From 8c7571a75d7839702dc2626e91a5da9a564022cd Mon Sep 17 00:00:00 2001
From: Radomir Dopieralski <openstack@sheep.art.pl>
Date: Tue, 31 Oct 2017 20:55:11 +0100
Subject: [PATCH] Create the build directory before running gen_usb_descriptor

Otherwise it fails to create the file in that directory.
---
 ports/atmel-samd/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ports/atmel-samd/Makefile b/ports/atmel-samd/Makefile
index ef4012802c..2dd4802ba4 100644
--- a/ports/atmel-samd/Makefile
+++ b/ports/atmel-samd/Makefile
@@ -359,6 +359,7 @@ $(BUILD)/firmware.uf2: $(BUILD)/firmware.bin
 	python2 $(TOP)/tools/uf2/utils/uf2conv.py -b $(BOOTLOADER_SIZE) -c -o $@ $^
 
 $(BUILD)/autogen_usb_descriptor.c: tools/gen_usb_descriptor.py Makefile
+	install -d $(BUILD)
 	python3 tools/gen_usb_descriptor.py \
 		--manufacturer $(USB_MANUFACTURER)\
 		--product $(USB_PRODUCT)\