From 00dd2fdcd8860d334ff14e1618bc1d7fecfbd9c7 Mon Sep 17 00:00:00 2001
From: Oleg Hahm <oleg@hobbykeller.org>
Date: Mon, 29 Aug 2016 19:14:01 +0200
Subject: [PATCH] sys: newlib: conditionally ignore wchar warning

For certain versions of newlib this warning is ignored.
---
 sys/newlib/Makefile.include | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/newlib/Makefile.include b/sys/newlib/Makefile.include
index d9c9617c2a..c4b59f757a 100644
--- a/sys/newlib/Makefile.include
+++ b/sys/newlib/Makefile.include
@@ -6,6 +6,7 @@ ifneq (,$(filter newlib_nano,$(USEMODULE)))
     USE_NEWLIB_NANO = 1
     ifeq ($(shell echo "int main(){} void _exit(int n) {(void)n;while(1);}" | LC_ALL=C $(CC) -xc - -o /dev/null -lc -specs=nano.specs -Wall -Wextra -pedantic 2>&1 | grep -q "use of wchar_t values across objects may fail" ; echo $$?),0)
         CFLAGS += -fshort-wchar
+        LINKFLAGS += -Wl,--no-wchar-size-warning
     endif
   endif
 endif