From 0c95f6f8e512d88bd9ead6d6ae849d983ddcb167 Mon Sep 17 00:00:00 2001
From: Ronald <ronald@bto.grundel>
Date: Sat, 31 Oct 2020 23:09:23 +0100
Subject: [PATCH 1/3] Optimize compilation and garbage-collect unused
 sections(functions)

---
 RaspberryPi_JetsonNano/c/Makefile | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/RaspberryPi_JetsonNano/c/Makefile b/RaspberryPi_JetsonNano/c/Makefile
index 2b6ad80..201509e 100644
--- a/RaspberryPi_JetsonNano/c/Makefile
+++ b/RaspberryPi_JetsonNano/c/Makefile
@@ -17,12 +17,13 @@ DEBUG = -D DEBUG
 USELIB_RPI = USE_WIRINGPI_LIB
 # USELIB_RPI = USE_DEV_LIB
 
+LIB_RPI=-Wl,--gc-sections
 ifeq ($(USELIB_RPI), USE_BCM2835_LIB)
-    LIB_RPI = -lbcm2835 -lm 
+    LIB_RPI += -lbcm2835 -lm 
 else ifeq ($(USELIB_RPI), USE_WIRINGPI_LIB)
-    LIB_RPI = -lwiringPi -lm 
+    LIB_RPI += -lwiringPi -lm 
 else ifeq ($(USELIB_RPI), USE_DEV_LIB)
-    LIB_RPI = -lm 
+    LIB_RPI += -lm 
 endif
 DEBUG_RPI = -D $(USELIB_RPI) -D RPI
 
@@ -42,7 +43,7 @@ JETSON: JETSON_DEV JETSON_epd
 
 TARGET = epd
 CC = gcc
-MSG = -g -O0 -Wall
+MSG = -g -O -ffunction-sections -fdata-sections -Wall
 CFLAGS += $(MSG)
 
 RPI_epd:${OBJ_O}

From 65fe361639fa4891c1c3e13cafd5782bf26c5570 Mon Sep 17 00:00:00 2001
From: Ronald <ronald@bto.grundel>
Date: Sat, 31 Oct 2020 23:13:47 +0100
Subject: [PATCH 2/3] Don't commit binaries

---
 RaspberryPi&JetsonNano/c/.gitignore | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 RaspberryPi&JetsonNano/c/.gitignore

diff --git a/RaspberryPi&JetsonNano/c/.gitignore b/RaspberryPi&JetsonNano/c/.gitignore
new file mode 100644
index 0000000..7f1cc0a
--- /dev/null
+++ b/RaspberryPi&JetsonNano/c/.gitignore
@@ -0,0 +1,2 @@
+bin/
+epd

From 001ebff6a09303049381fdad1ad9944c034f36e7 Mon Sep 17 00:00:00 2001
From: Ronald <ronald@bto.grundel>
Date: Sun, 1 Nov 2020 00:16:03 +0100
Subject: [PATCH 3/3] automatically create the 'bin' object dir

---
 RaspberryPi_JetsonNano/c/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/RaspberryPi_JetsonNano/c/Makefile b/RaspberryPi_JetsonNano/c/Makefile
index 201509e..df7a6fe 100644
--- a/RaspberryPi_JetsonNano/c/Makefile
+++ b/RaspberryPi_JetsonNano/c/Makefile
@@ -54,6 +54,8 @@ JETSON_epd:${OBJ_O}
 	echo $(@)
 	$(CC) $(CFLAGS) $(OBJ_O) $(JETSON_DEV_C) -o $(TARGET) $(LIB_JETSONI) $(DEBUG)
 
+$(shell mkdir -p $(DIR_BIN))
+
 ${DIR_BIN}/%.o:$(DIR_Examples)/%.c
 	$(CC) $(CFLAGS) -c  $< -o $@ -I $(DIR_Config) -I $(DIR_GUI) -I $(DIR_EPD) $(DEBUG)