From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH 1/2] mk: overriding CC also overrides HOSTCC
Date: Tue, 24 Jun 2014 11:38:57 +0200
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To: Bruce Richardson <bruce.richardson-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
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Hi Bruce,

2014-06-24 01:23, Bruce Richardson:
> when overriding the CC variable on the commandline, the HOSTCC value
> was remaining at "gcc", which caused errors on Free BSD10 when using a gcc
> as e.g. gcc48, without a binary just called "gcc". This change overrides
> HOSTCC when CC is overridden, which means that setting CC=gcc48, will
> now also set HOSTCC=gcc48, allowing the "testhost" app to compile on BSD10

So you are mixing CC and HOSTCC which would break cross-compilation.
Why don't you set HOSTCC on command line?

-- 
Thomas