From a5b2af1baf7c65cb2fa83684ff7b905458cfe0cf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=ABtan=20Harter?= <gaetan.harter@fu-berlin.de>
Date: Fri, 27 Jul 2018 21:01:55 +0200
Subject: [PATCH] Makefile.include: Fix BUILDRELPATH when RIOTPROJECT is
 CURDIR.

This fixes building an example that is outside of RIOT with docker and
also fixes building from a release archive.
---
 Makefile.include | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Makefile.include b/Makefile.include
index 351406751d..66c1b5d45f 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -66,7 +66,8 @@ endif
 MAKEOVERRIDES += $(foreach v,$(__DIRECTORY_VARIABLES),$(v)=$($(v)))
 
 # Path to the current directory relative to RIOTPROJECT
-BUILDRELPATH ?= $(CURDIR:$(RIOTPROJECT)/%=%)/
+# trailing '/' is important when RIOTPROJECT == CURDIR
+BUILDRELPATH ?= $(patsubst $(RIOTPROJECT)/%,%,$(CURDIR)/)
 
 # get host operating system
 OS := $(shell uname)