From f3866a6b89c1de71e394f0eb8ae5bb331cfee860 Mon Sep 17 00:00:00 2001
From: Pat Thoyts <patthoyts@users.sourceforge.net>
Date: Fri, 3 May 2019 21:16:38 +0100
Subject: [PATCH] Makefile: support unix builds

---
 Makefile | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 9724f46..c0ff095 100644
--- a/Makefile
+++ b/Makefile
@@ -6,10 +6,16 @@ F_CPU   := 16000000UL
 INC     := -I.
 AVRDUDE := avrdude -c usbasp -p $(DEVICE) -C $(AVR_DIR)\etc\avrdude.conf
 
+uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
+
 CC      := avr-gcc
 LD      := avr-gcc
 OBJCOPY := avr-objcopy
+ifeq ($(uname_S),Windows)
 RM      := del >NUL
+else
+RM      := rm -f
+endif
 CFLAGS  :=-Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow \
           -std=gnu99 -fshort-enums -pedantic-errors -Os -mcall-prologues \
           -mmcu=$(DEVICE) -DF_CPU=$(F_CPU)
@@ -26,10 +32,10 @@ all: $(PROJECT).hex
 
 %.hex: %.elf
 	$(QUIET_OBJCOPY) -j .text -j .data -O ihex $< $@
-    
+
 %.elf: %.o
 	$(QUIET_LD) $(LDFLAGS) $< -o $@
-    
+
 %.o: %.c
 	$(QUIET_CC) $(CFLAGS) $(INC) -c $<
 
-- 
2.23.0