Enable O3 optimization

Makefile

@@ -3,7 +3,7 @@ VERSION = 1.4
 PREFIX ?= /usr/local
 MANPREFIX = $(PREFIX)/share/man
 
-CFLAGS += -O2 -Wall -Wextra -Wno-unused-parameter
+CFLAGS += -O3 -Wall -Wextra -Wno-unused-parameter
 LDLIBS = -lreadline
 
 ifeq ($(shell pkg-config ncursesw && echo 1),1)

scripts/make_native/Makefile.native

@@ -1,5 +1,4 @@
 # This Makefile optimizes native builds. It
-#   - enables -O3 optimization
 #   - builds for native architecture (-march=native)
 #   - does not have debug build option
 #