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From: Thomas Monjalon <thomas@monjalon.net>
To: David Hunt <david.hunt@intel.com>
Cc: dev@dpdk.org, anatoly.burakov@intel.com
Date: Mon, 23 Apr 2018 01:36:08 +0200
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In-Reply-To: <20180410154440.9723-1-david.hunt@intel.com>
References: <20180410150804.8774-1-david.hunt@intel.com>
 <20180410154440.9723-1-david.hunt@intel.com>
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Subject: Re: [dpdk-dev] [PATCH v2] mk: fix make defconfig on FreeBSD
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10/04/2018 17:44, David Hunt:
> On FreeBSD, make defconfig generates the config as "defconfig_x86_64-bsdapp-",
> which does not resolve to any known config file.
> 
> This fix starts by introducing a 'compiler' variable which is set by executing
> "${CC} --version" and pulling out the name of the compiler.
[...]
> +compiler:=$(filter clang gcc icc cc,$(shell ${CC} --version))

You should not invoke a shell command outside of a rule.
Please try to move it inside the defconfig context.

Reason for this query?
1/ avoid polluting the rest of the makefile
2/ it breaks doc compilation

Why it breaks doc?
Because it breaks "make -R showversion" which is called in doc/guides/conf.py.
Tip: CC is not always defined :)