+=-I. -g -O2 -Wall -Wextra -Werror -pie -fPIC `pkg-config --cflags vchan-$(BACKEND_VMM)`
LDFLAGS=-pie
LDLIBS=`pkg-config --libs vchan-$(BACKEND_VMM)` -lqrexec-utils