construct the "sysresources.zip" datablock to be bound into the executable

Makefile

@@ -21,7 +21,7 @@ all:
 	make output
 
 output:
-	mkdir output
+	mkdir -p output
 	cp src/upiwin output
 	cp scripts/*.py output
 

src/Makefile

@@ -22,7 +22,7 @@ SPLASHSCREEN=splash-erbosoft.png
 OBJS=main.o sysinput.o ep_init.o ep_upiwin.o ep_backlight.o ep_msg.o ep_graphics.o ep_devctxt.o ep_bitmap.o \
      ep_upiwin_tmp.o ep_util.o fbinit.o rect.o gfxobj.o devctxt.o dc_screen.o fontengine.o \
 	 bitmap.o stockobj.o fbprimitive.o log.o gpio.o msg_queue.o time_func.o config.o \
-	 i_freehand.o i_line.o i_rect.o i_fillrect.o i_undo.o i_clear.o splash.o
+	 i_freehand.o i_line.o i_rect.o i_fillrect.o i_undo.o i_clear.o splash.o sysresources.o
 LIBS=-lpython3.7m -lcrypt -lfreetype -lbcm2835 -lpthread -ldl -lutil -lm
 CFLAGS=-I/usr/include/python3.7m -I/usr/include/freetype2 -I/usr/include/libpng16 \
        -Wall -Werror -fstack-protector -fwrapv -fno-PIE -g -O3 -DDEBUG_ASSERT
@@ -37,6 +37,14 @@ upiwin: $(OBJS)
 .c.o:
 	gcc -c $(CFLAGS) $<
 
+sysresources.o: sysresources.zip
+	objcopy -I binary -O elf32-littlearm -B arm --rename-section \
+		.data=.rodata,alloc,load,readonly,data,contents sysresources.zip sysresources.o
+
+sysresources.zip: splash.bin
+	-rm sysresources.zip
+	zip sysresources.zip splash.bin
+
 %.o: %.bin
 	objcopy -I binary -O elf32-littlearm -B arm --rename-section \
 		.data=.rodata,alloc,load,readonly,data,contents $< $@