From owner-freebsd-ports@freebsd.org  Mon Sep 14 18:27:54 2015
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References: <CAHay0Ab4WLjfxBbN4BcqOyLQkZgyFwYfOj+geu=SqscKL9xvag@mail.gmail.com>
Subject: Re: Error Building devel/cmake
From: Walter Schwarzenfeld <w.schwarzenfeld@utanet.at>
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Date: Mon, 14 Sep 2015 20:27:44 +0200
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Hallo !

If you not want to install cmake-gui, comment out line 63 in the Makefile:
63         #${RM} ${WRKSRC}/Help/manual/cmake-gui.1.rst
(But now you can't install cmake-gui this will conflicting the manpage).

Or you compile it with  options DOCS and MANPAGES set to off.

greetings
Walter Schwarzenfeld