From 23a675f6212fc50730f45d49d9ae484fc2727335 Mon Sep 17 00:00:00 2001
From: Markus Towara <mtowara@gmail.com>
Date: Tue, 15 Nov 2016 21:57:15 +0100
Subject: [PATCH] reduce binary size of .hex still a few bytes bigger than with
 arduino but nothing major

---
 Marlin/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Marlin/Makefile b/Marlin/Makefile
index 03d93845b..81eeceada 100644
--- a/Marlin/Makefile
+++ b/Marlin/Makefile
@@ -387,6 +387,7 @@ CDEBUG = -g$(DEBUG)
 CWARN = -Wall -Wstrict-prototypes
 CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct \
 	-fshort-enums -w -ffunction-sections -fdata-sections \
+	-flto \
 	-DARDUINO=$(ARDUINO_VERSION)
 ifneq ($(HARDWARE_MOTHERBOARD),)
 CTUNING += -DMOTHERBOARD=${HARDWARE_MOTHERBOARD}
@@ -510,7 +511,7 @@ extcoff: $(TARGET).elf
 	# Link: create ELF output file from library.
 $(BUILD_DIR)/$(TARGET).elf: $(OBJ) Configuration.h
 	$(Pecho) "  CXX   $@"
-	$P $(CC) $(ALL_CXXFLAGS) -Wl,--gc-sections -o $@ -L. $(OBJ) $(LDFLAGS)
+	$P $(CC) $(ALL_CXXFLAGS) -Wl,--gc-sections,--relax -o $@ -L. $(OBJ) $(LDFLAGS)
 
 $(BUILD_DIR)/%.o: %.c Configuration.h Configuration_adv.h $(MAKEFILE)
 	$(Pecho) "  CC    $<"