From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas.monjalon@6wind.com>
Subject: Re: [PATCH 3/3] eal: remove references to execinfo.h for
	musl
Date: Fri, 10 Mar 2017 13:40:20 +0100
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References: <1489147132-40922-1-git-send-email-wei.dai@intel.com>
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Cc: dev@dpdk.org, john.mcnamara@intel.com, david.marchand@intel.com
To: Wei Dai <wei.dai@intel.com>
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2017-03-10 19:58, Wei Dai:
> @@ -47,6 +50,7 @@
>  /* dump the stack of the calling core */
>  void rte_dump_stack(void)
>  {
> +#ifndef RTE_LIBC_MUSL
>  	void *func[BACKTRACE_SIZE];
>  	char **symb = NULL;
>  	int size;
> @@ -64,6 +68,7 @@ void rte_dump_stack(void)
>  	}
>  
>  	free(symb);
> +#endif
>  }

There are probably other libc implementations not supporting this feature.
Instead of calling it "RTE_LIBC_MUSL", it should something like
"ENABLE_BACKTRACE".
Then you can add a musl section in the Linux quick start guide.