From fb3c2b2bc9b5c70ea8399cefc7696e77044b7abb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cenk=20G=C3=BCndo=C4=9Fan?= <mail@cgundogan.de>
Date: Mon, 7 Nov 2016 16:01:04 +0100
Subject: [PATCH] newlib: don't use -isystem for default includes

---
 sys/newlib/Makefile.include | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/sys/newlib/Makefile.include b/sys/newlib/Makefile.include
index 94e526e0db..5e425fc67f 100644
--- a/sys/newlib/Makefile.include
+++ b/sys/newlib/Makefile.include
@@ -17,6 +17,7 @@ endif
 
 export LINKFLAGS += -lc -lnosys
 
+ifeq (1,$(USE_NEWLIB_NANO))
 # Search for Newlib include directories
 
 # Since Clang is not installed as a separate instance for each crossdev target
@@ -50,14 +51,10 @@ NEWLIB_INCLUDE_DIR ?= $(firstword $(wildcard $(NEWLIB_INCLUDE_PATTERNS)))
 ifeq (,$(NEWLIB_INCLUDE_DIR))
   NEWLIB_INCLUDE_DIR := $(abspath $(wildcard $(dir $(shell which $(PREFIX)gcc))../$(TARGET_ARCH)/include))
 endif
-
-NEWLIB_INCLUDES := -isystem $(NEWLIB_INCLUDE_DIR)
-
-ifeq (1,$(USE_NEWLIB_NANO))
   NEWLIB_NANO_INCLUDE_DIR ?= $(NEWLIB_INCLUDE_DIR)/nano
   # newlib-nano overrides newlib.h and its include dir should therefore go before
   # the regular newlib include dir.
-  NEWLIB_INCLUDES := -isystem $(NEWLIB_NANO_INCLUDE_DIR) $(NEWLIB_INCLUDES)
+  NEWLIB_INCLUDES := -isystem $(NEWLIB_NANO_INCLUDE_DIR)
 endif
 
 # Newlib includes should go before GCC includes.
-- 
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