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Date: Mon, 17 Sep 2018 21:52:00 -0000
From: Joseph Myers <joseph@codesourcery.com>
To: Mao Han <han_mao@c-sky.com>
CC: <libc-alpha@sourceware.org>, <c-sky_gcc_upstream@c-sky.com>,
	<gnu-csky@mentor.com>
Subject: Re: [PATCH v4 10/13] C-SKY: Build Infastructure
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References: <cover.1536715883.git.han_mao@c-sky.com> <8dfd02f152c5b4082976c99110617ccb99d76047.1536720821.git.han_mao@c-sky.com>
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On Wed, 12 Sep 2018, Mao Han wrote:

> +ifeq ($(subdir),debug)
> +CFLAGS-backtrace.c += -funwind-tables
> +endif

This is in the generic debug/Makefile, so you shouldn't need it here.

-- 
Joseph S. Myers
joseph@codesourcery.com