From 89b7339775f5b3d8d4afe88d5e95bdb0f82e4f30 Mon Sep 17 00:00:00 2001
From: Arti Zirk <arti.zirk@gmail.com>
Date: Wed, 19 Oct 2016 22:27:25 +0200
Subject: [PATCH] Enable Link Time Optimization and function garbage collection

---
 Makefile | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index fa74ada..dfd83ba 100644
--- a/Makefile
+++ b/Makefile
@@ -46,10 +46,14 @@ CFLAGS =	-Wall \
 			-mmcu=$(BOARD) \
 			-DF_CPU=16000000UL \
 			-DGIT_DESCR=\"$(shell git describe --abbrev=6 --dirty --always --tags --long)\" \
-			-std=c11
+			-std=c11 \
+			-flto \
+			-fdata-sections -ffunction-sections
 
 # Linker flags
-LDFLAGS = -mmcu=$(BOARD)
+LDFLAGS =	-mmcu=$(BOARD) \
+			-flto \
+			-Wl,-gc-sections
 
 OBJCOPYARGS =	-O ihex \
 				-R .eeprom